S-CON®MINI-Z Series
OPERATING AND SERVICE MANUAL

1

Thank you very much for purchasing our S-CON Ⓡ MINI series. To use themachine properly, please read this operating and service manual carefully before
use. Keep the manual where the machine is installed, so that it may be referred
to when needed.

TABLE OF CONTENTS
1．Caution When Handling .............................................................

4

2．Component Names .........................................................................

7

3．Assembly ..................................................................................................

8

4．Running the Conveyor .................................................................. 14
5．Taking up the Belt ............................................................................ 16
6．Belt Alignment Adjustment ....................................................... 17
7．Pulley Removal ..................................................................................... 20
8．Belt Replacement ............................................................................... 21
9．Motor Replacement .......................................................................... 22
10．Drive Unit Relocation ........................................................................ 22
11．Roller-edge/Knife-edge Models ............................................... 23
12．Telescopic Model................................................................................... 27
13．Tilt Models ................................................................................................. 28
14．Inspection and Maintenance ...................................................... 29
For the following models, refer to separate operating and service manuals:
S-CON®MINI Series (SC, SMH model, etc.)
S-CON®MINI CURVE (SMBM model)
S-CON®MINI FLEX (SMFX model)
S-CON®MINI FLOW-BEL (SMF model)

2Upon delivery of this product, please check the package contents to ensure theproduct matches your order. If the delivered items do not match your order, pleasecontact our local agent directly before use.
Manufacturer’s serial number(Refer to this number when contacting us)[Example]
Date of production 20□□.□□JOB № □□－□□□□□－□□□－□□
SZ30-1.5C（K40-1A15.3）R-BG
Serial number and model label(affixed to side of drive unit)i = 1/18 ，M = 11 P = 13
Reduction
gear ratio

Number of sprocket or
timing-pulley teeth

40 –

SZ

30 –

1.5

C （ K

①

②

③

④

⑤

⑥

1

A15.3

⑦

⑧

） R

–

BG

⑨

⑩

①Conveyor model code
②Nominal belt width in cm (eg 30cm)③Machine length in m (eg 1.5m)④Drive type (eg Center drive (Standard-axial motor))
Drive type

CodeStandard-axial motor

C

Vertical-axial motorW⑦Power source type (eg 100V single-phase)⑤Motor type (eg Constant speed)Motor type

Code

Constant speed

K

Inverter variable speed

A

Brushless-inverter variable speed

B

Power source type

Code

100V single-phase

1

200V single-phase

2

200V three-phase

3

other

0

⑧Power source frequency and Belt speed(eg 50Hz 15.3m/min)
NOTE: For variable speed, maximum speed is shown.

⑥Motor output (eg 40W)
Motor output

Code

40W

40

90W

90

120W

12

Frequency

Code

50Hz

A

60Hz

B

⑨Switch position and Direction of belt travel(eg Right, Normal direction)
Switch position

Direction

Code

Right

Normaldirection

R

Reversedirection

RB

Left
Right
Left

L
LB

⑩Belt specification
Code

BG

BW

IG

IW

Specification

Standard

InclineColor
CodeSpecification
Color

Green
White
OG
OW
Oil resistant
Green
White

Green
White
KW
KB
Antibacterial
White
Blue

RG
Specialrubber for
inclines
Green
XG
Green

EK
Ultra
anti-static
Black
XW

SG

SW

HW
HeatresistantSliding

Green
XB
Other
White
Blue

White
XX

White
NO
None
－

Other

3

1

CAUTION WHEN HANDLINGFOR YOUR SAFE USAGE

A. Prior To Use

CAUTION : Improper handling of the conveyor may result in physical injury or damage!
■Transport and assembly
When transporting and assembling the conveyor, pay special attention not to drop it in order toavoid physical injury or damage. When lifting by crane, pay attention to the balance of the conveyor.
■Earth and leakage breaker
Ensure the conveyor is connected to earth at all times to prevent electric shock. Also ensure thatan earth leakage breaker is connected to the power supply.
■Emergency stop
Install an emergency stop device to immediately stop the conveyor in emergency.
■Start alarm
If it is not possible to supervise the operation of the full length of the conveyor from the operating
position, install a start alarm for increased safety.
■Keep the conveyor dry at all times
Do NOT use the conveyor in wet or humid areas. Do NOT splash liquids onto the conveyor. Do
NOT use or leave the conveyor outdoors. The machine is not waterproof. Do NOT touch electricalparts with wet hands.
■Do NOT use in an explosive atmosphere(Avoid explosive gas, explosive dust, etc.)□ When using in a high or inclined position:■Lower cover and guard
Install the optional lower cover or guard in order to prevent entry under the conveyor.
■Guide rail, top and side covers
To prevent objects from falling off the conveyor, install the optional guide rail, top and/or side
covers.
■Braking system
When using the conveyor on an incline, it is recommended that an optional braking system beinstalled, in order to prevent reverse or other incorrect running of the conveyor.
■Environmental conditions
Ambient temperature：0℃ to +40℃
Ambient humidity：RH 90% max(Avoid condensation)
Atmosphere：Indoor(Avoid corrosive gases, dust, etc.)
Elevation：1,000m or less
NOTE：
●Using the conveyor in a strong electric field (eg near broadcasting devices or high- frequency welding
machinery/equipment) could cause the conveyor to malfunction. In this case, install the conveyor at a
sufficient distance. Alternatively shield completely to avoid any interference with the conveyor.
●Using an inverter to this machine could cause other machines to get effects of high-frequency. In thiscase, install the conveyor at a sufficient distance or shield completely.

4

B. During Operation

WARNING：Improper handling of the conveyor could result in serious physical injury or damage!
■Do NOT touch the conveyor when it is running
There is considerable risk of being caught and injured by the conveyor.
■Do NOT ride on or climb on the conveyor／Do NOT go under the conveyor
There is considerable risk of falling or being caught and injured by the conveyor.

CAUTION：Improper handling of the conveyor may result in physical injury or damage!
■Beware of entanglement
When working close to the conveyor, take care not to get caught in the conveyor. There isconsiderable risk of being injured by the conveyor.
■Do NOT remove safety covers
There is a risk of getting caught in the rotating parts such as pulleys. Only remove in case ofmaintenance or inspection.
■Do NOT start the conveyor while it is loaded
The motor may become damaged due to overload. Additionally, the motors of variable-speed type
machines may burn out as a result of running at excessively low speeds forlong periods. Use the conveyor within the specifications, indicated in the instructions for use, andin the catalogue.
■Do NOT apply force to ends of conveyor
Do NOT press down on, or hang off the sides of the conveyor. Injury may result from a toppling
conveyor.
■Secure the conveyor to the floor/ground
When using the conveyor, be sure to secure it to the floor/ground with anchor bolts etc. toprevent it from toppling irrespective of indoor use or outdoor use.

C. After Use

CAUTION：Improper handling of the conveyor may result in physical injury or damage!
■Switch off the power after use
Ensure that the power is switched off when carrying out relocation, inspection, cleaning, etc. of
the conveyor, otherwise there is a risk that the conveyor could start unexpectedly. When leaving
the conveyor unused for a long period, take plug out of the outlet /connector to prevent electric
shock or leakage.

NOTE：1. Always use in accordance with the Occupational Safety and Health Act.
2. If the owner modifies the conveyor, any ill effects will fall outside the conditions of the guarantee.

5

■WARNING LABELS etc. AND ATTACHMENT POSITIONS
For standard machines, warning labels etc. and their attachment positions are as follows:
1. WARNING LABELS
LabelLabel classification

CAUTIONorWARNING

CA-2

Instruction■ALWAYS CONNECT TO EARTH
Ensure the conveyor is connected to earth at all
times to prevent electric shock.
■DISCONNECT POWER BEFORE SERVICING
Ensure that the power is switched off when carrying out
relocation, inspection, cleaning, etc. of the conveyor,
otherwise there is a risk that conveyor may start
unexpectedly.

CF-2■DO NOT GET CAUGHT IN MACHINE
When working close to the conveyor, take care not to getcaught in it. There is a risk of being injured by the conveyor.

CG-2■DO NOT GET CAUGHT IN MACHINE
When working close to the conveyor, take care not to getcaught in it. There is a risk of being injured by theconveyor.
■DO NOT OPERATE WITHOUT GUARDS IN PLACEDo NOT remove safety covers etc. There is a risk of gettingcaught in the rotating parts such as pulleys. Only remove incase of maintenance, inspection, etc. unexpectedly.

2. ATTACHMENT POSITIONS OF WARNING LABELS etc.
(eg S-CON®MINI SZ model)

6

2

COMPONENT NAMESApplied models:Frame depth
30mm
60mm

Model code
SZ，SZV，SZE，SZEVSHZ，SHZV，SHZH，SHZHV，
SHZM，SHZVM

NOTE: For roller-edge/knife-edge models, see p.23-26.
NOTE: For telescopic model, see p.27.
NOTE: For tilt models, see p.28.

7

3

ASSEMBLY

3-1. INSTALLING STANDS AND RETURN ROLLERS
1. Place conveyor frame upside down on table. (Assembly is easier this way.)
2. Install control unit delivered in separate packaging.
3. If return rollers are delivered in separate packaging, stickers RETURN ROLLER FIXING POSITION are
2. affixed on side of frame. Return roller attachment tap pieces are temporarily bolted into frame
2. underside slots, just under the stickers. Install return rollers using the tap pieces as shown in figures
2. below. (Return rollers are individually packed and temporarily attached beside drive unit.)
NOTE: 1. For center drive type of 2m or less in length, machine has no return roller.
2. In the following cases, return rollers are delivered already installed as shown in fig. 1, i.e.
installation is unnecessary.
-3m or less in machine length and 60mm in frame depth-3m or less in machine length, 30mm in frame depth and 300mm or less in belt width

4. Stands(optional) are delivered in separate packaging. Install them using the attached stand tap pieces.
NOTE: 1. Install each stand in appropriate position referring to “Standard Installation Positions of
NOTE: 1. Stands”, p.9.
NOTE: 2. For machine length of 1.2m or less, stand tap pieces are delivered inserted into conveyor frame.

Installation will become easier by inserting
and tightening bolt into end of tap piece.

5. When assembly is completed, turn over the entire conveyor and place on the floor.
6. Adjust conveyor height following “Stand Height Adjustment”on next page. Confirm full
6. length of frame is straight and level on top, and firmly tighten stand bolts and nuts.

8

■ Stand Height Adjustment
NOTE: When adjusting stand heights, take care not to pinch fingers. To prevent conveyor main body
NOTE: from rapidlygoing down, loosen fixing bolts little by little while supporting conveyor with the other
NOTE: hand.
Before starting adjustment, ensure tapered grooves(*1, *2)
and fixing bolts(*3, *4) are positioned correctly as shownin figure, right. To lower stand upper post(*5), loosen
fixing bolt(*3). If tapered groove(*1) entirely goes down
into stand lower post(*6) while lowering upper post(*5),
tighten fixing bolt(*4) into tapered groove(*2). For moreadjustment, loosen fixing bolt(*4) again. Once adjustment
is completed, tighten fixing bolts(*3, *4). To finely adjust
conveyor level, use level adjusters beneath stand.
NOTE: For belt top height of 550mm or less, stand does
NOTE: not have tapered groove(*2).

■ Standard Installation Positions of Stands
Considering frame depth and strength, installation positions of stands are determined as follows.
Unit：mmStandard
installationinterval
P1
P2
P3
P4

Frame depth
30

60

400
(105 min.)
400(105 min.)1200 or less2000 or less

400
(105 min.)700(105 min.)2450 or less3000 or less3-2. ASSEMBLING LONGER MACHINES
When conveyor exceeds 3m in length, it is delivered packed as shown below. Assemble conveyor
following the procedures in the tables. (*Return rollers are individually packed and temporarily attachedbeside drive unit.)
PACKAGING

Machine length: 3.01-6.0m

Divided into 2 sections

Belt width of 300mm or less:1 package

Frame joint
Belt* Return roller

Drive unit

(temporarily attached)
Belt width of 350mm or more:

2 packages

Frame joint

Head frame

Tail frame
Belt*Return roller(temporarily attached)

9

PACKAGING

Machine length: 6.01-9.0m
2 packages

Divided into 3 sections

9.01-12.0m

Divided into 4 sections

For machine length of 6.01m or more, intermediate take-up unit is provided onhead frame.

Frame joint

Head frame

Tail frame andintermediate frame* Return rollerBelt(temporarily attached)Intermediate take-up unit
ASSEMBLY
METHOD

Machine length: 3.01-6.0m

Divided into 2 sections

1. Loosen
belt.

Loosen belt by turning take-up knobs clockwise.

2.
Assemble
main
body.

Machine length: 6.01-9.0m

Divided into 3 sections

Machine length: 3.01-6.0m

Divided into 2 sections

9.01-12.0m

Divided into 4 sections(1) Unfold belt. Check installation positions of frames.
(2) Join frames. → See “Joining Frames”, p.11-12.
Machine length: 6.01-9.0m

10Divided into 3 sections

9.01-12.0m

Divided into 4 sections

3. Install
standsandreturnrollers.

(3) Move tap pieces to installation positions of stands and return rollers. Fix them temporarily and install
stands and return rollers. → See p.8-9.

(4) When assembly is completed, take up belt slack (ref. p.16) and adjust belt alignment (ref. p.17-19).
NOTE: If, as a result of machine length, it is difficult to turn over the entire assembly, first assemble andturn over in sections, and then join frames.

Lengths of divided frame

Unit：mDivided into 2 sections
MACHINELENGTH

Component※

Divided into 3 sections
MACHINELENGTH

Component※

Divided into 4 sections
MACHINELENGTH

Component※～3.5（1.5）＋2.0～6.5（2.0）＋1.5＋3.0～9.5（2.5）＋2.0＋2.0＋3.0～4.0（2.0）＋2.0～7.0（2.0）＋2.0＋3.0～10.0（3.0）＋2.0＋2.0＋3.0～4.5（2.0）＋2.5～7.5（2.5）＋2.0＋3.0～10.5（3.0）＋2.5＋2.0＋3.0～5.0（2.5）＋2.5～8.0（3.0）＋2.0＋3.0～11.0（3.0）＋3.0＋2.0＋3.0～5.5（2.5）＋3.0～8.5（3.0）＋2.5＋3.0～11.5（3.0）＋3.0＋2.5＋3.0～6.0（3.0）＋3.0～9.0（3.0）＋3.0＋3.0～12.0（3.0）＋3.0＋3.0＋3.0※Lengths in parentheses ( ) are variable according to actual machine length.

■ Joining Frames
Frame joints are temporarily tightened to one side of frame. Correctly attach them using a hexagonal
wrench as shown below:

11

■ Caution When Joining Frames and Setting up Conveyor
1. Install full length of frame straight, not bent in any place.
2. Finely adjust conveyor level. (Use level adjusters beneath stands.)
NOTE: If conveyor is bent or not level on ￥top, belt may stray to one side or the other.

123-4. INSTALLING GUIDE RAILS AND SKIRTS (OPTIONAL)
1. Installing Guide Rails
When installing, slightly raise guide rails, giving clearance to prevent belt from touching them. If there is noclearance, it may cause friction damage to belt and guide rails when belt deviates.
2. Installing Skirts
When installing, ensure skirts are properly touching belt.
If belt deviates, to prevent friction damage of belt and skirt fitting pieces, reinstall skirt fitting pieces raised as
required.

S-A1 model, fixed type
S-A1 model, fixed
type
14

35 35

14

Skirt
Skirt

■ Insertion of Nuts
When installing additional attachments to frame, insert M6 hexagonal thin nuts into frame slots, as shown infigures, below.
NOTE: These nuts are delivered as spare parts in tool bag.

M6 hexagonal thin nut(1) Insert nut into slot diagonally fromabove.
(2) Insert something cylindrical andpointed (eg tip of mechanicalpencil) into nut hole, and lightly
push nut upward.

(3) Continue pushing nut this way untilin position.

13

4

RUNNING THE CONVEYOR

4-1. BE SURE TO GROUND MACHINE BEFORE OPERATION
100V single-phase power source ：Ground earth terminal (green) of power cable plug.
200V single-phase power source ：Connect earth terminal (green) of power cable to power cable plugwith an earth.
200V three-phase power source ：Standard machine has only lead wire terminal. For constant-speed
type, switch etc. are not provided. When wiring, properly provide anearth on motor or drive side plate.
● Power cable and terminals

Earth (green)

AC 100V single-phase

AC 200V single-phase
Earth (green sleeve)
Power (red sleeve)

Power cable plug

4-2. STARTING CONVEYOR
1. MITSUBISHI-inverter variable-speed typeFor standard machines of variable-speed type, speed is changed by inverter. Operate inverter as follows:
1. Turn on power supply and ensure that EXT indicator(*1) is illuminated. Then press PU/EXT key(*2)
and ensure PU indicator(*3) is illuminated. (PU operation mode)
2. To start conveyor, press RUN key(*4); to stop conveyor, press STOP/RESET key(*5).
3. To set speed, turn M-dial(*6) until the monitor(*8) shows intended frequency. Then press SET key(*7).
(Only turning M-dial does not change speed. To complete speed setting, be sure to press SET key.)
4. It is possible to change direction of belt travel or make external control by setting parameter. For
details, refer to inverter instruction manual, appendix.

fig. Inverter operating panel
RUN key (*4)
PU indicator (*3)

EXT indicator (*1)
STOP/RESET key (*5)
M-dial (*6)

PU/EXT key (*2)
SET key (*7)

MODE key

14

MITSUBISHI inverter FREQROL D700 standard specifications
Applied motor
40・90W
Rated output voltage
AC 200V three-phase
Power source voltage
Type 710W: AC 100V single-phase
720S : AC 200V single-phase
720 : AC 200V three-phase
Permissible voltage variation
100V: 90-132V
200V: 170-264V
Power source frequency
50/60Hz ±5％
Environmental Temperature -10℃ to +40℃ (Avoid freezing)conditions
Humidity
RH 90% or less (Avoid condensation)
Atmosphere
Indoor, no corrosive/flammable gases,no oil mist or dust
Elevation
1,000 m or less above sea level
Vibration
5.9 m/s2 or less

■ Caution When Using Inverter

CAUTION

1. Be sure to confirm that the power source voltage is within the rated voltage
range, before switching ON the power source. (Voltage exceeding the rated
voltage could cause fuming, abnormal noise, etc.)
2. Be sure to start and stop the conveyor with RUN/STOP switch. When startingand stopping the conveyor frequently in a short period (tact operation etc.), it is
impossible to start/stop the machine by turning on/off the power supply. In thiscase be sure to start and stop the machine by external signals. (Inverter
variable-speed type is different from speed controller’s, and the power supply
will trip.) Do not start and stop the conveyor excessively frequently. It may cause
machine failure or shorten its service life.
3. The RUN/STOP switch of inverter unit is not for turning the power on and off.
When leaving the conveyor unused for a long period, make sure that the mains
is off.
4. Do not run the conveyor at excessively low speed for a long period, or start andstop the conveyor excessively frequently. These may cause machine failure or
shorten its service life.
5. Do not touch the inverter radiator of side of inverter unit, and do not allow any
material to touch it, because of its high temperature.
6. Use the inverter unit within the permissible range of ambient temperature (from–10℃ to ＋40℃). Avoid freezing.
7. Pay special attention not to allow any foreign matter (dust, iron powder, etc.) to
get into the inverter unit.
8. Operating the motor using the inverter could cause noises from the inverter I/O
cables, motor, etc. Keep in mind that these could interfere with the correct
operation of other electronic devices. (In this case, noises and their effects canbe suppressed to some extent by providing the inverter I/O with a filter orotherwise shielding the power cable.)15

5

TAKING UP THE BELT

When belt is slackened off, take up belt as follows:
To take up belt, turn right and left take-up knobs(*1)
of drive unit counterclockwise. When turning take-up
knobs(*1), adjust them alternately, little by little, tokeep their movement lengths the same. Whenadjusting take-up knobs(*1), make sure the conveyor
is stopped.

■ Belt Tension
Do not take up belt too much, but only to extent thatbelt does not slip on drive pulley, i.e. enough to drive belt.
NOTE: Excessive belt take-up may overload motoror shorten service lives of belt, pulley, etc.

Standard belt expansion percentage
Nominal belt
width (mm)Expansion
percentage (%)～400
500～600

0.2
0.15～0.1

600～1,000 orMotor power of
0.2kW or more

0.1

How to calculate belt expansion percentage
1) Slacken belt.
2) Mark any two points on belt surface and measure length between them (ℓ).
3) Take up belt.
4) Measure length between two marks (ℓ1) again.
egℓ = 1000 mmℓ1= 1002 mm
Belt expansion percentage = 0.2 %■ Adjustment Using Intermediate Take-up Unit(for longer machines exceeding 6m in length)(1) Fully loosen take-up knobs(*1) of drive unit. (Turn them clockwise.)(2) Take up belt by turning take-up knobs(*2) of intermediate take-up unit counterclockwise. When(2) turning take-up knobs(*2), adjust them alternately, little by little, to keep their movement lengths the(2) same.
(3) To completely remove belt slack, turn take-up knobs(*1) of drive unit counterclockwise. Also adjust(2) belt alignment while turning take-up knobs(*1).

16

6BELT ALIGNMENT ADJUSTMENT

When belt is not correctly aligned, make adjustments as follows:

6-1. PRIOR CHECKING
1. Frame Condition
Confirm full length of frame is level on top, straight and not bent in any place. → See p. 12.

2. Positions of Drive Side Plates
Confirm that right and left drive side plates are symmetrically positioned. → See p. 22.
NOTE: If drive side plates are not positioned equally onright and left sides, it may cause belt deviation.
Be sure to check their positions before using
conveyor because side plates may have shiftedout of position in transit.

3. Dirt on Pulleys
Check drive pulley, head and tail pulleys, etc. for dirt. Remove any dirt and clean. (Remove drive
lower cover to check.)
4. Loading Condition
Improper loading, i.e. not-centered, may cause belt deviation.
5. Dislodgment of V-form Strip
Correct condition
For non-deviation models(SZV, SHZV model, etc.), check if V-form strip on
belt undersurface has dislodged from V-form belt guidance grooves onpulleys and rollers. (For center drive type, remove drive lower cover to check.)
Dislodgment

Pulley of non-deviation model

6. Belt Deviation
Check how belt is deviating before adjustment. Correct positions of the following parts whilerunning conveyor slowly, and then continue running it for a while to check any further belt
deviation.
-Take-up devices: Position and adjust them equally on right and left sides.
-Head and tail pulleys: Set at right angle to frame.

176-2. BELT ALIGNMENT ADJUSTMENT

Outline of belt alignment adjustment
When moving belt in direction of arrow, adjust each part as shown in figure below.
(To move belt in opposite direction of arrow, adjust each part oppositely to that shown below.)

NOTE: It is necessary to wait until belt running stabilizes after each adjustment step and to adjust beltalignment little by little. Belt running will not change immediately.
1. Adjustment Using Take-up Knob
On side to which belt is deviating, turn take-up knob(*1) clockwise. Belt will then center itself.
Alternatively adjust on opposite side. In this case turn take-up knob(*1) counterclockwise.
NOTE: When drive unit is attached closer to conveyor tail rather than to conveyor center, turn take-up
NOTE: knobs in opposite directions to those shown in figure, right.

2. Adjustment Using Head or Tail Pulley
On side to which belt is deviating, slightly turn adjustment screw(*2) clockwise. Head (or tail) pulley willthen move outward on this side and belt will center itself. Alternatively, on opposite side, if there is aspace between frame end and pulley bracket, make adjustment on this side. In this case slightly turn
adjustment screw(*2) counterclockwise to move head (or tail) pulley inward.

18

3. Adjustment Using Return Roller (if any return rollers are attached)
On one side, loosen return roller bracket(*3) attachment bolt(*4), and set return roller slightly diagonally.
Belt will then move to form right angle to return roller rotation axis.
NOTE: It is effective to adjust the closest return roller to tail pulley. (The closest return roller to tail pulley
NOTE: alternates depending on direction of belt travel as shown in figure below.)

4. Adjustment Using Snub Pulley
On opposite side of drive unit chain, remove cover-L(*3) by loosening attachment screws(*4). Then snub
pulley adjustment bolt(*1) is found inside. To adjust belt alignment, loosen nut(*2) and turn adjustmentbolt(*1). Once adjustment is completed, retighten nut(*2) and reinstall cover-L (*3) with attachment
screws(*4). (For adjustment using snub pulley of intermediate take-up unit, perform similarly.)

5. Adjustment for Reversible Operation
First run belt in normal direction and make adjustments so that belt will center approximately. Next
reverse running direction and make adjustments according to direction of belt deviation as follows:-When belt deviates to the same side in both normal and reverse operations: Make fine adjustments sothat belt will center.
-When belt deviates to the opposite side in reverse operation: First make adjustments so that belt will
center. Taking into account normal directional operation, slightly move belt back to side of deviation.
NOTE: 1. For reversible operation, it usually takes a long time to adjust belt alignment. Additionally it is
NOTE: 1. required to cut off belt deviation margin thus reducing belt width.
NOTE: 2. It is difficult to make adjustments when belt width is as long as, or longer than machine length.
For reversible operation, it is recommended to choose non-deviation models (eg SZV, SHZV models).

19

7

PULLEY REMOVAL

1. Head (or Tail) Pulley Removal■ For Frame Depth of 30mm
Loosen pulley retaining block fixing bolts(*2) on tops of pulley brackets(*1) with hexagonal wrench.
Remove pulley retaining blocks(*3) upwards. Pulley may then be removed upwards.
■ For Frame Depth of 60mm
Loosen pulley retaining block fixing bolts(*5) on tops of pulley brackets(*4) with hexagonal wrench.
Remove pulley retaining blocks(*6) upwards. Pulley may then be removed upwards.

2. Snub Pulley Removal(1) For re-assembly, mark initial position of take-up pulley on frame. Then fully loosen take-up pulley by(1) turning take-up knobs(*11).
(2) Remove either head or tail pulley.
(3) Remove safety cover(*7)(with 2 attachment bolts).
(4) Remove snub pulley bracket(*8)(with 1 attachment bolt).
(5) For machine of 3.1m or more in length, remove snub pulley retaining plate(*9)(with 1 attachment(1) bolt) attached on chain side.
NOTE: Do not loosen snub pulley adjustment bolt(*12).
3. Take-up Pulley Removal(1) For re-assembly, mark initial position of take-up pulley on frame. Then fully loosen take-up pulley by(1) turning take-up knobs(*11).
(2) Remove either head or tail pulley.
(3) Turn take-up block(*10) outward and remove take-up pulley.

20

8

BELT REPLACEMENT

Replace belt following procedures below:
1. Remove stands from conveyor. (If difficult, on opposite side of drive unit chain, remove all the stand
1. attachment bolts.)
2. Remove all the return rollers, if any.
3. Remove take-up pulley. →See p.20.
4. Remove cover-L(*2) on opposite side of chain.
5. On the same side, remove drive unit side plate-L as follows:(1) For correct re-assembly, mark initial position of drive unit side plate-L on frame.
(2) Slide right and left clips(*1) outward, and remove bottom cover(*3).
(3) Remove the following bolts from drive unit side plate-L:-Drive unit attachment bolts(*4)(4 bolts)-Brace (SZ) attachment bolts(*5)(2 bolts)-Drive pulley bearing attachment bolts(*6)(2 bolts)-Brace attachment bolts(*7)(2 bolts)-Snub pulley bracket attachment bolt(*8)(1 bolt)(4) Remove snub pulley bracket and drive unit side plate-L.
NOTE: Do not change snub pulley adjustment bolt(*9) condition.
6. Remove head (or tail) pulley from frame end. →See p.20.
7. Remove belt sideways and install replacement belt.
NOTE: In advance, check replacement belt for length, straightness, etc. When installing, pay attention to
NOTE: direction of belt travel.
8. Reinstall parts in reverse order. Take up belt and adjust belt alignment.

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9

MOTOR REPLACEMENT

Replace motor following procedure below:
1. Remove cover-R(*1) and bottom cover(*2).
2. Remove motor side sprocket(*3) and roller chain(*4).
3. Loosen motor base attachment bolts(*5)(4 bolts), and remove motor with motor base.
NOTE: For vertical-axial motor type machine of 100mm in belt width, also remove side plate-L(*6).
→See p.21.
4. Remove motor and gear head attachment bolts(4 bolts), and replace motor and gear head.
5. Reinstall parts in reverse order. Properly adjust roller chain tension.

10

DRIVE UNIT RELOCATION

It is possible to move drive unit(*1) along frame(*2). If necessary, relocate drive unit as follows:
1. On right and left drive unit covers, mark initial position(L1) of take-up pulley. To loosen belt, turn take1. up knobs(*3) clockwise.
2. Loosen bolts(2 bolts on each side) and remove right and left drive unit covers.
3. Loosen drive unit attachment bolts(*4)(4 bolts on each side).
4. Move drive unit to intended position. On right and left sides of conveyor, measure length(L2) to ensure
1. drive unit side plates are positioned equally on both sides. Then retighten drive unit attachment
1. bolts(*4).
5. Reinstall drive unit covers. Turn take-up knobs(*3) until take-up pulley returns in initial position(L1), i.e.
1. take up belt slack properly. Then adjust belt alignment.

22

11

ROLLER-EDGE/KNIFE-EDGE MODELS

11-1. COMPONENT NAMESApplied models:Type
Roller-edge

Frame
depth
30mm
60mｍ

Knife-edge

Model
code
SZB

Figure
code
A

SZBV

B

SHZB

C

SHZBV

D

30ｍｍ

SZKK

E

60ｍｍ

SHZKK

F

Roller-edge Unit1

Knife-edge Unit1

Knife-edge

Knife-edge

2311-2. ROLLER-EDGE MODELS
1. Taking up the Belt
When belt is slackened off, take up belt by turning take-up knobs of drive unit. → For details, see p.16.
■ Belt Tension
Do not take up belt too much, but only to extent that belt does not slip on drive pulley, i.e. enough todrive belt.
NOTE: Excessive belt take-up may overload motor or shorten service lives of belt, pulley, etc.

2. Belt Alignment Adjustment
When belt is not correctly aligned, make adjustment as follows while running conveyor slowly.
For prior checking and adjustments except in roller-edge unit, see p.17-19.
■ Adjustment Using Snub Pulley of Roller-edge Unit
Snub pulley(*1) is found in lower part of roller-edge unit, as shown in figures on next page. On side towhich belt is deviating, slightly loosen snub pulley fixing bolt(*2) with hexagonal wrench. Turn snub pulleyadjustment bolt(*3)(M5) counterclockwise with spanner. Snub pulley will then move outward on this sideand belt will center itself. Alternatively adjust on opposite side. In this case turn snub pulley adjustmentbolt(*3) clockwise. Snub pulley will then move inward on this side and belt will center itself. Onceadjustment is completed, retighten snub pulley fixing bolt(*2).

NOTE: 1. SHZBV model has no snub pulley fixing bolts, i.e. snub pulley can be moved only by turning
NOTE: 1. adjustment bolt(*3).
NOTE: 2. It is impossible to make adjustment by moving edge roller only.

24

3. Removal of Snub Pulley and Edge Roller (for roller-edge models)
Fully loosen belt and perform as follows:
NOTE: To loosen belt, refer to “5. TAKING UP THE BELT” on p.16 and adjust each part in opposite
NOTE: direction.
(1) Snub Pulley RemovalFirst remove right and left snub pulley fixing bolts(*1) with a hexagonal wrench. (→See figures on next
page.) Then remove each part following the procedures below, according to frame depth and machinemodel. Snub pulley may then be removed.
■ For frame depth of 30mm
SZB model: On both sides of conveyor, remove attachment screws(*4) and head-tail covers(*5).
SZBV model: Remove the entire roller edge unit from frame. Remove edge roller, and then remove snub
SZBV model: pulley. → See “(2) Edge Roller Removal” below.
■ For frame depth of 60mm
SHZB, SHZBV model: Remove snub pulley bracket attachment bolts(*6)(2 bolts on each side). ThenSHZB, SHZBV model: remove snub pulley together with brackets(*7).
(2) Edge Roller Removal
1) Loosen right and left fixing screws(*8) with a hexagonal wrench. (→See figures on next page.)
1) Pull the entire roller edge unit together with roller support blocks(*9) out of frame.
2) Remove edge roller bracket (or edge roller cover) attachment bolts(*10)(2 bolts on each side) with a2) hexagonal wrench. Then remove edge roller together with brackets(or covers)(*11). (It is unnecessary2) to remove brace attachment bolts(*12) etc.) If intermediate bearing(*13) is attached as shown in2) figure below, remove it also.

25

11-3. KNIFE-EDGE MODELS
1. Taking up the Belt
When belt is slackened off, take up belt by turning take-up knobs of drive unit. → For details, see p.16.
■ Belt Tension
Do not take up belt too much, but only to extent that belt does not slip on drive pulley, i.e. enough todrive belt.
NOTE: Excessive belt take-up may overload motor or shorten service lives of belt, pulley, etc.

2. Belt Alignment Adjustment
When belt is not correctly aligned, make adjustment as follows while running conveyor slowly.
For prior checking and adjustments, see p.17-19.

26

12

TELESCOPIC MODEL (SZVT model)

12-1. COMPONENT NAMESNOTE: For assembly and operation, see p.8-15.

12-2. CHANGING MACHINE LENGTH
Be sure to switch off power supply and change machine length as follows:
1. Loosen right and left extension lock knobs(*1) under fixed frame.
2. Hold end of telescopic frame(*2) with your hands, and change machine length by sliding telescopic
2. frame(*2) out-of/into fixed frame.
3. Once machine length is adjusted, retighten extension lock knobs(*1) to fix telescopic frame(*2).
NOTE: Slide telescopic frame(*2) parallel to fixed frame.

12-3. TAKING UP THE BELT
When belt is slackened off, take up belt as follows:
Take up belt by turning right and left take-up knobs(*3) of drive unit counterclockwise. When turning
take-up knobs(*3), adjust them alternately, little by little, to keep their movement lengths the same.
For belt tension, see p.16.

12-4. BELT ALIGNMENT ADJUSTMENT
When belt is not correctly aligned, make adjustment as follows:
For prior checking and outline of adjustment, see p.17-18.
Adjustment Using Take-up Knob or Tail Pulley, see p.18.

27

13

TILT MODELS

13-1. COMPONENT NAMESApplied models:Frame depth

Model code

30mm

SZS，SZSV

60mm

SHZS，SHZSV

13-2. TILT ANGLE ADJUSTMENT
Be sure to switch off power supply and adjust tilt angle as follows:
1. On both sides of conveyor, loosen tilt fixing nuts(*1)(M8, 2 nuts on each side) with a spanner. Hold
1. head tilt frame(*2) with your hand, and set it at intended angle.
2. To fix the tilt angle, retighten all the tilt fixing nuts(*1).
NOTE: 1. Before retightening tilt fixing nuts(*1), make sure that these are equally adjusted on both sides
NOTE: 1. of conveyor.
NOTE: 2. If setting at a larger angle, slightly loosen belt with take-up device before angle adjustment.
NOTE: 1. After fixing the tilt angle, take up belt slack.
For assembly, operation and belt take-up, see p.8-15.

13-3. BELT ALIGNMENT ADJUSTMENT
When belt is not correctly aligned, make adjustment as follows.
For prior checking and adjustments except in tilt unit, see p.17-19.
Adjustment Using Bend Pulley of Tilt Unit
When belt is deviating in tilt unit, on side to which belt is deviating,slightly move bend pulley outward on this side by turning
adjustment screw(*2). Belt will then center itself. Alternatively,on opposite side, if there is a space between pulley bracket andframe end, make adjustment on this side. In this case slightly
move bend pulley inward by turning adjustment screw(*2).
■ Bend Pulley Removal
Loosen fixing bolts(*3) of pulley retaining blocks(*4) with hexagonal wrench. Remove pulley retaining
blocks(*4) upwards, and then remove bend pulley upwards.

28

14

INSPECTION AND MAINTENANCE

14-1. PROBLEMS AND REMEDIESPROBLEM
1. Conveyor does
not run whenswitched on.

2. Conveyor isturned on, but
motor will notrun.

3. Motor runs,
but belt does notmove.

4. Belt runs, but
speed cannot bechanged.
(in case ofvariable-speed
type)
5. Conveyor will
not start running
unless belt ispulled.

6. Belt is notcorrectly aligned.
7. Conveyor
makes abnormal
noise.

8. Motor has
becomedamaged.

9. Electric shockis received fromconveyor.

CAUSE(1) Power plug is not properly
connected to mains.
(2) Power switch is not turned on.
(Reverse switch remains halfway.)(3) Inappropriate power source(1) Disconnection or breakage in wiring(2) Speed control is set at zero.

REMEDY(1) Inspection, correction(2) Inspection, correction(3) Circuit protector or emergency stop
switch has been activated.
(4) Failure of motor(3) Check power source. → See p.14.
(1) Inspection, repair(2) Reset to appropriate speed. → See
p.14-15.
(3) Restore protection circuit or emergency
stop switch.
(4) Replacement(5) Failure of controller(1) Belt is slacked off.
(2) Chain has come off.
(3) Belt is trapped after misalignment.
(4) Motor gear head teeth havebecome worn.

(5) Replacement(1) Take up belt. → See p.16.
(2) Repair(3) Adjust belt alignment. → See p.17-19.
(4) Replacement (Replace motor also.)→ See p.26.

(1) Disconnection or breakage in wiringof motor and controller(2) Failure of speed changing device
inside motor(3) Failure of controller(1) Inspection, repair(1) Belt has been taken up too much.
(2) Belt has something sticky onundersurface.

(1) Loosen belt to proper tension. → See p.16.
(2) Remove any foreign matter and clean
belt undersurface, or replace motor withhigher capacity version.
(3) Replace belt, or replace motor withhigher capacity version.

(3) Belt has excessive resistance towinding.
(Incorrect belt has been chosen.)－(1) Drive pulley bearing setting bolt(s)has become loose.
(2) Sprocket setting bolt(s) has
become loose.
(3) Chain has become slack.
(1) Inappropriate power source(2) Conveyor has been overloaded.
(3) Conveyor runs too quickly or too
slowly.
(4) Belt has been taken up too much.
(5) Belt is trapped after misalignment.
(1) Static electricity has been charged
in frames.
(2) Electric leakage(2) Replace motor and controller.
(3) Replace motor and controller.

(1) Adjust belt alignment. → See p.17-19.
(1) Tighten setting bolt(s).
(2) Tighten setting bolt(s).
(3) Take up or replace chain.
(1) Check power source. → See p.14.
(2) Reduce load.
(3) Set at proper speed, or replace gearhead.
(4) Loosen belt to proper tension. → See p.16.
(5) Adjust belt alignment. → See p.17-19.
(1) Properly ground the machine.
→ See p.14.
(2) Inspection, investigation29

14-2. ITEMS FOR REGULAR INSPECTIONCHECKINGPERIOD
Daily

PART TO
CHECK
Belt

PART TO CHECKPART TOCHECK

Foreign substances on

Visual inspection

Visual inspection

Visual inspection

Inspection, adjustment

Getting caught

Visual inspection

Inspection, adjustment

Foreign substances

Visual inspection

Clean and remove foreign

REMEDYsurface and undersurface
Dislodgment from V-form
belt guidance grooves

Drive pulley andother pulleys
Monthly

Drive chain

Visual inspection

Take up slack.

and manual check

Apply oil*.

Wear of sprocket teeth,

Visual inspection

Inspection and adjustment

damagesand manual checkor replacement

Rotation malfunction,

Visual inspection

Inspectionloose attachment bolts

and manual check

Tighten loose bolts.

Overheat, abnormal noise

Manual check,

Inspection and adjustment

listeningor replacement

Wear of surface,

Visual inspection

Inspection and adjustment

rotation malfunction

and manual checkor replacement

Pulleys andRotation malfunction,

Visual inspection

Inspection, repair

rollersloose attachment bolts

and manual check

Tighten loose bolts.

Overheat of bearings,

Manual check,

Inspection and adjustment

abnormal noise

listeningor replacement

Loose attachment bolts

Visual inspection

Tighten loose bolts.

Sprocket

Three

Geared motor

monthlySixsubstances

Drive pulleymonthly

Frame, stands,

Slack, lubrication

attachments

and manual check
Damages

Visual inspection

Inspection and adjustment

and manual checkor replacement*Appling oil to drive chain:
Apply oil to drive chain every 1 month or every 160 operating hours, following procedures below.
However, for machines using toothed belt (or timing belt) instead of drive chain, lubrication is
unnecessary.
-When using lubricating oil for bicycles etc.:
Remove cover-R by loosening cross-recessed pan head machine screws(*1). Drop oil onto drive
chain.
-When using spray type lubricating oil:
Spray oil into lubricating hole(*2). (It is unnecessary to remove cover-R.)
NOTE: If it is necessary to protect belt from oil mist, do not use spray type lubricating oil.

30

MEMO

31

LOGISTIC TECHNOLOGY DEPT., MACHINERY SYSTEMS ADMINISTRATION DIV.

Customer Center
TEL +81-46-273-8989 FAX +81-46-273-8990
URL https://www.hansou.jp
E-mail kikaiinfo@eng.sanki.co.jp

hansou.jp

Contact us● Particular attention is given to the manufacture and transportation of SANKI
conveyors. However, if you need any information about the use or failure of themachine or any other matters, please contact our customer service. Also do nothesitate to ask us for information about conveyors in general.
●The specification given in this manual are subject to change without notice.

Manual Code SZ-017 ‘24/08

32