Source: https://www.scribd.com/document/299337905/Chain-Master
Timestamp: 2019-08-20 03:53:01
Document Index: 727111142

Matched Legal Cases: ['art 1', 'art 2', 'art 2', 'art 1', 'art 12', 'art 32', 'art 1', 'art 3', 'art 4', 'art 6', 'art 6', 'art 5', 'art 7', 'art 7', 'art 1']

Chain Master | Electromagnetic Compatibility | Occupational Safety And Health
saveSave Chain Master For Later
Yale_VS_VST
1SVR427035R0000-cp-e-24-10-0-power-supply-in115-230vac-out-24vdc-10a
D8, D8Plus, C1
Series B1 B9.1 in versions MB and SB
Dont start the assembly respectively the installation as well as
handling and maintenance until all requirements for the
compliance with the instruction manual are created and until
the personnel, who will be responsible for assembly,
installation, handling or maintenance has read and understood
These operating instructions address only experts and
competent persons in the sense of BGV D8, BGV A2 and BGV
C1 as well as personnel instructed by the operator.
Uferstrae 23
Tel.: +49-(0)3423-6922-0
Fax: +49-(0)3423-6922-99
E-Mail: info@chainmaster.de
Bhnentechnik GmbH
Kettenzug_MB-SB_DE_2008-09-30.doc
Jrg Manthei
Kettenzug_MB_SB_DE_2008_12_18.doc Katja Strber
Chainhoist_MB_SB_EN_2010-01Jrg Manthei
05_EN.doc
Chainhoist_MB_SB_EN_2010-06Jrg Manthei
15_EN.doc
Adjustment of layout, technical
Revision according to directive
Revision page 10 (national
standards), 11 (environment
Chainhoist_MB_SB_EN_2011-0413_EN.doc
Chainhoist_MB_SB_EN_2012-0220_EN.doc
Update of regulations and standards,
tables of lubricants, revision
Table 1 plastics chain bags .................................................................................................................................................. 27
Table 2 connection screws with torques for hook tackles..................................................................................................... 29
Table 3 connection screws with torques for hook blocks...................................................................................................... 30
Table 4 pre-fuse ................................................................................................................................................................... 32
Table 5 test and maintenance works .................................................................................................................................... 39
Table 6 air gap of the brakes ................................................................................................................................................ 42
Table 7 measurement of chain dimensions .......................................................................................................................... 47
Table 8 duty rate for short time duty ..................................................................................................................................... 48
Table 9 duty rate for intermittent duty ................................................................................................................................... 48
Table 10 alternative oils........................................................................................................................................................ 49
Table 11 amount of oil .......................................................................................................................................................... 49
Table 12 grease type............................................................................................................................................................ 49
Table 13 lubricant types fort he load chain ........................................................................................................................... 50
Chainhoist_MB_SB_EN_2012-02-20_EN.doc
Revision start:
Revision end:
1. Foreword .................................................................................................................................. 5
1.1. Liability............................................................................................................................................5
1.2. Warranty..........................................................................................................................................5
1.3. Copyright ........................................................................................................................................6
1.4. Important terms in the operating instruction ...............................................................................7
1.4.1. Expert ............................................................................................................................................7
1.4.2. Competent person .........................................................................................................................7
1.4.3. Electrical equipment authorized personnel....................................................................................7
1.4.4. Operating personnel ......................................................................................................................7
1.5. General symbols in the operating instruction .............................................................................8
1.6. Symbols for the distinction of hoisting machines.......................................................................9
1.7. Regulations and standards ...........................................................................................................9
2. Safety advice and information ............................................................................................. 11
2.1. Safety advice for chain hoists and controls ..............................................................................11
2.1.1. Environment conditions ...............................................................................................................11
2.1.2. Intended usage............................................................................................................................12
2.1.3. Incorrect usage............................................................................................................................13
2.1.4. Advice regarding the secure usage of electric energy ................................................................14
2.1.5. Safety devices .............................................................................................................................14
2.1.6. Changes to the delivery status ....................................................................................................14
2.1.7. Accessories and spare parts .......................................................................................................14
2.1.8. Briefing ........................................................................................................................................15
2.1.9. Operating instruction ...................................................................................................................15
2.1.10. Storage and transport................................................................................................................15
2.2. Selection advice for the control of electric chain hoists according to C1 ..............................16
3. Advice regarding compulsory tests.................................................................................... 17
3.1. Tests on electrical equipment .....................................................................................................17
3.2. Tests on electric chain hoists .....................................................................................................17
3.2.1. Tests when used according to BGV D6.......................................................................................17
3.2.2. Tests when used according to BGV D8.......................................................................................17
3.2.3. Tests when used according to VPLT SR2.0 (D8 Plus) ................................................................17
3.2.4. Tests when used according to BGV C1.......................................................................................17
3.3. Test periods ..................................................................................................................................18
3.4. Documentation of the test ...........................................................................................................18
4. Technical overview ............................................................................................................... 19
4.1. Assembly possibilities.................................................................................................................19
4.2. Schematic sketch of the load chain configuration ....................................................................20
4.3. Explanation of type designation .................................................................................................20
4.4. Sectional view...............................................................................................................................21
5. Assembly instruction............................................................................................................ 22
5.1. Mechanical assembly...................................................................................................................22
5.1.1. Suspension of the electric chain hoist .........................................................................................22
5.1.1.1. Suspension with double hole suspension eye ..........................................................................22
5.1.1.2. Suspension with single hole suspension eye ...........................................................................22
5.1.1.3. Suspension with hook suspension............................................................................................23
5.1.2. Fitting and replacing load chain ...................................................................................................24
5.1.2.1. Replacing of chain guide and hold down ..................................................................................25
5.1.2.2. Fitting for single fall version delivery without preassembled piece of load chain ...................25
5.1.2.3. Fitting for single fall version delivery with preassembled piece of load chain ........................26
5.1.2.4. Fitting for double fall version.....................................................................................................26
5.1.3. Chain bag ....................................................................................................................................27
5.1.3.1. Assembly of the chain bag .......................................................................................................27
5.1.3.2. Oversize chain bags .................................................................................................................28
5.1.4. Hook tackle..................................................................................................................................29
5.1.5. Hook block...................................................................................................................................30
5.1.6. Gear ventilation for stationary chain hoists..................................................................................31
5.1.7. Electric chain hoists for inverted use ...........................................................................................31
5.2. Electric equipment and connection ............................................................................................32
5.2.1. Voltages ......................................................................................................................................32
5.2.2. Mains connection.........................................................................................................................32
5.2.3. Direct control ...............................................................................................................................33
5.2.4. Low voltage control (contactor control)........................................................................................33
5.2.5. Electric limit switch for lift limitation..............................................................................................34
5.2.6. Control cable with control pendant ..............................................................................................34
5.2.7. Electronic lifting power limitation .................................................................................................35
6. Directions and prohibitions for use .................................................................................... 36
6.1.1. Requirements for the operating personnel ..................................................................................36
6.1.2. Dangers for people and environment ..........................................................................................36
6.1.3. Precautions and codes of practice...............................................................................................36
6.1.4. Performance of motional processes ............................................................................................37
6.1.5. Behaviour in case of a failure ......................................................................................................37
6.1.6. Behaviour in case of an accident.................................................................................................38
6.1.7. Maintenance and repairs .............................................................................................................38
6.1.8. Test .............................................................................................................................................38
7. Maintenance........................................................................................................................... 39
7.1. Performance of test and maintenance works ............................................................................39
7.2. Testing of wear .............................................................................................................................40
7.3. Maintenance and adjustment of the DC disc brake...................................................................40
7.3.1. Electric control of brakes mode of operation ..........................................................................40
7.3.2. Configuration of the single brake .................................................................................................40
7.3.3. Adjustment of the air gap of the single brake ..............................................................................41
7.3.4. Configuration of the double brake................................................................................................41
7.3.4.1. Operational brake configuration and function .....................................................................42
7.3.4.2. Safety brake configuration and function .............................................................................42
7.3.5. Adjustment of the air gap of the operational and safety brake.....................................................42
7.3.5.1. Adjustment of the air gap of the operational brake ...................................................................43
7.3.5.2. Adjustment of the air gap of the safety brake ...........................................................................43
7.3.6. Checking brake function ..............................................................................................................43
7.3.7. Individual test of operational and safety brake ............................................................................43
7.3.8. Replacement of brake lining ........................................................................................................44
7.4. Sliding clutch ................................................................................................................................44
7.4.1. Mode of operation of sliding clutch ..............................................................................................44
7.4.2. Adjusting the clutch .....................................................................................................................45
7.4.3. Mode of operation of the slide clutch for the slow speed motor of version 9.1 ............................45
7.4.4. Adjusting the clutch on the slow speed motor of the version 9.1 .................................................46
7.4.5. Test of sliding clutch ....................................................................................................................46
7.5. Chain guide plate..........................................................................................................................46
7.6. Load chain ....................................................................................................................................46
7.6.1. Lubrication of the load chain before commissioning and during operation ..................................46
7.6.2. Testing of wear and measuring wear of the load chain ...............................................................46
7.7. Measuring wear and replacing the load hook............................................................................47
8. Duty rate of an electric chain hoist ..................................................................................... 48
8.1. Short time duty .............................................................................................................................48
8.2. Intermittent duty ...........................................................................................................................48
8.3. Example for the determination of the duty rate .........................................................................49
9. Lubrication............................................................................................................................. 49
9.1. Gear lubrication ............................................................................................................................49
9.2. Lubrication of the hook block and the hook tackle ...................................................................49
9.3. Lubricants for the load chain ......................................................................................................50
10. Determination of the S.W.P. ............................................................................................... 50
10.1. Measures to be taken at the end of the S.W.P. ........................................................................50
11. Disposal ............................................................................................................................... 50
A.1. Checklist for tests ............................................................................................................. 51
Thank you for purchasing our ChainMaster-product.
ChainMaster-products are designed for the extreme usage in stage technology
and stood the test in many occasions.
Our operating instruction explains the proper work with the different
ChainMaster-products and the maintenance. Please observe especially the
You must read and understand the operating instruction before starting the
transport, assembly, start-up or maintenance of the product. Please observe the
completeness of the operating instruction according to the table of contents.
1.2. Warranty
These operating instructions were developed with the greatest care possible.
The information, dates, remarks and instructions contained herein comply with
the printing date. But these operating instructions can slightly differ from the
performance dates or other characteristics of the products due to the continuous
The operating instructions are subject to alterations and additions, which will be
implemented without previous announcement, especially if the manual contains
technical mistakes or misspellings.
This operating instruction does not contain a declaration which represents a
guarantee in the sense of 443 BGB and no information regarding the expected
usage according to the contract in the sense of 434 para. 1 clause 1 No. 1
Claims for alterations of products, which are already delivered, cant be lodged
neither from the descriptions or other information contained in these operating
instructions nor from the illustrations.
Our warranty and liability for defects on the delivered product including these
operating instructions complies only with the regulations of the purchase
contract under exclusion of further claims.
We assume the warranty for the operating instruction being developed in
accordance with the general technical and functional parameters of the
delivered technical product.
We dont assume any warranty for defects and damages, which are caused due
to operating errors, nonobservance of the operating instruction including
maintenance not performed according to this manual.
A warranty or liability claim for damages to people and property is excluded
especially if they can be put down to one or various of the following reasons:
Improper usage,
Incorrect transport, incorrect assembly,
Operation of the technical product with defective safety equipment or with
improperly installed or inoperable safety and protection devices,
Nonobservance of advice in the operating instruction regarding transport,
storage, assembly, start-up, operation, disassembly, maintenance and
repairs of the machine,
Arbitrary constructual modifications at the machine
Arbitrary modification of the parameters mentioned in the operating
Insufficient inspection of machine parts which are subject to wear and tear,
Removal of facility parts respectively installation of spare parts or additional
devices which are not delivered or allowed by ChainMaster,
Arbitrary executed adjustments on safety equipment,
Exceedance of the prescribed inspection periods according to the accident
Improperly executed repairs,
Events of disaster caused by foreign bodies or by force majeure.
Wear and tear elements are not subject to the warranty.
This operating instruction is protected by copyright. They are exclusively
intended for the operators of the product, its personnel and for other people
employed by the operator for maintenance purposes. A transfer to third parties
Duplication, distribution and other utilization, also in extracts, is not permitted
without consent of ChainMaster.
Non-compliance can have consequences by penal and civil law.
1.4. Important terms in the operating instruction
The following definitions comply with the text of the definitions by the
government safety organisations.
An expert is a person with special knowledge in the field of safety-related and
machine-related facilities due to a professional education and experience and
who is familiar with the relevant federal health and safety regulations, with the
regulations by the government safety organisations and with the generally
acknowledged rules of technology (e.g. DIN standards, VDE-provisions
(Association of German Electricians), technical regulations of other member
states of the European Union or other contractual states of the Agreement on
the European Economic Area). The person must be able to check and evaluate
the occupational safety status of safety-related and machine-related facilities
and produce an assessment thereof.
1.4.3. Electrical equipment
An electrical equipment authorized personnel in the sense of the accident
prevention regulation is a person, who can evaluate the assigned tasks and can
recognise possible dangers due to a professional education, knowledge and
experiences and knowledge of the relevant regulations.
A member of the operating personnel is a person, who was briefed by the
employer according to point 2.1.8 on the work with the technical device, whose
operation is described in this operating instruction.
1.4.4. Operating personnel
A competent person is a person with sufficient knowledge in the field of safetyrelated and machine-related facilities due to a professional education and
experience and who is familiar with the relevant federal health and safety
regulations, with the regulations by the government safety organisations and
with the generally acknowledged regulations of technics (e.g. DIN standards,
VDE-provisions (Association of German Electricians), technical regulations of
other member states of the European Union or other contractual states of the
Agreement on the European Economic Area) so that the person is able to
evaluate the occupational safety status of safety-related and machine-related
1.4.2. Competent person
1.4.1. Expert
1.5. General symbols in the operating instruction
In this operating instruction we warn against possible damages to people or property and give advice regarding the
operation. Universally valid national regulations regarding health and labour protection must also be observed. For
simplifying orientation the corresponding chapters are marked with the following symbols:
(W00) Warning against danger
This symbol marks operating sequences or steps which can cause serious
personal injuries if the operating instruction is not observed. This symbol also
marks chapters in the operating instruction which can cause damages to the
equipment when not observed.
(W06) Warning against dangers due to floating loads
This symbol marks chapters in the operating instruction which warn against
dangers due to floating loads or due to the general usage of hoisting machines.
Nonobservance can cause serious personal injuries or death.
(W08) Warning against dangerous voltage
Touching live parts can cause serious injuries or death. Only electrical
equipment authorized personnel is allowed to remove parts of the housing
(cover of electric devices).
(W23) Warning against risk of crushing
possible dangers due to crushing or trapping of body parts. Nonobservance can
cause serious injuries.
(E03) First aid
This symbol marks chapters in the operating instruction which give advice
regarding the behaviour in cases of accidents. Nonobservance can cause the
development of further dangerous situations.
(M02) Use hard hat
dangers of head injuries. Nonobservance can cause serious head injuries.
(M05) Use protection shoes
This symbol marks chapters in the operating instruction which warn against the
danger of foot injuries.
(M13) Remove power plug before opening
This symbol marks chapters in the operating instruction which require the
removal of an electric device from the power network before performing the
instructions in this chapter to avoid accidents due to dangerous voltage.
(M14) Disconnect before starting to work
This symbol also marks chapters in the operating instruction which require the
instructions in this chapter to avoid accidents due to dangerous voltage
Special advice and hints regarding the handling and operation or fault clearance
are marked with this symbol.
1.6. Symbols for the distinction of hoisting machines
Hoisting machines according to D8
This symbol is used for marking hoisting machines which comply with the
requirements of BGV D8. These types of hoisting machines must not be used
for moving loads above people. A secondary safety component is required if
hoisting machines according to D8 are used for holding loads above people
and the hoisting machine must be completely unloaded.
Hoisting machines according to D8 Plus
This symbol is used for marking hoisting machines the specification of which
complies with the requirements of D8 Plus according to VPLT SR 2.0. These
types of hoisting machines must not be used for moving loads above people.
Loads above people can be hold with this hoisting machine without additional
Hoisting machines according to C1
requirements of BGV C1. These types of hoisting machines can be used both
for holding and moving loads above people. The control of the hoisting
machines must also comply with the requirements.
Chapters in this operating instruction, which only apply for certain hoisting
machines, are also marked with these symbols
1.7. Regulations and standards
When working with the electric chain hoists and their controls various
regulations and standards in their valid versions have to be observed in addition
to the remarks in this operating instruction. Some of the applied regulations and
standards are listed below. This list does not make a claim to be complete. The
corresponding national regulations have to be observed in other countries.
EC-Directive relating to electromagnetic compatibility
German regulation regarding safety and health protection for the provision of
work equipment and their usage, regarding safety when operating facilities
which require supervision and regarding the set-up of operational work
BGV accident prevention regulations
Staging and Production Facilities for the Entertainment
Winches, Lifting and Hoisting Devices
Rules for Testing Cranes
BGG 912
Rules for Testing Safety and Mechanical Equipment in Staging and Production
Facilities for the Entertainment Industry
BGG 956
Logbook for winches, lifting and hoisting devices
BGG 956-1
Remarks for the inspection of winches, lifting and hoisting devices
BGR 500 Chapt. 2.8
Load carrying devices in hoisting machine operations
Safety of machinery; - General principles for design Risk assessment and risk
Safety-related parts of control systems -- Part 1: General principles for design
Safety of machinery -- Safety-related parts of control systems -- Part 2:
Short link chain for lifting purposes. Safety. Fine tolerance hoist chain, Grade T
Cranes - Power driven winches and hoists - Part 2: Power driven hoists.
Rotating electrical machines. Part 1 - Rating and performance
Rotating electrical machines. Degrees of protection provided by the integral
Rotating electrical machines Part 12: Starting performance of single-speed
three-phase cage induction motors
Safety of machinery. Electrical equipment of machines. Part 32: Requirements
for hoisting machines
Specification for low-voltage switchgear and control gear. Part 1: General rules
Low-voltage switchgear and control gear - Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
Low-voltage switchgear and control gear - Part 4-1: Contactors and motorstarters - Electromechanical contactors and motor-starters
Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity
Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission
standard for industrial environments
Adjustable speed electrical power drive systems - Part 5-1: Safety requirements
- Electrical, thermal and energy
EN 60034-12
National standards and other technical specifications
Round steel link chains; utilization
DIN 15405-1
Lifting hooks; inspection of forged hooks in service
Entertainment technology - Machinery installations - Safety requirements and
Inspection after repair, modification of electrical appliances - Periodic inspection
on electrical appliances - General requirements for electrical safety
Rules for the design of series lifting equipment: Classification of mechanisms
Series lifting equipment; Selection of hoisting and travelling motors
Series lifting equipment; Power driven series hoist mechanisms; Safety
Series hoist units; Measures for achieving safe working periods
IGVW codes of Practice for Event Technology Electric Chain Hoists
(Replacement for VPLT SR2.0)
2. Safety advice and information
Electric chain hoists and controls can be stored within a temperature range of -20C
and +60C and can be operated with the mentioned duty rate within an
environmental temperature between -20C and +40C. The motors are
manufactured according to the requirement of Insulation Class F.
For use in higher environmental temperature the duty rate has to be reduced
The maximum air humidity is 50%, non-condensing.
Cranes in outdoor use require a roof for the park position.
2.1.1. Environment conditions
2.1. Safety advice for chain hoists and controls
Nonobservance of the operation and storage temperature can affect material
An authorisation by ChainMaster is required before operating the hoists and their
controls in an aggressive atmosphere or outside the temperature ranges mentioned
above. It may be necessary to use parts made of different material.
characteristics of individual equipment parts adversely and malfunctions and
damages can occur.
Connect the equipment only to a TN three-phase power system with the voltage
and frequency mentioned on the type plate.
A neutral conductor is usually mandatory for the electrical connection of electric
chain hoists and controls.
Details can be found in the wiring diagram!
A clockwise rotating field is necessary for the connection of the equipment to the
The voltage deviation at the power supply connection must not exceed +/- 5%.
Parts of this equipment can contain frequency-regulated parts. If this equipment is
operated via residual-current-operated protective devices (RCD) only AC/DC
sensitive residual-current-operated protective devices
(Type B) must be used to avoid a disturbance of the protection
measurements and to guarantee the protection for indirect contact.
No pulsed current sensitive protective devices must be connected ahead of electric
circuits with AC/DC sensitive residual-current-operated protective devices.
power supply must comply with the requirements of EN 60204-32 para.4.3.
facilities, which are operated adjacently must comply with the requirements
of EN 61000-6-2 regarding interference resistance and with EN 61000-6-4 regarding
transient emission (Electromagnetic compatibility).
Electric chain hoists are intended for lifting and lowering loads vertically and to
travel horizontally with those lifted loads with trolleys.
Every other mode of use can cause severe damage and is prohibited and the
risk is on the operators responsibility.
Please observe e.g. the following points when using the chain hoists in the
intended way:
dont exceed the permitted deflexion angle for wire and chain direction
consider the resulting forces,
dont change counterweights in a way that parts of the system are
avoid damages on wires and chains.
2.1.2. Intended usage
ChainMaster chain hoists according to D8, D8 Plus and C1 are used for moving
and holding loads in the event technology. Another usage has to be cleared with
ChainMaster in advance.
A previous consultation with ChainMaster is required if the electric chain hoist
should be used for the transport of molten material or similar dangerous goods.
Electric chain hoists and controls can only be operated if the assembly and
installation had been carried out as prescribed and if all parts are functional and
free of visible damages.
A test according to point 3.2 has to be carried out before the first start-up.
Chain hoists must not be loaded beyond the permitted bearing load. (Details
regarding the safe working load can be found on the type plate and on the load
hook.)
The selection and dimensioning of all bearing elements in the power flow (like
e.g. suspension points and slings) has to be carried out by the operator under
consideration of the resulting loads and risks.
The prescribed rotational maintenance has to be carried out on a regular basis
and the required tests has to be performed within the prescribe period of time
during the complete use period of the chain hoists and controls.
To ensure a safe working process the health and safety regulations, especially
the regulations by the accident insurance company and the generally
acknowledged rules of technology in their current valid version have to be
All works which are performed in connection with the technical product
mentioned in this manual have to consider the remarks, instruction and
prohibitions herein.
If this device is used in connection with other technical products the manuals of
the manufacturers of the other technical products have to be observed as well.
Other requirements, which occur from further statutory provisions on the usage
side, have to be observed as well. The advices in this operating instruction
The facility has to be shut down immediately if a deficiency occurs on the
technical product which could cause inevitable risks for the involved people.
Further operation has to be prohibited until the deficiency is fixed.
The correct remediation of the deficiency and the correct function has to be
checked by a person mentioned in point 1.4.1 1.4.3 before a new start-up.
Another usage than the one intended by ChainMaster has to be cleared
with ChainMaster generally in advance.
The following usage and operation prohibitions apply for chain hoists by
ChainMaster:
Transport of people (unless the hoist is especially constructed for this case)
Pulling loads which are tilted or dragging loads, tearing off loads
Moving of loads without intervisibility
Moving of loads above people with chain hoists according to BGV D8 und D8
Holding loads above people with chain hoists according to BGV D8 without
secondary safety component
Excess of the permitted safe working load capacity according to the
information on the load hook and type plate
Usage of safety switches and comparable devices for the regular operation
Exceptions for BGV C1 chain hoists according to 26 para. 6 of BGV
If an operational limit switch fails during a performance or production, the
machinery may continue to be operated, with special care, until the end of
said performance or production, on the basis of the operators view or
instructions given by another person.
Use of the sliding clutch as a limiter during normal operation
improperly installed or inoperable safety and protection devices
Use of hoists with worn rubber elements or without rubber buffer on hook
tackle, hook block or lift limiter
Operation with twisted chain, caused by throwing the hook block through the
two vertical chains or wrong mounted fix chain end on casing
Using a lifting chain, which is longer than the chain bag capacity stated
under the chain bag (see marking on chain bag)
Manipulation on devices for lifting power limitation or on other safety devices
Operation with missing or illegible warnings and security advices on the
Moving trolley by pulling control pendant or control cable, even if these are
relieved of strain
Using the hoist with higher duty rate as marked on the specification plate
Carrying out repairs without special knowledge
Unattended operation of the facility
Operation by unauthorised people
Starting initial operation before an expert or a trained specialist has
inspected the equipment
Using the hoist without having done the regular inspection
Operation after the S.W.P. is exceeded
2.1.3. Incorrect usage
The electric chain hoists and the appropriate controls work with electric energy.
Before first usage please make sure, that all electrical wires are connected
safely, that all wires are without damages and that the whole equipment
could be switched off by a main switch.
In case of a failure, the whole facility has to be shut off by using the
EMERGENCY-STOP button or by switching off the main switch.
A sufficient wire cross section has to be observed which is adapted to the
length of the cable and the current load rating when using extension cables.
You have to choose a wire type, which suits the particular purpose in each
The cables have to be laid in a way that they are protected against damages
and tensile load.
Couplers must not be connected or disconnected in live status.
Exceptions are CEE-couplers up to a nominal current of 63 A, which
generally have a sufficient switching capacity according to EN 60309-1.
Only couplers may be used which are suitable for the occurring demands.
2.1.5. Safety devices
Changes regarding the adjustment of safety devices may only be performed by
experts according to section 1.4.1 and 1.4.2 on operators responsibility, if these
changes are necessary due to usage and if appropriate adjustment possibilities
are exists.
The safe operation of chain hoists and controls may not be influenced by
changes on the adjustments of the safety devices.
2.1.4. Advice regarding the
secure usage of electric
Changes on the safety devices for increasing the load capacity are not
The adjustment of the EMERGENCY- and operational limit switches have to be
adapted to the actual lifting area on the usage site.
Changes on the chain hoists and controls to the delivery status may only be
executed after consultation with the manufacturer and under usage of original
parts purchased from the manufacturer.
Exceptions are adjustments on safety devices according to point 2.1.5, if these
are necessary due to usage.
2.1.6. Changes to the delivery
2.1.7. Accessories and spare
Increasing the load capacity by simply changing the adjustments of the lifting
force limiter is not allowed.
All changes may only be performed by competend persons and have to be
documented in the logbook.
Accessories used for operating chain hoists and controls must comply with the
effective technical standards.
Only original accessories and spare parts according to the spare part list and
other specifications by the manufacturer have to be used for the installation in
chain hoists and controls or for the direct mounting on chain hoists.
The manufacturer cannot be held responsible for failures and breakdowns
caused by use of not original or wrong spare parts.
2.1.8. Briefing
The employer has to make sure that all people involved in the independent
operation and maintenance of hoists or technical devices are briefed before
starting their work so that they are able to reliably fulfil their tasks.
2.1.9. Operating instruction
The employer has to make sure that this operating instruction is available in a
legible and complete version at every usage site of the device described in the
instruction and that the operating personnel has read this operating instruction
thoroughly before starting to work.
The electric chain hoists and controls have to be handled carefully during
storage and transport. They must not be tossed and bumped.
Electric chain hoists and controls for a mobile usage should be stored and
transported in containers especially constructed for this kind of usage.
2.1.10. Storage and transport
When using technical devices in the sense of BGV C1 for dangerous scenic
processes which require certain behaviour, the briefing has to be repeated in
appropriate intervals. The demand for a repetition of the briefing can include a
briefing before every rehearsal or show.
The required minimum configuration for controls for C1 electric chain hoists has to be
chosen depending on the type of usage.
The following table was published by the government safety organisation and should
assist with the decision making.
2.2. Selection advice for the control of electric chain hoists according to
1 Single load
2 Load with two hoists
Load with more than
3 two hoists
Bending moment free
Surface load with
5 three hoists
G+Z1
G+Z3
6 more than three
Minimum configuration for
G+Z1+Z4
7 Guided loads
G Basic configuration
Z Additional configuration
Z1 Asynchronous run with group switching off
Z2 Reset via synchrony point
Z3 Synchronous group run (way- and time synchrony) or synchronisation
Z4 Underload switch-off (slack-chain-protection)
G+Z1+Z2+Z4
G+Z1+Z2
G+Z3+Z4
3. Advice regarding compulsory tests 1
3.1. Tests on electrical equipment
The employer has to make sure that the electronic facilities and devices are
tested for their correct working order:
1. before the first start-up or after an modification or maintenance before a new
start-up by an electrical equipment authorized personnel or under the
direction of an electrical equipment authorized personnel or under survey of
2. In certain intervals.
The applied electrical regulations, especially DIN EN 60204-32 and DIN VDE
0701-0702, have to be observed during the test performance.
3.2. Tests on electric chain hoists
3.2.1. Tests when used
according to BGV D6
The demand for a test complies with BGV D6 25. This regulation indicates that
cranes have to be tested before the first start-up, after extensive modifications
and annually by an expert. The annual test can also by performed by a
competent person. Details about the test and a checklist can be found in BGG
The demand for a test complies with BGV D8 23. This regulation indicates that
electrical chain hoists have to be tested before the first start-up, after extensive
modifications and annually by a competent person. Details about the test and a
checklist can be found in BGG 956 respectively BGG 956-1.
3.2.2. Tests when used
according to BGV D8
Electric chain hoists have to be tested before the first usage and afterwards in
regular intervals. The demands on the test comply with the type of usage. The
usage of electric chain hoists is possible according to:
VPLT SR2.0 Provision and Use of Electric Chain Hoists
The demand for a test also complies with BGV D8 23. This regulation indicates
that electrical chain hoists have to be tested before the first start-up, after
extensive modifications and annually by a competent person. Details about the
test and a checklist can be found in BGG 956 respectively BGG 956-1.
3.2.4. Tests when used
The demand for a test complies with BGV C1 33. This regulation indicates that
safety-related and machine-related devices have to be tested before the first
start-up and after extensive modifications by an expert. Regular tests have to be
performed annually according to BGV C1 34 by a competent person and every
4 years by an expert. Details about the test and a checklist can be found in
BGG 912.
3.2.3. Tests when used
according to VPLT SR2.0
(D8 Plus)
A checklist for the tests can be found at the end of the operating instruction.
3.3. Test periods
Regulations regarding the test periods are provided by the accident prevention
regulation of the insurers.
The test intervals are determined in a way that occurring defects, which have to
be expected, can be detected in due time.
The maintenance advices in the operating instruction must also be observed to
keep the frequency of occurrence of defects, which can affect the operating
safety, as low as possible.
3.4. Documentation of the test
The employer has to make sure that a confirmation of the test results for the
devices is documented.
The test results must be recorded in a logbook. A certificate about the last test
has to be provided at every usage site of the device.
The simple building block system makes it easy to convert the electric chain hoists. The usage is stationary, manual
or electric travelling trolleys can be provided, and the installation of greater hoisting and operating heights is also
Most models allow the choice of single or double fall versions. For a limitation of the double fall version please
observe also the advices in section 5.1.2.4.
For the mobile usage, there is a higher risk of a twisted chain or that the chain can be twisted by throwing the hook
block throught the two vertical chains. Thats the reason why chain hoists shouldnt be used for the mobile usage in
the double fall version.
specially shaped shackle
hook tackle with
with elastic washers
(limit stop)
4.1. Assembly possibilities
Picture 1 assembly possibilities
4.2. Schematic sketch of the load chain configuration
Picture 2 single fall version
Use manufacturers original chains only, as these meet the high stress and service life standards
required and the requirements on dimensional accuracy.
Picture 3 double fall version
4.3. Explanation of type designation
Type 3200 / 2 - 3 / 0,75
slow lifting speed (m/min)
main lifting speed (m/min)
The technical dates can be found on the type plate of the electric chain hoist and in the corresponding Logbook for
Magnet for DC brake
Motor pinion shaft
Terminal strip for mains cable
Pinion shaft V
Hook block complete
Picture 4 sectional view
4.4. Sectional view
5. Assembly instruction
Assembly work should only be carried out by competent persons in accordance with BGV D8 sect. 24. Observe the
remarks in the operating manual for a smooth assembly process.
5.1.1. Suspension of the electric chain hoist
5.1. Mechanical assembly
There are several suspension eyes available for the assembly of electric chain hoists on trolleys or stationary
suspension points. A hook suspension is also possible for special usage purposes.
5.1.1.1. Suspension with double hole suspension eye
The double hole suspension eye is exclusively used for the assembly of electric chain hoists on a double bolt trolley.
If an electric chain hoist should be mounted on a single bolt trolley a single hole suspension eye should be used.
Assembly: The delivered double hole suspension eye must be inserted into the specially provided
suspension holes on the electric chain hoist and pinned into place with the two bolts.
Use washers with the lock bolts and secure position with eyebolts.
The marking arrow on the suspension eye must be on the same side as the chain bag of
Picture 5 suspension with double hole suspension eye
5.1.1.2. Suspension with single hole suspension eye
The delivered single hole suspension eye must be inserted into the specially provided
Use washers with the lock bolts and secure position with eyebolts. The holes to be used
differ in the single and double fall version and are marked with symbols on the eye.
The marking arrow on the hook suspension must be on the same side as the chain bag
symbols for double and single fall version
Picture 6 suspension with single hole suspension eye
5.1.1.3. Suspension with hook suspension
The hook suspension must be inserted into the specially provided suspension holes on
the electric chain hoist and pinned into place with the two bolts. Use washers with the
lock bolts and secure position with eyebolts.
The indicating arrow of the hook suspension must be on the side of the chain bag of the
The holes to be used for a hook suspension for chain 722, 1131 and 11.331differ in
the single and double fall version and are marked with symbols on the hook suspension.
of single fall version
of double fall version
for chain 412
for chain 515
for chain 927
Picture 7 hook suspension for chain 412, 515 and 927
Converting: The traverses of the hook suspensions for chain 4x12, 5x15 und 9x27 have two holes
for the reception of the hook. The hook is factory-set in one of the two holes depending
on the configuration (single or double fall). Afterwards the security pin of the hook nut
cant be removed without any damages. Therefore a subsequent change between the
single and double fall version is not possible.
symbol hook tackle
load centre of
single fall version
double fall version
for chain 722
for chain 1131 and 11.331
Picture 8 hook suspension for chain 7x22, 11x31 and 11.3x31
Converting: It has to be observed during changing of number of falls or the assembly of the chain
hoist, that the marking arrow of the hook suspension is situated on the same side as the
chain bag of the hoist (see Picture 8). A change from single fall to double fall version
can be done by putting the two bolts into the relevant holes at the hoist casing. The
relevant holes are marked with a symbol for double fall and another symbol for single
fall on the hook suspension block. The bolts have to be secured with washers and
5.1.2. Fitting and replacing load chain
Before fitting the load chain the chain hoist must be connected to the power supply und must be ready for operation.
The connection to the power supply is described in section 5.2 on page 32.
For the conversion a hook suspension in the corresponding version (single or double
fall) is necessary. The two versions of hook suspensions for single or double fall
operation are marked with the appropriate symbols (hook tackle or hook block) for a
single or double fall operation.
For changing the hook suspension of version 1-1.3 for the double fall version the
traverse of the suspension has to be turned additionally by 180 degrees (see Picture
7left side). The marking arrows of the respective symbol for hook tackle or hook block
must be at the same side as the chain bag of the hoist.
Before replacing the load chain the lift limiters must be removed. When equipping the
chain hoist with electrical limit switches for lifting range limitation, their adjustments
must be changed. The operation of the lift limiter and the electrical limit switches must
be tested after fitting or replacing of the load chain.
In the case of models 6.1 and 8.1 the clutch must be relieved of stress by loosening the
pressure nut (see part no. 2 in Picture 4respectively part no. 9 in Picture 42) before
carrying out this work. The clutch must be adjusted again as described in chapter 7.4
after assembling of the load chain.
For version 9.1 only the clutch of the slow speed motor must be relieved of stress (part
no. 7 in Picture 44). The chain has to be assembled by using the slow speed only.
The chain guide and the hold down have to be changed when replacing the load chain
due to reaching the wear boundary or due to damages (see section 7.6.2).
The chain guide and hold down can be replaced after removing the whole chain from
the chain hoist. The hook tackle or the lift limiter has to be removed first.
If the chain hoist is equipped with electrical limit switches their adjustments have to be
changed, if necessary.
Different combinations of hold downs / chain guides are used. Hold downs can only be
installed in combination with the appropriate chain guides. In case of doubt the serial
number of the electric chain hoist has to be mentioned when purchasing spare parts.
1. Loosen four screws (1).
2. Remove chain guide (2).
3. Press hold down (3) in direction of dead end of the chain, using
the screwdriver (arrow in Picture 9).
4. When inserting the new hold down (3), take care that the
chamfered end shows in the direction of the chain bag.
5. Push in the chain guide and screw tight.
6. Fit the load chain like described in point 5.1.2.2.
Picture 9 replacing the chain guide and the hold downs
5.1.2.2. Fitting for single fall version delivery without preassembled piece of load chain
Push the pull-in wire (special tool) into and through the chain guide cross plate shown in Picture 10 until the
wire hook is pushed out on the opposite side.
Starting with the flat chain link, hang chain end with wire hook into the chain pocket.
Allow chain to be fed in using inching control on push button (Picture 11).
Attach rubber block onto chain end and assemble load hook (Picture 12). Please consider the torques in table
Table 2 on page 29.
Lower load hook to the lowest position.
Press the rubber buffer for lift limiter*, included in delivery, onto the dead end of the chain.
If the rubber block of the lift limiter has a vulcanised steel disc, this disc has to show in the direction of the
electric chain hoist casing during installation.
Fix lift limiter* approx. 50 cm before the chain end (Picture 13). Fix the lift limiter for oversize chain bags in a
way that the distance of the lift limiter to the chain end equals the height of the chain bag.
Mount chain bag as described in 5.1.3. The dead end of the chain will be fixed on the chain bag so the chain
cant fall out.
Lubricate chain well and let it run into the chain bag.
5.1.2.1. Replacing of chain guide and hold down
Let the dead end of chain run into the chain bag by pressing the up button on the
control and using the hoist motor to prevent knots inside the chain bag. Allow filling of
the chain bag only by running the chain through the hoist by using the motor. To
prevent knots inside the chain bag do not put the chain in the box manually
* Lift limiter
The lift limiter is designed to prevent the dead end of chain running out of the hoist. It is
used as an emergency stop and cannot be used regularly as a lower limit switch.
Picture 11 (step 3)
Picture 12 (step 4)
Fitting the load chain in single fall version
Picture 10 (step 1)
Picture 13 (step 7)
5.1.2.3. Fitting for single fall version delivery with preassembled piece of load chain
A short piece of chain is already fitted in these models so the fitting of the chain into the chain hoist is not necessary.
The assembly is carried out according to the following steps:
Always hang the connecting piece, included in the delivery, into the inserted chain on the chain bag side and
then attach the load chain to be drawn in.
Continue as described in 5.1.2.2 under point 3.
When changing the load chain and converting to other numbers of falls, never allow the
chain to come out of the casing completely, always pull in new chain or a short piece of
chain with the connecting piece. (pay attention to point 5.1.2). After having mounted the
new load chain remove the short piece of chain and connecting piece.
5.1.2.4. Fitting for double fall version
Chain hoists with limit switches for the upper end position mounted outside the chain
hoist cant be converted into the double fall version.
First insert the load chain into the chain hoist casing as described in point 5.1.2.2 or point 5.1.2.3. Make sure
that the first chain piece lies flat on the chain wheel.
Pull the chain through the hook block using the pull-in wire (special tool) (Picture 15).
Never allow the chain to be twisted between the chain outlet and the hook block!
If an assembly with an untwisted chain according to Picture 16 or Picture 17 is not
possible one chain link has to be cut and removed to allow correct assembly. Do not turn
or swivel the hook block around the horizontal axis between the two chain falls.
Release the 4 screws of the chain guide (see Picture 9) and lower the chain guide (Picture 16).
The chain end which has been pulled out of the hook block must be laid flat into the chain hoist casing pocket
as shown in Picture 3 or Picture 17.
Fix chain guide onto casing again (Picture 19).
Check again that chain is not twisted. (Picture 20)
Lubricate the chain well over the full length.
The following models cant be converted into the double fall version:
MB1.1/23B 320/1-4
MB1.1/22B 320 1-6
SB1.1/13B 160/1-4
SB1.1/14B 160/1-6
For material strength reasons the casing pocket for fitting in the chain end piece had been
removed (see Picture 3) for these models.
Picture 16 (step 3)
Picture 17 (step 4)
Fitting the load chain in double fall version
5.1.3. Chain bag
5.1.3.1. Assembly of the chain bag
The following chain bags are made from plastics (see picture21):
max filling quantity
Picture 19 (step 5)
Picture 20 (step 6)
type of chain bag
5/10 7/8
Picture 15 (step 2)
Table 1 plastics chain bags
Chain bags with bigger capacity as shown in the Table 1 are made from canvas material (see Picture 22).
9/18 11/12
chain 9x27 max. 18m
chain 11x31 max. 12m
Picture 22 canvas chain bag
Picture 21 plastics chain bag
16 m 4 mm
8 m 7 mm
Ensure that the appropriate chain bag is used for the applied chain dimension of the
chain hoist (see labelling with chain dimension and filling quantity on the chain bag).
Do not overload the chain bag!
When replacing chain bags please observe that chain bags for chain hoists, which are
equipped with a chain guide plate, have a suspension which has another bending.
The mounting of the chain bag is carried out according to Picture 21 with screws and a self-locking nut. The nut has
to be torqued till the screw is seated correctly. The self-locking nut has to be replaced after repeated assembly of the
chain bag if the retaining effect of the nut can no longer be guaranteed.
The mounting of the chain bag will be carried out as described below:
Fit the end of the dead end chain with lift limiter and rubber buffer into the chain bag when the chain is almost
completely extended.
Mount the chain bag to the suspension on the chain hoist with the screw included in the delivery. Fit the last
chain piece of the dead end chain between the suspensions and mount it with the same screw.
The chain end of the dead end chain must not be twisted by more than turns.
Make sure that the lift limiter is installed according to 5.1.2.2 so that it is lying on the bottom of the chain bag.
Run the complete chain into the chain bag with a lifting operation of the chain hoist
Check the filling height according to the marking on the side of the chain bag (Picture 21and Picture 22).
5.1.3.2. Oversize chain bags
If the chain weights more than approx. 22 kg, the strain of the chain bag has to be relieved with a
special canvas strainer strap. This strap must be strained by means of a ratchet and the correct
position must be checked with the partly filled chain bag (chain weight approx. 10kg).
The use of these chain bag types is not permitted without relief by a canvas strainer strap!
The suspension point of this strap for a stationary suspended hoist has to be provided by the customer (see Picture
23), as the local conditions are unknown.
If the hoist is fitted to a trolley the manufacturer provides a dual trolley to fit the chain bag strainer strap (special
option see Picture 24). Please take care that the strainer strap has to be tightened in accordance with this manual
and inspected in regular intervals and corrected if necessarily.
Please use the edge protectors at the suspension points (see Picture 23).
canvas strainer strap
Picture 24 electric chain hoist with chain bag
suspended at the tandem trolley
Picture 23 stationary suspended electric chain hoist
Not suitable for single
bolt trolleys
The suspension point for the strainer strap has to be provided by
(Not suitable for curved beams. In special
cases ask the manufacturer.)
The end of the strainer strap has to be fixed and tightened with the strainer strap and the ratchet as shown in Picture
fixed end of the strainer strap
free end of the strainer strap
Picture 25 strain strap with ratchet
5.1.4. Hook tackle
The hook tackle used to attach loads for hoists in single-fall version.
Hook tackle for chains
722, 927, 1131 and 11.331
2 or 4 cylinder
screws with scrap
cover plate with label for
rubber buffer including
washer of steel
casing with marking 4
load hook complete
(incl. pressure
(incl. pressure bearing)
(the casted piece shows
the number 4 as a
permanent mark)
(the casted piece
shows the number 5
as a permanent mark)
Picture 26 assembly of hook tackles
To avoid mistakes the chain size (4 or 5) is marked in the chain pocket in the casing for hook tackles for chain 4x12
and 5x15. The usage of the hook tackle is only permitted for the intended chain size.
Hook tackles may only be mounted with functional rubber blocks (Picture 26).
For the assembly of the hook tackles please tighten the connection screws with the following torques:
Hook tackle chain 412
Hook tackle chain 515
Hook tackle chain 722
M1030 DIN 912
Hook tackle chain 927
M1230 DIN 912
M1235 DIN 912
Hook tackle designation
Hook tackle chain 1131
Hook tackle chain 11.331
Table 2 connection screws with torques for hook tackles
During maintenance work the condition of the load
hook and of the rubber buffer has to be checked
(wear and centre punch spacing) according to
section 7.7. For the 412 and 515 chain hook tackle
the plastic cover (in Picture 26 cover plate) has to be
checked additionally and changed if worn.
Furthermore the pressure bearing, the safety latch
and the condition of the pin, which secures the hook
nut, have to be checked. The grooved pin has to be
secured by 2 punch marks (see Picture 27). If
required the axial bearing has to be cleaned and
punch marks (2x)
Picture 27 hook nut locking
5.1.5. Hook block
The hook block is used to attach the load in double-fall version.
split pin across to the
shaft of the hook
(Only for versions
8.1 and 9.1)
safety pin for hook
Picture 28 assembly of hook block
locking by grooved
pin (The grooved pin
has to be locked by 2
punches.)
Hook blocks may only be mounted with functional rubber buffers (Picture 28).
For the assembly of the hook blocks please tighten the connection screws with the following torques:
Dimension of screws Qty.
M535 DIN 912
M635 DIN 912
M850 DIN 912
M1050 DIN 912
35/20*
M1260 DIN 912
Torques marked with * only apply for upper screw near the rubber buffer.
This one screw has to be locked into the threaded bore hole with a registered screw locking paste.
Table 3 connection screws with torques for hook blocks
At all maintenance work the condition of all the parts has to be checked according to 5.1.4. The condition of the
chain sprocket and of the ball bearing has to be checked as well (inspection for wear of chain sprocket see 7.2). If
required the bearings have to be cleaned and greased.
Hook block for chain
412, 515, 722, 927, 1131 and 11.331
The chain hoists are equipped with oil filler and drain plug on the top and bottom side of the casing.
Having completed assembly, the split washer has to be placed under the oil filler plug (top side of casing) to avoid oil
leakage due to high pressure inside the gearbox (see Picture 29).
You will find this split washer fastened with a piece of self adhesive tape next to the oil filler plug. Chain hoists with a
low duty rate (e.g. usage for stage machinery) are not equipped with a split washer.
split washer at delivery
Picture 29 gear ventilation
For outdoor use, high air humidity and big differences in temperatures the use of the split washer is not
The usage of the split washer is also not recommended for a mobile use of the chain hoists (e.g. usage for inverted
use) to avoid oil loss in case of improper storage.
5.1.7. Electric chain hoists for inverted use
Electric chain hoists can be delivered for inverted use. It is possible for most models to convert the hoist to this mode.
The necessary parts can be supplied by the manufacturer! Consult the manufacturer before starting the conversion!
If the hoist is used in inverted mode in open air it is necessary to prevent the hoist from rainwater to prevent a slack
flow in the hold down or the chain guide.
Chain hoists with limit switches or with control levers for limit switches mounted on the
outside must not be used in the inverted use mode!
Chain hoists which should be used in the inverted mode must be equipped with a chain
If the hoist is used upside down the load fall and the dead end of chain is showing to the
top. For safe use both chain falls have to be kept tighten at all times. If not taken care of
this advice, the hoist and the chain can be destroyed which can produce dangerous
situations. Nonobservance of this advice can cause a chain choking in the chain guide
and so a destruction of the hoist and the chain.
5.1.6. Gear ventilation for stationary chain hoists
chain bag with bended frame
Picture 30 electric chain hoist for inverted use
The installation of the electric connections must be carried out in accordance with the applicable
regulations. The state of the art for the electric equipment of hoists is described in DIN EN 60204-32.
After having completed the electric installation check them in accordance with point 19 of DIN EN 6020432. If the electric chain hoists are delivered without connections and plugs the installation has to be
carried out by the customer. The usage of a neutral conductor is necessary for a few circuit variants.
Details on the connection and function of the chain hoist can be found in the wiring diagram.
It must be able to disconnect the mains power supply at all poles by means of a main switch in
accordance with DIN EN 60204-32 section 5.3. Work on the electric installation may only be carried out
by authorized personnel for electrical equipment. The equipment must first be disconnected from the
power supply before start of work, must be secured against switching-on and the de-energised state of
the equipment has to be checked.
5.2. Electric equipment and connection
5.2.1. Voltages
All chain hoists work with rotary current and have a standard voltage of 400 V 3~ 50 Hz or 230 V 3~ 50 Hz. Different
voltages and frequencies are possible.
The electric chain hoists with one lifting speed are suitable for operation with a wide voltage range of 380 - 415 Volt (220
240 V) for 50 Hz.
5.2.2. Mains connection
In order to ensure the proper functionality of the hoist, the power must be connected to a clockwise
(CW)turning 3 phase AC supply. Connection has to be corrected if deviations occur. Power connection
is correct, when the control button for lifting the load is pressed and the chain hoist moves the load
Before the connection check if the mains voltage agrees with that specified on the type plate. Connect
mains current supply lines and control line in accordance with wiring diagram.
The connection is carried out after removal of the casing cover form the control side. A cable with a
diameter of at least 1.5 mm is required for the connection.
Fuses (slowly blowing) in front of main switch:
Table 4 pre-fuse
1 / 1.1 / 1.3
2 / 3 / 4 / 4.1 / 4.3
4.2 / 5 / 5.1 / 6 / 6.1 / 7 /7.1 / 7.2 / 8.1 / 8.2 / 8.3 / 9.1
Fuses (slowly blowing) 400 V
Fuses (slowly blowing) 230 V
After connection the proper function has to be tested. Press button for lift (or choose the direction lift and push run button).
If the load moves downwards, the rotary field has to be checked and the connection has to be adjusted accordingly
(Disconnect mains supply before!).
5.2.3. Direct control
It is strictly prohibited to use 5-pole plug connections for the usage in the feed
cable to the chain hoists for direct control.
The prohibition is a security against an unexpected start-up when the CEE plug is
accidentally put into a normal CEE socket.
The control of the motor for direct control is carried out by a direct switching of the rotary current. Chain hoists for direct
control are normally equipped with a connecting cable with a 4-pole CEE plug. If the chain hoist is not equipped with a
connecting cable and plug, the connection can be carried out as described in 5.2.2.
The feeder clamps for chain hoists for direct control are situated under the casing cover. The brake contactor and the brake
rectifier can also be installed here. Some models have this devices installed on the opposite site, directly next to the brake.
In some cases the coil of the brake contactor is current winding and will be operated in one phase in series connection with
Picture 31 version with direct control
5.2.4. Low voltage control (contactor control)
The control components for chain hoists for low voltage control are situated under the casing cover. The feeder clamps can
also be found here. Chain hoists which work as stand-alone device are additionally equipped with a control transformer or
power supply unit with the corresponding control fuse. Further components can also be installed, e.g. the evaluation unit
for the electronic lifting power limitation (see 5.2.7).
Low voltage controls work with 24 V AC or DC by default, other control voltages are possible.
control transformer / power supply unit
Picture 32 version with low voltage control
5.2.5. Electric limit switch for lift limitation
The limit switch for lowering is activated by the
lift limiter mounted on the chain; the limit
switch for lifting is activated directly by the
hook tackle. If the lifting range should be
limited in upper direction, an additional lift
limiter (with rubber block) has to be installed
on the load fall of the chain above the hook
Moving the lift limiter on the chain can limit the
usable lifting range.
On request the electric chain hoists with low voltage control can be fitted out with electric limit switches to limit the highest
and lowest hook positions.
Please make sure during operation that the lifting direction shown on the control
pendant agrees to the real hoist movement as this is absolutely necessary for the safe
operation of the limit switches (see 5.2.2). The safe operation of the respective limit
switches for lifting and lowering has to be checked.
limit switch for lower end position
limit switch for upper end position
Picture 33 electric limit switches for low voltage control
motor / brake device
Chain hoists can also be equipped with a geartype limit switch. This device can be found
within the chain hoist next to the brake. The
gear-type limit switch can be equipped with 2,
4 or 6 limit switches which work independently.
An individual switching position can be
adjusted with an adjusting spindle for each
Detailed information about the adjustment of
the gear-type limit switch can be found in a
separate instruction. This instruction will be
delivered with the documentation if the chain
hoist is equipped with a gear-type limit switch.
Picture 34 equipment with gear-type limit switch
5.2.6. Control cable with control pendant
For chain hoists which are equipped with a
pendant button panel the control cable comes
out of the casing downwards. Next to the cable
inlet is an ear for fastening the strainer strap.
Make sure that no traction forces are
influencing the control cable during the
installation. The length of the strainer strap has
to be adjusted if necessary.
strainer strap
Picture 35 strainer strap of the control cable
5.2.7. Electronic lifting power limitation
Chain hoists with low voltage control can be equipped with an electronic device for lifting power limitation. For this purpose
the chain hoist is equipped with a force sensor which measures the forces on the load fall. The evaluation and the switchoff will be carried out by an evaluation unit, which is installed in the chain hoist. The shut-down threshold for underload (if
the chain is slack) and overload can be adjusted separately on the evaluation unit. A further adjustable switching signal is
used for the sensor supervision and switches the control of the chain hoist off, if there is a sensor defect, an interruption of
the sensor cable or a power dip of the evaluation unit.
It is not permitted to increase the load capacity by manipulating the adjustments of the
electronic lifting power limitation.
The evaluation unit is situated under the cover
of the low voltage control (Picture 32). The
electronic board is protected by a cover. After
removal of that cover the 3 adjustment devices
for the shut-down thresholds are accessible.
The switching state for the three switching
functions will be indicated by a LED.
adjustment device:
underload (P3)
overload (P2)
The LEDs are situated on the right side of the
relay, next to the adjustment devices. The LED
sensor lights up if the force sensor is
connected and the operating voltage LED UB
lights up if the device is supplied with voltage.
Picture 36 evaluation unit of the electronic lifting power limitation
The chain hoist must be suspended for the adjustment so that the force sensor is operative. The following steps have to be
performed for adjusting the switching thresholds:
Remove cover from evaluation unit.
Turn P1 counter clockwise until the corresponding LED 1 lights up.
If LED 2 (overload) is not lighting up, turn P2 counter clockwise until LED 2 lights up and
lifting of the test load is possible.
If LED 3(underload) is lighting up, turn P3 clockwise until LED 3 lapses.
Lift maximum test load (overload) and turn P1 counter clockwise till the corresponding LED
1 lights up.
Turn P1 for 2 -3 turns further (The adjustment value should be so high that it can never be
reached by maximum load).
Turn P2 clockwise with maximum load (overload) till the corresponding LED 2 lapses.
Drop maximum test load (overload) LED 2 must lights up again.
Lift maximum test load again for control purposes a switch-off has to take place.
10. Drop test load, lift nominal load. There mustnt be a switch-off.
11. Drop test load, lift underload test load (standard: 10% of nominal load).
12. Turn P3 counter clockwise so that the corresponding LED 3 lights up.
13. Check lowering; lowering may only be possible with activated underload bridging.
14. Slightly increase test load and check lowering again. LED 3 has lapsed and lowering must
be possible without activating the underload bridging.
15. Drop test load and mount cover of evaluation unit.
6. Directions and prohibitions for use
The modern construction of the electric chain hoist guarantees safety and
economic usage when it is operated appropriately. The patented safety sliding
clutch is mounted between motor and brake which allows for a safe braking of
the load without pressure on the clutch.
The electric chain hoist may only be operated if it is properly mounted and works
6.1.1. Requirements for the
The Operation of the electric chain hoist may only be performed by people who
were authorised with the employer and were briefed by the employer regarding
the function and the operational conditions according to section 2.1.8. The
person must be suitable for this task from the physical and sanitary point of
The operating personnel must observe the operating instruction.
6.1.2. Dangers for people and
When operating the hoist, especially for improper use, there are risks due to
oscillating and falling loads and falling and tumbling objects.
There is a risk of crushing, cropping and of being pulled in the chain hoist at
6.1.3. Precautions and codes
some parts of the hoist and the load in the direct operation area.
Before the assembly mobile hoists have to subject to a visual test, including
all parts necessary for the operation (e.g. slings, controls, cables). A
functional test has to be performed before every new commissioning at a
Inspect the external condition and the function of brakes and emergency
limiters (except sliding clutch) before starting the operation.
When moving loads a minimum clearance of 0.5 m to the environmental
parts has to be observed.
Hoists have to be mounted in a way that they can move freely during
operation. Load chains have to be moved in a way that they can go in and
out without any interruptions.
Casings and chains must not touch any other parts of the construction during
Personal protective equipment (hard hat, protective shoes, protective gloves)
has to be used to avoid injuries during assembly and disassembly of hoists
and when a person moves around in the working area of hoists and when
loads are suspended.
Loads may only be transported by means of the bearing elements above the
hoists and not via other parts or the casing.
The maximum allowable load capacity of hoists has to be observed.
Load may only be lifted vertically upwards, pulling loads is not allowed.
Loads may only be moved if they are properly fixed with permitted slings.
Load chains may not be turned around edges.
Connectors of slings (e.g. bolts from shackles) have to be secured against
automatic loosening.
Loads may only be lifted from a standing position with the lowest lifting speed
available. Slack suspensions have to be stressed before starting to lift loads.
Lifting loads have to be carried out in a way that loads can not oscillate and
Secondary safety component have to be used for holding loads above
people with chain hoists according to BGV D8.
It has to be observed that the outgoing chain can leave the hoist safely
because of her own weight.
If not, the chain can be trapped inside the hoist and can break the casing of
Chains must not be twisted during operation.
Touching the chain is prohibited during operation.
When using a double fall hoist it has to b observed that the chain does not
get twisted by by throwing the hook block throught the two vertical chains.
Dont lower the double fall hook up to a position, where the chain gets slack.
Switch off the control and secure the control against unauthorised usage
when leaving the operator station.
When using chain hoists in a version according to D8 the load has to be put
down to the ground or has to be secured when leaving the operator station. If
this is not possible, the area must be closed by means of a barrier.
When using a trolley the load capacity value must be higher than the value of
the electric chain hoist or must be equal.
When using the hoist with a trolley at arms reach (height of the trolley beam
< 2.5m) it is forbidden to hold extremities into the operating radius.
Move electric chain hoists with push trolleys only by puling on the load, the
hook block or the hook tackle.
The operator has to assure oneself by means of the symbols on the control
that the move will be carried out in the correct direction before activating
devices to start the motional process.
Motional processes which can cause any dangers have to be carried out only
if the speed is appropriate for the situation
1. if protection devices are available for securing the concerned area
2. if the concerned area will be controlled by the machine operator
3. if the concerned area is clearly and constantly marked.
6.1.4. Performance of motional
6.1.5. Behaviour in case of a
People who are authorised for operating the device may not endanger
oneself or other people when moving the hoist.
The unnecessary stay in the moving range of the hoist is prohibited.
If the view is insufficient, the operator has to be instructed by someone else.
Instructions for starting motional processes have to be issued quite clearly.
In case of a failure the hoist has to be switched off immediately.
Determined failures have to be reported immediately to the person in charge.
Failures may only be removed by competent personnel according to section
1.4.1 1.4.3.
6.1.6. Behaviour in case of an
Stop operation immediately and the scene of the accident have to be
For accidents involving electrical current, disconnect the circuit by switching
Hoists have to be maintained according to section 7 in regular intervals.
Maintenance and repairs may only be carried out by competent personnel
according to 1.4.1 - 1.4.3
Before starting the maintenance or repairs the equipment must first be
disconnected from the current supply must be secured against a restart and
a de-energised state of the connection has to be determined when working
on the electrical equipment
Maintenance and repairs may only be carried out without any lifted loads.
Tests on hoists and electrical equipment can be carried out if necessary but
at least once a year according to section 3.
6.1.7. Maintenance and repairs
it off or by removing the power plug.
Call first-aiders!
Dial emergency telephone code
Report the accident to the person in charge.
All maintenance work must be carried out by competent personnel.
The maintenance Table 5 lists the parts and functions to be tested and the necessary maintenance
work. Defects have to be reported to the operator in writing inmediatelly. The operator initiates the
rectification of a defect by competent personnel.
Maintenance work may only be carried out if the electric chain hoist is not loaded.
The electric chain hoist hast to be disconnected from the current supply before starting the
Shorten the periods between maintenance works in very demanding operating conditions, e.g. multishift operation, high number of switching actuation, poor environmental conditions.
Information regarding the performed maintenance and tests and the replacement of components, which
have to be checked regularly, have to be recorded in the crane logbook.
7.1. Performance of test and maintenance works
The regulations and standards in section 1.7 have to be observed when performing any test and maintenance works.
The intervals in the following table are only reference values. If the hoist is working hard (two or three shifts, high
percentage of work with nominal load, dusty or high temperature environment) this maintenance work has to be done more
visual inspection of the overall condition
emergency stop (except sliding clutch)
wear of the load chain (see 7.6.2)
lubrication of the load chain according 7.6.1
wear of the rubber elements (visual check)
lubrication of hook block and hook tackle acc. to chapter 9.2/
check condition of the pin which prevent the hook nut from
loosening and chisel punch marks
check condition of safety latch of the hook
universal checks of
hold down, chain guide
check of the condition and safe positioning of the chain bag and
condition of the canvas material as well
check of the control equipment, power cable and control pendant
check of the trolleys and wheels
Table 5 test and maintenance works
The electric chain hoist is designed in accordance with FEM 9.511. If the hoist is used under the conditions of FEM 9.511, including the described frequency of maintenance work, the electric chain hoist
must be overhauled after 10 years.
Inspect suspension hooks (for the version with hook suspension) and load hooks for deformation
(measure centre punch spacing see 7.7), rust and crack formation.
The chain sprocket in the hook block must be replaced if the running surface is worn by about 1 mm.
Replace rubber block on lift limiter, hook tackle / hook block if worn.
Inspect the chain regularly according to section 7.6 for wear and damages.
Inspect chain guide and hold down for wear and damages.
For hoists with chain guide plate, check this plate regularly for wear and damages.
7.2. Testing of wear
7.3. Maintenance and adjustment of the DC disc brake
The DC disc brake needs very little maintenance.
7.3.1. Electric control of brakes mode of operation
The DC disc brake is supplied through a rectifier circuit. It operates according to the fail safe principle. If there is a power
failure, the brake acts automatically so that the load is held safely in every position. To shorten the braking distance the
brake is operated in a DC circuit. (When a double brake is used only the operational brake is switched in a DC-circuit so
the safety brake has a delayed reaction).
The different switching types for the brakes in direct control and low voltage control can be found in the corresponding
7.3.2. Configuration of the single brake
Picture 38 construction of the brake for version 2-9.1
Picture 37 construction of the brake for version 1-1.3
Construction of the DC disc brake
The DC disc brake consists of the magnetic coil (1), the
anchor plate (2), brake pressure springs (3), the 3
positioning springs (4), the 3 self-locking adjusting nuts (5)
and the brake disc (6) with the brake lining (7).
positioning springs (4), the 3 self-locking adjusting nuts
(5), and the brake ring (6) with the 2 pieces of brake lining
(7), the brake hub (8), which is form-locking connected
with the brake ring (6) by 3 balls (9).
7.3.3. Adjustment of the air gap of the single brake
If, after a long period of use (about 500,000 brake operations), the air gap between the
magnetic coil (1) and anchor plate (2) has increased to approx. 0.8 mm, the brake must
1. Put thickness gauge between magnetic coil (1) and
anchor plate (2) (inserting not more than 10 mm).
2. Tighten the 3 adjusting nuts until the air gap between
magnetic coil (1) and anchor plate (2) reaches the
dimension as defined in Picture 39.
3. Finally check the right size and regularity of the air
gap with thickness gauge.
thickness gauge 0.4 for version
thickness gauge 0.5 for version
thickness gauge 06 for version 69.1
4. After repeated adjustment of the brake, the 3 selflocking nuts must be replaced as their locking
function becomes ineffective.
Picture 39 adjusting the single brake
7.3.4. Configuration of the double brake
Chain hoists according to D8Plus (VPLT SR2.0) or BGV C1 are equipped with a double brake.
The operational brake and the safety brake are independently working brakes. They are mounted in
series on the motor pinion shaft. The brake mounted inside (motor-sided) is the operational brake, the
other on is the safety brake. Both brakes are DC disc brakes with the same principle of operation.
operational brake safety brake
Picture 40 arrangement of operational and safety brake
7.3.4.1. Operational brake configuration and function
The configuration and function is equal to the single brake (7.3.2). The brake magnet of the operational brake is also
switched in a DC-circuit so that it can react immediately.
The operational brake consists of the magnet (1) with the magnet coil, the anchor plate (2), the 3 pieces brake pressure
springs (3) (not shown), the 3 pieces magnet fastening screws (4), the 3 pieces adjustment screws (5) (not shown), the
brake ring (6) with 2 pieces brake lining (7) and the brake ring hub (8) which is form-locking connected with the brake ring
(6) by 3 balls (9).
Picture 41 configuration of the brake components
7.3.4.2. Safety brake configuration and function
The function of the safety brake equals the single brake (7.3.2). The brake magnet of the safety brake is switched in an ACcircuit so the brake reacts slightly delayed. So the braking distances get longer and the dynamic impact of both brakes is
The configuration equals the single brake (7.3.2). The difference to the operational brake (7.3.4.1) is that the magnet (11) is
carried by 3 supporting springs (12) and the adjustment of the air gap is carried out by means of 3 self-locking nuts (13).
7.3.5. Adjustment of the air gap of the operational and safety brake
Adjust at first the air gap of the operational brake and afterwards the air gap of the
safety brake. The air gap to be adjusted for operational and safety brake is the same.
The air gap to be adjusted is:
SB2 SB4.2
SB6 SB8.3
Table 6 air gap of the brakes
Put thickness gauge according to the version (table 6) between magnet (1) and anchor plate (2) of
operational brake (insert max. 10 mm).
Loosen the three adjustment screws (5) by turning right. The adjustment screws move in the
direction of the casing so that the magnet of the operational brake loosens.
Fasten the 3 magnet fastening screws (4) till the gap between the between magnet (1) and anchor
plate (2) of operational brake equals the thickness auf the gauge.
Fasten the 3 adjustment screws (5) by turning left till the magnet of the operational brake (1) is fixed.
Retighten the magnet fastening screws (4).
Finally check the right size and regularity of the air gap with thickness gauge.
7.3.5.2. Adjustment of the air gap of the safety brake
Put thickness gauge between anchor plate (10) and magnet (11) (insert max. 10 mm).
Turn the three self-locking nuts (13) to the right till the air gap between magnet (11) and anchor plate
(10) equals the gauge thickness mentioned in Table 6.
Finally check the right thickness and regularity of the air gap with thickness gauge.
After repeated adjustment of the brake, the 3 self-locking nuts must be replaced as their locking
7.3.6. Checking brake function
When braking the nominal load during the lowering process, the braking distance should not be longer
than three chain link lengths and the load should not be braked in a jerking manner. If the braking
distance is longer, check the pressure springs for breach and fatigue. Check the required DC-switching
of the brake according to the circuit diagram and the function of the switching devices, if necessary.
7.3.7. Individual test of operational and safety brake
The brakes have to be tested individually to determine the full effectiveness of both the operational and
safety brake. The tests must be carried out during the maintenance work and are performed with nominal
The brake magnets are connected via plugs which are situated directly next to the brake components of
the chain hoist. These plugs have to be plugged off and on for the individual tests of the brakes.
The plug to the operational brake is marked with 1 and the plug to the safety brake is marked with 2.
A further plug next to the brake component is used for a permanent opening of the brakes to provide a
test voltage. This plug is marked with P and is charged even if the chain hoist is standing still.
Depending on the version of the chain hoist (e.g. direct control) such a plug is possibly not available. In
this case a separate testing device is necessary (available as additional equipment).
In some special versions the test can be part of a control. Details about the performance of the test can
be found in the corresponding manual.
The plugs of the brake magnets are connected to main power. The chain hoist has to
be disconnected before activating the plugs to avoid injuries due to current.
The braking distance during the test of the safety brake can be up to 30 cm depending
on the lifting speed due to the delayed switch-off of the safety brake. An appropriate run
out for the test load has to be provided during the test.
7.3.5.1. Adjustment of the air gap of the operational brake
7.3.8. Replacement of brake lining
Test of the security plug:
1. Disconnect plug 2
2. Connect plug 2 with test plug P (or the separate test device)
3. Perform the brake test with the moving nominal load.
4. Disconnect test plug P (or the separate test device)
5. Connect both parts of plug 2.
Test of the operational brake:
1. Disconnect plug 1
2. Connect plug 1 with test plug P (or the separate test device)
5. Connect both parts of plug 1.
7.4. Sliding clutch
The brake lining (part 7 inPicture 37) of brake type B1 till B1.3 has to be replaced when the thickness of it
is less than 2.0 mm.
The brake lining (part 7 in Picture 38) of brake type B2 till B5.1 has to be replaced when the thickness of
it is less than 2.0 mm and the brake lining of brake type B6 till B9.1 has to be replaced when the
thickness of it is less than 3.0 mm.
The sliding clutch is located between the motor and the brake so that the power from the brake to the
load is transmitted by gear parts in form-fitting connection. Even if the clutch is seriously worn, the load
will not fall uncontrolled as the load can be held in every position by the brake.
The sliding clutch operates as a dry clutch under usage of a non-asbestos lining
The sliding clutch is an emergency limiter and it is not allowed to use it permanently. That means it is not
allowed to run the hook block or tackle or the lift limiter against the body of the hoist to limit the lifting
movement for standard operation as they are emergency limits only.
7.4.1. Mode of operation of sliding clutch
The rotor (1) is tightly connected with the hollow shaft (2). The
hollow shaft (2) is mounted with the bearing bushes (3), which do
not require lubrication or maintenance, on the motor pinion shaft
(4). The motor power is transmitted through the hollow shaft (2)
with the coupling flange (5), through the asbestos-free clutch lining
(6) to the brake hub (7). The brake hub (7) is rigidly connected with
the motor pinion shaft (4) by means of a feather key (8) so that the
driving force is conducted into the gear. The clutch torque for
transmitting the force is set externally with the adjusting nut (9) on
the spring collar (10) through the compression spring (11). The
pressure nut (9) is secured by the counter nut (12). So the screw
Picture 42 construction of the sliding clutch for versions 2 - 9.1
The sliding clutch of the versions 1-1.3 and the slow speed motor of the version 9.1 are
located at each side of the rotor (similar to Picture 44).
7.4.2. Adjusting the clutch
The clutch has to be adjusted in such a manner, that the nominal load can be lifted
safely under all operating conditions.
The sliding clutch acts as a direct actuated lifting load limiter according to DIN EN
14492, point 5.2.2.2.1. With hanging load on the hook, the correctly adjusted clutch
shall start to slide at approx. 120% of the nominal load. Deviations may occur due to
very high or very low lifting speeds.
It is recommended to approach the casing with the hook tackle once to activate the clutch. The slide period should not be
longer than 2 3 seconds.
This method is not allowed for the models B8.1 B9.1 due to the high clutch forces. The clutch can
alternatively activated by using an overload.
Turn the pressure nut (9) with the welded-on spring collar (10) until the lock washer groove
is in line with the groove at the magnet (13).
Insert a bar (screwdriver) into the magnet (13) and hold the spring collar with the pressure
nut (10) in place. Then loosen the lock nut (12).
Tighten the compression spring (11) with the pressure nut (9) sensitively to exactly the point
where the test load is raised.
Secure the pressure nut (9) again with the lock nut (12) with torque wrench, values as listed
clutch version 1-1.3
hex. nut M121.5 DIN 936
clutch version B2-5.1
clutch version B6-9.1
hex. nut M161.5 DIN 936
Test the clutch setting once more by raising the nominal load to the uppermost load position
and test the reaction of the sliding clutch with approx. 120% of the nominal load. The slide
period should not be longer than 2 3 seconds.
Picture 43 adjusting nut for clutch power
7.4.3. Mode of operation of the slide clutch for the slow speed motor of version 9.1
The rotor (1) is mounted with two bearing bushes (2), which do not require lubrication or maintenance on the motor pinion
shaft (3). The torque of the motor is transmitted through the two clutch linings (4) on the clutch hubs (5), which are rigidly
connected with the pinion shaft (3) by means of feather keys (6). The clutch torque can be set externally with the adjusting
nut on the spring collar (7) through the compression spring (9).
Picture 44 construction of the sliding clutch for the slow speed motor of version 9.1
7.4.4. Adjusting the clutch on the slow speed motor of the version 9.1
Remove the screws (10) and the cap (11) and the spring plate of the limit switch for lifting movement
underneath the hoist body (without part no.)
Loosen the lock nut (8).
Tighten the compression spring (9) with the pressure nut (7) sensitively to exactly that point where
the test load is just raised.
Secure the pressure nut (7) with the lock nut (8).
Test the clutch setting once more by raising the nominal load to the uppermost load position. The
slide period should not be longer than 2 3 seconds.
Mount the cap (11) and the limit switch spring plate again.
(part numbers relate to Picture 44 construction of the sliding clutch for the slow speed motor of version 9.1)
7.4.5. Test of sliding clutch
7.5. Chain guide plate
A visual inspection has to be performed regarding the state of the clutch and wear. High abrasion or a blue colouration of
the components can be indications for an overload. In this case the clutch lining and the pressure spring have to be
replaced if necessary because a correct adjustment is no longer possible.
The function test is carried out with nominal load. The load has to be raised several times from a standing position and
when it is suspended. Afterwards a test is carried out with approx. 120% of the nominal load. At this point the clutch should
start to slide.
When using the clutch as emergency limiter the test is carried out by approaching the lift limiters in both directions. The test
will be performed with every possible lifting speed. The slide period should not be longer than 2 3 seconds.
If the chain hoist is equipped with an additional chain guide plate this plate has to be checked for high
wear or damages. Pay attention to the chain cross. If there are damages which prevent the chain from a
free flow the chain guide plate has to be replaced. Small damages (burr) can possibly removed with a
7.6. Load chain
Hoist chains are means of carrying which require official approval. Therefore, it is important to observe the guidelines
issued by the trade associations centre for accident prevention with regard to round steel chains in hoisting operation, the
guidelines for general inspection and test specifications in accordance with DIN 685-5, BGV D8, BGV D6 and DIN EN 8187.
7.6.1. Lubrication of the load chain before commissioning and during operation
The links along the entire length of the load chain must be lubricated with penetrating gear lubricant oil
before starting operation for the first time and regulary during operation, without loads in each case.
Subsequent lubrication, whereby the links must be cleaned first, depends on the degree of use and the
A dry-film lubricant, e.g. lubricating varnish, graphite powder, should be used when ambient influences
are conducive to wear (sand, emery).
7.6.2. Testing of wear and measuring wear of the load chain
The continuous monitoring of the load chain is compulsory according to DIN 685 section 5 respectively
UVV BGV D8 & 27. The load chain must be tested before starting operation and after approx. 200
operating hours or 10,000 load cycles under normal conditions or more often under demanding and
Testing must cover checking links, particularly at their points of contact, for wear, cracks, deformation
The chain must be replaced:
if the nominal thickness at the points of contact is reduced by 10%,
if a chain link is elongated by 5%, or an eleven links piece of chain is elongated by 2%,
if the links are rigid.
The wear limit can be determined with the following table. For this purpose, check measurements will be carried out on
selected individual link pieces and partial measurements over 11 link pieces.
11 chain links
measure chain link
dm = 0.9d
Table 7 measurement of chain dimensions
chain dimensions mm
measure 1 link inside
max. measurement t
If the maximum dimensions in Table 7 (also for individual link pieces) are exceeded, the load chain must be replaced
according to 5.1.2.2 and the following.
When replacing the chain, the chain guide and the hold down also have to be replaced (see 5.1.2.1)
Caution! Only original spare parts by the hoist manufacturer have to be used as replacement
7.7. Measuring wear and replacing the load hook
Load hooks are components which require official approval. According to DIN 15401 part 1 load hooks
have to be replaced if there is an enlargement of more than 10%. Check the distance between the chisel
punch marks (value a). To be able to assess the wear of the hook, check also the value h.
These values have to be measured at each new hook and must be documented in the hook certificate in
the Inspect and test logbook as should-be values.
value a: distance of centre punches
value h: height
chisel punch marks on both sides
Picture 45 measurement of wear on load hood
The load hook has to be replaced, if
values a or h are different more then 10%
mechanical damages and deformation
hugh formation of rust
Further test and maintenance notes for hook tackles and hook blocks see also section 5.1.4 and 5.1.5.The hooks of the
hook suspension have to be checked in the same way.
8. Duty rate of an electric chain hoist
running time period of rest running time period of rest
The duty rate, expressed as the cyclic duration factor
(c.d.f.) is the ratio of
running time to running time + period of rest
c.d.f. =
1 lifting cycle
The duty rate (DR) and the number of operating cycles in
one hour must not be higher than as shown on the
specification plate of the hoist or in a technical data table.
(see FEM 9.683).
running time x 100%
running time + period of rest
The duty rate is limited by the permissible degree of heat in the lifting motor. The running time is dependent on the
necessary lifting height, lifting speed of the electric chain hoist and the number of lifting motions required for a particular
transport procedure (transport of goods, feeding machines or installation purposes).
The duty rate applies for a maximum environmental temperature of 40C. If the environmental temperature is higher, the
duty rate must be reduced. It is difficult in practice to take note of the duty rate during the lifting operation. We, therefore,
give the following practical guidelines:
8.1. Short time duty
This duty type is not permissible for the slower speed of hoisting motors with two lifting speeds. After having reached the
maximum running time a break is required and the hoist can be further used in intermittent duty mode.
The permissible operating periods without cooling interval (with maximal 10 activations) when operation starts and with a
motor temperature of approx. 20 C are following:
operating period *
acc. to FEM 9.511
acc. to ISO 4301
acc. to FEM 9.683
(tB in min)
Table 8 duty rate for short time duty
* The operating periods tB of the ChainMaster chain hoists are higher then required acc. to FEM 9.683.
8.2. Intermittent duty
Operation must be interrupted whenever the highest permissible operating time is reached. The following breaks are
necessary depending on the duty rate c.d.f. of the electric chain hoist:
5 times running time
4 times running time
3 times running time
2.5 times running time
1.5 times running time
1 times running time
0.66 times running time
Table 9 duty rate for intermittent duty
8.3. Example for the determination of the duty rate
The electric chain hoist type 500/1-10 have to lift loads of 500 kg to a height of 5 m.
Duty group of the
At the beginning of the lifting operation the electric chain hoist has a temperature of approx. 20 C.
5 m lifting + 5 m lowering
10 m/min lifting speed
= 1 min for each lifting cycle
During the operation without break (short-time duty = max. 30 minutes without break acc. to FEM 9.683) max. 30 lifting
cycles are possible.
After 30 minutes of operating time, 1.5 minutes break for each minute of operating time must be taken (i.e. 1.5 times of the
operating time). This break is usually necessary for slinging and taking off loads.
Cooling periods are imperative for extreme lifting heights (from 10 metres on). Low
lifting speed should only be used for precise lowering and lifting. It is not suitable when
greater lifting heights shall be driven through.
To protect the lifting motor a thermal overload sensor is offered as an option. A thermal
overload cant be installed in electric chain hoists with direct control.
9.1. Gear lubrication
The gear is already filled with oil by the manufacturer. The oil must be changed if the hoist is going to be overhauled. An oil
change is not necessary during service life. The oil has to be disposed in accordance with the law of environment
Use oil for 220 mm2/s at 40 C. The following oils can be
Oil designation
Alpha Zn 200
Reduktelf SP 220
XP 220 BP Energol GR
2 / 3 / 4 / 4.1 / 4.2 / 4.3 /
6 / 6.1 / 7 / 7.1 / 7.2 /
8.1 / 8.2 / 8.3 / 9.1
The necessary amount of oil needed for the different
versions of electric chain hoists is shown in table 11.
Version (basic type)
Table 11 amount of oil
Table 10 alternative oils
9.2. Lubrication of the hook block and the hook tackle
Lubricate the anti-friction bearings on the hook and the chain sprocket after approx. 20,000 lifting cycles
or once a year; if in heavy use shorten the interval. Use special anti-friction bearing grease.
Grease designation
Table 12 grease type
9.3. Lubricants for the load chain
Klber Lubrication Mnchen KG
CTP D 350
Klberoil CA 1-460
Klberoil 4UH 1-1500
Optimol Viscogen KL300
Table 13 lubricant types fort he load chain
10. Determination of the S.W.P.
alternative lubricants:
Within the framework of the periodic test the used part of the theoretic service life (residual service life) has to be
determined according to BGV D8 23 respectively BGV D6 26. Notes regarding this determination and a table about its
verification can be found in the logbook.
10.1. Measures to be taken at the end of the S.W.P.
After the hoist or its components have reached the end of the S.W.P. (see point 10) the hoist or its components have to be
overhauled or have to be disposed in an environmentally friendly way.
If the electric chain hoist cant be used any longer it has to be disassembled and the individual components have to be
disposed or recycled separately depending on the type of material.
Lubricants like oils or fats and non-reusable parts have to bed disposed in accordance to the laws of environment
A.1. Checklist for tests
Test notes for periodic tests of electric chain hoists when used according to BVG
D8, when used as a crane according to BVG D6, or when used according to BGV C1.
D8 Plus (SQ P2)
Usage according to
Notice of operation regulations
Ladders, runways
Declarations regarding loads on load
suspension means, load capacity diagrams
Information and prohibition signs
Other security markings
- to the side
Runways and stages
Steps, ladder steps, arbores
Flooring of runways / stages
Protection against falling (grabs, hand rails,
intermediate bars, back protections
Applicable / available
Manufacturer declaration / declaration of
Crane logbook
Component to be inspected
Notice / markings
(x) = fulfilled, (-) = not fulfilled, (0) = not necessary
Beam, suspension and connection bolts
Connections, attachments
Tracks: track gauge, distortion
Wind bracing (anti-storm-device)
Driving wheels, carrying wheels
Power drive unit:
Lubrication of gearing, pinions, track rollers
Power transmission, clutches
Securing of danger areas
Inspect the function of
the brakes for the crab
drive and limit switches /
End stops / buffers
Bridge, gantry, support, crane pontoon
the brakes for the crane
carriage and limit
switches / end stops.
Supports, beams
Bearings, pillars, bars
Force transmission points into building
Crane gantry / crane track / crane
carriage (crane travelling unit)
Foundation, bottom attachment
Screw connection, nut locks
Pillar vertical
the brakes for the
Slewing unit brake
slewing unit and limit
Slewing end stops /
Trolley construction / trolley carriage
(crab - cross travelling unit)
Hoisting gear ChainMaster
General inspection for points of impact,
cracks, breaks and damages:
Casing, cover, cap, suspension elements,
chain bag mounting element, suspension eye
for double fall version:
condition of casing pocket for chain end
mounting see Picture 3 in operation
Screw connections, bolts, eyebolts
Complete disassembly and inspection for
cracks, breaks, wear (especially hugh
enlargements of chain inlet cross) see
Picture 9 in operation instruction
cracks, breaks, wear
Chain actuator wheel
Inspection for damages and wear
Chain guide plate:
Inspection for breaks and wear (especially
hugh enlargements of chain inlet cross)
Hoisting gear brake(s)
- cleaning from abrasion
- visual inspection of condition and
discolouration due to thermic overheat
- check, that brake parts are free of lubricants
- check lining thickness (section 7.3.8) and
- inspection of air gap(s) and readjustment if
necessary (sections 7.3.3 respectively 7.3.5)
- inspect rectifier board(s) for damages and
check if eclectic connections are securely
- inspection of cables of brake coil(s) for
damages and check that eclectic
connections are securely seated
- brake test with nominal load (section 7.3.6)
- individual test of brakes if hoist is equipped
with double brake (section 7.3.7), with
nominal load for each brake
- inspection for wear and function test
(section 7.4.5)
- readjustment, if necessary (sections 7.4.2
and 7.4.4)
- The clutch of the slow speed motor has to
be tested separately for version 9.1
(sections 7.4.3 and 7.4.4)
x) = fulfilled, (-) = not fulfilled, (0) = not necessary
Hook tackle (single fall version)
- inspection of load capacity information label
- inspect casing for points of impact, cracks,
- check fastening of screw connections
- inspect rubber buffer for wear; and
- inspection of chain pocket and chain end
fastening in hook tackle
- inspection of plastic cap for wear and
existence of security screws for hook tackle
for chain 4x12 mm and 5x15 mm
- inspection of load hook for enlargements,
cracks, breaks, damages and corrosion (see
sections 5.1.4 and 7.7)
- inspection and lubrication of pressure
- inspection of hook nuts (grooved pin,
security centre punch) according to 5.1.4
- inspection of condition and function of load
hook security (rivet, tension spring, locking
pawl)
- visual inspection for condition, corrosion and
lubrication according to section 7.6.1
- inspection for wear and inspection of
wearout limit according to section 7.6.2
- inspection of chain end fastening in hoist
casing for double fall version (see item 9)
- check condition of chain bag material and
- inspection for cracks in the around of the
chain bag bail (metal frame)
- inspection of bottom plate for damages
- inspection of screw locking of suspension
- check condition and adjustment of strainer
strap for oversize chain bag (see 5.1.3.2)
Load chain / chain bag
Hook tackle / hook block / hook suspension / lift limiter
and rubber buffer
Hook block (double fall version)
- inspect rubber buffer for wear; replacement,
- inspection of chain pocket of deflexion
pulley for wear (see section 7.2)
- inspection and lubrication of bearings of
chain deflexion
section5.1.4, 5.1.5 and 7.7)
- inspection of correct installation position
(single respectively double fall version)
according to section 5.1.1.3
- inspect traverse of hook suspension for
points of impact, cracks, breaks and
- check splints of the bolts
- inspect load hook for enlargements, cracks,
breaks, damages and corrosion (see section
5.1.4 and 7.7)
Lift limiter:
- inspection of external conditions
(deformation, cracks, breaks)
- inspection of chain pocket
- inspect fastening of screw connections
- inspect proper assembly (fastened at least
on the 3 chain piece)
Rubber buffer of lift limiter
- inspection for wear and replacement, if
necessary; observe direction of installation
(see section 5.1.2.2)
Continuation - Hook tackle / hook block / hook suspension / lift limiter and rubber buffer
Security in general:
- visual inspection of the complete electric
equipment for dangers due to exposed live
parts (protection against direct contact)
- inspection of the continuous connection of
the protective conductor system by
measurement (EN 60204-32 section 19.2)
- Test of insulating resistance for all electric
circuits by measurement (EN 60204-32
section 19.3). The test of the insulation
capacity for circuits with electronic operating
resources is carried out by a residual current
Devices for switching the supply on and
- check if an electric supply or crane
disconnect switch is provided (alternatively a
plug / socket combination for hoists with a
total power consumption of < 3kW)
- inspection of marking
- check of condition and function
- check of effectiveness of all pole disconnect
- check of the electric connections that they
Electric operating resources in general:
- visual inspection of condition and fastening
Main current and control cable:
- inspection of all cables and conducts for
crushing, buckling and rubbing
- inspection of conduits, run of the cables and
- check of all cable lead-ins for condition,
tightness and function
Conductor rail system:
- inspection of contact protection for points
slip rings / slip ring bodies:
- inspection of protection against contact for
points accessible for people
- inspection of spring tension respectively of
Connectors / plug connections:
- inspection of cable lead-ins and traction
- inspection on every terminal block is electric
connection are securely seated
Terminal blocks, terminals and
interconnecting terminals:
- inspection of all connected wires for
inadmissible tension
- check of fastening of switching devices
- inspection of electrical connections
(fastening of screw connections)
- function test of all switching devices
Operating and control units:
- check of condition of rubber sleeves on
- check of fastening of control devices
Continuation - Electric equipment
- function test of all operating and control
- inspection of inadmissible tension on the
Casing of electric operating resources:
- check of marking, condition, sealing and
Fuses, protection devices:
- visual inspection of condition
- comparison of the adjustment respectively
ampere rating values with those mentioned
- function test of RCD devices
Cable chains / cable trolleys:
- inspection of cable fastening
- check of condition and function of cable
- inspection of carrier function
Control equipment / control function
- check of effectiveness of latch mechanism
after pushing operating element
- check that reset doesnt activate an
- if there are more than one devices for
activating the emergency stop: separate
function test for every device
Function of crane carriage:
- function test of crane carriage
- inspection that movement direction equals
- efficiency test of interlocking for
- check of electric switch-off at the beginning
of the operating radius
- check of electric emergency switch-off at the
beginning of the operating radius
- check of electric switch-off at the end of the
end of the operating radius
Function of trolley carriage
- function test of trolley carriage
Control devices in general:
- inspection of function marking (colour and
Protection against unauthorised usage:
- inspection if protection exists and function
Selection switch for operation modes:
- function test of all operation modes
- inspection of priority to all other control
functions (except emergency stop)
Interlocking of multiple operating stations:
- test of efficiency
- inspection of marking (yellow background,
red operating element)
- check of effectiveness of emergency stop
- inspection of upper electric emergency limit
- inspection of lower electric limit switch
- check if it is possible to lower the load when
- check of underload switch-off
Continuation - Control equipment / control function
- check of bridging function for underload
Displays/ signaling units:
- visual and functional inspection
Signals and warnings:
- check of efficiency and function
Timer, measurement and monitoring relays:
trigger values with those mentioned in the
- function test by provoking the trigger values
Other monitoring devices:
- inspection of lower electric emergency limit
- inspection of electric overload protection
Function of hoisting gear:
- function test of lifting drive unit
- inspection of upper electric limit switch
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