HP GRACO OR PRO TI1681A manual Air Cap/Nozzle Replacement

Repair

Air Cap/Nozzle Replacement

CAUTION

Hold the front end of the gun up and trigger the gun while removing the nozzle to help drain the gun and prevent any paint or solvent left in the gun from enter- ing the air passages.

1.Prepare gun for service, page 41.

2.Remove the retaining ring (27) and air cap (9). See FIG. 24..

3.Point gun up and squeeze trigger while removing the fluid nozzle (7) assembly with the multi-tool (37).

27

27a*

9

37

7

7a

7b

ti1501a

Fig. 24. Air Cap/Nozzle Replacement

WARNING

Fire, Explosion, and Electric Shock Hazard

The nozzle contact ring (7a) is a conductive contact ring, not a sealing o-ring. To reduce the risk of sparking or electric shock, do not remove the nozzle contact ring (7a) except to replace it and never operate the gun with- out the contact ring in place. Do not replace the contact ring with anything but a genuine Graco part.

Use non-silicone grease, Part No. 111265, on the small o-ring (7b). Do not over-lubricate. Do not lubricate the contact ring (7a).

4.Lightly lubricate the o-ring (7b). Install it and the contact ring (7a) on the nozzle (7).

Make sure the electrode needle (29) is finger- tight (page 43).

5.Trigger gun while installing the fluid nozzle (7) with the multi-tool (37). Tighten until the fluid nozzle seats in the gun barrel (1/8 to 1/4 turn past hand-tight).

6.Install the air cap (9) and retaining ring (27). Make sure the u-cup (27a*) is in place with the lips facing forward.

7.Test gun resistance, page 30.

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