Repair
3A0732U 19
4. Follow the Reconnect the Reconnect the
Displacement Pump, pg 19.
Reconnect the Displacement
Pump
1. Screw the displacement pump into the adapter
plate (10) until it stops. Back off pump less than 1
turn, to align pump outlet as desired.Tighten the
jam nut (13). Torque to 65-75 ft-lb (88-102 N•m).
2. Align the hole in the displacement rod with the hole
in the air motor rod. Use a screwdriver to push in
the pin (18).
3. Push the retaining spring (19) into place to cover
the pin.
4. Fill throat packing nut wet-cup (103) with TSL to
prevent premature packing wear.
Repair Air Valve
Replace Complete Air Valve
1. Stop the pump. Follow Pressure Relief
Procedure, page 10.
2. Disconnect the air line to the motor.
3. See F
IG. 18 on page 25. Remove four screws (211).
Remove the air valve (214) and gasket (209*
◆
).
4. To repair the air valve, go to Disassemble the Air
Valve, page 20. To install a replacement air valve,
continue with step 5.
5. Align the new air valve gasket (209*
◆
) on the
manifold, 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
FIG. 11: Intake housing assembly
119
117
116‡
110
111‡
109
107‡
105
NOTICE
The displacement pump can be damaged if the
stroke is not centered when the pump is recon-
nected. Be sure to fully screw the displacement
pump into the adapter plate (10).