Graco Husky 1050HP Repair Parts page 13

7. Grease and install the detent assembly (303♦)
into the piston. Install the o-ring (314♦) on the
cup (313♦). Apply a light film of grease to the
outside surface of the o-ring and the inside
mating surface of the base (312♦).
Orient the end of the base that has a magnet
toward the end of the cup that has the larger
cutout. Engage the opposite end of the parts.
Leave the end with the magnet free. Tilt the base
toward the cup and fully engage the parts, using
care so that the o-ring remains in place. Install
the spring (311♦) onto the protrusion on the cup.
Align the magnet in the base with the air inlet and
install the cup assembly.
Apply lithium-
based grease.
U-cup lips must
face piston.
Apply lithium-
based grease to
contact surface.
Air inlet.
334390E
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8. Grease the cup side and install the valve plate
(305♦). Align the small hole in the plate with the
air inlet. Tighten the screws (309♦†) to hold it
in place.
9. Follow steps 5–6 under
Replace Complete Air Valve, page
the seals and reattach the air valve.
Repair
10, to replace
13