Graco 3A2495C important safety instructions Fan Air Adjustment Valve Repair

Repair

Fan Air Adjustment Valve Repair

1.See Prepare the Gun for Service, page 39.

2.Place a wrench on the flats of the valve assembly (30) and unscrew it from the handle (16).

NOTE: You may replace the valve as an assembly (go to step 9) or as individual parts (steps 3-9).

3.Remove the retaining ring (30d).

4.Turn the valve shaft (30b) counterclockwise until it comes free from the valve housing (30a).

5.Remove the o-ring (30c).

6.Clean all parts and inspect for wear or damage.

NOTE: Use non-silicone grease, Part No. 111265. Do not over-lubricate.

7.When reassembling the fan air valve (30), lightly lubricate the valve threads and screw the shaft (30b) fully into the housing (30a) until bottomed. Install the o-ring (30c*), lubricate, and unscrew the valve stem until the o-ring enters the housing.

8.Reassemble the retaining ring (30d). Unscrew the valve stem from the housing until it is stopped by the retaining ring.

9.Screw the valve assembly (30) into the gun handle (16), using a wrench on the flats of the housing. Torque to 15 in-lb (1.7 N•m).

Figure 37 Fan Air Adjustment Valve

48 3A2495C