Pfeiffer Vacuum Pascal Series Caractéristiques techniques

MAINTENANCE INSTRUCTIONS

Translation of the original instructions

PASCAL SERIES

Rotary vane pumps 5 to 21 m

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

number

< 110000

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

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.

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

48 53

EN – 9

ENMaintenance

1 4 4a

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

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.

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