Centrifugal Unloader Service

16

1. CRANKSHAFT 2. END COVER 3. TUBE FITTING 4. TUBE NUT 5. TUBE 6. END COVER SCREW 7. WEIGHT RETAINER 8. BUMPER SPRING 9. WEIGHT 10. ROLL PIN 11. SPECIAL BOLT 12. PISTON STOP 13. SPRING 14. PISTON 15. VALVE STEM 16. HOUSING ASSEMBLY 17. GASKET 18. HOUSING SCREW

CENTRIFUGAL UNLOADER

FIGURE 87 19. TUBE FITTING 20. VALVE RETAINER 21. BALL 22. SPRING 23. NUT 24. FILTER NUT 25. SCREEN 26. FELT

NOTE: When using the three-phase motors be sure of proper rotation or the weight retainer assembly will quickly work loose. Test motor rotation without the belts assembled. Ifthe compressor has been briefly shut off and air leaks from the unloader filter opening, a check valve is leaking. Inspect the spring, ball and seating surface ofthe retainer. Repair or replace parts as necessary (figure 87).

AIR LINE LUBRICATORS

MICRO-FOG LUBRICATOR

Shut off the air pressure and remove the sightfeed dome gasket and the lock washer. See figure 88. Use a 3/32 inch Allen wrench to removethe oil feed adjustment screw (left-hand thread).

Remove thereservoir and unscrew the constant oil feed assembly. Remove the venturi plug and unscrew the siphon tube.

NOTE: Do not lose the ball which rests above the siphon tube. Clean the remainder of the disassembled parts, using soap and water or a petroleum solvent such as kerosene. Replace damagedparts and reassemble the lubricator.

WARNING: The plastic parts ofthe lubricator will be damaged by acetone, methyl alcohol, benzene, dioxone, ethyl acetate, lacquer thinners, toluene, carbon tetrachloride and other aromatic hydrocarbons, chlorinated hydrocarbons orstrongalkaline substances. OIL FOG LUBRICATOR (TYPE 10-002, 3 OZ. AND 1/3 PINT SIZE) To disassemble, shut off the air pressure, relieve line pressure and remove clamp ring (18). See figure 89. After removing bowl (16) unscrew siphon tube assembly (13) and check valve assembly (14). Remove needle valve assembly (1), and unscrew drip gland (5) with an Allen wrench. Then remove venturi tube (9) from below. Carefully clean and inspect all parts.

OIL FOG LUBRICATOR (TYPE 10-002, 1/2 PINT SIZE) To disassemble, shut off the air pressure, relieve line pressure and remove screws (12, figure 90). Remove clamp ring (19). Remove bowl (17) and unscrew siphon tube assembly (14) and check valve assembly (15). Remove needle valve assembly (1) and unscrew drip gland (5) with an Allen wrench. Push out venturi tube (9) from below.