Graco Inc 247937 Remove and Replace Atomizing Air Restrictor Valve, Repair ES ON/OFF Valve

Remove and Replace Atomizing Air Restrictor Valve

1.Prepare the gun for repair, page 27.

2.Remove the atomizing air restrictor valve (23). Inspect the o-ring (23c*). Replace if necessary. See FIG. 22.

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 (2).

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

23c* 2

23a

23d

23b

ti1508a

Fig. 22. Atomizing Air Restrictor Valve

Gun Repair

Repair ES ON/OFF Valve

1.Prepare the gun for repair, page 27.

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.

NOTICE

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).

22g

22d

22e

22f

22b*

22c

22a*

ti12720

Fig. 23. ES ON/OFF Valve

312900C 35