Alemite 7735 Manuel d'entretien - Page 8

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6-03SER 7735

Overhaul

NOTE: Refer to Figure 2-A and 2-B for

component identification on all overhaul

procedures.

Prior to performing any maintenance procedure, the

following safety precautions must be observed. Personal

injury may occur.

WARNING

Do not use halogenated hydrocarbon sol-

vents such as methylene chloride or 1,1,1-trichlor-

ethane in this pump. An explosion can result

within an enclosed device capable of containing

pressure when aluminum and/or zinc-plated parts

come in contact with halogenated hydrocarbon

solvents.

Release all pressure within the system prior to

performing any overhaul procedure.

• Disconnect the air supply line from the pump

motor.

• Into an appropriate container, operate the

control valve to discharge remaining pressure

within the system.

Never point a control valve at any portion of your

body or another person. Accidental discharge of

pressure and/or material can result in injury.

Read each step of the instructions carefully. Make

sure a proper understanding is achieved before

proceeding.

Disassembly

Separate Pump Tube from Air Motor

1. Clamp the motor housing horizontally in a vise.

2. Remove Nuts (6), Lockwashers (5), and Screws (4)

that secure Camlock Adapter (19) to Air Motor

Assembly (1).

• Remove the Camlock Adapter from the Air Motor

Assembly.

3. Remove O-Ring (18) from the Camlock Adapter.

4. Unscrew Upper Tube (23) from Body (10).

• Use a strap wrench.

5. Slide the Upper Tube away from the Air Motor to

expose Lower Rod (21).

Revision (6-03)

Medium-Pressure Bulk Grease Pump

CAUTION

Support the Lower Rod assembly and piston rod

during Roll Pin (20) removal. Damage to compo-

nents can occur.

6. Remove Roll Pin (20) that secures the Lower Rod to

the piston rod.

• Use a punch and a small hammer.

7. Place a socket wrench on Nut (36) and unscrew the

Lower Rod assembly from the piston rod.

Pump Tube Upper Packing

8. Unscrew Outlet Extension (7) from Body (10).

9. Unscrew Cap Screws (17) that secure Body (10) to the

Air Motor.

• Do not remove the Cap Screws from the Body.

10. Remove the Body from the Air Motor.

• Use the Cap Screws as levers.

11. Remove O-Rings (16) from the Body.

12. Position the Body on the bench with the larger

diameter facing upward.

CAUTION

Use internal circlip pliers to remove Circlip (15).

Tension on the Circlip requires the use of Truarc #

0700-09 or equivalent pliers for removal. Damage

to component may occur.

13. Remove Circlip (15) from the Body.

14. Remove Washer (14), U-Cup Seal (13), Bearing (12),

and Seal (11) from the Body.

15. Remove O-Ring (8) and O-Ring (9) from the Body.

Pump Tube

16. Remove the Lower Rod assembly from the bottom of

Lower Tube (29).

17. Unscrew Nut (36) from the Lower Rod.

18. Remove Valve Plate (36), Spacer (34) from the Lower

Rod.

19. Remove Lower Valve Seat (33), Support Ring (32),

and U-Cup Seal (31) from the Lower Rod.

• Remove the U-Cup Seal and the Support Ring from

the Lower Valve Seat.

Alemite Corporation