Graco 233501, 233776, 233500, 233777 Service, Air Valve Repair, Tools Required, Disassembly

Service

Air Valve Repair

Tools Required

D3 mm allen wrench

DNeedlenose pliers

DRetaining ring removal tool

DO-ring pick

Disassembly

NOTE: Air Valve Repair Kit 245066 is available. Parts included in the kit are marked with a dagger, for exam- ple (8{). Use all the parts in the kit for the best results.

1.Remove the side cover (31) and felt dampener (29).

2.Remove the four screws (36), air valve cover (17), and gasket (16). See Fig. 7.

3.See Fig. 6. Note the orientation of the air valve plate (13) relative to the fluid outlet arrow, with “POM” marking up. Pull the plate out of the center housing (1). Remove the three o-rings (14, 15) and the two o–rings (43) from the plate. See Fig. 7.

4.Remove the air valve cup (12) from the center housing (1).

5.Remove the retaining rings (11) and plug (9) from both sides, and slide the carriage (7) from the center housing (1). Remove the o-rings (8, 10) from the carriage and the plug.

6.Clean all parts and inspect for wear or damage. Replace parts as needed.

Orient “POM” marking on air

1valve plate as shown in relation to fluid outlet arrow.

1

“POM” marking

fluid outlet

arrow 1

13{

ti15226a

Fig. 6

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