Alemite 3685-M Manual de servicio - Página 6

Navegue en línea o descargue pdf Manual de servicio para Unidad de control Alemite 3685-M. Alemite 3685-M 10 páginas. Mechanical-metered control valve

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SER 3685-A

Overhaul

Prior to performing any maintenance procedure, the

following safety precautions must be observed. Personal

injury may occur.

WARNING

Do not use halogenated hydrocarbon

solvents such as methylene chloride or 1,1,1-

trichloroethane in this valve. An explosion can

result when aluminum and/or zinc-plated parts in

the valve 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

NOTE: Refer to Figures 2-A, 2-B and 3

for component identification on all over-

haul procedures.

Metered Control Valve

NOTE: The following procedures pertain

to all models of metered control valves.

1. Unscrew the extension assembly from Meter

Assembly (8).

2. Separate the components of the extension assembly.

Shroud and Register Assembly

3. Unscrew Screws (28) that secure Shroud (27) to

Housing (15)

• Remove the Shroud from the Housing.

4. Blow low pressure air into the valve's inlet to rotate

the Outer Pointer to the 11 o'clock position.

Revision (11-08)

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

Mechanical-Metered Control Valve

5. Turn Outer Pointer (29) counterclockwise until the access

hole in the Pointer lines up with the setscrew.

• See Figure 2-B inset.

6. Loosen the setscrew that secures the Outer Pointer to

Spindle and Gear Assembly (14).

• Remove the Outer Pointer from the Spindle and Gear

Assembly.

7. Remove Inner Pointer (30) Dial (31) and Cam (21) as an

assembly from the Spindle and Gear Assembly.

• Push the Cam Assembly from the Inner Pointer and Dial

to separate components.

8. Carefully remove Spring (22) and Roller (23) from the

Cam as required.

9. Remove Pointer Gear (26) and Washer (25) from Register

Assembly (24).

10. Remove the Register Assembly from the Housing.

HINT: Compress the spring with the nylon gear

to clear Worm Gear (20).

11. Loosen Setscrew (19) that secures Worm Gear (20) to the

Spindle and Gear Assembly.

• Remove the Worm Gear from the Spindle and Gear

Assembly.

Metering Mechanism Assembly

12. Unscrew Cap (10) from the Housing.

• Remove O-Ring (11) from the Cap.

13. Remove Chamber and Piston Assembly (12), Planetary

Gear (13), and the Spindle and Gear Assembly from the

Housing.

14. Remove Gland Nut (18) from the Housing.

• Remove O-Ring (17) from the Gland Nut.

15. Remove Washer (16) from the Housing.

Inlet Swivel, Valve, and Lever Assembly

16. Unscrew Swivel Assembly (9) from Adapter (32).

17. Unscrew the Adapter from the Housing.

• Remove O-Ring (33) from the Adapter.

18. Remove Screen (34), Spring (35), Valve Assembly (36),

and Valve Sleeve (37) from the Housing.

19. Remove Screws (40) that secure Lever Assembly (41) to

Cam (39).

• Remove the Lever Assembly from the Cam.

20. Push the Cam from the Housing.

• Remove Quad Rings (38) from the Cam.

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