Installation and
Maintenance Instructions

Combi Screw and
Roots Vacuum Pumps

COBRA BC 1000 F PE
Standard version

0870771770/-0001 / 20.10.2021/ Original instructions

Table of contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COBRA BC 1000 F PE . . . . . . . . . . . . . . . . . . . . 3
Product description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating principle . . . . . . . . . . . . . . . . . . . . . . . . 5
COMBI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Principle of DP vacuum pumps . . . . . . . . . . . . . . . 6
Principle of MB vacuum pumps . . . . . . . . . . . . . . . 6
Gas flow checks . . . . . . . . . . . . . . . . . . . . . . . . 6
Oil circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Nitrogen system . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional functions/ Use of available accessories . . . . . . . . . 6
On/ Off switch . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety information . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety stickers . . . . . . . . . . . . . . . . . . . . . . . . . 7
COBRA NW 0100 E . . . . . . . . . . . . . . . . . . . . . 7
COBRA WY 0701 B . . . . . . . . . . . . . . . . . . . . . 7
BC 1000 F PE . . . . . . . . . . . . . . . . . . . . . . . . 7
Noise emission . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Safety area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Types of Electrical Work . . . . . . . . . . . . . . . . . . . . 8Type 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Type 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Type 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Type 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Lock Out/ Tag Out procedure (Type 1 of electrical work) . . . 8Emergency off circuit description. . . . . . . . . . . . . . . . 8
Installation of the vacuum pump in a seismic zone . . . . . . . . 8
Information over the lubricants . . . . . . . . . . . . . . . . . 8
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Decommissioning procedure . . . . . . . . . . . . . . . . . . . 8
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Transport in packed state . . . . . . . . . . . . . . . . . . . . . 9
Transport in unpacked state . . . . . . . . . . . . . . . . . . . 9
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Temporary storage . . . . . . . . . . . . . . . . . . . . . . . . 9
Removal of the pump . . . . . . . . . . . . . . . . . . . . . . 9
Preservation . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start-up of the vacuum pump after storage: . . . . . . . . . . 9
Installation and Commissioning . . . . . . . . . . . . . . . . . . 10
Installation prerequisites. . . . . . . . . . . . . . . . . . . . . 10
Local installation . . . . . . . . . . . . . . . . . . . . . . . 10
Inlet connection . . . . . . . . . . . . . . . . . . . . . . . 10
Discharge connection . . . . . . . . . . . . . . . . . . . . . 11
Cooling water connection . . . . . . . . . . . . . . . . . . 11
Nitrogen connection . . . . . . . . . . . . . . . . . . . . . 11
Electrical connection/ Checks . . . . . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Dimensional drawing BC 1000 F PE . . . . . . . . . . . . 11
Electrical connection . . . . . . . . . . . . . . . . . . . . . 12
Power wiring connection . . . . . . . . . . . . . . . . . . . 12
Power connector on vacuum pump front side . . . . . . . 12
Equipment connections (with options) . . . . . . . . . . . . 12
Connection of the lines/ pipes . . . . . . . . . . . . . . . . 12
Oil filling . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Oil filling on vacuum pump NW 0100 E . . . . . . . . . . 13
Oil filling on vacuum pump WY 0701 B . . . . . . . . . . 13
Checking the direct cooling . . . . . . . . . . . . . . . . . . 13
Saving the operating parameters . . . . . . . . . . . . . . . 13
Recommendations on operation. . . . . . . . . . . . . . . . . 13
Application . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Switching the vacuum pump on/ off . . . . . . . . . . . . . 14
First start-up of the system . . . . . . . . . . . . . . . . . 14
Switching the system off . . . . . . . . . . . . . . . . . . 14
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance program. . . . . . . . . . . . . . . . . . . . . . 15
Weekly:. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Monthly: . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Yearly: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Every 16 000 hours of operation, at the latest after 4 years: . 16
Lock Out/ Tag Out procedure . . . . . . . . . . . . . . . . 16
Safety Lockout procedure. . . . . . . . . . . . . . . . . . . 16
Checking the oil . . . . . . . . . . . . . . . . . . . . . . . . . 16
Checking the oil level . . . . . . . . . . . . . . . . . . . . . 16
Refilling oil . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Checking the colour of the oil . . . . . . . . . . . . . . . . 16
Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Draining used oil . . . . . . . . . . . . . . . . . . . . . . 16
Filling in new oil . . . . . . . . . . . . . . . . . . . . . . . 17
Checking the cooling water . . . . . . . . . . . . . . . . . . . 17
Checking the cooling water flow . . . . . . . . . . . . . . . 17
Checking the nitrogen. . . . . . . . . . . . . . . . . . . . . . 17
Checking the nitrogen flow . . . . . . . . . . . . . . . . . . 17
Checking the current consumption . . . . . . . . . . . . . . . 17
Checking the silencer (accessory) . . . . . . . . . . . . . . . . 17
Checking the leak-protection non-return valve (accessory) . . . 17
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Removal from service . . . . . . . . . . . . . . . . . . . . . . . 17
Temporary removal from service . . . . . . . . . . . . . . . . 17
Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . 17
Dismantling and Disposal of the vacuum pump . . . . . . . . . 18
Oil type/ quantity . . . . . . . . . . . . . . . . . . . . . . . . . 19
Oil type. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Oil quantity. . . . . . . . . . . . . . . . . . . . . . . . . . 19
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
EU-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 21
UK-Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Preface
Congratulations on your purchase of the Busch vacuum pump. With
watchful observation of the field’s requirements, innovation and steadydevelopment Busch delivers modern vacuum and pressure solutions
worldwide.
These operating instructions contain information for

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product description,
safety,transport,
storage,installation and commissioning
maintenance,
overhaul andtroubleshootingof the vacuum pump.
For the purpose of these instructions, “handling” the vacuum pumpmeans the transport, storage, installation, commissioning, influence on
operating conditions, maintenance, troubleshooting and overhaul ofthe vacuum pump.
Prior to handling the vacuum pump these operating instructions shallbe read and understood. If anything remains to be clarified pleasecontact your Busch representative.
Keep these operating instructions and, if applicable, other pertinent
operating instructions available on site.

PrefaceBC 1000 F PE

Page 20870771770 (En)

IN

EC
PRV
ECP
OUT

COBRA BC 1000 F PE
IN Inlet connection
OUT Discharge connectionCWC

OSG Oil sight glassCWC Cooling water connectionsNC

NC Nitrogen connections
CP PLC box
EB Eye bolts
CPC PLC connection

CAO

EB

RC

ES Emergency stop button(EMO)
MB On/ off switch/ Main circuit
breaker
ECP Earthing connection M8
CAO Extracting ventilator

CP

RF Ventilator

ES

EC Electrical connections
RC LCDPRV Nitrogen pressure reducer

OSG

CPC
MB
RF

BC 1000 F PE
0870771770 (En)Page 3

VFD2

MOT2

TS3

TS1

MOT1
OSG4 MOT2 TS2

VFD1

OSG3

CWR
CWM

TS4

PSA

OSG1

MV

BC 1000 F PE

Page 40870771770 (En)PRV Nitrogen pressure reducer
PSA Pressure sensor
Process gas inlet

OSG4

MOT2

VFD2

TS2

TS 3 Oil temperature sensor (MB)(klixon)

VFD1

TS 4 Sensor PT100
OSG 1 Oil level indicator (DP)OSG 3 Oil level indicator (MB)MB

OSG 4 Oil level indicator (MB)OSG3

Cooling water
inlet

TS3
TS4

CWM

DP

OFP

Oil fill plug

ODP

Oil drain plug

MOT 1 Motor (DP)MOT 2 Motor (MB)CWM Cooling water flow meter

CWR

Cooling wateroutlet

VFD 1 Frequency inverter (DP)VFD 2 Frequency inverter (MB)CWR Cooling water regulating valve

Process gas
outletPSA

OSG1 MOT1

MV Nitrogen solenoid valve
TS 1 Klixon (DP)TS 2 Klixon (MB)TS1

Nitrogen inlet
PRV

DP

MV

MB
7

4

2

5

3

6

1

1

Inlet

2

Outlet3

Oil

4

Cooling water

5

Barrier gas

6

Motor klixon DP

7

Intake medium

8

Screw rotors

9

Roots lobe

10 Motor klixon MB
8

4

Product description

The following indicative values for air can be considered:

Use– Pa < 50 mbar, TGas < 200°C

The COBRA BC vacuum pumps are designed for use in the field of
microelectronics and similar industries.

The vacuum pump is intended for use in a potentially non-explosive
environment.

They can be used to suck gases and gas mixtures.

As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable forcontinuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed morethan 5 min. For other applications, contact your Busch representative.
– Maximum inlet pressure: 1 bar (abs).
– With vacuum pump running at full speed, do not expose to inlet
pressure > 300 (hPa) mbar.

WARNING
When using toxic, inflammable and/ or explosive gases, make surethat the system corresponds in design to applicable local andnational safety regulations and that all applicable safety measures
are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors
can result in the pump sucking in a certain quantity of liquid. If thepump has sucked in liquid, a short drying time is necessary at the endof the procedure.
The allowed maximum inlet gas temperature depends on the inlet
pressure and the type of gas: the lower the inlet pressure (Pa), thehigher the drawn gas temperature (TGas) can be.

– Pa > 50 mbar, TGas < 80°C

The vacuum pump is tight down to ultimate pressure.

Operating principle
COMBI
The COBRA BC 1000 F PE pumps are a combination of a screw
vacuum pump NW 0100 E (DP) and a Roots vacuum pump WY 0701
B (MB)BC 1000 F PE

Product description

0870771770 (En)Page 5

The COBRA BC 1000 F PE vacuum pumps are COBRA NW screw
vacuum pumps with cooling water and nitrogen circuits.
The COBRA NS screw vacuum pumps are driven by water-cooled
motors.

Principle of DP vacuum pumps
The COBRA NS screw vacuum pumps work by the principle of spiral
pumps. Two parallel screws (8) rotate in opposite directions in thepump body. Entering gases are trapped between the flights of thescrews and the pump body. The gases are conveyed by the rotation of
the screws to the exhaust, where they are discharged.

Principle of MB vacuum pumps
The Roots vacuum pumps operate according to the approved principleof the Roots type machine. Operation is both simple and effective.
Two lobes (9) with identical profiles rotate in opposition directions
within a casing. As they rotate, gas is drawn into the space between
each lobe and the casing where it is trapped and by the rotation
pushed out into the discharge. This action is repeated twice for eachrevolution of each lobe and therefore four times for each revolution of
the drive shaft. There is no mechanical contact between lobes andcylinder. So no oil lubrication is required.
The drive motor of roots pump is a water cooled canned motor.

Nitrogen system
With a pressure of 4,0 bar, the flow is around 25 l/min.

Optional functions/ Use of available
accessories
A pressure sensor (PSA) mounted at the exhaust , controls theoverpressure at the exhaust. If overpressure is above 0,3 bar, pressure
sensor gives a warning then an alarm signal. Status of the pumpdepends on the alarm function set by user (factory setting : None,
pump continues running with an alarm).
A temperature sensor PT100 (TS 4) mounted on the cylinder, measures
the temperature inside the cylinder (DP).
A silencer or sound absorber (accessory) at the exhaust reduces thenoise of the pump and collects any condensate.
A leak-protection non-return valve (optional) at the exhaust traps thecondensate in the pump when the pump is switched off.
The LCD controller processes the data of the sensors as follows:

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PSA: exhaust pressure
TS 4: temperature inside the cylinder DP
MOT 1 and MOT 2: DP and MB current and speed
DGF: nitrogen flow rate
CWM: cooling water flow rate in motors/ transmission/ frequency
inverters

See "Installation and Maintenance Instructions, Busch PLC and BuschLCD (No. 0870758077)".

On/ Off switch
The vacuum pump is delivered with a circuit breaker. The function
start/ stop can be done in Local by using the LCD controller or in
Remote by the production machine.

Versions
Further vacuum pump descriptions state the nominal displacement andthe design level.
Example: BC 1000 F PE
BC = standard version
1000 = 1000 m3/h
F PE= Design

Gas flow checks
A pressure sensor PSA at the discharge monitors the dischargepressure. If the pressure reaches more than the limit value (alarm,preset at the factory: 0.2 bar), the purge cycle starts.

Oil circuit
Since the complete operating principle works without contact, no oil
circuit is needed in the work area.

Cooling
The vacuum pump is cooled by–a direct cooling water circuit in the motors and the DP and MB
transmission casing. The flow regulating valve CWR of coolingwater is preset on 3-4 l/min at the factory. The water cools in the
DP and MB pumps motors, the two frequency inverters (VFD 1,
VFD 2) and the drive/ pump transmission DP system.

–a direct cooling water circuit in the rear bearing (for exceptionallycool running in option).

NOTE: The COBRA BC 1000 F PE vacuum pumps are principally
dispatched without oil already in the vacuum pump but, without
cooling water. Before vacuum pump first startup, control the oil level
and the cooling liquid level. In the event of absence of one or the otherof these lubricants, please carry out the filling (please refer to thevarious chapters of filling). Do not forget to connect the cooling watersupply before the first startup. Operation without these coolants canresult in damage to the vacuum pump.

Product description

BC 1000 F PE

Page 60870771770 (En)Safety
Intended use

Safety stickers
COBRA NW 0100 E

DEFINITION: For the purpose of correct understanding, the “handling”
of the vacuum pump implies the transport, storage, installation,commissioning, the influence on operating conditions, maintenance,
troubleshooting and overhaul of the vacuum pump.
The vacuum pump is intended for industrial use. It should only behandled by qualified staff.
The different applications for use and operational limits of the vacuum
pump as laid out in the “Product Description” and the “Installation
Prerequisites” of the vacuum pump must be observed both by the
manufacturer of the machinery into which the vacuum pump is to beincorporated and by the end user.
The need for personal safety regulations depends mainly on theapplication the pump will be used in. The end user must provide theoperators with all necessary means and tools and must inform his
personnel about any dangers emanating from the processed products.

WARNING!
Hot surface!
Do not touch!

WARNING!
Hot surface!
Do not touch!

COBRA WY 0701 B

The operator of the vacuum pump must observe the safety regulations
and must train and instruct his personnel accordingly.

WARNING!
Hot surface!
Do not touch!

Local regulations regarding the motors and electric control elements
must be observed when installing the pump in potentially explosive
environments.
The maintenance instructions must be observed and respected.
It is vital that these installation and maintenance instructions are readand understood before the vacuum pump is used. If you have any
doubts, please contact your local Busch representative.

Safety information
The vacuum pump has been designed and manufactured in accordancewith the latest technical and safety standards. Nevertheless, residual
risks may remain.

BC 1000 F PE

A lot of safety information is mentioned in these Installation andOperating Instructions as well as on the pump. The safety instructions
must be observed. The safety information can quickly be detected
through key words like DANGER, WARNING and CAUTION and isdefined as follows:
DANGER
Disregard of this safety note will always lead to accidents withpotentially fatal injuries and serious damages.
WARNING
Disregard of this safety note may lead to accidents with potentiallyfatal injuries and serious damages.
CAUTION
Disregard of this safety note will always lead to accidents with minor
injuries and damages to property.

BC 1000 F PE

Safety0870771770 (En)Page 7

Noise emission
Refer to the table “Technical data” for the permissible noise levelingfree field conditions according to EN ISO 2151.
CAUTION
The sound level of the vacuum pump within a certain perimeter ofthe pump is high.

Installation of the vacuum pump in aseismic zone
Upon receipt, the vacuum pump is fixed on the transport pallet withtwo brackets.
lConvey the pump to its final location with a pallet truck before
removing it from its supportlUnscrew the fixing screws of the pump on the transport pallet andremove the machine from its support with an appropriate lifting
system by using the lifting brackets made for this purpose

Risk of hearing damage.
Users who are spending a longer period of time in the vicinity of a
non-insulated vacuum pump must wear suitable ear protection.

Lifting bracket

Safety area
Before any maintenance action, ensure a safety perimeter of a least
610 [mm] around the pump.

Electrical safety
Types of Electrical Work
The following are the four types of electrical work defined by the SEMI
S2, latest version, guideline:

Type 1
Adjusting nut

Equipment is fully deenergized.

Wheel

Type 2Equipment is energized. Energized circuits are covered or insulated.
NOTE : Type 2 work includes tasks where the energized circuits are or
can be measured by placing probes through suitable openings in the
covers or insulators.

l

The pump must not lay only on the brackets. Unscrew the four
adjusting nuts until the machine legs touch the groundl

Check that the wheels no longer touch the ground

Type 3Equipment is energized. Energized circuits are exposed and inadvertentcontact with uninsulated energized parts is possible. Potential
exposures are no greater than 30 volts rms, 42.4 volts peak, 60 volts dc
or 240 volt-amp in dry locations.

Type 4Equipment is energized. Energized circuits are exposed and inadvertentcontact with uninsulated energized parts is possible. Potential
exposures are greater than 30 volts rms, 42.4 volts peak, 60 volts dc,
or 240 volt-amp in dry locations. Potential exposures toradio-frequency currents, whether induced or via contact, exceed thelimits in Table A5-1 of Appendix 5 (SEMI S2 guideline).

Lock Out/ Tag Out procedure (Type 1 ofelectrical work)lStop the pump with the LCD controller (press on STOP button
during 10s)l

Press on emergency stop buttonl

Switch off the main circuit breakerl

Switch off the customer’s power supplyl

Switch off the water and nitrogen quick connections (inlet first,
then outlet)l

Put the label or warning board “Maintenance processing” on or
next to the pump

Emergency off circuit descriptionl

The Emergency off circuit may be opened by pressing on
emergency stop button. If this element occurs, then the DP and
MB pumps will immediately stop. The PLC will remain energized
to save the pump status.

l

If the emergency stop button was pressed, check the start up of
the pump then release this button to restart the pump. Press on
Start button on the LCD controller, the pump will restart.

CAUTION
The vacuum pump is fixed to the ground with four M10 screws, twoscrews per bracket. The fixing screw must stand a 1200 N tensile
force (per bracket).
The final user must adapt the type of screws depending on the
ground material.

Information over the lubricants
Oil
Busch YLC 250 B, Art. No. 0831 131 400 (0,5 l @ 1 kg)
Quantity BC 1000 F PE:
WY 0701 B - MB: 1,4 l
NW 0100 E - DP: 0,12 l––

Replacement: After 16'000 h (see Maintenance program)Technical data sheet: Please refer to chapter "Oil type/ Quantity".

Decommissioning procedure
When the product arrives at the end of the lifetime, it is necessary toproceed to the decontamination of the vacuum pump
CAUTION
Only authorized personnel may carry out any dismantling on thevacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration Regarding Contaminationof Vacuum Equipment and Components” that provides information
on possible dangers and appropriate measures.
If this form has not been filled in completely and signed by a
responsible person, the vacuum pump may not be dismantled.

SafetyBC 1000 F PE

Page 80870771770 (En)ll

Proceed to disassembly of the vacuum pump. Please make sure towear a personal protective equipment (PPE) prior to any
intervention on the vacuum pump. Some residue may remain
inside.
Proceed to decommissioning of the different parts according to thecurrent local and national laws

CAUTION
In case of a vacuum pump filled with oil, make sure that by lifting
the inclination angle of the vacuum pump do not exceed 5° fromthe horizontal . In case of too high inclination (>5°), risk of oil leakwithin the work area

Transport

Make sure before every transport using the appropriate lifting meanthat the inclination of the vacuum pump is less than 5°.

The COBRA BC vacuum pumps are tested and checked in our factory
before careful packing. Check the packaging for transport damage
when the goods arrive. The pump can withstand temperatures
between -25°C and +55°C during transport.

The packaging material must be disposed of in accordance with local
and national regulations.

Transport in packed state
Packed on a pallet, the vacuum pump can be moved with a handforklift truck.

Transport in unpacked stateThis handbook is contained in the delivery package.

Storage
Temporary storagel

Make sure that the intake and exhaust flanges are closed (put on
the protective caps included in the delivery package of the vacuum
pump)

l

Store the vacuum pump–

if possible, the vacuum pump should be stored in its original
packaging,–––indoors,

The vacuum pump is fastened to the pallet with fixing pins:u Unscrew the fastening nuts underneath the pallet.
CAUTION
Do not work, walk or stand under suspended loads.
CAUTION
Please check out the weight of the vacuum pump before lifting it up(see "Technical Data").
Use adequate lifting gear for this.
NOTE: The eyebolts are fitted more or less at equal distance from thecentre of gravity of the vacuum pump incl. drive motor. If any
accessories that could upset the balance of the vacuum pump, areinstalled, or if the vacuum pump is delivered without drive motor, it isnecessary to add a belt or rope at a suitable point when lifting thepump.
lAttach lifting gear securely to the eyebolt or eyeboltsl

Use lifting gear with a crane hook equipped with safety latch.

lLift the vacuum pumpIn case the vacuum pump was bolted to a pallet with fixing bolts:
Unscrew the fixing bolts in the base frame.

dry,
in a dust-free and vibration-free room

Removal of the pump
Before starting a vacuum pump that has been stored outside thebuilding for a while, the vacuum pump must be moved to a room with
ambient temperature, where it should rest for a day.

Preservation
If the vacuum pump will be exposed to unfavourable ambientconditions (for example, aggressive environment, frequent temperaturechanges), begin immediately with preservation work on the vacuumpump.
In the case of favourable ambient conditions, perform preservation
work on the vacuum pump if a storage period of more than threemonths are planned.
lMake sure that all openings are hermetically sealed; use adhesive
tape to fasten loose parts (seal rings, flat seals, etc.).

NOTE: VCI is the abbreviation for “volatile corrosion inhibitor”. The
VCI molecule is an organic corrosion inhibitor in the vapour phase.
Integrated in various carriers such as film, cardboard, paper, foam,liquid and powder, it protects the parts against corrosion as a result of
its action in the vapour phase. However, VCI packaging can attack
synthetic surfaces and surfaces of other elastomers. If in doubt, pleasecontact your nearest distributor. VCI packaging provides several years
of protection against corrosion, even under the harshest of conditions:overseas shipment, extended storage before use.
l

Wrap the vacuum pump in a VCI filmlStore the vacuum pump–

if possible, the vacuum pump should be stored in its original
packaging,

–
–
–
–

indoors,dry,
in a dust-free andvibration-free room

Start-up of the vacuum pump after storage:lMake sure that all protective elements, stoppers or adhesive tapes
attached before preservation have been removedl

Switch on the vacuum pump in the sequence described in thechapter “Installation and Commissioning”

BC 1000 F PE

Transport

0870771770 (En)Page 9

Installation and Commissioningl

Make sure that the installation site or assembly area is ventilated insuch a way that adequate cooling of the vacuum pump is ensured

Installation prerequisites
CAUTION
In case of non-compliance with the installation prerequisites,
particularly in case of insufficient cooling:
Risk of damage or destruction of the vacuum pump and its
components!

CAUTION
The surface temperature of the vacuum pump can exceed 50°C
when the vacuum pump is in operation.
Danger of burns!
lMake sure that no-one can touch the vacuum pump accidentally.
If necessary, attach safeguardlMake sure that the oil sight glasses (OSG 1, 2, 3) are easily
accessible

Risk of personal injury!
The installation prerequisites must be complied with.
lPlease ensure that the integration of the vacuum pump is
compliant with the safety requirements of the Machine Directive
2006/42/EC (concerning the responsibility of the system’s
manufacturer into which the vacuum pump is to be incorporated,
please also refer to the note in the EC-Declaration of Conformity).

If oil changes are to be made on site:u Make sure that the oil drain and oil filler are easily accessible

Inlet connectionl

WARNING
Local regulations regarding the motors and electric control
elements must be observed when installing the pump in potentiallyexplosive environments. Make sure before start-up that all safetymeasures have been followed.

CAUTION
Do not put hands into the inlet aperture.
Risk of body damage!

Local installationl

Make sure that the environment of the vacuum pump is notpotentially explosivelMake sure that the following ambient conditions are fulfilled:

–
–
–
–

Ambient temperature: 0 ... 40 °C (32 ... 104 °F)lMake sure that the cooling water fulfills the following
requirements:–––

Temperature: 10 - 25 °C

CAUTION
The intake of liquids or solid particles can lead to the destruction of
the vacuum pump
If the sucked gas contains dusts or solid foreign bodies:

Ambient pressure: atmosphereu Make sure that a filter or protective grating is installed at theextraction point

Humidity range: 20 to 95%
Altitude: up to 1000 ml

Make sure that the nominal diameter of the intake line is at least
equal to the diameter of the intake flange of the vacuum pump toprevent a drop in the performance of the vacuum pump in the caseof a smaller cross-sectionlMake sure that the vacuum pump is connected with leakproof lines

Overpressure: 2 - 5 bar (relative)
Water hardness: < 5 ° dGH

NOTE: 1° (german degree = 1° dGH) = 1,78° (french degree) = 1,25 e(english degree) = 17,9 mg/kg CaCO3 (american hardness)–

Minimum flow rate: 3 - 4 l/ min for the standard versionlMake sure that the cooling water is neutral and cleanlMake sure that the cooling water outlet is unpressurisedlMake sure that the nitrogen fulfills the following requirements:––l

Make sure that the protection that was attached to prevent
penetration of particles during transport has been removed before
the vacuum pump is connected to the vacuum line

CAUTION
When the intake lines have been connected, make sure that thesystem does not leak. Leakages of dangerous substances must be
prevented!
l

Make sure that the intake lines are equipped with a shut-off device
upstream of the intake flange so that the flow of sucked gas canbe stopped

Overpressure: 4,0 bar
Approximate flow rate: 25(CDA) l/ minlMake sure that the intake lines do not exercise any force on theintake flange. Mount bellows if necessary

Make sure that the ambient conditions correspond to theprotection class of the motor (according to nameplate)l

The inlet flange has the following dimension:–

BC 1000 F PE: DN 100 ISO-Kl

Make sure that the vacuum pump is placed on or fastened to ahorizontal surfacelMake sure that the vacuum pump is levell

Make sure that the vacuum pump is at least 1 m away from any
wall to ensure good coolingIn the case of long intake lines, the line cross-section should be larger
than the intake flange to prevent a drop in the performance of thevacuum pump. If you have any doubts, contact your Busch
representative.

lMake sure that the vacuum pump is easily accessible and that the
selected installation site fulfills the requirements for
assembly/dismantlingl

Make sure that no temperature-sensitive parts (for example, ofplastic, wood, cardboard, paper, electronic parts) come into
contact with the hot surfaces of the vacuum pump

Installation and Commissioning

BC 1000 F PE

Page 100870771770 (En)Dimensional drawing BC 1000 F PE
䣘䣧䣰䣶䣫䣮䣣䣶䣫䣰䣩䢢䣦䣷䣥䣶
䢷䢲䢰䢺

䢳䢲䢲䢰䢷

䢳䢶
䢷

䢵䢴䢷

䣇䣺䣪䣣䣷䣵䣶䢢䣲䣫䣲䣧䣆䣐䢶䢲䢢䣋䣕䣑䢯䣍䣈

䢹䢴䢶

䢳䢲䢷䢶

䣇䣺䣪䣣䣷䣵䣶
䣈䣮䣣䣰䣩䣧䢢䣆䣐䢶䢲䢢䣋䣕䣑䢯䣍䣈䢳䢳䢲䢷䢰䢷

䣑䣲䣶䣫䣱䣰䢢䣲䣣䣴䣶䣵䢢䢼䢢䣕䣲䣴䣫䣰䣩䢢䣥䣪䣧䣥䣭䢢䣸䣣䣮䣸䣧䢪䢲䢷䢶䢳䢢䢹䢲䢲䢢䢳䢴䢶䢫䣋䣰䣮䣧䣶䣆䣐䢢䢳䢲䢲䢢䣋䣕䣑䢯䣍䣅䣱䣰䣶䣴䣱䣮䢢䣤䣱䣺䢪䣯䣱䣸䣧䣣䣤䣮䣧䢫䣇䣯䣧䣴䣩䣧䣰䣥䣻䢢䣵䣶䣱䣲

Tool Interface

LCD 2

䢶䢴䢷

PID

RUN

Power
LCD 1

䢸䢷䢳

䢴䢴䢰䢷

䣔䣧䣯䣱䣶䣧䢢䣥䣱䣰䣶䣴䣱䣮䢪䣯䣱䣸䣧䣣䣤䣮䣧䢫

Prog

USB

Cus t.Nwk

EDH䣑䣫䣮䢢䣵䣫䣩䣪䣶䢢䣩䣮䣣䣵䣵

䢸䢵䢹䢰䢷

䢸䢲䢸䢰䢹

䢸䢹䢲

䣋䣰䣶䣧䣴䣴䣷䣲䣶䣧䣴䢢䣯䣣䣫䣰䢸䢳䢷䣒䣴䣧䣵䣵䣷䣴䣧䢢䣩䣣䣷䣩䣧䣒䣴䣧䣵䣵䣷䣴䣧䢢䣴䣧䣩䣷䣮䣣䣶䣱䣴

䣖䣻䣲䣧
䣐䣱
䣒
䣑䣲䣧䣴䣣䣶䣫䣰䣩䢢䣨䣴䣧䣳䣷䣧䣰䣥䣻䢢䣯䣣䣺䢰䣒䣱䣹䣧䣴䢢䣥䣱䣰䣰䣧䣥䣶䣱䣴䣗䢢䣴䣣䣰䣩䣧
䣒䢢䣴䣣䣶䣧䣦
䣋䢢䣴䣣䣶䣧䣦
䣋䣯䣣䣺
䣋䣥䣷

䣈

䣅䣱䣱䣮䣫䣰䣩䢢䣹䣣䣶䣧䣴䢢䣱䣷䣶䣮䣧䣶䣇䣮䣧䣥䣶䣴䣫䣥䣣䣮䣵䣥䣪䣧䣯䣣䣶䣫䣥䣵䣐䣫䣶䣴䣱䣩䣧䣰䢢䣫䣰䣮䣧䣶

䢵䢵䢸

䢻䢲

䢳䢲䢴

䣅䣱䣱䣮䣫䣰䣩䢢䣹䣣䣶䣧䣴䢢䣫䣰䣮䣧䣶䢹䢻䢲䣇䣺䣪䣣䣷䣵䣶
䣆䣐䢢䢶䢲䢢䣋䣕䣑䢯䣍䣈䢻䢷䢲

Discharge connection䣑䣫䣮䢢䣵䣫䣩䣪䣶䢢䣩䣮䣣䣵䣵

Cooling water connection
The cooling water is generally connected with a hose.

CAUTION

The cooling water outlet must be unpressurised.

Do not put hands into the outlet aperture.

Connection diameter: 3/8 NPT

Risk of body damage!

Nitrogen connection

The following instructions for connection to the discharge only apply if
the sucked gas is discharged by the vacuum pump into a suitableenvironment.
lMake sure that the protection that was attached to prevent
penetration of particles during transport has been removed before
the vacuum pump is connected to the vacuum linel

Make sure that the nominal diameter of the exhaust line is at least
equal to the diameter of the exhaust flange of the vacuum pump
to prevent a drop in the performance of the vacuum pump in thecase of a smaller cross-sectionlMake sure that the vacuum pump is connected with leakproof lines

The nitrogen is connected with a pipe (leakproof against oxygen).
Connection diameter: 1/4 NPTElectrical connection/ Checksl

Make sure that the regulations of the Electromagnetic
Compatibility Directive 2014/30/EU as well as standard EN norms,
safety directives and especially local and national regulations areobserved (this is the responsibility of the manufacturer of thesystem into which the vacuum pump is integrated according to the
Declaration of Conformity)lMake sure that the main power supply corresponds to the data on
the nameplate of the motorlMake sure that an overload cut-out according to EN 60204-1 isprovided for the motorlMake sure that the drive of the vacuum pump is not disturbed byany electric or electromagnetic interferences. If you have any
doubts, contact your Busch representative

CAUTION
When the discharge lines have been connected, make sure that thesystem does not leak. Leakages of dangerous substances must be
prevented!
l

Make sure that the discharge line is mounted in such a way thatcondensate cannot penetrate into the pump (siphon trap, gradient)l

Make sure that no shut-off devices are mounted in the dischargelinelMake sure that the discharge lines do not exercise any force on the
discharge flange. Mount bellows if necessaryl

The discharge flange has the following dimension:–

DN 40 ISO KF

Installation
Mountingl

Make sure that the “Necessary installation instructions” arefollowedlFasten or install the pump at its final installation site

In the case of long discharge lines the line cross-section should belarger than the discharge flange to prevent a drop in the performanceof the vacuum pump. If you have any doubts, contact your Busch
representative.
BC 1000 F PE

Installation and Commissioning

0870771770 (En)Page 11Equipment connections (with options)Electrical connection
WARNING
Risk of electrocution, risk of damage.
Electrical installation must be performed by a suitably qualified
electrician who knows and follows the following regulations:- IEC 364 or CENELEC HD 384 or DIN VDE 0100,- IEC Report 664 or DIN VDE 0110,- VBG 4 or corresponding national regulations on accident
prevention

Power wiring connection
Power wiring 4 poles
1

Phase L1

2

Phase L2

3

Phase L3

4

GroundPower connector on vacuum pump front side7
8

Power connectors
Phase
L1

Phase
L2

Phase
L3

Earth

Phase
L1

Earth

Phase
L3

DDK

l

1
2
3
4
5
6

Phase
L2

Yeonhap

Connect the main cable on the socket, according to the following
figureCAUTIONLCD serial wiring (RJ45), LCD1
LCD serial wiring (RJ45), LCD2
PC serial wiring (9 poles) (option)
USB connection
Customer Network, Communication modbus RTU RS 232
Ethernet network connection (Busch Monitoring System)(option)Interface connection (50 poles) (option)
PID Interface (9 poles) (option)

The information concerning the use of the Busch PLC and the BuschLCD can be found in the Operation and Maintenance manual (Art.No.
0870558077).

Connection of the lines/ pipeslConnect the intake lines

lConnect the discharge lineslMake sure that all caps, safeguards and similar covers are mountedl

Make sure that the inlet and outlet for the cooling air are notcovered or closed and that the flow of cooling air is not impaired inany way

Oil filling

If the vacuum pump is operated with a motor that turns in thewrong direction, it can be destroyed, even if this is the case for only
a short moment.

The COBRA BC 1000 F PE vacuum pumps are generally dispatchedwith oil already in the vacuum pump. Before vacuum pump firststartup, control the oil level. In the event of absence of one or theother of these lubricants, please carry out the filling (see the chapter“Oil types” for information on the recommended oils).

Make sure that the vacuum pump is connected correctly before
switching it on.

ll

Determine rotation sense of the motor by using a measure tool or
putting a rubber plate on the inlet.

lPress on the start buttonlMake sure that the vacuum pump draws inl

If not, push the Emergency stop button

If the direction of rotation has to be changed:

Prepare the quantity of oil specified in the table “Oil quantity”
Oil filling

NW 0100 E

WY 0701 B

Oil quantity [Liter]

0,12

1,4

Oil type

Busch YLC 250 B,
Art. No. 0831 131 400 (0,5 l @ 1 kg)

u Exchange two of the three feeder leads

Installation and Commissioning

BC 1000 F PE

Page 120870771770 (En)Oil filling on vacuum pump NW 0100 E

If the intake line is equipped with a shut-off device:u Open the shut-off device

Oil fill plug (OFP)

If the intake line is not equipped with a shut-off device:u Remove the rubber plate from the intake flange and connect
the intake line to the intake flange
CAUTION
In case of a vacuum pump filled with oil, make sure that by lifting
the inclination angle of the vacuum pump do not exceed 5° fromthe horizontal. In case of too high inclination (>5°), risk of oil leakwithin the work area

Oil drain plug (ODP)
Oil sight glass (OSG)
Oil sight glass (OSG)lMake sure before every transport using the appropriate liftingmean that the inclination of the vacuum pump is less than 5°.

Oil fill plug (OFP)

CAUTION
The vacuum pump must remain in a horizontal position when it has
been filled with oil.

Oil filling on vacuum pump WY 0701 B

Checking the direct cooling

Oil fill plug (OFP)The flow of the cooling water is checked by the flowmeter CWM. The
flowmeter must be connected in such a way that switching-on leads toa warning at 2l/min, when the flow drops below 1,5 l/min, thevacuum pump must be stopped.

Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
Oil sight glass (OSG)

Oil drain plug (ODP)

Oil sight glass (OSG)lMeasure the working current of the motor and save it as reference
value for all future maintenance and repair work

Recommendations on operation
NOTE: The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the various
oil sight glasses (OSG 1, 2, 3) on the vacuum pump.

Application
WARNINGCAUTION
Before you change the type of oil, make sure that the new type iscompatible with the old type. If necessary, flush the vacuum pump.
l

Unscrew the oil filler cap (OFP)l

Fill in oillMake sure that the oil level lies between the MIN and MAX
markings on the oil sight glassesl

Make sure that the seals of the oil filler cap are not damaged.
Replace them if necessarylScrew on the oil filler cap hermetically tight

NOTE: It is easier to switch on the vacuum pump with cold oil when
the intake line is not closed or when the intake flange is not covered bya rubber plate.
lStart the vacuum pump

If the intake line is equipped with a shut-off device:u Close the shut-off device
If the intake line is not equipped with a shut-off device:u Place a rubber plate on the intake flangelLet the vacuum pump run for a few minuteslStop the vacuum pump and wait a few minuteslMake sure that the oil level still lies between the MIN and MAX
markings on the oil sight glasses

If the oil level is below the MIN marking:u Fill in more oil

The vacuum pump is designed for use under the conditions
specified here.
If these conditions are not met, there is a risk of damage to or total
destruction of the vacuum pump and its components!
The vacuum pump may only be switched on under the specified
conditions.
The COBRA BC vacuum pumps are designed for use in the field of
microelectronics and similar industries.
They can be used to draw in gases and gas mixtures.
WARNING
When using toxic, inflammable and/or explosive gases, make surethat the system corresponds in design to applicable local andnational safety regulations and that all applicable safety measures
are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors
can result in the pump sucking in a certain quantity of liquid. If thepump has sucked in liquid, a short drying time is necessary at the endof the procedure.
The allowed maximum inlet gas temperature depends on the inlet
pressure and the type of gas: the lower the inlet pressure (Pa), thehigher the drawn gas temperature (TGas) can be.
The following indicative values for air can be considered:– Pa > 50 mbar, TGas < 80°C
– Pa < 50 mbar, TGas < 200°C

BC 1000 F PE

Installation and Commissioning

0870771770 (En)Page 13

The vacuum pump is intended for use in a potentially non-explosive
environment.
As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable forcontinuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed morethan 5 min. For other applications, contact your Busch representative.
– Maximum inlet pressure: 1 bar (abs).
– With vacuum pump running at full speed, do not expose to inlet
pressure > 300 (hPa) mbar.

CAUTION
If there is a risk of frost, all the cooling water must be drained out ofthe vacuum pump if the pump is shut down for a longer period of
time!

–

u Pull off the connections for the inlet and outlet of the coolingwater
u Drain the cooling water completely

The vacuum pump is tight down to ultimate pressure.

u If necessary, drain the cooling water with the help ofcompressed air to prevent any risk of frost or corrosion

CAUTION
The surface temperature of the vacuum pump can exceed 50 °C
when the vacuum pump is in operation.

Drain the cooling water

Switching the vacuum pump on/ offFirst start-up of the system

Danger of burns!

l

The vacuum pump may not be touched when it is in operation. If
touching the pump is unavoidable, wait until the surface
temperature has cooled down or wear protective gloves.

If the system is equipped with a solenoid gate valve in the coolingwater circuit:Make sure that the “Necessary installation instructions” arefollowedu Open the solenoid gate valvelMake sure that the cooling water flow is set correctly with thevalve CWR:

The intensity of the noise of the vacuum pump is higher within acertain area of the pump.

–

The cooling water circuit (*standard) is used to cool the variators,
the motors, the DP and MB cylinders. The regulating valve CWR of
the cooling water flow is preset at 3-4 l/min.

Risk of hearing damage!

l

Switch on the vacuum pump

Users must wear ear protection when spending a longer period oftime in the vicinity of a non-insulated vacuum pump.

l

Make sure that the system does not leak

CAUTION

If the system is equipped with a solenoid gate valve at the intake:

CAUTION
The COBRA BC 1000 F PE vacuum pumps could be delivered
without oil, without cooling water.
Operation without oil will result in damage to the vacuum pump!
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
CAUTION
The COBRA BC 1000 F PE vacuum pumps are always delivered
without oil, without cooling water.

CAUTION
Do not open gate valve if booster is running at full speed (90 Hz).
Use "Automatic Load Lock"mode or "External Signal" on toolinterface to start/ stop boster (refer to Busch PLC manual).
Risk of primary pump damage.
u Open the solenoid gate valve

Switching the system off
If the system is equipped with a solenoid gate valve at the intake:u Close the solenoid gate valve

Operation without coolants will result in damage to the vacuumpump!
CAUTION
The cooling water flow, which is checked by the flowmeter CWM,
must be at least 3-4 l/min.
l

Make sure that all caps, safeguards and similar covers are mountedl

Make sure that the safeguards are switched onlMake sure that the inlet and outlet for the cooling air are notcovered or closed and that the flow of cooling air is not impaired inany wayl

Make sure that the system does not leak. Leakages of dangerous
substances must be preventedl

Make sure that the “Necessary installation instructions” arefollowed and especially that adequate cooling is ensuredl

Switch off the vacuum pumpl

Shut off the nitrogen supplylShut off the cooling water supply

If the system is equipped with a solenoid gate valve in the coolingwater circuit:u Close the solenoid gate valvelMake sure that the system is currentless

The following must be noted when the pump is shut down for a longer
period of time:

Installation and Commissioning

BC 1000 F PE

Page 140870771770 (En)Before pulling off the different connections, make sure that the intake
and exhaust lines of the vacuum pump correspond to atmosphericpressure

Maintenance
DANGERIn case the vacuum pump has conveyed gases that have been
contaminated with foreign materials that are dangerous to health,the oil and condensates will also be contaminated.

When the maintenance work has been finished, follow the procedure“Safety Lockout procedure”:––

take off the label or warning board “Maintenance processing”–––

switch on the main circuit breakerrelease the emergency stop button

Danger to the environment.

–

make sure that the “Necessary installation instructions” arefollowed

Always wear protective clothing when carrying out maintenance
work.

–

start the pump with the LCD control (press on START button)

These foreign materials can infiltrate the pores, recesses and otherinternal spaces of the vacuum pump.
Danger to health when the vacuum pump is dismantled.

Before any maintenance work, the inlet and outlet piping as wellas the vacuum pump itself must be flushed with nitrogen.
CAUTION
Only authorized personnel may carry out dismantling work on thevacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration of Contamination of
Vacuum Equipment and Components” that provides information on
possible dangers and appropriate measures.
If this form has not been filled in completely and signed, thevacuum pump may not be dismantled.

switch on the water and nitrogen quick connections (outlet first,
then inlet)

Maintenance program
NOTE: The maintenance intervals depend a lot on the individual
operating conditions. The intervals given below should be considered
initial guidelines which ought to be shortened or extended as
appropriate. In particularly heavy duty operation such as high dust
loads in the environment or in the process gas, it may become
necessary to shorten the maintenance intervals significantly.

Weekly:l

Check the oil level and the colour of the oil (see “Checking the
oil”)

l

Check the cooling water flow (see “Checking the cooling water”)lCheck the nitrogen flow (see “Checking the nitrogen”)

lInspect the vacuum pump for oil leaks - if there are leaks, repair
the vacuum pump (Busch)lInspect the vacuum pump for leaks of cooling water - if there areleaks, repair the vacuum pump (Busch)

CAUTION
Before maintenance work is started, a safety area of at least 610[mm] around the machine must be set up.

check the oil level according to the chapter “Checking the oillevel”

Monthly:
CAUTION

In the case of operation in a dusty environment:u Make sure that the operating room is clean and free of dust;
clean if necessary

The surface temperature of the vacuum pump can exceed 50°C
when the vacuum pump is in operation.
l

Make sure that the vacuum pump has been switched off and thatit cannot be switched on again accidentally

Before starting maintenance work, make sure that the vacuum pumphas been switched off and that it cannot be switched on again
accidentally. Follow the shutdown procedure in the section “LockOut/ Tag Out procedure”:

lCheck the electrical connectionsl

Carry out a visual inspection of the vacuum pump–stop the pump with the LCD control (press on STOP button
during 10s)

l

–
–
–
–

press on emergency stop button–

put the label or warning board “Maintenance processing” on or
next to the pump

Danger of burns!

switch off the main circuit breaker

Yearly:If the intake is equipped with a sieve:u Check the sieve at the intake and clean if necessary

switch off the customer’s power supply
switch off the water and nitrogen quick connections (inlet first,
then outlet)

CAUTION

Make sure that the vacuum pump has been switched off and thatit cannot be switched on again accidentallyl

Check the measuring and safety equipment for working order

If the discharge is equipped with a silencer:
u Bleed the condensation of the silencer through the purge
system
If the discharge is equipped with a leak-protection non-return valve:u Clean the leak-protection non-return valve

The oil temperature can reach a value of 100°C!

lDanger of burns!

If the cooling water line is equipped with a filter:ll

Make sure that the oil circuit has been emptied before moving thevacuum pump
Make sure that there are no cleaning tools in the pump anymore
according to local and national regulations

BC 1000 F PE
0870771770 (En)

Check the ventilator filter (RF), clean if necessaryu Check the filter and clean or replace if necessarylCheck the seals and replace if necessarylCheck the intake and discharge lines and clean or replace ifnecessary

Maintenance
Page 15

Every 16 000 hours of operation, at the latest
after 4 years:llDrain the oil (see “Draining the oil”)
A main inspection of the vacuum pump (Busch)

Lock Out/ Tag Out procedurel

Make sure that the vacuum pump has been switched off and thatit cannot be switched on again accidentallyl

Unscrew the oil filler cap (OFP)l

Fill in oil up to the middle of the oil sight glassl

Make sure that the oil level lies between the MIN and MAX
markings on the oil sight glasseslStop the pump with the LCD control (press on STOP button during
10s)lMake sure that the seals of the filler cap are not damaged and thatthey sit properly. Replace them if necessarylPress on emergency stop buttonlScrew on the filler cap againlSwitch off the main circuit breaker

Checking the colour of the oillSwitch off the customer’s power supplyl

Switch off the water and nitrogen quick connections (inlet first,
then outlet)l

Put the label or warning board “Maintenance processing” on or
next to the pump

NOTE: The oil must be clear and transparent. A permanent milky
colour is an indication for contamination by foreign bodies. A darkcolour is an indication for oil that has been chemically altered orcontaminated by foreign bodies.
WARNING

Safety Lockout procedurelTake off the label or warning board “Maintenance processing”

lCheck the oil level according to the chapter “Checking the oillevel”

l

Switch on the main circuit breakerlRelease the emergency stop buttonl

Switch on the water and nitrogen quick connections (outlet first,
then inlet)l

Make sure that the “Necessary installation instructions” arefollowedlStart the pump with the LCD control (press on START button)

Checking the oil
Checking the oil levell

Make sure that the vacuum pump has been switched off and thatit cannot be switched on again accidentallyl

Indication of the oil level on the various oil sight glasses

If the oil level does not reach the MIN marking:u Top up with oil (see “Refilling oil”)
If the oil level exceeds the MAX marking:lDark colored oil may indicate a hazardous pump condition which
could cause personal injury.

If dark oil similar to the example shown is observed, you have tocontact the Busch Customer Service without delay.

Oil change
DANGER
If the vacuum pump has pumped gases that were contaminatedwith foreign bodies that are hazardous to health, the oil is also
contaminated with these foreign bodies.

u Check the condensate drain

There is a health hazard when changing contaminated oil.

Drain the oil (see “Draining the oil”)

There is also a danger to the environment.

Refilling oil

Wear protective clothing when replacing contaminated oil.

NOTE: Oil does not normally have to be refilled outside therecommended oil change intervals. A drop in the oil level indicates afault (see "Alarms and warnings" -> Busch PLC and Busch LCD).

Contaminated oil must be treated specially and must be disposedof according to applicable regulations.

Draining used oil
CAUTION
Only fill in oil through the oil filler opening.

NOTE: After switching off the vacuum pump at normal operating
temperature wait no more than 20 minutes before the oil is drained.
l

Make sure that the vacuum pump is switched off and cannot
accidentally be switched on againlMake sure that the vacuum pump is vented to atmosphericpressurelPut a drain tray underneath the oil drain plugs (ODP)lRemove the oil drain plugs (ODP)

Only unscrew the oil filler cap when the vacuum pump has beenswitched off.

lCarefully remove the drain plugslDrain the oil

The vacuum pump may only be switched on when the oil filler cap
is properly closed and tight.

lBecause of wear and tear on the seals replace the current drainplugs with new ones

We recommend submitting the pump to a leakage rate test in orderto ensure the pump is leak tight.

When the oil flow has stopped:

CAUTION
Danger of burns when the oil filler cap is open.
Danger of injuries when the oil filler cap is not screwed on properly.

u Close the oil drain plugs (ODP)

MaintenanceBC 1000 F PE

Page 160870771770 (En)l

Switch on the vacuum pump for a few seconds

Checking the silencer (accessory)l

Make sure that the vacuum pump is switched off and cannot
accidentally be switched on againlMake sure that the condensate does not collect at the exhaust of
the vacuum pumplRemove the oil drain plugs again and drain any remaining oillDrain the condensate and collect it in a containerl

Check that no metal swarf sticks to the magnet of the drain plug,clean if necessarylDispose of the condensate according to applicable environmental
protection regulationslRefit the oil drain plugs and tighten upl

Check the silencer regularly and clean it if necessarylDispose of the used oil in compliance with applicable regulations
CAUTION

Because the ends of the drain plugs are magnetic, metal swarf canstick to them. Always clean away this swarf when removing thedrain plugs.

Checking the leak-protection
non-return valve (accessory)l

Check the leak-protection non-return valve regularly and clean it ifnecessary
CAUTION

Because of wear and tear of the seals, it is recommended to replace
the drain plugs whenever the oil is changed.

Filling in new oillPrepare the quantity of oil needed (see “Oil type/ quantity”)
WARNING

Wear protective clothing when carrying out maintenance work on
the silencer and leak-protection non-return valve.
There could still be residues of contamination.

Overhaul

The use of chemically contaminated or polluted oil can lead tohazardous pump conditions which could cause personal injury.
NOTE: The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the various
oil sight glasses on the vacuum pump.
l

Make sure that the drain plugs have been fitted properly and thatthey do not leak
CAUTION
Only fill in oil through the oil filler opening.

lUnscrew the oil filler cap (OFP)l

Fill in oil up to the middle of the oil sight glassl

Make sure that the oil level lies between the MIN and MAX
markings on the oil sight glassesl

Make sure that the seals of the filler cap are not damaged and thatthey sit properly. Replace them if necessarylScrew on the filler cap again

CAUTION
Inappropriate maintenance work on the vacuum pump can damage
the pump.
Danger of explosion!
If requirements are not met, the vacuum pump may not be switchedon!
Should work exceed the dismantling work described in thishandbook, it may only be carried out by authorized persons.
DANGERIn case the vacuum pump has conveyed gases that have been
contaminated with foreign materials that are dangerous to health,the oil and condensates will also be contaminated.
These foreign materials can infiltrate the pores, recesses and otherinternal spaces of the vacuum pump.

Checking the cooling water

Danger to health when the vacuum pump is dismantled.

Checking the cooling water flow

Danger to the environment.

lPrior to shipping, the vacuum pump must imperatively bedecontaminated and the degree of contamination must be
documented in a declaration of decontamination (“Declaration ofContamination of Vacuum Equipment and Components”), which
can be downloaded from www.buschvacuum.com.

Check the cooling water flow regularly

If the flow drops, check for leaks
u Make sure that the specifications of the cooling water are
followed

Checking the nitrogen
Checking the nitrogen flowl

Check the nitrogen flow regularly

If the flow drops, check for leaks
u Make sure that the specifications of the nitrogen are followed

Checking the current consumptionl

Check the current intensity of the motor

An increased intensity is an indication for a fault (see“Troubleshooting”)

Busch service will only accept vacuum pumps that come with acompletely filled in and legally binding signed form.

Removal from service
Temporary removal from service
Before disconnecting the intake and exhaust lines and switching off thecooling water and nitrogen lines, make sure that the lines haveadjusted to atmospheric pressure

Recommissioningl

Make sure that the various protective elements, stoppers oradhesive tapes have been removed

BC 1000 F PE

Overhaul

0870771770 (En)Page 17l

Switch on the vacuum pump by following the procedure describedin the chapter “Installation and Commissioning”

Dismantling and Disposal of thevacuum pump
DANGERIn case the vacuum pump has conveyed gases that have been
contaminated with harmful foreign material which are harmful tohealth, the oil and the condensates will also be contaminated withharmful foreign material.
These foreign materials can infiltrate the pores, recesses and otherinternal spaces of the vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
During dismantling of the vacuum pump protective equipment andclothing must be worn.
Prior to shipping, the vacuum pump must imperatively bedecontaminated and the degree of contamination must be
documented in a declaration of decontamination (“Declaration of
Decontamination”), which can be downloaded fromwww.buschvacuum.com.
Used oil and condensates must be disposed of separately incompliance with applicable environmental regulations.
When the product has reached the end of its lifetime:–

decontaminate the vacuum pump
CAUTION

Only authorized personnel may carry out dismantling work on thevacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration of Decontamination” thatprovides information on possible dangers and appropriate measures.
If this form has not been filled in completely and signed, thevacuum pump may not be dismantled.

–

drain the oil
u dispose of the oil according to local environmental protection
regulations–

begin dismantling the vacuum pump
CAUTION

During dismantling of the vacuum pump protective equipment andclothing must be wornu dispose of the vacuum pump as scrap metal–

dispose of the individual parts of the machine according to local
regulations

A lithium battery is present inside the PLC:–

eliminate the lithium battery according to local and national
regulations in place, relating to environment

Removal from service

BC 1000 F PE

Page 180870771770 (En)Oil type/ quantity
Oil typel

Make sure that the oil type corresponds to specification:–

Busch YLC 250 B, Art. No. 0831 131 400 (0,5 l @ 1 kg)
WARNINGThe use of chemically contaminated or polluted oil can lead to hazardous pump conditions which could cause personal injury.

Oil quantity
The quantity of oil specified in the following table is of informative nature only. Check the oil level with the help of the various oil sight glasses on
the vacuum pump.
Pump typeDP pump (liters)

MB pump motor side (n°2 - liters)

MB pump gear side (n°1 - liters)

BC 1000 F PE

0,12 l

0,6 l

0,8 l

BC 1000 F PE

Oil type/ quantity

0870771770 (En)Page 19

Technical data
Technical data

BC 1000 F PE

Effective suction capacity

m3/h (cfm)

955 (562)

Ultimate pressure

Torr
mbar

7,0 x 10-4
1 x 10-3

Nominal motor rating

DP

50 Hz

kW

1,8

Nominal motor rating

MB

90 Hz

kW

2.9

kW
kW idle mode

1,5
0,4

DP

min-1

3600

MB

-1

5400

Noise level (EN ISO 2151)

dB(A)

< 62

Ambient temperature°C°F

0 - 4032 - 104

Electric power capacity at ultimate
pressure
Nominal motor speed
Nominal motor speed

bar

0.2

l/ minmin. 3.0 - 4.0

Cooling water pressurebar/ DP

2 ... 5

Cooling water temperature°C

10 - 25

Nitrogen requirementl/ min25 (CDA)

Nitrogen overpressure

bar

4,0

Weightkg

310

Maximale counter pressure
Cooling water requirement

DischargeminTechnical data

BC 1000 F PE

Page 200870771770 (En)EU Declaration of Conformity
This Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the
Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer.
When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery(this can be the operating company, too) must conduct the conformity assessment process for the superordinate
machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.
Busch Manufacturing Korea, Ltd.
The manufacturer
189-51, Soicheon-ro, Majang-myun
Icheon-si, Gyunggi-do, 467-813
Republic of Korea

declares that the machine(s): COBRA BC 1000 F PE

fulfil(s) all the relevant provisions from European directives:– ‘Machinery’ 2006/42/EC– ‘Electromagnetic Compatibility’ 2014/30/EU– ‘RoHS’ 2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment (incl. all related applicable amendments)
and comply(-ies) with the following designated standards that have been used to fulfil those provisions:Standard
EN ISO 12100 : 2010

Title of the Standard
Safety of machinery - Basic concepts, general principles of design

EN ISO 13857 : 2019

Safety of machinery - Safety distances to prevent hazard zones being reachedby the upper and lower limbs

EN 1012-1 : 2010
EN 1012-2 : 1996 + A1 : 2009

Compressors and vacuum pumps - Safety requirements - Part 1 and Part 2

EN ISO 2151 : 2008

Acoustics - Noise test code for compressors and vacuum pumps - Engineering
method (grade 2)

EN 60204-1 : 2018

Safety of machinery - Electrical equipment of machines - Part 1: General requirements

EN IEC 61000-6-2 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Immunity for industrial environments

EN IEC 61000-6-4 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Emission standard
for industrial environments

EN ISO 13849-1 : 2015 (1)Safety of machinery - Safety-related parts of control systems - Part 1: Generalprinciples for design(1)
In case control systems are integrated.
Legal person authorized to compile the technical fileand authorized representative in the EU(if the manufacturer is not located in the EU):
Icheon-si, 14.05.2021

Seung-hwa Yoo, General Director

Busch Dienste GmbH
Schauinslandstr. 1
DE-79689 Maulburg

UK Declaration of Conformity
This Declaration of Conformity and the UKCA-mark affixed to the nameplate are valid for the machine within the
Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer.
When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery(this can be the operating company, too) must conduct the conformity assessment process for the superordinate
machine or plant, issue the Declaration of Conformity for it and affix the UKCA-mark.
Busch Manufacturing Korea, Ltd.
The manufacturer
189-51, Soicheon-ro, Majang-myun
Icheon-si, Gyunggi-do, 467-813
Republic of Korea

declares that the machine(s): COBRA BC 1000 F PE

fulfil(s) all the relevant provisions from UK legislations:– Supply of Machinery (Safety) Regulations 2008
– Electromagnetic Compatibility Regulations 2016
– Restriction of the use of certain hazardous substances in electrical and electronic equipment Regulations 2012
and comply(-ies) with the following designated standards that have been used to fulfil those provisions:Standard
BS EN ISO 12100 : 2010

Title of the Standard
Safety of machinery. Basic concepts, general principles of design. Risk assessment and risk reduction.

BS EN ISO 13857 : 2019

Safety of machinery - Safety distances to prevent hazard zones being reachedby the upper and lower limbs.

BS EN 1012-1 : 2010
Compressors and vacuum pumps. Safety requirements. Air compressors and
BS EN 1012-2 : 1996 + A1 : 2009 vacuum pumps.
BS EN ISO 2151 : 2008

Acoustics - Noise test code for compressors and vacuum pumps - Engineering
method (grade 2)

BS EN 60204-1 : 2018

Safety of machinery. Electrical equipment of machines. General requirements.

BS EN IEC 61000-6-2 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Immunity standard
for industrial environments.

BS EN IEC 61000-6-4 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Emission standard
for industrial environments.

BS EN ISO 13849-1 : 2015 (1)Safety of machinery. Safety-related parts of control systems. General principles
for design.
(1)
In case control systems are integrated.
Legal person authorized to compile the technical fileand importer in the UK(if the manufacturer is not located in the UK):
Icheon-si, 14.05.2021

Seung-hwa Yoo, General Director

Busch (UK) Ltd
30 Hortonwood
Telford - UK

NoteBusch
Vacuum Solutions
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