Alemite 9668 Panduan Servis - Halaman 6

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Halaman Cetak

SER 9668

Overhaul

NOTE : Refer to Figures 2 and 3 for compo-

nent identiﬁcation on all overhaul proce-

dures.

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-trichlo-

roethane in this pump. An explosion can result

when aluminum and/or zinc-plated parts in the

pump come in contact with halogenated hydrocar-

bon 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 Air Motor from Pump Tube

1. Clamp the pump assembly in a soft-jaw vise at

Bung Adapter ( 22 ).

2. Remove Capscrews ( 10 ) that secure Body ( 6 ) to the

Air Motor assembly.

• Remove Keepers ( 9 ) from the Body.

3. With a side-to-side motion, pull Air Motor

Assembly ( 1 ) from the Body.

• Lubricate O-Ring ( 5 ) with oil to ease separation.

Pump Tube

4. Remove O-Ring ( 5 ) from the Body.

5. Unscrew Adapter (8) from the Body.

6. Remove O-Ring (7) from the Adapter.

Revision (1-97)

1-800-548-1191-http://[email protected]

7. Unscrew Tube ( 21 ) [with Bung Adapter ( 22 )] from the

Body.

• Remove the Bung Adapter from the Tube as required.

8. Remove O-Ring ( 19 ) and Back-Up Ring ( 20 ) from the

Tube.

9. Remove Screw ( 2 ) that secures Air Piston ( 3 ) to

Rod ( 15 ).

• Remove the Air Piston from the Rod.

10. Remove O-Ring ( 4 ) from the Air Piston.

11. Pull the Rod assembly from the bottom of the Body.

12. Unscrew Valve Seat ( 18 ) from the Rod.

• Remove Ball ( 17 ) and Nylon Piston ( 16 ).

13. Remove Spacer ( 14 ) and Seal ( 13 ) from the Body.

14. Remove Bearing ( 12 ) and Seal ( 11 ) from the Body.

Foot Valve Assembly

15. Unscrew Foot Valve ( 27 ) from Tube ( 21 ).

16. Remove O-Ring (26) from the Foot Valve.

17. Remove Pin (28) from the Foot Valve.

18. Remove Washer (23), Spring (24), and Ball (25) from

the Foot Valve.

Clean and Inspect

NOTE : Use the appropriate repair kit for

replacement parts. Make sure all the compo-

nents are included in the kit before discard-

ing used parts.

1. Clean all metal parts in cleaning solvent. The solvent

should be environmentally safe.

2. Inspect all parts for wear and/or damage.

• Replace as necessary.

3. Inspect Air Piston ( 3 ) for fatigue cracks.

• Replace as necessary.

4. Inspect Nylon Piston (16) and Rod (15) closely. Use a

magnifying glass to detect any score marks on the Rod.

• Replace as necessary.

5. Closely inspect the mating surfaces of all check valve

components for any imperfections. Ensure a smooth

and clean contact is obtained when assembled.

EXAMPLE : Place Ball ( 25 ) into Foot Valve

( 27 ). Fill the Foot Valve with solvent. Make

sure no leakage occurs.

Medium-Pressure Stub Pump

Alemite Corporation