Pfeiffer Vacuum WS 5100 WW2D User manual

OPERATING INSTRUCTIONS EN
PW 1016 BEN/A (2020-10)
PUMPING STATION WS 5100 WW2D
Part No.: PP S30 596 A

Contents
Contents
2
1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Improper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Unpacking / repacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Layout and position of the pumping station . . . . . . . . . . . . . . . . . . . 9
4.3 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Preparatory work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.4 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 Recommendations for the operator . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Before switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3 Switching on and off the pumping station . . . . . . . . . . . . . . . . . . . . 14
7 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1 Maintenance intervals and responsibilities . . . . . . . . . . . . . . . . . . . 16
8.2 Removal of components for their maintenance . . . . . . . . . . . . . . . 17
9 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.1 Shutting down for longer periods . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.2 Re-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

About this manual
3
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning of
the designated product and provides the most important information for safe use of the
unit. The description follows applicable EU guidelines. All information provided in this op-
erating manual refer to the current state of the product's development. The documenta-
tion remains valid as long as the customer does not make any changes to the product.
Up-to-date operating instructions can also be downloaded from www.pfeiffer-vacuum.de.
Applicable docu-
ments
*can also be downloaded from www.pfeiffer-vacuum.de
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating manuals are the result of risk evalu-
ations and hazard analyses and are oriented on international certification standards as
specified by UL, CSA, ANSI Z-535, Semi-S1, ISO 3864 and DIN 4844. In this document,
the following hazard levels and information are considered:
NOTE
Duty to inform
In addition to the present operating instructions for the entire pumping station, all notes
in the operating instructions for the individual pumps must also be observed.
The operator is obliged to inform each operator that they must also have read and
understood the individual operating instructions of the installed individual pumps.
Pumping station WS 5100 WW2D Operating instructions
Declaration of conformity Part of this document
Component operating instructions*
DANGER
Immediate danger
Death or very severe injuries occur.
WARNING
Possible danger
Death or injuries may occur.
CAUTION
Possible danger
Medium to slight injuries may occur.
NOTE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.

About this manual
4
Pictogram definitions
Instructions in the
text
Work instruction: here you have to do something.
Abbreviations Okta: Roots pump
Hena: Rotary vane pump
HV: Vacuum safety valve (with shut-off and venting function)
STP: Dust separator
SAS: Dust separator
OME: Oil mist filter
ODK: Oil mist filter with return unit
EVB: Angle valve
VFS 010: Power failure venting unit
KS: Condensor
KAS: Condensate separator
Symbols used The following symbols are used consistently throughout in all illustrations:
Roots pump (Okta)
Rotary vane pump
Prohibition of an action to avoid any risk of accidents, the disregarding
of which may result in serious accidents.
Warning of a displayed source of danger.
Command to perform an action or task associated with a source of dan-
ger, the disregarding of which may result in serious accidents.

Safety
5
2Safety
2.1 Safety precautions
• Do not expose any body parts to the vacuum.
• Observe the safety and accident prevention regulations.
• Check regularly that all safety precautions are being complied with.
• Do not carry out any unauthorised modifications or conversions to the pumps.
• Depending on the operating and ambient conditions, the surface temperature of the
pumps may rise above 70°C. Use suitable finger guards if necessary.
• When returning the components to us please note the instructions in the Service sec-
tion.
• Adjust the customer's process/operation mode clearly to the capacity of the pumping
station.
• The electrical connection may only be made by an expert electrician according to
VDE 0105 in accordance with the regulations of VDE 0100.
2.2 Protective equipment
Determined situations concerning the handling of vacuum pumps require wearing of per-
sonal protective equipment. The owner, respectively the employer are obligated to pro-
vide an adequate equipment to any operating persons.
NOTE
Duty to inform
Each person involved in the installation, operation or maintenance of the vacuum pump
must read and observe the safety-related parts of these operating instructions.
The operator is obligated to make operating personnel aware of dangers originating
from the pumping station, the pumped medium and the entire system.
NOTE
Installation and operation of accessories
Pfeiffer Vacuum pumps can be equipped with a series of adapted accessories. The
installation, operation and maintenance of connected devices are described in detail in
the operating instructions of the individual components.
For information on the operating instructions of components, see "Accessories".
Use original accessory parts only.
DANGER
Danger to health by hazardous substances during maintenance or installation
Depending on the process vacuum pumps, components or operating fluids can be con-
taminated by toxic, reactive or radioactive substances.
Wear adequate protective equipment during maintenance and repairs or in case of
reinstallation.
CAUTION
Risk of injury through hot surfaces
Vacuum pumps can become hot during operation.
Allow the pump to cool before maintenance and repairs.
If necessary wear protective gloves according to EN 420.

Safety
6
2.3 Proper Use
• The pumping station is intended for evacuating vacuum chambers to pressure values
in the fine vacuum range.
• Only use the pumping station for creating vacuum.
• Only use the pumping station for evacuation of dry and inert gases; other applications
only after consultation with Pfeiffer Vacuum.
• Use suitable gases (process-specific) such as sealing gas, flushing gas and cooling
gas at the inlets of the pumping station components.
• Installation, operating and maintenance regulations must be complied with.
• Other accessories than those described in this manual must not be used without the
agreement of Pfeiffer Vacuum.
2.4 Improper use
Improper use will cause all claims for liability and guarantees to be forfeited. Improper use
is deemed to be all use for purposes deviating from those mentioned above, especially:
• evacuation of corrosive and reactive gases; special conditions of use only after con-
sultation with Pfeiffer Vacuum.
• evacuation of explosive media or of oxygen at greater than atmospheric concentration.
• operation of the pumping station in potentially explosive areas.
• operation of the pump with open vacuum flange.
• pumping of gases containing impurities such as particles, dusts and condensate; note
the vapour compatibility levels of the pump.
• pumping of substances that tend to sublime.
• use of the pumping station to generate pressure.
• pumping of liquids.
• connection to pumps or units which are not suitable for this purpose according to their
operating instructions.
• connection to units which have exposed voltage-carrying parts.
• the evacuation of gases that may form adherent deposits or condensate in the suction
chamber.
WARNING
Increased noise emission!
Increased noise emission can occur within a limited area surrounding the vacuum
pump.
Provide noise protection or
wear hearing protection.
NOTE
CE conformity
The declaration of conformity becomes invalid if the operator modifies the original
product or installs additional components!
Following installation into a plant and before commissioning, the operator must check
the entire system for compliance with the valid EU directives and reassess it accord-
ingly.
NOTE
Compliance with the following instructions for the operator is part of the proper use of
the pumping station.

Transport and storage
7
3 Transport and storage
3.1 Unpacking / repacking
For transport, the pumping station is fastened to a pallet in a slip-free manner, covered
with a plastic sheet and secured in wooden holders or wooden crates.
3.2 Transport
General notes
Remove the locking cap from the vacuum and exhaust flange immediately before con-
necting!
– Check the cone strainer, paying attention to the o-ring.
Remove desiccant from the area of the vacuum flange and exhaust flange on the pump
after removing the sealing caps!
Notes on the pump-
ing station
The pumping station comprises a single frame.
Only raise the pumping station at the lifting eyes provided on the frame or transport us-
ing a forklift truck.
– Do not lift pumping station by the intake flange of one of the roots pumps or the ro-
tary vane pumps.
NOTE
Disposal of packaging materials
The packaging materials cannot be reused after unpacking.
Dispose of them according to the applicable regulations.
WARNING
There is a risk of injury if the system is not transported properly.
Danger to life from falling or protruding loads if the system is not properly secured to
lifting devices or is not transported properly.
Use suitable lifting devices and tools.
Ensure that the weight is distributed evenly (danger of tipping).
Pay attention to attachments and superstructures.
Test the hanging for high center of gravity.
Never stand under suspended loads.

Transport and storage
8
Fig. 1: Lifting eyes
3.3 Storage
The pumping station is suitable for storage. Enclosed, dry and dust-free rooms are suita-
ble storage locations.
Check that all the openings on the pumps are securely closed.
Store the pumping station only indoors, preferably at temperatures between +5°C and
+40°C.
– For a longer period of storage, leave the pumping station in its original packaging or
cover with a plastic sheet.
– After a period of storage longer than one year, it is recommended to carry out main-
tenance and change the operating fluid and lubricants prior to commissioning.
1 Lifting eyes
1
1
1
1
NOTE
Note the risk of corrosion for storage
Storage of vacuum pumps can lead to corrosion and aging of lubricants/operating flu-
ids and elastomer seals.
Observe the notes in the operating manuals for the individual components.
Change lubricants and operating fluids before restarting operation.

Product description
9
4 Product description
4.1 Product identification
To correctly identify the product when communicating with Pfeiffer Vacuum, always have
the information from the rating plate available.
• Pumping station type and article number
• Serial number
• Voltage and rated current
• Wiring diagram
• Date of manufacture
• Weight
For component-specific data, please see the separately installed rating plates for the
pumps and motors.
Scope of delivery Pumping station components mounted on a frame ready for connection, with all neces-
sary internal connecting lines including blind flanges on the intake and pressure side.
• 1 x Roots pump Okta 6000 M with motor
• 1 x Roots pump Okta 1000 M with motor
• 2 x Rotary vane pump DUO 65 M with motor
• 2 x OME 40 M Oil mist eliminator
• TPG 362 Display and control unit
• PCR 280 Pirani/Capacitance transmitter
• Electrical equipment including control cabinet
• Lubricant P3
• Operating manuals for pumping station and individual components
4.2 Layout and position of the pumping station
Fig. 2: Pumping station front view
1 Control cabinet
2 Base frame
3 OME 40 M
4 Gas outlet
5 DUO 65 M
6 Okta 1000 M
7 Okta 6000 M
8Gasinlet
1
2
8
7
6
5
3
4

Installation
10
Fig. 3: Pumping station rear view
4.3 Function
The pumping station is intended for evacuating vacuum chambers to pressure values in
the medium vacuum range.
5Installation
5.1 Installation location
Observe the following requirements when setting up the pumping station:
• Consider the load-bearing capacity of the installation site.
• Maximum installation altitude 2000 m (above mean sea level)
• Permissible ambient temperature: +12 ... 40°C
• Maximum relative humidity 85%
The installation location is to be chosen so that pumping station components are freely
accessible for inspection and servicing.
– Note set-up conditions for the individual components.
Always place the pumping station on a firm, even surface.
Protect pumping station against air draughts and direct atmospheric exposure.
5.2 Preparatory work
Before installing and commissioning the system, the installation location must be
equipped.
1 2nd Gas outlet
2 2nd OME 40 M
3 2nd DUO 65 M
32
1

Installation
11
The pumping station is delivered mounted on a base frame and ready for connection.
Fill pumping station components with operating fluids and lubricants;
– Quantity and type in accordance with the rating plate.
Remove protective cover from intake and exhaust flange.
Provide process-specific and pump-specific media supply and connect.
Ensure process-specific and pump-specific media disposal.
5.3 Assembly
NOTE
Use approved operating fluids only!
The use of operating fluids that have not been approved by Pfeiffer Vacuum shall result
in a limited warranty. In such cases, it is not possible to guarantee that product-specific
performance data will be achieved.
Prior consultation is required before using other application-specific operating fluids.
NOTE
Ensure media supply!
Note information on supply and disposal of relevant media to be provided such as elec-
tricity, cooling water and inert gas.
See rating plate
See technical data for individual components
NOTE
Pay attention to the operating fluid level!
Both too low a level and too high a level can lead to damage to the pumps.
Check the level of the operating fluid at gauge glasses and make sure that the oper-
ating fluid level is roughly at the middle mark of the gauge glasses.
CAUTION
Risk of tripping!
Risk of tripping when working in the area of the pumping station.
Place supply lines to and from the pumping station in such a way that no tripping haz-
ards occur.
NOTE
Electrostatic unloading procedures
Damage of safety-relevant parts or releasing unintentional machine movements.
Carry out installation works at the pumping station only by EMC trained specialists
according to the instructions of the parts manufacturers.
NOTE
Assembly of the pumping station
Further assembly of the pumping station is not necessary, as it is delivered complete
on a frame and are ready to connect. The frame only needs to be anchored to the floor.

Installation
12
5.4 Connections
Connecting the vac-
uum side
The connection between the pumping station and the vacuum chamber should be kept
as short as possible and should have at least the nominal diameter of the pump flange.
Use a greater nominal diameter on line lengths > 5 m.
Lay the pipes in such a way that the roots pump will not be subjected to any mechanical
tension.
– Suspension components should be integrated into the piping.
– Ensure that mating flanges are in a parallel position.
Clear welded lines of any welding scales, loose parts etc. before installation.
If dust appears in the intake medium, a dust filter must be installed. When extracting va-
pours we recommend using condensate separators on the intake side and on the exhaust
side. Please enquire for details.
WARNING
There is a risk of injury if the system is not transported properly
Danger to life from falling or protruding loads if the system is not properly secured to
lifting devices or is not transported properly.
Use suitable lifting devices and tools.
Ensure that the weight is distributed evenly. Avoid danger of tipping.
Pay attention to attachments and superstructures.
Test the hanging for high center of gravity.
Never stand under suspended loads.
WARNING
Exposed, rotating rolling pistons!
Fingers and hands can become crushed when the intake flange is open.
Keep all body parts out of operating range of the rolling pistons.
Use a wooden handle to rotate the rolling pistons during cleaning.
NOTE
Danger of intake of solid particles!
Even in clean processes, fouling from the system must be anticipated during initial
commissioning.
Use a suitable start-up strainer at the intake connection (see accessories).
Ensure that this strainer is only removed when the risk of solid particles entering the
pump can be excluded.
Note loss of pumping speed if necessary.

Operation
13
Connecting the ex-
haust side
Choose the cross-section of the exhaust line to be at least the size of the nominal con-
nection diameter of the vacuum pump's exhaust connection.
Piping to the pumping station must be suspended or supported.
– Physical forces from the piping system must not be allowed to act on pumping sta-
tion.
Lay piping from the pumping station sloping downward so that no condensate can flow
back into the pumps; otherwise fit a condensate separator.
– If an air trap is created in the system, then a device for draining condensation water
must be provided at the lowest point.
Connecting to the
mains power supply
Connect the pumping station electrically according to the information in the circuit dia-
gram.
6 Operation
6.1 Recommendations for the operator
• The service personnel must be advised in regular training courses on the necessity for
wearing the personal protective equipment. Working without protective equipment can
lead to serious and also lasting health damages.
CAUTION
High pressure in the exhaust line!
Danger of damage to the seals and danger of the pump bursting.
Install the line without shut-off valves on the exhaust side.
If there is danger of a build-up of excess pressure (> 1500 hPa abs.) in the lines, ob-
serve all official accident prevention safety regulations.
WARNING
Emission of toxic substances from the exhaust!
Danger of poisoning from emitted gases or vapours, which can be detrimental to health
and/or can pollute the environment, depending on the particular application.
Comply with the applicable regulations when working with toxic substances.
Only officially approved filter systems may be used to separate and remove these
substances.
DANGER
Voltage-bearing elements
Danger to life from electric shock.
The electrical connection can be carried out only by trained and authorised electri-
cians according to the information in the circuit diagram.
Disconnect the power supply and secure it against being switched back on.
Ensure the system is adequately earthed.

Operation
14
• The operator advises in recurring training courses the operating, maintenance, and
service personnel in the correct behaviors while handling the pumping station. He ex-
plains that damages to persons and systems can occur, if the pumping station is not
operated correctly. To this in particular belong also information concerning the residual
risks.
• Before maintenance and repairs the pumping station is shut down. The main switch,
provided by the operator, is switched off by the operational, technically responsible su-
pervisor and secured against restarting with a lock. The key is taken off and carried.
• After completion of the work and before restarting, the responsible supervisor makes
sure, that this is possible without endangerment of persons or equipment. Before
switching on a well-timed and clear warning must be given to all involved persons.
6.2 Before switching on
The instructions also apply for every time operation is restarted after shutting down for
storage, maintenance and inspection.
Check operating fluid and lubricant levels in the pumps and top up if necessary.
Check sealing oil chamber on Roots pump (oiler).
Check that all lines are properly connected.
Check process-specific and pump-specific media supplies.
Verify direction of rotation of pumps as described in the operating manuals for the in-
dividual components
Operate shut-off units in the exhaust line in such a way that they open before or at the
same time as starting the pump.
6.3 Switching on and off the pumping station
Fig. 4: Control elements cabinet
1 TPG 362
2 Key switch "Local/Remote" (-12S1)
3 Selector switch "Man/OFF/Auto" (-12S2)
4 Button "Pumpe P2 On" (-16S1.1)
5 Button "Pumpe P1.2 On" (-15S5.1)
6 Button "Pumpe P1.1 On" (-15S1.1)
7 Button "Pumpe P3 On" (-16S5.1)
8 Main switch
1
6
8
5
2
3
4
7

Operation
15
For Local Operation with disabled automatic mode
In local operation with disabled automatic mode, the pumping station is operated via the
control elements on the control cabinet. In this case, the responsibility for switching the
pumping station on and off lies with the operator.
Switch on the pumping station at main switch -10Q1.
– Error "Phase sequence controller" (-10F4) prevents control release.
Turn key switch Local/Remote "-12S1" to "Local" position.
Turn selector switch Man/OFF/Auto "-12S2" to "Manual" position.
Press button "-15S1.1" to turn Pump P1.1 (DUO 65 M) on. Alternatively or additionally,
press button "-15S5.1" to turn Pump P1.2 (DUO 65 M) on.
– The delay time until the release of pump P2 (Okta 1000 M) starts on the timing relay
15K8.
After release press button "-16S1.1" to turn Pump P2 on.
– The delay time until the release of pump P3 (Okta 6000 M) starts on the timing relay
16K2.
After release press button "-16S5.1" to turn Pump P3 on.
– Switch off the pumps erfolgt in reverse order using the buttons "-16S5.2" (P3),
"-16S1.2" (P2), "15S5.2" (P1.2) and "15S1.2" (P1.1).
For Local Operation with enabled automatic mode
In local operation with enabled automatic mode, the pumping station is operated via the
control elements on the control cabinet too. In this case, the responsibility for switching
the pumping station on and off lies with the operator too.
Switch on the pumping station at main switch -10Q1.
– Error "Phase sequence controller" (-10F4) prevents control release.
Turn key switch Local/Remote "-12S1" to "Local" position.
Turn selector switch Man/OFF/Auto "-12S2" to "Automatic" position.
Press button "-15S1.1" to turn Pump P1.1 (DUO 65 M) on. Alternatively or additionally,
press button "-15S5.1" to turn Pump P1.2 (DUO 65 M) on.
– The delay time until the release of pump P2 (Okta 1000 M) starts on the timing relay
15K8.
– After release the pump P2 is switched on automatically, after the switch point SP1
is reached at the TPG.
– The delay time until the release of pump P3 (Okta 6000 M) starts on the timing relay
16K2.
– After release the pump P3 is switched on automatically, after the switch point SP2
is reached at the TPG.
For Remote Operation
For remote operation, a corresponding connection must be made in advance from the
pumping station to the higher-level control unit as specified in the circuit diagram.
Close contact 1->2 at -X7 in the control cabinet.
Connect a customer control unit at dry contact -X7.3 to -X7.14 as specified in the circuit
diagram.
Switch on the pumping station at main switch 10Q1.
– Error "Phase sequence controller" (10F4) prevents control release.
Turn key operated switch Local/Remote "-12S1" to Remote position.
– The control of the individual components of the pumping station is now carried out
by the customer control unit.
– Depending on the operating conditions of the pumping station, it must be ensured
via the customer control unit that the pumping station does not restart automatically
when the voltage returns (e.g. after a power failure).
General hints concerning operation
Lamps "-13H1" to "-13H8" display the status of the pumping unit.

Malfunctions
16
Press "Lamp test" button (-13S1) to check the functionality of all lamps.
7 Malfunctions
If faults occur at the pumping station observe the instructions in the operating manuals of
the installed components.
8 Maintenance
Each pumping station on which maintenance work is to be undertaken must first be
switched off and flooded to atmospheric pressure.
Then allow the pumping station to cool down adequately
8.1 Maintenance intervals and responsibilities
• Carry out the required maintenance on the components of the pumping station in ac-
cordance with the instructions in the individual operating manuals.
• Clarify shorter maintenance intervals for extreme loads or impure processes with
Pfeiffer Vacuum Service.
WARNING
Contamination of parts and operating fluid by pumped media is possible.
Poisoning hazard through contact with materials that damage health.
In the case of contamination, carry out appropriate safety precautions in order to pre-
vent danger to health through dangerous substances.
Decontaminate affected parts before carrying out maintenance work.
NOTE
Disclaimer of liability
Pfeiffer Vacuum accepts no liability for personal injury or material damage, losses or
operating malfunctions due to improperly performed maintenance. The liability and
warranty entitlement expires.
WARNING
Danger of electric shock
The pumping station is only free of voltages when the mains plug has been discon-
nected.
Switch off the master switch and disconnect the mains plug before all work.
Secure against unintentional restarting.
NOTE
Release of the connecting screws between backing and Roots pump because of
vibrations during operation
Roots pump moves and falls down.
Control connecting screws regularly during maintenance work and tighten with a
tightening torque of 40 - 50 Nm.

Decommissioning
17
• For all other cleaning, maintenance or repair work, please contact your Pfeiffer Vacu-
um service location.
8.2 Removal of components for their maintenance
In some cases, components may need to be dismantled from the pumping station so that
customers can carry out necessary maintenance work on them (they should then be re-
assembled in reverse order).
9 Decommissioning
9.1 Shutting down for longer periods
If the pumping station should be shut down for longer than a year:
Remove the pumping station from the system, if necessary.
Only store the pumping station indoors at an ambient temperature between +5°C and
+40°C.
In rooms with moist or aggressive atmospheres, the pumping station must be airproof
shrink-wrapped in a plastic bag together with a bag of dessicant.
CAUTION
High weight of backing pump when dismounting and mounting
Body parts can become crushed between backing pump and pumping station frame.
Use lifting device for lifting the backing pump.
If necessary wear protective gloves according to directive EN 420.
Wear safety shoes with steel toe cap according to directive EN 347.
NOTE
Refer to the notes on Proper Use of the unit!
The pumping station must only be operated as a complete unit. Disassembly and oper-
ation of individual pumping station components is deemed to be improper use.
In this case the declaration of conformity will become invalid.
WARNING
Contamination of parts and operating fluid by pumped media is possible.
Poisoning hazard through contact with materials that damage health.
In the case of contamination, carry out appropriate safety precautions in order to pre-
vent danger to health through dangerous substances.
Decontaminate affected parts before carrying out maintenance work.

Service
18
9.2 Re-starting
Check pumping station for contamination and moisture.
If necessary, have Pfeiffer Vacuum Service clean the pumping station completely.
Installation and commissioning in accordance with the operating instructions.
9.3 Disposal
Products or parts thereof (mechanical and electrical components, operating fluids, etc.)
may cause environmental burden.
Safely dispose of the materials according to the locally applicable regulations.
10 Service
Pfeiffer Vacuum offers first-class service!
• Maintenance/repairs on site by Pfeiffer Vacuum field service
• Maintenance/repairs in a nearby service center or service point
• Fast replacement with exchange products in mint condition
• Advice on the most cost-efficient and quickest solution
Detailed information and addresses at: www.pfeiffer-vacuum.de (Service).
Maintenance and repairs in Pfeiffer Vacuum ServiceCenter
The following steps are necessary to ensure a fast, smooth servicing process:
Download the forms "Service Request" and "Declaration on Contamination".1)
Fill out the "Service Request" form and send it by fax or e-mail to your Pfeiffer Vacuum
service address.
Include the confirmation on the service request from Pfeiffer Vacuum with your ship-
ment.
Fill in the contamination declaration and enclose it in the shipment (required!).
Dismantle all accessories.
Drain operating fluid/lubricant.
Drain cooling medium, if used.
Send the pump or unit in its original packaging if possible.
Sending of contaminated pumps or devices
No units will be accepted if they are contaminated with micro-biological, explosive or ra-
dioactive substances. “Hazardous substances” are substances and compounds in ac-
cordance with the hazardous goods directive (current version). If pumps are contaminat-
ed or the declaration on contamination is missing, Pfeiffer Vacuum performs
decontamination at the shipper's expense.
Neutralise the pump by flushing it with nitrogen or dry air.
Close all openings airtight.
Seal the pump or unit in suitable protective film.
NOTE
Note the risk of corrosion for storage
Storage of vacuum pumps can lead to corrosion and aging of lubricants/operating flu-
ids and elastomer seals.
Observe the notes in the operating manuals for the individual components.
Change lubricants and operating fluids before restarting operation.
1) Forms under www.pfeiffer-vacuum.de

Spare parts
19
Return the pump/unit only in a suitable and sturdy transport container and send it in
while following applicable transport conditions.
Service orders
All service orders are carried out exclusively according to our repair conditions for vacu-
um units and components.
11 Spare parts
For information on the individual components, please consult the corresponding operat-
ing manuals.
12 Accessories
Further detailed accessories are contained in the Pfeiffer Vacuum printed or Online Cat-
alogue.
Special accessories, such as soundproof hoods, are available on request.
13 Technical data
You will find the technical data in the drawings enclosed in part 2 of the overall documen-
tation.
NOTE
Service work should be carried out by qualified personal only!
Pfeiffer Vacuum is not liable for any damage to the pump resulting from work carried
out improperly.
Take advantage of our service training programs; additional information at
www.pfeiffer-vacuum.de.
Please state all the information on the pump rating plate when ordering spare parts.

Technical data
20