Repair Air Valve - Graco LubePro A4000 Instructions Manual

Parts: Oil Models

Repair Air Valve

Replace Complete Air Valve
1. Stop pump. Relieve pressure. See Pressure Relief
Procedure, page 11.
2. Disconnect the air line to the motor.
3. Remove four screws (211), then remove the air
valve (214 and gasket (209*◆). See Repair Air
Motor, page 24.
4. Repair the Air Valve. To install a replacement air
valve, continue with Step 5.
5. Align the new air valve gasket (209*◆) on the mani-
fold, then attach the air valve (214). Torque screws
(211) to 95-105 in-lb (11-12 N•m).
6. Reconnect the air line to the motor.
Replace Seals or Rebuild Air Valve
NOTE:
Air Valve Seal Kits are available (see page 30). Parts
marked with †.
Air Valve Repair Kits are available (see page 30).
Parts marked with ◆.
Air Valve End Cap Kits are available (see page 30).
Parts marked with ❖.
22
Disassemble the Air Valve (F
1. Stop pump. Relieve pressure. See Pressure Relief
Procedure, page 11.
2. Perform steps 2-3 under Replace Complete Air
Valve procedure.
3. Use a 2 mm or 5/64 hex key to remove two screws
(305◆). Remove the valve plate (309◆), cup (312◆),
and spring (311◆).
◆311
◆312
◆305
F . 25
IG
4. Remove the snap ring (310❊) from each end. Use
the piston to push the end caps (307❊) out of the
ends. Remove the end cap o-rings (306†❊◆).
. 25 and F . 26)
IG IG
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309
3A5266G