Elmo Rietschle V Series User manual

V
V Serie
V Series
Drehschieber
Rotary Vane
Operating Instructions
V-VCA 25 / V-VCE 25
Vacuum pump
Translation of the original Operating Instructions
Keep in a safe place for future reference!
Edition: 2.0 ·26.07.2023 ·BA 150-3-EN

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Table of contents
Table of contents
1 Foreword................................................................... 4
1.1 Principles ................................................................... 4
1.2 Target group ................................................................ 4
1.3 Supplier documentation and accompanying documents .............................. 4
1.4 Directives, standards, laws ..................................................... 4
1.5 Copyright ................................................................... 4
1.6 Disclaimer .................................................................. 5
1.7 Technical terms and abbreviations ............................................... 5
2 Safety ..................................................................... 6
2.1 General..................................................................... 6
2.2 Labelling of warnings .......................................................... 6
2.3 Symbols and meaning ......................................................... 6
2.4 Intended use ................................................................ 8
2.5 Inadmissible operating modes................................................... 8
2.6 Personnel qualification and training............................................... 8
2.7 Personal protective equipment .................................................. 9
2.8 Safety-conscious working ...................................................... 9
2.9 Responsibilities of the user ..................................................... 10
2.10 Hazardous substances ........................................................ 10
2.10.1 Conveying media ..................................................... 10
2.10.2 Auxiliary materials and lubricant.......................................... 10
2.11 Safety equipment, monitored functions............................................ 11
2.12 Emergency Stop / Emergency Off ................................................ 11
2.13 Protection of environment ...................................................... 11
3 Transport and storage........................................................ 12
3.1 Transport ................................................................... 12
3.1.1 Unpack and check the as-delivered condition ............................... 12
3.1.2 Lifting and transporting................................................. 12
3.2 Storage..................................................................... 13
3.2.1 Ambient conditions during storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Product overview and functioning .............................................. 14
4.1 Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Data plate................................................................... 15
4.3 Description.................................................................. 15
4.4 Fields of application........................................................... 16
5 Installation ................................................................. 17
5.1 Preparation of installation ...................................................... 17
5.2 Installation .................................................................. 17
5.3 Connection of pipes........................................................... 18
5.4 Check lubricating oil .......................................................... 18
5.5 Connection of motor .......................................................... 19

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Table of contents
6 Commissioning and decommissioning ...................................... 20
6.1 Start-up .................................................................... 20
6.1.1 Installation check ..................................................... 20
6.1.2 Check the rotation direction ............................................. 21
6.1.3 Set operating range VCE 25 (09) ......................................... 21
6.2 Operation ................................................................... 22
6.2.1 Check the oil level..................................................... 22
6.3 Decommissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3.1 Decommissioning of the machine ........................................ 22
6.3.2 Storing the machine ................................................... 22
6.4 Recommissioning............................................................. 22
7 Maintenance and repair....................................................... 23
7.1 Ensure operational safety ...................................................... 23
7.2 Maintenance table ............................................................ 24
7.3 Preparing maintenance works ................................................... 24
7.4 Clean vacuum pump .......................................................... 25
7.5 Cleaning of air filter ........................................................... 25
7.5.1 Clean the mesh filter................................................... 26
7.5.2 Clean the filter disc of the gas ballast valve ................................. 26
7.6 Lubricating Oil ............................................................... 26
7.6.1 Refilling of oil ........................................................ 27
7.6.2 Oil change........................................................... 27
7.7 Oil separator insert............................................................ 28
7.8 Motor and coupling ........................................................... 29
7.8.1 Motor .............................................................. 29
7.8.2 Coupling ............................................................ 29
7.9 Repair / service .............................................................. 30
7.10 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8 Errors...................................................................... 32
8.1 Table of malfunctions.......................................................... 32
9 Disassembly and disposal..................................................... 35
9.1 Disassembly................................................................. 35
9.2 Disposal .................................................................... 35
10 Technical Data .............................................................. 36

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Foreword
1 Foreword
1.1 Principles
These Operating Instructions:
• are a part of the following oil-flooded rotary vane vacuum pumps models V-VCA25 and V-VCE25.
• describe how to use these pumps safely and properly in all life phases and they apply to all responsible
persons
• Include general information on installation, commissioning, maintenance and inspection
• Must be available at the place of application
Figures presented in these Operating Instructions serve for better understanding and can deviate from the
components installed. This does not influence the validity of the details set out in the instructions.
1.2 Target group
Target group for these Operating Instructions are the technically trained specialist personnel which have
been qualified by appropriate training and instruction.
1.3 Supplier documentation and accompanying documents
Document Contents No.
Supplier documentation
Operating Instructions BA 150-3
Declaration of Conformity C 0043
Declaration of no-objection 7.7025.003.17
Spare parts list Spare parts documents E 150-3
Data sheet Technical data and characteristic curves D 150-3
Info sheet Water vapour compatibility for oil-flooded vacuum pumps I 200
Info sheet Storage guideline for machines I 150
Info sheet Storage guideline for lubricants I 100
The documents can be ordered via our Service or downloaded using the following link:
• http://www.gd-elmorietschle.com
1.4 Directives, standards, laws
See Declaration of Conformity.
1.5 Copyright
These Operating Instructions are intended for the customer's internal purposes.
Unless expressly permitted, passing on to third parties, copying of these documents, except for internal pur-
poses, as well as using and providing their contents to third parties, even in excerpts, is prohibited.
Contraventions will lead to claims for damages.

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Foreword
1.6 Disclaimer
Please note that we cannot accept any liability for damages arising from failure to observe the instructions.
Gardner Denver Schopfheim GmbH does not assume liability for the following cases:
• Not intended use
• Not complying with these instructions
• Nonobservance of all documents and specifications belonging to the overall documentation
• Erection, operation, maintenance and repair by insufficiently qualified staff
• Modification or removing of the part or serial number
• Using spare parts that have not been approved by Gardner Denver Schopfheim GmbH
• Unauthorised modifications to the machine or the accessories supplied by Gardner Denver Schopfheim
GmbH
Please, also consider that repairs are only allowed to be done by authorised workshops using original spare
parts; otherwise our guarantee will expire.
1.7 Technical terms and abbreviations
Term Explanation
Machine Pump and motor combination ready for connection
Motor Pump drive motor
Vacuum pump Machine for creating underpressure (vacuum)
Rotary vane Design or operating principle of the machine
Pumping capacity Flow rate of a vacuum pump referred to the condition in the inlet connec-
tion, specified in m³/h
Final pressure (abs.) The maximum vacuum that a pump reaches while the inlet opening is
closed, specified as absolute pressure in mbar (abs)
Permanent vacuum Vacuum or the inlet pressure range, at which the pump operates in con-
tinuous operation.
The permanent vacuum or inlet pressure is ≥ than the final vacuum and <
than the atmospheric pressure.
Noise emission Noise emitted at a specific loading state indicated as a numeric value,
sound pressure level dB(A) as per EN ISO 3744.
Abbreviation Meaning
Fig. Figure
Tab. Table
V-VCA, V-VCE Vacuum pump type

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Safety
2 Safety
The manufacturer is not responsible for damage due to non-observance of the whole documentation.
2.1 General
These operating instructions contain basic instructions for installation, commissioning, maintenance and in-
spection work which must be obeyed to ensure the safe operation of the machine and prevent physical and
material damage.
Observe the safety instructions in all chapters.
The operating instructions must be read by the responsible technical personnel / user before installing and
commissioning and must be fully understood. The contents of the operating instructions must always be
available on site for the technical personnel / user. Instructions attached directly to the machine must be
obeyed and must always remain legible. For example, this applies:
• Symbols for connections
• Data plate and motor data plate
• Information signs and warning plates
The data plates on the vacuum pump may not be removed, even if the machine is resold. For all queries
about the product, please always quote the serial number.
The operating company is responsible for observing local regulations.
2.2 Labelling of warnings
Warning Danger level
DANGER ...warns of a hazardous situation, which will lead to death or life-threatening
injuries if not avoided.
WARNING ...warns of a potentially dangerous situation, which can lead to death or seri-
ous injuries if not avoided.
CAUTION …warns of a hazardous situation, which can cause slight or medium personal
injuries if not avoided.
NOTICE ...warns of a situation that can cause damages to or destruction of material
assets if not avoided.
2.3 Symbols and meaning
Symbol Explanation
ØInstructions, action
a), b),... Instructions in several steps
Results
Reference

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Safety
Symbol Explanation
Warning signs Obey all safety instructions with this symbol in order to avoid injury or
death.
Warns of potential risk of injury
Warns of electrical voltage
Warns of suspended loads
Warns of hot surface
Mandatory signs Obey all instructions with this symbol in order to avoid injury or death.
Observe the Operating Instructions
Wear eye protection
Wear protective gloves
Wear safety shoes
Wear ear protection
Disconnect the plant and secure it against unexpected restart
Information, note
Protection of environment

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Safety
2.4 Intended use
The machine is suitable for conveying the following media:
• Air:
The extracted air may contain water vapour, but no water or other liquids. For water vapour compati-
bility, see Info I 200
• all non-explosive, non-combustible, non-aggressive and non-poisonous damp gases and gas-air
mixtures
The machine must only be operated in such areas as are described in the operating instructions:
ØOnly operate the machine in technically perfect condition
ØThe machine must only be operated at an ambient temperature and inlet temperature of between 5 and
40 °C
Please contact us for temperatures outside this range.
ØThe permissible back pressure may not be exceeded
Maximum permissible back pressure: +100mbar
Any use extending beyond this use is seen as not in accordance with the intended use.
The intended use also includes the compliance with the operating data and operating agents specified in the
operating instructions, the listed maintenance works, as well as the details in the documentation issued by
the manufacturers of components and attachments.
If used under critical conditions and/or in case of any doubts, please contact the manufacturer. Non-obser-
vance can cause machine failures.
2.5 Inadmissible operating modes
• Extracting, conveying and compressing explosive, inflammable, aggressive or poisonous media, e.g. dust
as per ATEX zone 20-22, solvents as well as gaseous oxygen and other oxidising agents
• Erection and operation in potentially explosive environment (explosive gas/vapour/mist-air mixtures or
dust-air mixtures or hybrid mixtures of air and flammable substances)
• Using the machine in non-commercial plants unless the necessary precautions and protective measures
are taken in the plant
• Continuous operation outside the intake pressure ranges (see also chapter4.4)
• Operation of the machine when it is only partially assembled
• Using the machine in areas with ionising radiation
• Back pressures on the outlet side of more than +100 mbar
• Modifications to machine and accessories
• Operation by not or not sufficiently qualified personnel
2.6 Personnel qualification and training
All works are only allowed to be done by qualified and trained specialist personnel of legal age. Unauthori-
sed persons are not allowed to stay within the area of the vacuum pump and must be kept away from the
danger zone by suitable measures.
ØEnsure that people entrusted with working on the machine have read and understood these operating
instructions before starting work, particularly the safety instructions for installation, commissioning, main-
tenance and inspection work
ØResponsibilities, competences and monitoring of personnel must be regulated by the operating company.

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Safety
ØThe following works are only allowed to be done by technical specialist personnel, who have been trained
and instructed for the works assigned:
• Transport only by forwarding agents
• Erection, commissioning, maintenance and inspection works, as well as troubleshooting by specialist
personnel (e.g. locksmith, mechanics)
• Works on the electrical system are only allowed to be done by electricians
ØPersonnel to be trained and laypersons may only carry out work on the machine when under the su-
pervision of authorised specialist personnel and must be instructed about possible hazards in a safety
instruction.
Specialist personnel:
Persons that can evaluate work assigned to them and evaluate possible risks as a result of their training,
knowledge and experience as well as the applicable regulations.
Qualified electrician:
Specialist personnel that has obtained an electrotechnical specialist education and is familiar with work for
setting up, operation and maintenance of electrical systems and operating material.
Unauthorised persons:
Unauthorised persons are persons who cannot appropriately prove that they are qualified, trained, or inst-
ructed for the works on the vacuum pump. In addition, those persons shall be seen as unauthorised who,
due to their physical, cognitive, and health abilities, are not able to recognise hazards caused by the vacuum
pump.
2.7 Personal protective equipment
The user must make sure that the required protective clothing and protective equipment is available on the
plant and used by the personnel. The national legal provisions and the national regulations for industrial saf-
ety must be observed.
Recommended protective equipment:
Wear eye protection
Wear protective gloves
Wear safety shoes
Wear ear protection
2.8 Safety-conscious working
The following safety regulations apply in addition to the safety instructions and intended use listed in these
instructions:
• Accident prevention regulations, safety and operating regulations
• Standards and laws in force
ØHot parts of the machine must not be accessible during operation or must be fitted with a guard
ØNo persons may be endangered by the free suction or discharge of the pumped media
ØRisks arising from electrical energy must be eliminated
ØThe machine must not come into contact with flammable materials.
Risk of fire due to hot surfaces, output of hot pumped media or cooling air

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Safety
2.9 Responsibilities of the user
During the whole operating period of the machine, the operating company is obliged to prove that the limits
have been met and the required maintenance and inspection works have been performed.
The user must ensure that:
• All works for installation, commissioning and maintenance are carried out by authorised and qualified
specialist personnel, who gained enough information by an in-depth study of the operating instructions
• All works on electrical equipment are done by an electrician in compliance with the regulations for electri-
cal installations
• The Operating Instructions are always available in the site of operation of the vacuum pump for the whole
life phase
• All safety instructions and signs on the vacuum pump are always complete and legible
• The operating and maintenance personnel take note of all safety instructions - especially of information
provided in these Operating Instructions - and observe them
• The personal protective equipment is available and is used by the personnel
• All safety-relevant regulations are met
• Unauthorised persons cannot enter the operating site
• Fire warning and firefighting possibilities have been installed and are active
• These Operating Instructions shall be amended by working instructions, as well as the duties to supervi-
se and report. With this they shall consider the operational distinctions. Among others, it refers to instruc-
tions referring to:
• Organization of work
• Work procedures
• Specialist personnel assigned
In the event of accidents caused by the vacuum pump notify the Gardner Denver Schopfheim GmbH. Please
find contact data on the back page.
2.10 Hazardous substances
2.10.1 Conveying media
Machinery that may have contact to hazardous substances can cause serious burns, cauterisation or poiso-
ning during disassembly, maintenance and repair work.
ØBefore using our services each time, for occupational safety and environmental protection reasons, it is
necessary to indicate and declare hazardous substances on or in the device.
ØSend the declaration of clearance filled in and signed back to Gardner Denver.
If no declaration takes place, we must assume that the device is free from such substances. In case of
doubt, our service department reserves the right to reject the acceptance until the safety has been deter-
mined without doubt.
2.10.2 Auxiliary materials and lubricant
Incorrect auxiliary materials and lubricants may decompose at high temperatures. The resulting vapours may
be harmful to health and cause fires.
ØUse exclusively the recommended auxiliary materials and lubricants
ØObserve the oil recommendation sign on the pump
ØObserve the safety data sheets of the substances used
ØEnsure proper use
ØObserve the maintenance intervals

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Safety
2.11 Safety equipment, monitored functions
Missing or non-functional safety equipment may lead to dangerous operating states and thus result in li-
fe-threatening injuries.
ØDo not modify or bypass safety equipment and safety functions
ØCheck the function at regular intervals
2.12 Emergency Stop / Emergency Off
Missing safety equipment may lead to hazardous operating states. This can result in severe to mortal injury.
ØThe machine does not have its own Emergency Stop or Emergency Off. This must be implemented by
the user by, e.g. the integration of the machine in the user's safety plan.
2.13 Protection of environment
Environmental damage may be caused by the incorrect disposal of operating material and materials. For
questions about environmental protection as well as national regulations, please consult your local disposal
company.
ØAll operating materials as well as all gases, vapours or liquids, e.g. lubricating oil escaping during operati-
on and maintenance must be collected and disposed of in an environmentally friendly manner.

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Transport and storage
Fig. 1 Load handling equipment for lifting and transporting
1 Eyebolt
1
3 Transport and storage
3.1 Transport
WARNING Death by falling down or tipping over of the transported goods!
Falling or tipping over of transported goods can cause serious or fatal injuries.
Limbs can be crushed.
ØSelect the lifting device according to the total weight to be transported.
ØSecure the machine against tipping over and falling.
ØAlways attach the machine on all present load handling equipment. Attaching
at only one point is forbidden.
ØDo not stand underneath a suspended load.
ØPut the goods to be conveyed on a horizontal base
(max. inclination: 10 ° in all directions).
3.1.1 Unpack and check the as-delivered condition
a) Unpack the machine on receipt and check for transport damage.
b) Immediately notify the manufacturer of transport damages.
c) Check the scope of deliveries for completeness.
d) Dispose of the packaging in accordance with the local regulations in force.
3.1.2 Lifting and transporting
WARNING Bodily injury resulting from improper operation!
Improper operation of the lifting gear and the transported goods can cause seri-
ous or fatal injuries.
ØLift and transport the machine only on the permissible load handling
equipment.
ØLoads crosswise to the load handling equipment are not permitted.
ØAvoid impact stress.
ØWear your personal protective equipment.

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Transport and storage
The pump is supplied on a pallet.
a) Unload the pump using a forklift or pallet truck and transport to the installation location.
b) Tighten the eyebolt (Fig. 1/1) firmly.
c) For lifting the machine, it must be suspended on the eyebolt using the lifting device.
d) Lift the pump from the pallet and align.
3.2 Storage
NOTICE Material damage caused by improper storage!
Improper storage can damage the machine.
ØObserve the storage conditions described below.
3.2.1 Ambient conditions during storage
• Dust-free
• In a dry place
• Vibration free
• Protected against sun radiation
• Storage temperature: -10 °C to +60 °C
• Rel. air humidity: max. 80 %
• Close the openings air-tight
The machine must be stored in a dry environment with normal air humidity. It should not be sto-
red for more than 6 months.
For long-term storage (more than 3 months), it is useful to use a preservation oil rather than ope-
rating oil.
See Info "Storage instructions", page4.

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Product overview and functioning
K
E
F
A
B
O
I
P
E
U
E
P1
D
F
F
F
M N
TH
Q
4 Product overview and functioning
4.1 Product Overview
Fig. 2 Vacuum pump V-VCA 25 (VCE 25 is identically structured)
AVacuum connection
BExhaust air outlet
DFilter housing
ECooling air inlet
FCooling air outlet
HOil filling point
IOil sight glass
KOil discharge point
MOil recommendation plate
NData plate
ODirection of rotation arrow
PDrive motor
P1Motor data plate
QHot surfaces > 70 °C
TOil separator housing
UGas ballast valve

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 
25
1010
2530

0,75I 1,1 


1


21
Product overview and functioning
1 Model / size (mechanical version)
2 Serial number
3 Year of construction
4 Data matrix barcode
5 Article No.
6 Speed 50Hz / 60Hz
7 Motor output 50Hz / 60Hz
8 Operating mode
9 Pumping capacity 50 Hz / 60 Hz
10 Final pressure (abs.) 50 Hz / 60 Hz
7
4 5
10
2
689
1 3
4.2 Data plate
Fig. 3 Data plate (example)
The following information is encoded as barcode:
• Material number (MA)
• Production order (PR)
• Serial Number (SC)
4.3 Description
The V-VCA and V-VCE are single-stage oil flooded rotary vane vacuum pumps. The rotary vane divides the
pump housing into several chambers whose volumes change periodically. The oil ensures for the sealing of
the gap, an optimum lubrication and the dissipation of the compression heat.
The pumps have an integrated mesh filter on the suction side and on the outlet side an oil and oil mist sepa-
rator to return the oil to the oil circulation system. A fan between the pump housing and the motor provides
intensive air cooling. The fan is located in a fan housing that protects against contact. An integrated non-re-
turn valve prevents the evacuated system from being ventilated after the pump has been shut down, and
it prevents the delivery chamber from becoming saturated with oil after shutdown, which would lead to oil
hammering when the pump is restarted.
A standard gas ballast valve prevents condensation of small amounts of water vapour inside the pump when
small amounts of vapour are sucked in when the pump is at operating temperature. For higher amounts of
water vapour, a reinforced gas ballast can be provided (see Info I 200).
It is driven via a coupling by a flanged, three-phase standard motor.
The two types are identical in construction and differ only in the size of the achievable vacuum (see chap-
ter4.4 “Fields of application”).

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Product overview and functioning
4.4 Fields of application
The oil-flooded rotary vane vacuum pumps V-VCA and V-VCE are suitable for creating vacuums. With free
intake the nominal pumping capacity is 25m3/h at 50 Hz. Data sheet D150-3 shows the dependency of the
pumping capacity on the intake pressure.
These types are suitable for the evacuation of closed systems or for a continuous vacuum within the follow-
ing intake pressure ranges:
V-VCA V-VCE
50Hz 0.5 to 130 mbar (abs.) 10 to 500 mbar (abs.)
60Hz 0.5 to 100 mbar (abs.) 10 to 400 mbar (abs.)
If the machine is operated continuously outside these ranges there is the risk of oil leaking through the out-
let opening. When evacuating closed systems the volume to be evacuated must be no more than 2 % of the
nominal pumping capacity of the vacuum pump.
If the unit is switched on more frequently (at regular intervals of approx. 10 times per hour) or at
higher ambient temperatures and inlet temperatures, excess temperature limit of the motor win-
ding and the bearings may be exceeded.
Contact the manufacturer regarding such operating conditions.
Observe the ambient and intake temperature (see chapter2.4).
Observe the protection class of the motor (motor data sign).
If it is installed in the open air the unit must be protected from environmental influences, (e.g. by
a protective roof).

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Installation
5 Installation
We urgently recommend having the installation carried out by qualified specialist personnel. Gardner Denver
does not accept liability for damages caused by improper carrying out of installation.
5.1 Preparation of installation
Ensure the following conditions:
• Machine freely accessible from all sides
• Do not close ventilation grids and holes
• Sufficient space for installing and removing pipes and for maintenance work, particularly for the instal-
lation and deinstallation of the machine
• No influence by external vibrations
• Hot exhaust air from other machines may not be sucked in the cooling system
• Good ventilation in the installation room
• Filter housing (Fig. 2/D), oil filling point (Fig. 2/H), oil sight glass (Fig. 2/I), oil drain (Fig. 2/K), gas ballast
(Fig. 2/U) and oil separator housing (Fig. 2/T) must be easily accessible.
• For maintenance works, provide for a space of at least 40cm around the machine.
5.2 Installation
CAUTION Burns due to hot exhaust gases!
Place the freely blowing machines in a way that hazards due to hot exhaust ga-
ses are prevented.
NOTICE Property damage caused by improper installation!
Improper erection and installation can damage the machine.
ØThe machine may only be operated when it is set up horizontally
(Max. inclination: 1 ° in all directions).
ØSecure the machine against tipping over and falling.
ØThe floor must be plane and even.
ØThe bearing surface must be designed to be able to carry the weight of the
machine (see chapter10 “Technical Data”).
ØThe bearing surface must be at least the same size as the machine.
ØThe non-return valve must not be removed.
NOTICE Property damage from overheating!
Due to too low cooling capacity, the machine can overheat and can be damaged.
ØEnsure for a good aeration and venting of the installation room.
Observe the ambient temperature: min. +5 °C, max. +40 °C
ØThe cooling air inlets and the cooling air outlets must be at least 20 cm away
from the adjacent walls. Cooling air coming out must not be sucked in again.
a) Align the pump at the installation location and if necessary, bolt to the substrate.
b) If available, check optional accessories for the correct mounting and correct electrical connection.
An output reduction is noticeable when installed at more than 1000 m above sea level. In this case,
please contact us.
It is possible to install the machine on a firm base without anchoring. When installing on a subst-
ructure we recommend fixing it with flexible buffers.

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Fig. 4 Oil level
Installation
5.3 Connection of pipes
WARNING Parts being ejected from over pressure!
Closing or narrowing of the exhaust air openings may lead to impermissible pres-
sure in the machine. This could result in severe or mortal injury, components may
be damaged.
ØThe exhaust air opening must not be closed or restricted.
ØNo filter may be installed on the exhaust air side.
ØCounter pressures on the exhaust air side are only permissible up to +100mbar.
ØPrevent liquids from accumulating in the exhaust line.
ØBefore connecting hose or pipelines, the blind plugs at the exhaust air outlet
must be removed.
ØUse only suitable pipelines.
NOTICE Property damage due to high forces or torques!
If forces and torques during installation and operation are too high, the machine
can be damaged.
ØOnly screw in pipes by hand.
ØIf necessary, use flexible connections.
The vacuum connection (Fig. 2/A) is located on the filter housing (Fig. 2/D).
a) Remove the blind plugs on the suction connection (Fig. 2/A) and exhaust air outlet (Fig. 2/B).
b) Connect the pipes with the vacuum connection (Fig. 2/A).
c) The exhausted air can be blown out through the exhaust air outlet (Fig. 2/B) or conducted away using a
hose or pipeline.
d) Check that the maximum back pressure is not exceeded!
The pumping capacity of the vacuum pump is reduced if the inlet pipe is too narrow and/or too
long.
5.4 Check lubricating oil
a) Check the lubricating oil level through the oil
sight glass (Fig. 2/I) and top up, if necessary.
See chapter 7.6 “Lubricating Oil”, page26

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Installation
5.5 Connection of motor
DANGER Danger to life if the electrical installation has not been carried out professi-
onally!
Installation that has not been carried out professionally or properly can cause
serious injuries or death. The whole electrical system can be destructed.
ØThe electrical installation must only be carried out by a qualified electrician
observing EN 60204.
ØThe main switch must be installed by the operating company.
ØThe motor must be safeguarded via a motor protection switch. This must be
installed by the operating company.
NOTICE Property damage due to wrong energy supply!
Wrong operating voltages, frequencies or currents can cause loss of power or
damages to the machine.
ØThe conditions at the installation location must comply with the details on the
motor data plate.
Please find the electrical data of the motor on the data plate (Fig. 2/N) or the motor data plate. The motors
comply with DINEN60034 and are designed in protection class IP 55 and insulation class F. The approp-
riate connection diagram is located in the terminal box of the motor (not existing for the version with plug
connection).
Unless otherwise stated on the motor data plate, the following tolerances apply:
• ± 5% voltage deviation referred to nominal value
• ± 2% frequency deviation
a) Compare the motor data with the data of the existing mains network (current type, voltage, network
frequency, permitted current value).
b) The direction of rotation of the motor must correspond with the direction of rotation arrow (Fig. 2/O) on
the motor flange. Check the rotation direction!
c) Connect the motor directly in the terminal box or via the optional plug connection (accessories).
For securing, a motor protection switch and a strain relief provide for a screwed cable connection to
connect of the connecting cable.
We recommend using motor protection circuit breakers with delayed switch off, depending on a
possible excess current. Temporary excess current can occur when the machine is started under
cold conditions.

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Commissioning and decommissioning
6 Commissioning and decommissioning
WARNING Risk of injury due to improper operation!
Improper operation of the machine can cause serious or fatal injuries.
ØOnly use the machine in accordance with the intended use. See chapter2.4.
CAUTION Risk of injury due to hot surfaces!
When the machine is at operating temperature the surface temperatures on the
components may rise to above 70 °C. This can cause burns.
ØAvoid touching the hot surfaces. They are marked by warning signs.
ØWear suitable protective gloves, if necessary.
CAUTION Risk of injury due to noise emission!
High sound pressure level can permanently damage hearing.
ØObserve measured sound pressure level, see chapter10.
ØWhen spending a long time in the vicinity of the running machine use ear pro-
tection to avoid permanent damage to hearing.
CAUTION Oil aerosols in the extracted air!
In spite of the air oil removing system separating the oil mist to a large extent, the
extracted air contains a small residue of oil aerosols. Breathing in these aerosols
all the time could damage your health.
ØThe installation room must be well ventilated.
NOTICE Property damage due to insufficient cooling!
If the cooling air flow is reduced or interrupted, cooling of the machine cannot be
ensured. This can cause reduced performance or blackout failure of the machine
and damage the machine.
ØOperation is only allowed with sufficient cooling air quantity.
ØMake sure that the cooling air flow is not interrupted.
6.1 Start-up
6.1.1 Installation check
WARNING Risk of injury!
A faulty installation as well as missing or non-functional safety equipment may
lead to severe injury.
ØPut the vacuum pump into operation only after it has been ensured that the
installation is carried out flawless and the requirements for installation, as-
sembly and electrical installation have been observed.
The following checks must be carried out:
• no transport or assembly damage of the vacuum pump and assembly steps attached
• the vacuum pump is standing safely on the substrate at a horizontal installation position
• correct connection of the pipelines (inlet side, outlet side), check for leak tightness!
• tight fit of the screw and flange connections
• electrical installation complies with the specifications (connection diagram)
• the installation room is equipped with an adequate ventilation system