Remove And Replace Atomizing Air Restrictor Valve; Repair Es On/Off Valve - Graco PRO 247936 Instructions Manual

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
F . 22.
IG
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).
Fig. 22. Atomizing Air Restrictor Valve
312900C
23c*
2
23a
23d
23b
ti1508a

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).
22d
22e
22b*
22c
22a*
Fig. 23. ES ON/OFF Valve
Gun Repair
22g
22f
ti12720
35