Graco Inc 244582, 309293K, 244581 Fluid Adjustment Valve Repair, Air Valve Repair

Repair

Fluid Adjustment Valve Repair

1.Prepare the gun for service, page 41.

2.Remove the fluid adjustment valve (25). It can only be replaced as a complete assembly. See FIG. 32..

3.Screw the valve (25) into the gun handle. Torque to 15-25 in-lb (1.7-2.8 N•m).

25

TI1684A

Fig. 32. Fluid Adjustment Valve

Air Valve Repair

4.Remove the air valve (21?) with a pliers. Inspect the seal (21a*) and replace if damaged. Be sure the seal is pressed securely onto the valve so the outer cone is flats.

CAUTION

When removing the air valve (21) be careful not to damage the seat area.

5.Inspect the u-cup (6*). Do not remove the u-cup unless damaged. If removed, install the new one with its lips facing into the gun handle (17).

6.Install the air valve (21) and spring (15) into the gun handle (17).

7.Install the fluid adjustment valve (25). Torque to 15-25 in-lb (1.7-2.8 N•m).

8.Install the barrel, page 46.

1.Prepare the gun for service, page 41.

2.Remove the barrel, page 46.

3.Remove the fluid adjustment valve (25) from the handle (17). Remove the spring (15). See FIG. 33..

CAUTION

Clean all parts in non-conductive solvent compatible with the fluid being used, such as xylol or mineral spirits. Use of conductive solvents can cause the gun to malfunction.

21a*

17

*6

TI1685A

Fig. 33. Air Valve

15

21

25

50 309293K