HP GRACO OR PRO TI1681A manual Atomizing Air Restrictor Valve Removal and Replacement

Atomizing Air Restrictor Valve Removal and Replacement

1.Prepare the gun for service, page 41.

2.Remove the atomizing air restrictor valve (23). Inspect the o-ring (23c*). Replace if necessary. See FIG. 34..

3.Install a new atomizing air restrictor valve (23), or disassemble and replace parts individually. The valve protrusion must be oriented to clear the air valve (21) shaft.

If the atomizing air restrictor valve is not desired, install the supplied plug (47).

4.Torque the valve housing (23a) to 15-20 in-lb (1.7-2.3 N•m).

Repair

2.Loosen the screw (48). Remove the valve.

3.Lubricate the o-rings (22a* and 22b*) with non-sili- cone grease, Part No. 111265. Do not over-lubri- cate.

CAUTION

Do not over-lubricate parts. Excessive lubricant on the o-rings can be pushed into the gun air passage and blemish the finish on the workpiece.

4.Clean and inspect parts for damage. Replace if nec- essary.

The protrusion on the retainer plate (22d) must point upward.

5.Reinstall the valve. Torque the screw (48) to 15-25 in-lb (1.7-2.8 N•m).

22d 22f 22g

23c*	47	22e
		22b*
23a

	22c
23d	22a*
	23b

48

TI1488A

TI1686A

Fig. 34. Atomizing Air Restrictor Valve

Fig. 35. ES ON/OFF Valve

ES ON/OFF Valve Repair

1. Prepare the gun for service, page 41.

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