Elmo Rietschle V Series User manual

V
V Serie
V Series
Drehschieber
Rotary Vane
Edition: 1.0 ·1.7.2020 ·BA 236-EN
Operating Instructions
V-VCS 200 | 300 and V-VCX 200 | 300
Vacuum pump
Translation of the original Operating Instructions
Keep in a safe place for future reference!

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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 Abbreviations ................................................................ 4
1.5 Directives, standards, laws ..................................................... 4
1.6 Symbols and meaning ......................................................... 5
1.7 Specialist terms and meaning ................................................... 6
1.8 Copyright ................................................................... 6
1.9 Terms of guarantee ........................................................... 6
2 Safety ..................................................................... 7
2.1 Labelling of warnings .......................................................... 7
2.2 General..................................................................... 7
2.3 Intended use ................................................................ 7
2.4 Inadmissible operating modes................................................... 8
2.5 Personnel qualification and training............................................... 8
2.6 Safety-conscious working ...................................................... 8
2.7 Safety instructions for the user .................................................. 8
2.8 Safety instructions for installation, commissioning and maintenance..................... 9
2.9 Hazardous substances ........................................................ 9
2.9.1 Conveying media ..................................................... 9
2.9.2 Auxiliary materials and lubricant.......................................... 9
2.10 Safety equipment, monitored functions............................................ 9
2.11 Emergency Stop / Emergency Off ................................................ 9
2.12 Environmental protection ....................................................... 10
3 Transport and storage ........................................................ 11
3.1 Transport ................................................................... 11
3.1.1 Unpacking and checking the as-delivered condition .......................... 11
3.1.2 Lifting and transporting................................................. 11
3.2 Storage..................................................................... 12
3.2.1 Ambient conditions during storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Product overview and functioning .............................................. 13
4.1 Product Overview............................................................. 13
4.2 Data plate................................................................... 14
4.3 Description.................................................................. 14
4.4 Fields of application........................................................... 15
5 Installation ................................................................. 16
5.1 Preparation of installation ...................................................... 16
5.2 Installation .................................................................. 16
5.3 Connection of pipes........................................................... 17
5.4 Check lubricating oil .......................................................... 17
5.5 Connection of motor .......................................................... 18

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Table of contents
6 Commissioning and decommissioning .......................................... 19
6.1 Start-up .................................................................... 19
6.1.1 Installation check ..................................................... 20
6.1.2 Check the rotation direction ............................................. 20
6.2 Decommissioning/ storing ...................................................... 21
6.2.1 Decommissioning of the machine ........................................ 21
6.2.2 Storing the machine ................................................... 21
6.3 Recommissioning............................................................. 21
7 Maintenance and repair....................................................... 22
7.1 Ensure operational safety....................................................... 22
7.2 Maintenance tasks ............................................................ 23
7.2.1 Air filtering........................................................... 24
7.2.2 Coupling ............................................................ 26
7.2.3 Change the oil........................................................ 27
7.2.4 Oil removal .......................................................... 28
7.2.5 Oil cooler............................................................ 29
7.3 Repair / service .............................................................. 30
7.4 Spare parts.................................................................. 31
8 Malfunctions: Causes and elimination........................................... 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-VCS 200 | 300 and
V-VCX 200 | 300.
• describes how to use them safely and properly in all life phases.
• Must be available where the equipment is used.
1.2 Target group
The target group for these instructions is technically trained personnel.
1.3 Supplier documentation and accompanying documents
Document Contents No.
Supplier documentation
Operating Instructions BA 236
Declaration of Conformity C 0086
Declaration of no-objection 7.7025.003.17
Spare parts list Spare parts documents E 236
Data sheet Technical data and characteristic curves D 236
Info sheet Water vapour compatibility for oil-flooded vacu-
um pumps I 200
Info sheet Storage guideline for machines I 150
Info sheet Storage guideline for lubricants I 100
Manufacturer’s declaration EU Directive 2011/65/EU (RoHS II) —
1.4 Abbreviations
Fig. Figure
V-VCS Vacuum pump, standard version
V-VCX Vacuum pump with increased water vapour compatibility
m3/h Pumping capacity
mbar (abs.) Final vacuum, operating vacuum
1.5 Directives, standards, laws
See Declaration of Conformity

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Foreword
1.6 Symbols and meaning
Symbol Explanation
ØInstructions, action
a), b),... Instructions in several steps
Results
Reference
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
Warns of automatic or unexpected start-up of the machine
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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Foreword
1.7 Specialist terms and meaning
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
Suction capacity Vacuum pump volume flow related to the condition in the inlet connection
Final pressure (abs.) The maximum vacuum that a pump reaches when the inlet opening is
closed, indicated as absolute pressure
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.
1.8 Copyright
Passing on or copying this document, using and providing information on its contents is prohibited unless
expressly permitted. Contraventions will lead to claims for damages.
1.9 Terms of guarantee
The manufacturer's guarantee will no longer apply in the following cases:
• Not intended use
• Not complying with these instructions
• Operation by insufficiently qualified staff
• 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

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Safety
2 Safety
The manufacturer is not responsible for damage due to non-observance of the whole documentation.
2.1 Labelling of warnings
Warning Danger level Consequences of non-observance
DANGER Imminent danger Death, severe bodily injury
WARNING Possible imminent danger Death, severe bodily injury
CAUTION Possible hazardous situation Slight bodily injury
NOTICE Possible hazardous situation Material damage
2.2 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 operating company is responsible for observing local regulations.
2.3 Intended use
The machine is suitable for pumping, compressing or compressing of the following media:
• in the VCS version (CD):
all non-explosive, non-combustible, non-aggressive and non-poisonous dry gases and gas-air
mixtures
• in the VCX version (XD):
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:
• Only operate the machine in technically perfect condition
• The machine must only be operated at an ambient temperature and inlet temperature of between 12 and
40 °C
Please contact us for temperatures outside this range.
• The permissible back pressure may not be exceeded (see chapter5.3)
If used under critical conditions and/or in case of any doubts, please contact the manufacturer. Non-obser-
vance can cause machine failures.

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Safety
2.4 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
• Setting up and operation in potentially explosive environments (explosive gas / vaour / 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):
V-VCS: 0.5 - 500 mbar (abs.)
V-VCX: 3.0 - 500 mbar (abs.)
• 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
2.5 Personnel qualification and training
• Ensure 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
• Responsibilities, competences and monitoring of personnel must be regulated by the operating company.
• All work must only be carried out by technical specialists:
• Setting up, commissioning, maintenance, troubleshooting and inspection: qualified personnel and
specialist personnel authorised by the operating company
• Works on the electrical system or electrotechnical system: qualified electrician
• Personnel to be trained and laypersons may only carry out work on the machine when under the supervi-
sion of authorised specialist personnel and must be instructed about possible hazards in a safety instruc-
tion.
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.
2.6 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
2.7 Safety instructions for the user
• Hot parts of the machine must not be accessible during operation or must be fitted with a guard
• Persons must not be endangered by the free extraction or discharge of pumped media
• Risks arising from electrical energy must be eliminated
• The 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
2.8 Safety instructions for installation, commissioning and maintenance
• The user ensures that any installation, commissioning and maintenance work is carried out by authorised,
qualified specialists who have gained sufficient information by an in-depth study of the operating instruc-
tions
• Only work on the machine when it stands still and is secured against accidental switching on
• Strictly observe the procedure for decommissioning the machine described in the operating instructions
• Fit or start up safety and protective devices again immediately after finishing work. Before recommission-
ing, follow the instructions listed for commissioning.
• Alteration works or modifications to the machine are only permissible with the manufacturer's consent
• Only use original parts or parts approved by the manufacturer. The use of other parts can void liability for
any consequences arising.
• Keep unauthorised people away from the machine
2.9 Hazardous substances
2.9.1 Conveying media
Compressors that may make contact to hazardous substances can cause serious burns, cauterisation or
poisoning during disassembly, maintenance and repair work.
• Before 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.
• Send 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.
2.9.2 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.
• Use exclusively the recommended auxiliary materials and lubricants
• Observe the oil recommendation sign on the pump
• Observe the safety data sheets of the substances used
• Ensure proper use
• Observe the maintenance intervals
2.10 Safety equipment, monitored functions
Missing or non-functional safety equipment may lead to dangerous operating states and thus result in
life-threatening injuries.
• Do not modify or bypass safety equipment and safety functions.
• Check the function at regular intervals
2.11 Emergency Stop / Emergency Off
DANGER Mortal danger from missing safety equipment!
Missing safety equipment may lead to hazardous operating states. This can result in
severe to mortal injury.
ØThe vacuum pump does not have its own Emergency Stop or Emergency Off. This
must be implemented by the operating company by, e.g. the integration of a com-
pressor in the protection concept of the operating company.

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Safety
2.12 Environmental protection
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.
• All operating materials as well as all gases, vapours or liquids, e.g. lubricating oil escaping during opera-
tion and maintenance must be collected and disposed of in an environmentally friendly manner.

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Transport, storage and disposal
Fig. 1 Load handling equipment for lifting and transporting
1
1 Eyebolt
2
2 Lifting lug
3 Transport and storage
3.1 Transport
3.1.1 Unpacking and checking the as-delivered condition
a) Unpack the machine on receipt and check for transport damage.
b) Immediately notify the manufacturer of transport damage. .
c) Dispose of the packaging in accordance with the local regulations in force.
3.1.2 Lifting and transporting
WARNING Death by falling down or tipping over of the transported goods!
Falling down 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).
WARNING Bodily injury resulting from improper operation!
Improper operation of the lifting gear and the transported goods can cause serious 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.
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 and the lifting lug(Fig. 1/2) using the lifting
device.
d) Lift the pump from the pallet and align.

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Transport, storage and disposal
3.2 Storage
NOTICE Material damage caused by improper storage!
Improper storage can damage the machine.
The storage area must meet the following conditions:
ØDust-free
ØVibration free
3.2.1 Ambient conditions during storage
Ambient conditions Value
Relative humidity 0 % to 80 %
Storage temperature -10 °C to +60 °C
The machine must be stored in a dry environment with normal air humidity. It should not be
stored for more than 6 months.
For long-term storage (more than 3 months), it is useful to use a preservation oil rather than oper-
ating oil.
See Info "Storage instructions", page 4.

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Setup and operation
T
M
K
L
N
F
E
F
A
U
B
O
F
P D
IH
Q
4 Product overview and functioning
4.1 Product Overview
Fig. 2 Vacuum pump V-VCS 200 / 300
AVacuum connection
BExhaust air outlet
DInlet flange with non-return valve
ECooling air inlet
FCooling air outlet
HOil filling point
IOil sight glass
KOil discharge point
LAir oil removal device
MOil recommendation plate
NData plate
ODirection of rotation arrow
PDrive motor
QHot surfaces > 70 °C
TOil remover housing
UGas ballast valve

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Setup and operation
1 Type / size (mechanical version)
2 Serial number
3 Year of construction
4 Data matrix barcode
5 Item 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
 

01








20
7
4 5
10
2
689
1 3
4.2 Data plate
The following information is encoded as barcode:
• Material number (MA)
• Production order (PR)
• Serial Number (SC)
4.3 Description
The V-VC S /X 200 |300 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 sep-
arator to return the oil to the oil circulation system. With optimum air routing, a fan and an oil cooler ensure
for the cooling of the oil and pump housing. An integrated non-return valve prevents the evacuated system
from being ventilated after the pump has stopped. With standstill times longer than two minutes, we recom-
mend venting the connecting lines to atmospheric pressure in order to avoid possible damage.
When the pump is at operating temperature, a standard gas ballast valve (Fig. 2/U) prevents the condensa-
tion of low quantities of water vapour inside the pump. The water vapour compatibility may vary depending
on the pump version (see Info I 200).
It is driven via a coupling by a flanged, three-phase standard motor.
Variant V-VCX: The functional parts are more resistant against water steam and solvents. In addition,
glass-fibre reinforced slide gates (GF) are used that are made of epoxy resin. The gas ballast
quantity was increased.
Generally, the oil sump temperature was clearly increased compared with the standard
design.
Fig. 3 Data plate

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Setup and operation
4.4 Fields of application
The oil-flooded rotary vane vacuum pumps V-VCS and V-VCX are suitable for creating vacuums. The nom-
inal suction power with unrestricted suction is 200 and 300 m3/h at 50Hz. Data sheet D236 shows the de-
pendency 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-VCS: 0.5 to 500 mbar (abs.)
• V-VCX: 3.0 to 500 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.
For continuous operation > 100 mbar (abs.), the next higher motor output should be used.
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 wind-
ing and the bearings may be exceeded.
Contact the manufacturer regarding such operating conditions.
Observe the ambient and intake temperature (see chapter 2.3).
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
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 external vibration effects
• Do not suck any hot exhaust air from other machines into the cooling system
• Good ventilation in the installation room
• Suction flange (Fig. 2/D), Oil filling point (Fig. 2/H), Oil sight glass (Fig. 2/I), Oil drain (Fig. 2/K), Gas bal-
last (Fig. 2/U) and de-oiler housing (Fig. 2/T) must be easily accessible.
NOTICE Property damage from overheating!
The compressor may overheat and be damaged due to an insufficient cooling capac-
ity.
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 30 cm away from
the adjacent walls. Cooling air coming out must not be sucked in again.
ØFor maintenance work, provide a clearance of at least 50 cm around the
compressor.
5.2 Installation
CAUTION Burns due to hot exhaust gases!
Place the freely blowing machine in a way that hazards due to hot exhaust gases 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: 10 ° 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 ma-
chine (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.
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 sub-
structure we recommend fixing it with flexible buffers.

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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 Material damage resulting from too high forces and torques of the pipes acting
on the unit!
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 suction flange (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 suction capacity of the vacuum pump is reduced if the inlet pipe is too narrow and/or too
long.
5.4 Check lubricating oil
The pumps are delivered with first oil filling. With this, it can happen that the oil has a dark colour
due to graphite leaching. This does not have any influence on the performance of the pump.
a) Check the lubricating oil level through the oil sight glass (Fig. 2/I) and top up, if necessary.
b) Fill the lubricating oil (for suitable types see chapter 7.2.3 “Change the oil”) via the oil filling point
(Fig. 2/H) up to the upper edge of the sight glass (Fig. 2/I).
c) Close the oil filling point.
Fig. 3 Oil level

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Installation
5.5 Connection of motor
DANGER Danger to life if the electrical installation has not been carried out professionally!
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 ob-
serving 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 in-
stalled by the operating company.
NOTICE Property damage due to wrong energy supply!
Wrong operating voltages, frequencies or currents can cause loss of power or dam-
ages to the machine.
ØThe conditions at the installation location must comply with the details on the
motor data plate.
ØPermissible tolerances:
• ± 5 % voltage deviation
• ± 2 % frequency deviation
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 appro-
priate connection diagram is located in the terminal box of the motor (not existing for the version with plug
connection).
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 via the motor protection switch.
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
6.1 Start-up
WARNING Risk of injury due to improper operation!
Improper operation of the machine can cause serious or fatal injuries.
ØStrictly observe the safety instructions. Especially observe the safety instructions
in chapter2.
WARNING Risk of injury due to hot surfaces!
When the machine is at operating temperature the surface temperatures on the com-
ponents may rise to above 70 °C. This can cause burns.
ØDo not touch hot surfaces (indicated by warning signs).
ØWear suitable protective gloves, if necessary.
WARNING Risk of injury due to drawing in and trapping!
Due to the high pumping capacity it is possible that fingers are drawn in the inlet
connection and injured.
ØDo not put your hands onto the inlet connection to check the suction.
ØBy barriers or keeping sufficient distance make sure that parts of the body can be
drawn into the inlet connection.
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 protec-
tion 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.

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Commissioning and decommissioning
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 instal-
lation is carried out flawless and the requirements for installation, assembly 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 (intake side, pressure 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 sufficient ventilation
• oil filled and oil level checked
• vacuum pump and pipelines cleaned
• check the function of optional accessories (if present)
6.1.2 Check the rotation direction
CAUTION Risk of injury due to wrong direction of rotation!
Rotating backwards for a longer time can cause injuries due to drawing in and can
damage the machine.
ØUse a phase sequence indicator to check the direction of rotation (anti-clockwise).
ØKeep a distance of 1m to outlet and inlet connections.
The drive shaft direction of rotation is shown by the arrow for the direction of rotation (Fig. 2/O) on the motor
flange.
a) Start the motor briefly (max. two seconds) to check the direction of rotation. When looking at the motor
fan, it must rotate clockwise.
b) After correcting the direction of rotation if necessary, start the motor again and stop it again after 2 mi-
nutes in order to top missing oil up to the upper edge of the sight glass (Fig. 3/I). This topping up at the
filling point (Fig. 2/H) must be repeated until all the oil pipes have been filled completely. The filling point
must not be open when the pump is running.