Spare Parts 8663A Page 2
WARNINGS - INSTALLATION AND MOUNTING The user of these devices must conform to all applicable electri- cal, mechanical, piping and other codes in the installation, opera- tion or repair of these devices. INSTALLATION! Do not attempt to install, operate or repair these devices without proper training in the technique of working on pneumatic systems and devices, unless under trained supervi- sion. Compressed air systems contain high levels of stored energy. Do not attempt to connect, disconnect or repair these products when a system is under pressure. Always exhaust the pressure from an air system before performing any service work. Failure to do so can result in serious personal injury.
is necessary. No parts are contained in repair kit for the Ceramic Stack area (6); DO NOT DISASSEMBLE. Remove piston assembly(ies) (5) and O-ring(s) (7). Place new greased O-ring(s) (7) on tube(s) then push piston assembly(ies) over tube(s) and O-ring(s).
8. Place cover back on valve body and replace screws (9) and solenoid(s) (3) and O-ring(s) (10) if appropriate.
9. (Single operator, metal spring return models only) Carefully install return spring (14) and retainer (1) by fully depressing spring until retainer seals in valve body (11). Turn retainer (1) clockwise until locking tabs snap into the body.
10. Note orientation of gasket (13) before removal. Remove and replace gasket (13).
Disconnect the electrical power supply before connecting or servicing a solenoid operated valve.
11. Install and retest valve before placing back into service.
MOUNTING! Devices should be mounted and positioned in such a manner that they cannot be accidentally operated.
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REPAIR INSTRUCTIONS General Note: Grease all new O-rings with grease tube provided in kit before installation.
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1. Remove valve from base by loosening and removing the four mounting bolts (4).
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Air spring return Note: This assembly contains a blue piston.
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2. (Solenoid Models only) Remove solenoid mounting screws (12) and solenoid(s) (13) from valve.
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3. (Single operator, metal spring return models only) CAUTION: Spring under pressure. Carefully remove spring re- tainer (1) and return spring (14) by turning retainer (1) approxi- mately 1/4 turn counterclockwise allowing it to be removed from the valve body (11). Do not reuse retainer (1); use new one from kit. Locking tabs break off during removal.
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Metal spring return
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4. Loosen and remove saddle cover to valve body retaining screws (9).
14 End
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12 End
5. Carefully lift the saddle cover (2) from the valve body (11).
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6. Two position valves only: These piston assemblies are con- tained in the repair kit. Two are the same (contain black pis- tons); these are used for single operator, metal spring return valves and double operator models. When repairing a valve with an air spring return, the third piston assembly (contains a blue piston) is used on the "12" end of the valve.
7. Remove and replace five O-rings (8) in valve body (11) then set valve body aside, no further disassembly of valve body
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