Pfeiffer Vacuum Pascal Series Technical specifications

MAINTENANCE INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
EN
EN
Translation of the original instructions
Translation of the original instructions
PASCAL SERIES
PASCAL SERIES
Rotary vane pumps 5 to 21 m
Rotary vane pumps 5 to 21 m
3
3
/h
/h

EN – 1
MaintenanceNomenclature EN
Rotary vane pumps
Dear customer,
This Maintenance instructions is
intended for customers of the
Pfeiffer Vacuum Company.
It describes the product
maintenance operations which
can be performed by the user
on the product concerned.
This documentation must
be used together with the
operating manual for the
product of the same name.
Maintenance
Safety instructions for maintenance ............................................................ 3
Tools and consumable products .................................................................. 4
Replacement of external shaft seal.............................................................. 7
Disassembling the pump............................................................................. 8
Cleaning components................................................................................. 13
Replacement of shaft seals ......................................................................... 14
Reassembling the pump.............................................................................. 15
Service....................................................................................................... 19
Nomenclature
Spare parts lists............................................................................N - 1 à N - 23

EN – 2
Indicates a potentially hazardous situation which, if not avoided, could result
in moderate or minor injury. It may also be used to alert against unsafe
practices.
Indicates a potentially hazardous situation which, if not avoided, could result
in property damage.
Indicates an imminently hazardous situation that, if not avoided, will result
in death or severe injury (extreme situations).
Indicates a potentially hazardous situation which, if not avoided, could result
in death or severe injury.
Before switching on the product, study operating instructions and make sure
you follow the safety instructions it gives. You can recognise these by the
‘Caution’, ‘Warning’ and ‘Danger’ symbols.
Good practice tips and manufacturer’s recommendations are in a grey box.
MANUAL P/N: 103275M
EDITION: 04 - April 2017
Translated from original version

EN – 3
ENMaintenance
General precautions
Safety instructions for maintenance
For normal operation, the maintenance of 5 to 21 m3/h series pumps only require
regular oil changes (see Operating instructions).
Insufficient tightness after servicing could result in chemical hazards. Always
perform a leak test after maintenance.
Certain gases can become corrosive and toxic after decomposing when
trapped in oil. Always wear protective gloves when handling used and
dirty pump oil, drain it into a closable container, and do not breathe the oil
fumes. Always use fully self-contained breathing apparatus.
During pump removal, draining or maintenance operator could be in
contact with process residues which could cause severe injury or death.
Ask your safety department for instructions according to the local
regulations.
We recommend:
- To purge the pumping installation with dry nitrogen.
- To wear gloves, protective glasses, breathing mask or any appropriated
safety equipment.
- To ventilate the premises well.
- Not to eliminate maintenance waste via standard disposal channels. Have
it destroyed by a qualified company if necessary.
- To install the inlet and exhaust blanking plates, these accessories are
delivered with the pump.
Decontamination – product dismantling
According to the regulations 2012/19/EU about Waste of electrical and
electronical equipments, and 2011/65/EU about Restriction of Hazardous
substances, the manufacturer provides a recycling paid service for the
end of-life of electrical and electronic equipment.
Any obligation of the manufacturer to take back such equipment shall
apply only to complete not amended or modified equipment, using Pfeiffer
Vacuum original spare parts, delivered by Pfeiffer Vacuum, containing i.e.
all its components and sub-assemblies.
This obligation will not cover the shipping cost to a Pfeiffer Vacuum taking
back facility.
Whenever you return the product to an repair service center, please
make sure you follow the Service procedure and fill in the declaration of
contamination found on our website.
Maintenance must be performed by a skilled maintenance operator trained
in the relevant health and safety aspects (EMC, electrical hazards, chemical
pollution, etc.).
Isolate the product from all energy sources (mains electricity, compressed air,
etc.) before starting work.

EN – 4
Tools and consumable products
Overhaul kit
Seal kit This kit contains all the seals on the pump which must be replaced at each complete
disassembly.
Pumps 1005 1015 2005 2010 2015 2021
I – 105515 103912
SD / SDI 103911 105515 103911
C1 104975
C2 – 104975
Keep this kit in a dry place, away from heat and light (sunlight and ultraviolet light),
in order to prevent any hardening of the elastomers (see AFNOR standards: “storage
conditions for vulcanized elastomer based products” - FD T.46 022).
Special precautions Read the safety instructions at the beginning of the maintenance chapter.
Before disassembling the pump, drain it (see Operating instructions).
All the seals and faulty parts should be replaced: provide a seal kit or an
overhaul kit.
Spare parts
In addition to the seal kit, this kit contains a set of spare parts to perform overhaul on
the pump for a two year period, under normal operating conditions.
Pumps 1005 1015 2005 2010 2015 2021
I – 104643 103906 103907 103908 103909
SD / SDI * 104622 104643 103902 103903 103904 103905
C1 104617 104619 104976 104977 104978 104979
C2 – – 104614 104615 104616
* For SDI pump with no flanged stator, use a major kit P/N 108308.
The pumps are equipped with :
• a shouldered not chromed ring (36) for I, SD and SDI models with serial number
< AM656245
• a shouldered chromed ring (36) for I, SD and SDI models with serial number
≥AM656245
• a shouldered chromed ring (36) for C1 and C2 models.
The shouldered not chromed ring is a spare part that must be replaced with a
chromed ring.
The shouldered chromed ring needn’t systematically to be changed.
For fasted service, specify the following when ordering:
- Pump type.
- Serial number (on pump label).
- Part number (see list at end of operating instructions).
Overhaul kits containing the most frequently used parts are always available at our sales
outlets. Be sure to use these kits so you will have all the parts necessary.

EN – 5
ENMaintenance
Vane kits for 2-stage pumps This kit contains only vanes and springs in order to maintain several pumps of the same
model (see table here after).
Pumps 2005 2010 2015 2021
LP stage vane kit 108417 108396 108397 108398
Vane / Spring (quantity) 20 / 22 20 / 42 20 / 62 20 / 62
HP stage vane kit* 108417 108399 108399 108399
Vane / Spring (quantity) 20 / 22 20 / 22 20 / 22 20 / 22
* except models C1 and C2.
Pumps 2005 2010 2015 2021
Oil vane pump kit** 108407 (10 vanes)
** except models SD and C2.
External shaft seal replacement
kit (parts for shaft passage
tightness on motor side)
This kit contains all the parts which
must be replaced in the event of a leak
on the shaft on the motor side.
Screw kit This kit contains all screws and
washers for the range of Pascal’s
pump.
Pump models P/N
All pumps 104919
Pump models P/N
All pumps 065612
Spare parts (cont’d)
For safety reasons, the manufacturer recommends that single-phase motors be properly
maintained. Although there is only an extremely small risk of flammability, you are
advised to replace the capacitors and/or the motor in the following cases:
Single-phase motor with ID number < 110000 :
• replace the motor immediately by ordering a new motor.
• then, every 5 years, replace the capacitors and the relays by ordering a kit.
Single-phase motor with ID number > 110000 :
• every 5 years, replace the capacitors and the relays by ordering a capacitor kit.
• after 15 years, replace the motor by ordering a new motor.
Single-phase motor
to maintain Capacitor/relay kit New equipped motor
ID
number
< 110000
ID
number
> 110000
P/N Description Ordering P/N
103749 110944
111695 Capacitors (300μF, 20μF) +
relay
108694
103750 110913 108696
104734 110600 108697
105132 110946 108698
106442 110947 108699S
107876 110948 111701 Capacitors (300μF, 2 5 μF) +
relay 108802S
The procedure for replacing capacitors and relays is provided with the capacitor kit.
Capacitor kit for single-
phase motors

EN – 6
Recommended tools • Two 5.5 x 100 flat screwdrivers
• Thin spanner: 10 mm on face
• Male hexagonal wrench: 2.5 - 3 - 4 - 5 - 12 mm 5
• 12 mm female hexagonal wrench
Tools kit This kit contains the usefull tools to
disassemble and reassemble the shaft
seals in the different flanges and
flanged stators (see table bellow).
Pump models P/N
All pumps 112397
Specific tools
HP and LP no flanged
stator (plan D)
HP flanged stator
(plan C)
LP flanged stator
(plan C)
Lip seal assembly mandrel A462651 A462651 A462651
Protective sleeve
A463545 A463545 A463545
Lip seal disassembly mandrel –– A462649
Tools and consumable products
(cont’d)

EN – 7
ENMaintenance
Replacement of external shaft seal
In the event of an external oil leak on the pump, it is necessary to change the
external shaft seal on the motor side (see page N – 4).
You will need:
a front seal replacement kit (see page 5),
a screwdriver,
a 3, 4 and 5 mm Allen wrench,
a lip seal mandrel (see page 6).
Stop the pump and disconnect the power cord motor.
Disconnect the pump from the installation to which it is connected.
If possible, position the pump vertically, with the motor at the top, resting on the front
side of the oil case; in this position, it is not necessary to drain the oil case. Otherwise,
disassemble the pump in the horizontal position, resting it on its base, after it has been
drained (see Operating instructions).
Disconnect the motor by unscrewing the 4 fastening screws, simultaneously and
alternately.
Remove the motor vertically.
Unscrew the fan fastening screw. Remove
the fan, the key and the support washer.
With a screwdriver, remove the shouldered
ring (36) and its O-ring (35).
Unscrew the two seal-holder fastening
screws (37, 38) and remove the seal-holder
(39).
Remove the seal (40) from the seal-holder
as described on page 14 (picture 1) and
discard it.
Clean the metal parts. Inspect the wearing
side of the shaft sleeve: after cleaning, the
sleeve may show a perfectly normal trace
of rubbing (caused by polishing). Should
the sleeve show any signs of indentation or
grooves, it must be replaced.
Use new parts from the external shaft seal
replacement kit or from the overhaul kit.
Reassemble the lip seal (40) in its housing as
described on page 14.
Reinsert the new O-ring (41a) on the seal-holder (39).
Insert the shaft sleeve inside the shouldered ring (36).
Engage the reassembled seal-holder on its axis and screw onto the frame.
Insert the O-ring (35) in the shaft sleeve. Position the support washer. Then, install the
key, reassemble the fan and the motor in the reverse order of disassembly.
Immediately order an external shaft seal replacement kit or an overhaul kit (see
page 5).
35 36 39
40
41a
3738

EN – 8
Disassembling the pump
Disassembling
the fan coupling
(see page N – 2)
Replacing
the front seal
Disassembling
the gas ballast
except model pump C2
(see page N – 2)
Disassembling
the motor block
cover
Follow the chronological order of disassembling instructions.
See the drawings and their part lists in pages N–1to N – 23.
Removing pump from
system
The following steps are necessary to protect the pump as far as possible from the
effects of corrosion:
• Flush pump with a neutral gas (dry nitrogen) during half an hour to prevent toxic or
corrosive gases accumulating in the pump.
• C2 Model: Disconnect the nitrogen lines to the pump.
• Disconnect the pump from the system and seal off the inlet and exhaust ports. Bring
the pump to the maintenance area immediately.
• Drain pump (see Operating instructions).
The first phase of disassembly is to disassemble the motor, the second is to disassemble
the pumping module.
Th fi t h f di bl i t di bl th t th d i t di bl
Do not store a pump in this condition for any length of time: once the
neutral gas has dissipated, the inside of the oil case will be in contact with
the ambient air laden with water vapor; this may react with the pumped
gases to form acids that may corrode the pump even at room temperature.
Study the general precautions listed on Maintenance chapter page 3.
Remove the motor cover.
5Remove the motor attachment screws
(5) (see page N – 18).
If the motor is damaged, replace it (see
page N – 19).
Remove the fan (33) fastening screw
(28) and the support washer (26).
Remove the key.
28
33
See page 7.
Remove the gas ballast cover (58)
(2 screws), the adjustment button (55),
the spring (54) and the sleeve (53).
Remove the tank feed-through (49)
(2 screws) and its seal (48).
55 58 54
49
48 53
5
1
3
6

EN – 9
ENMaintenance
1 4 4a
5
2 8
Remove the sight glass cover (3).
Remove the plate (1), the ring (4a), the
sight glass (4) and the O-ring (5).
Disassembling
the oil sight glass
(see page N – 2)
Removing
the oil case
(see page N – 2)
Disassembling the
bubbler (C2 pump)
(see page N – 20)
5Remove the oil case (6) and its
O-ring (11) after removing the 4 fastening
screws (9).
Disconnect the nitrogen inlet.
Remove the nitrogen inlet and disconnect
the coupling (2) without unscrewing the
connector (6).
Disconnect the nut (16) which secures the
tube on the functional block and pull the
bubble (8) to release it from the frame.
Disassembling the
exhaust valve cover
(see page N – 6)
5Remove the screws (4) (13) (15) and the
cover(s) (6) (17), the exhaust valves (2) (11)
and their springs (3) (12).
4 13
6 17
15
Disassembling the
sniffer pipe
(SDI model)
(see page N – 10)
5Remove the screw (41) and its washer.
Insert a flat screwdriver near to the stator
connector, and use it as lever arm to
remove the sniffer pipe (38) from the stator.
Then, pull on the other end of the pipe to
remove it from the housing.
41
38