Pfeiffer Vacuum OKTA 8000 G ATEX User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
OKTA 8000 G
Roots Pump

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new roots pump should support you
in your individual application with full performance and without malfunctions. The name
Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and complete
range of top-quality products and first-class service. From this extensive, practical experience
we have gained a large volume of information that can contribute to efficient deployment and
to your personal safety.
In the knowledge that our product must avoid consuming work output, we trust that our
product can offer you a solution that supports you in the effective and trouble-free
implementation of your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
2/58

Table of contents
1 About this manual 7
1.1 Validity 7
1.1.1 Applicable documents 7
1.1.2 Variants 7
1.2 Target group 7
1.3 Conventions 7
1.3.1 Instructions in the text 7
1.3.2 Pictographs 8
1.3.3 Stickers on product 8
1.3.4 Abbreviations 9
2 Safety 10
2.1 General safety information 10
2.2 Safety instructions 10
2.3 Safety precautions 13
2.4 Product usage limits 14
2.5 Proper use 14
2.6 Foreseeable improper use 14
3 Product description 16
3.1 Function 16
3.2 Identifying product 17
3.3 Product features 17
3.4 Shipment 17
4 Transportation and Storage 18
4.1 Transporting vacuum pump 18
4.2 Storing vacuum pump 19
5 Installation 20
5.1 Setting up vacuum pump 20
5.2 Filling with lubricant 20
5.3 Filling with sealing oil 21
5.4 Fill the sealing medium for the axial face seal 22
5.5 Connecting the vacuum side 23
5.6 Connecting the fore-vacuum side 24
5.7 Connecting the gas cooler 24
5.8 Connecting cooling water supply 25
5.9 Connect to mains power supply 27
5.9.1 Connecting three-phase motor with 6-pin terminal board 28
5.9.2 Checking the direction of rotation 29
5.9.3 Connecting the PTC thermistor tripping unit 29
5.10 Connecting accessories 30
5.10.1Connecting sealing gas 30
5.10.2Installing temperature monitoring 31
5.10.3Inserting splinter shield 32
6 Operation 33
6.1 Putting the vacuum pump into operation 33
6.2 Switching on the vacuum pump 33
6.3 Adjusting the sealing gas amount 34
6.4 Flushing the suction chamber 35
6.5 Switching off and venting 35
6.6 Restarting 36
7 Maintenance 37
7.1 Maintenance information 37
Table of contents
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7.2 Checklist for inspection and maintenance 37
7.3 Changing the lubricant 38
7.4 Changing sealing oil 40
7.5 Checking and changing the sealing medium of the axial face seal 41
7.6 Cleaning the suction chamber 41
7.7 Installing coupling 42
8 Decommissioning 43
8.1 Shutting down for longer periods 43
8.2 Recommissioning 43
9 Recycling and disposal 44
9.1 General disposal information 44
9.2 Dispose of Okta roots pumps 44
10 Malfunctions 45
11 Service solutions by Pfeiffer Vacuum 47
12 Spare parts 49
12.1 Set of seals for version with RSSR 49
12.2 Set of seals for version with axial face seal 49
12.3 Axial face seal, complete 49
12.4 Maintenance kit for version with RSSR 49
12.5 Overhaul kit for versions with RSSR 49
12.6 Overhaul kit for versions with axial face seal 49
12.7 Set of gear wheels 49
13 Accessories 50
13.1 Accessory information 50
13.2 Ordering accessories 50
14 Technical data and dimensions 52
14.1 General 52
14.2 Technical data 52
14.3 Dimensions 53
Declaration of conformity 55
UK Declaration of Conformity 56
Table of contents
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List of tables
Tbl. 1: Stickers on product 8
Tbl. 2: Abbreviations used 9
Tbl. 3: Permissible ambient conditions 14
Tbl. 4: Features of the roots pumps 17
Tbl. 5: Permissible sealing media 22
Tbl. 6: Requirements on the cooling water composition 26
Tbl. 7: Max. permissible flushing quantity 35
Tbl. 8: Maintenance intervals 38
Tbl. 9: Troubleshooting 46
Tbl. 10: Accessories for Okta 8000 G 50
Tbl. 11: Consumables 51
Tbl. 12: Conversion table: Pressure units 52
Tbl. 13: Conversion table: Units for gas throughput 52
Tbl. 14: Technical data for Okta 8000 G 53
List of tables
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List of figures
Fig. 1: Position of the stickers on the product 9
Fig. 2: Design, Okta 8000 G 16
Fig. 3: Functional diagram Okta G 17
Fig. 4: Transporting the vacuum pump 19
Fig. 5: Filling with lubricant 21
Fig. 6: Filling sealing oil for radial shaft seal rings 22
Fig. 7: Sealing agent container for axial face seal 23
Fig. 8: Roots pump with tubular gas cooler 25
Fig. 9: Cooling water connection at the gas cooler 26
Fig. 10: Delta connection for low voltage 28
Fig. 11: Star circuit for high voltage 28
Fig. 12: Check of direction of rotation 29
Fig. 13: Connection example with PTC thermistor tripping unit 30
Fig. 14: Sealing gas connection 31
Fig. 15: Temperature monitoring 32
Fig. 16: Changing the lubricant 39
Fig. 17: Replacing sealing oil for radial shaft seal rings 40
Fig. 18: Elastic bolt coupling 42
Fig. 19: Okta 8000 G 54
List of figures
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1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
These operating instructions are a customer document of Pfeiffer Vacuum. The operating instructions
describe the functions of the named product and provide the most important information for the safe use
of the device. The description is written in accordance with the valid directives. The information in these
operating instructions refers to the product's current development status. The document shall remain
valid provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
Designation Document
Declaration of conformity A component of these operating instructions
1.1.2 Variants
These instructions apply for roots pumps of the following versions:
Pump type Pump designs
Standard version Standard version:
● Standard motor
● Housing and all parts forming the suction chamber are made of GGG
● Connection flanges are designed as ISO, DIN or ANSI flanges
● Connections for sealing gas inlet
● Shaft sealed with radial shaft seal ring (RSSR)
● Version with magnetic coupling (M series only)
Special versions Changes to the standard design:
● Shaft sealed with an axial face seal
● Version with gas cooler
● Special seal materials which are resistant to aggressive media
● Special housing and piston materials (e.g. stainless steel)
● Pressure test carried out on the pump housing
1.2 Target group
These operating instructions are aimed at all persons performing the following activities on the product:
●Transportation
●Setup (Installation)
●Usage and operation
●Decommissioning
●Maintenance and cleaning
●Storage or disposal
The work described in this document is only permitted to be performed by persons with the appropriate
technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac-
uum.
1.3 Conventions
1.3.1 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
About this manual
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Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.2 Pictographs
Pictographs used in the document indicate useful information.
Note
Tip
1.3.3 Stickers on product
This section describes all the stickers on the product along with their meanings.
Mod.: Okta 8000 G
Weight: 1500 kg
3
D-35641 Asslar
Made in Germany
Mod.-No.: PP G80 xxx
n: max. 2200 1/min Oil: P3 21,0 l
S(N): max. 12000 m /h
09/2018
Ser. -No.: 12xxxxxxxxx
Rating plate (example)
The rating plate is located on the front side above the sight
glass
Warning hot surface
This sticker warns of injuries caused by high temperatures as a
result of contact without protection during operation.
Vor Inbetriebnahme Pumpe mit Öl
füllen
Fill the pump with oil before putting
into operation
Remplir la pompe d’huile avant la mise
en route
Sticker (red)
Before commissioning, fill the gear and bearing chambers with
lubricant
Achtung!
nur mit D2 befüllen
Attention!
only D2 to be used
Sticker (blue) – special lubricant only
Caution: fill with D2 only
Tbl. 1: Stickers on product
About this manual
8/58

12
34
5
Fig. 1: Position of the stickers on the product
1 Hot surface warning sign 4 Note on filling up lubricant
2 Rating plate 5 Direction of rotation arrow (cast in pump housing)
3 D2 lubricant notice
1.3.4 Abbreviations
Abbreviation Explanation
Okta "G" Gas circulation cooled roots pump
WAF Width Across Flats
EClearance between both coupling halves
RSSR Radial shaft seal ring
AFS Axial face seal
GGG Spheroidal graphite cast iron
FPM Fluoropolymer rubber
PE Protective earth (earthed conductor)
PN Nominal pressure stage (pressure nominal)
ANSI American National Standards Institute
ISO International Organization for Standardization
DIN German Institute for Standardization (Deutsches Institut für Normung)
fRotation speed value of a vacuum pump (frequency, in rpm or Hz)
BA Operating instructions
SI Service instructions
Tbl. 2: Abbreviations used
About this manual
9/58

2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
All safety instructions in this document are based on the results of the risk assessment carried out in
accordance with Machinery Directive 2006/42/EC Annex I and EN ISO 12100 Section 5. Where applica-
ble, all life cycle phases of the product were taken into account.
Risks during transport
WARNING
Risk of serious injury from swinging, toppling or falling objects
During transport, there is a risk of crushing and impact on swinging, toppling or falling objects. There
is a risk of injuries to limbs, up to and including bone fractures and head injuries.
►Secure the danger zone if necessary.
►Pay attention to the center of gravity of the load during transport.
►Ensure even movements and moderate speeds.
►Observe safe handling of the transport devices.
►Avoid sloping attachment aids.
►Never stack products.
►Wear protective equipment, e.g. safety shoes.
Safety
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Risks during installation
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
►Before the installation, check that the connection leads are voltage-free.
►Make sure that electrical installations are only carried out by qualified electricians.
►Provide adequate grounding for the device.
►After connection work, carry out an earthed conductor check.
WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
►Keep limbs out of the reach of the roots pump.
WARNING
Risk of scalding from suddenly escaping hot cooling water
The cooling water connections are open to both sides. When connecting the cooling water supply,
there is a risk of scalding from the sudden escape of overpressurized hot water.
►Prior to installation, ensure that pressure is discharged from the cooling water system, and that it
is cooled down.
►Wear protective equipment, e.g., safety goggles and gloves.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Route the exhaust line without shut-off units.
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Risk of injury from loss of stability
During setup, there is a risk of injury from tipping, if the vacuum pump is not anchored on the stand-
ing surface.
►Secure the vacuum pump using suitable lifting gear.
►Wear personal protective equipment.
CAUTION
Danger of injury from moving parts
After a power failure or a standstill as a result of overheating, the motor restarts automatically. There
is a risk of injury to fingers and hands if they enter the operating range of rotating parts.
►Safely disconnect motor from the mains.
►Secure the motor against reactivation.
►Dismantle the vacuum pump for inspection, away from the system if necessary.
Safety
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Risks during operation
WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
►Observe the pertinent regulations for handling toxic process media.
►Safely purge toxic process media via an exhaust line.
►Use appropriate filter equipment to separate toxic process media.
WARNING
Risk of injury from reactive, potentially explosive or other hazardous gas/air mixtures
Uncontrolled gas inlet of air or gases containing oxygen provides ideal conditions for the formation of
unexpected explosive gas/air mixtures in the vacuum system. This results in severe injuries.
►Use only inert gases for supplying the sealing gas supply in order to avoid a potential ignition.
WARNING
Risk of crushing on rotating parts when reaching into the open flange
The pistons continue to run in the vacuum after switching off the motor, and can trap fingers and
hands within their reach.
►Wait until the vacuum pump comes to a complete standstill.
►Secure the vacuum pump against re-start.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C.
►Provide suitable touch protection.
CAUTION
Health hazard from increased noise emission
Remaining in the close proximity of the vacuum pump for a sustained period of time may cause hear-
ing damage.
►Ensure adequate sound insulation.
►Wear hearing protection.
Risks during maintenance, decommissioning and malfunctions
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
Safety
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WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
►Keep limbs out of the reach of the roots pump.
WARNING
Health hazard and environmental damage from toxic contaminated lubricant
Toxic process media can cause lubricant contamination. When changing the lubricant, there is a
health hazard due to contact with poisonous substances. Illegal disposal of toxic substances causes
environmental damage.
►Wear suitable personal protective equipment when handling these media.
►Dispose of the lubricant according to locally applicable regulations.
WARNING
Danger of injury due to exposed rotating parts
In the operating range of the motor coupling, there is a danger of clothing being caught and wound
up.
►When assembling the motor and coupling, make sure that the coupling protection is seated cor-
rectly.
►Wear correct clothing.
CAUTION
Scalding from hot lubricant
Danger of scalding when draining lubricant if it comes into contact with the skin.
►Wear protective equipment.
►Use a suitable collection receptacle.
2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions
►Do not expose body parts to the vacuum.
►Check all safety measures at regular intervals.
►Observe the safety and accident prevention regulations, if necessary wear personal protective
equipment.
►Always ensure a secure connection to the earthed conductor (PE), protection class I.
►Never operate the vacuum pump with open vacuum flange.
►Provide suitable touch protection, if the surface temperature exceeds 70°C.
►Provide suitable noise protection measures as necessary.
Safety
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►Before working on the vacuum connection, wait until the rotor is at a complete standstill (rotation
speed f = 0 Hz).
►Never make your own conversions or modifications to the vacuum pump.
►Before returning the vacuum pump, observe the notes in the chapter Service.
2.4 Product usage limits
Parameter Okta G
Installation location ● Indoors, protected against:
─ dust deposits
─ falling objects
─ fire-fighting water
● Outdoors, protected against:
─ falling objects
─ direct influence of weather such as rain, splash water, strong
drafts and sunlight
─ fire-fighting water
─ lightning strike
Installation altitude max. 2,000 m above sea level,
at installation altitudes > 1,000m above m.s.l. and an ambient tempera-
ture of 40 °C the rated power of the motor reduces by around 10 %
Ambient temperature +5 °C to +40 °C
Relative air humidity max. 85 % (depending on the motor version)
Gas temperature, pressure
side, max. +140 °C
Intake pressure, max. < 1,100 hPa (abs.)
Orientation Horizontal
Tbl. 3: Permissible ambient conditions
2.5 Proper use
►Use the vacuum pump for vacuum generation only.
►When pumping media with an oxygen concentration level of > 21 %, only use perfluorinated, syn-
thetic oils (F5) as lubricant.
►Use sealing gas as appropriate for the process.
►Operate the vacuum pump within the application limits of the product and in compliance with the
technical data.
►Adhere to the installation, commissioning, operating, and maintenance instructions.
►Use only accessory parts recommended by Pfeiffer Vacuum.
2.6 Foreseeable improper use
Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the
purpose of the product, whether intentional or unintentional, is regarded as improper use; in particular:
●Transporting, installing, or operating the vacuum pump in an impermissible spatial position
●Pumping media which are corrosive to materials of the vacuum pump
●Pumping explosive media
●Pumping radioactive media
●Pumping media prone to exothermic reactions
●Pumping media that introduce an ignition source to the suction chamber
●Pumping media that form adhesive deposits inside the suction chamber and cause the pistons to
touch or jam
●Pumping fluids - flushing media for cleaning are permissible
●Using the vacuum pump to generate pressure
●Using the vacuum pump in systems in which sporadic loads and vibrations or periodic forces act
on the unit
●Using the vacuum pump in potentially explosive atmospheres
●Using the vacuum pump in areas with strong electrical, magnetic or electromagnetic fields
Safety
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●Use of the vacuum pump with open vacuum and/or fore-vacuum flange open to the atmosphere
●Using lubricants not specified by Pfeiffer Vacuum
●Lifting the vacuum pump without the prescribed eye bolts, for example on piping.
●Use of accessories or spare parts not listed in these instructions
●Using the vacuum pump as a climbing aid
Safety
15/58

3 Product description
3.1 Function
The gas circulation cooled roots pumps of the OktaLine "G" series work according to the Roots princi-
ple, and are operated without backing pump. 2 rolling pistons, which are coupled by a pair of gears,
counter-rotate and roll in the housing in opposite directions without making contact. When used as a
single pump, they can reach a pressure range of 130 to 1013 Pa. A series connection of two vacuum
pumps reduces the ultimate pressure to 20 to 30 hPa. When combined with other Roots pumps, the
final pressure can be lowered down to the medium vacuum range. The direction of flow of the vacuum
pumps is vertical from top to bottom, so that any accumulating fluids cannot become deposited in the
pump housing.
2 3
14
67891011
1213
5
Fig. 2: Design, Okta 8000 G
1 Lubricant filling plug 8 Sealing gas connection (2×)
2 Vacuum flange 9 Fore-vacuum flange
3 Eye bolts 10 Measurement connection, fore-vacuum flange
4 Lubricant filling plug 11 Cooling gas connection
5 Oiler for version with RSSR 12 Sealing gas connection (2×)
6 Sight glass 13 Lubricant drain plug
7 Lubricant drain plug
Product description
16/58

2
1
8
7
4
356
Fig. 3: Functional diagram Okta G
1 Cooling gas connection I 5 Suction chamber
2 Secondary rotor 6 Cooling gas connection II
3 Vacuum connection 7 Fore-vacuum connection (fore-vacuum flange)
4 Main rotor 8 Gas cooler
3.2 Identifying product
To ensure unambiguous identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate at hand.
The following information is shown on the rating plates:
●Pump model
●Model number
●Type and quantity of the lubricant
●Max. allowable pump rotation speed
●Date of manufacture
●Input voltage range (motor rating plate)
3.3 Product features
Flange types Vacuum connection/
Fore-vacuum con-
nection
Cooling gas con-
nection
Measurement
connections
Barrier gas
connections
ANSI (150 lbs) 12" 6" 1 × G 3/8"
1 × G 1/2"
4 × G 3/8"
DIN DN 300 PN 10 DN 150 PN 10
DIN ISO NW 320 ISO-F NW 160 ISO-F
Tbl. 4: Features of the roots pumps
3.4 Shipment
●Okta G without motor
●Connection flange
●Seal for the connection flange
●Protective cover for the connection flange
●Screw kit for the connection flange
●2 eye bolts
●Lubricant P3 (for standard pump)
●Operating instructions
Product description
17/58

4 Transportation and Storage
4.1 Transporting vacuum pump
WARNING
Risk of serious injury from swinging, toppling or falling objects
During transport, there is a risk of crushing and impact on swinging, toppling or falling objects. There
is a risk of injuries to limbs, up to and including bone fractures and head injuries.
►Secure the danger zone if necessary.
►Pay attention to the center of gravity of the load during transport.
►Ensure even movements and moderate speeds.
►Observe safe handling of the transport devices.
►Avoid sloping attachment aids.
►Never stack products.
►Wear protective equipment, e.g. safety shoes.
Instructions for safe transport
●Only remove the protective cover for the connection flange once the pipes have been
mounted.
●Fill the gear and bearing chambers with lubricant only once the final installation posi-
tion is reached.
Preparations for transport
Pfeiffer Vacuum recommends keeping the transport packaging and original protective cov-
er.
Safe transport of the product
1. Observe weight specified on the rating plate.
2. Where possible, always transport or ship the roots pump in its original packaging.
3. Remove the protective cap only immediately prior to installation.
Transporting the vacuum pump in its packaging
1. Use a pallet truck to transport the vacuum pump in its packaging.
2. Note the center of gravity of the load.
3. Observe safe handling of manually operated transport devices.
4. Ensure harmonious movements and moderate speeds.
5. Ensure a flat substrate.
6. Wear protective equipment, e.g. safety shoes.
Transportation and Storage
18/58

Fig. 4: Transporting the vacuum pump
Transporting vacuum pump without packaging
2 eye bolts are included in the shipment, which are firmly bolted to the vacuum pump ex-factory.
1. Unpack the vacuum pump.
2. Attach suitable lifting tools to both eye bolts.
3. Pay attention to the correct use and fastening of the lifting equipment.
4. If a motor is installed, use an additional strap at a suitable location.
5. Lift the vacuum pump out of the transport packaging vertically.
6. If necessary, remove the eye bolts after transport and installation.
–Keep the eye bolts for future use.
4.2 Storing vacuum pump
Neither the suction chamber nor the pistons in the roots pump in the roots pump interior are provided
with corrosion protection.
Storage
Pfeiffer Vacuum recommends storing the products in their original transport packaging.
Procedure
1. Vacuum-seal both connection flanges.
2. Store the roots pump only in dry, dust-free rooms, within the specified ambient conditions.
3. Evacuate and then fill the suction chamber with nitrogen to achieve the best corrosion protection
for the roots pump.
4. In rooms with humid or aggressive atmospheres, seal the roots pump airtight in a plastic bag, to-
gether with a drying agent.
5. Change the lubricant after a storage period of more than 2 years.
6. If you intend to store the roots pump for longer periods, we recommend that you use a special
corrosion protection agreed with Pfeiffer Vacuum.
Transportation and Storage
19/58

5 Installation
5.1 Setting up vacuum pump
CAUTION
Risk of injury from loss of stability
During setup, there is a risk of injury from tipping, if the vacuum pump is not anchored on the stand-
ing surface.
►Secure the vacuum pump using suitable lifting gear.
►Wear personal protective equipment.
General notes for the installation of vacuum components
►Choose an installation location that permits access to the product and to supply lines at all times.
►Observe the ambient conditions given for the limits of use.
►Provide the highest possible level of cleanliness during assembly.
►Ensure that flange components during installation are grease-free, dust-free and dry.
Procedure
1. Check the carrying capacity of the floor at the installation location.
2. Place the vacuum pump on a flat, horizontal and fixed surface, to safeguard the lubricant supply.
–Reference surface is the vacuum flange.
3. Evenly screw the 4 feet of the vacuum pump onto the base without distorting the pump housing.
4. Use adjustment elements from the Pfeiffer Vacuum range of accessories for roots pumps to
mount the feet horizontally.
5. When installing the pump in a closed housing, ensure adequate air circulation.
6. Keep both sight glasses freely accessible for checks and maintenance.
7. Keep the filling/drain holes freely accessible.
8. Ensure that the motor rating plate remains accessible at all times for a clear view of the voltage
and frequency specifications.
9. Maintain the minimum distances to bordering surfaces to guarantee sufficient air circulation.
10. Fill with lubricant prior to first commissioning.
5.2 Filling with lubricant
NOTICE
Property damage from using non-approved lubricant
Attainment of product-specific performance data is not ensured. If non-approved lubricants are used,
all liability and warranty claims against Pfeiffer Vacuum are excluded.
►Use only lubricants approved by Pfeiffer Vacuum.
►Use alternative, application-specific lubricants only following consultation with Pfeiffer Vacuum.
Permissible lubricants
●P3 (standard design)
●D2 for special applications (such as higher operating temperatures)
●Other lubricants on request
The lubricant type is specified on the rating plate
►Please refer to rating plate of the vacuum pump for type and quantity of intended lubricant.
–Only the lubricant used during initial installation is permissible.
–D2 is permitted as a replacement for D1.
►Contact Pfeiffer Vacuum if you want to use another type of lubricant.
Consumables
●Lubricant
Required tools
●Open-end wrench, 24 mm WAF
●Calibrated torque wrench (tightening factor ≤ 2.5)
Installation
20/58