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Repair
18 332245E
Disconnect the Air Motor
1. Flush the pump, if possible. See Flush, page 10.
Relieve the pressure. See Pressure Relief Proce-
dure, page 9.
2. Disconnect the air hose, fluid hoses, and the ground
wire (109).
3. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (106).
4. Use a 23 mm socket to remove the tie rod nuts
(105).
5. Use a 13 mm socket to remove the top two mount-
ing screws (209).
6. Lift up on the air motor to remove it. The tie rods
(104) and will remain attached.
NOTE: Remove the two screws on the arms and tip
back or remove the air control panel for easier removal
of the air motor.
7. Use a socket on the flats of the tie rods (104) to
remove them from the bottom cover of the air motor.
NOTE: See air motor manual for service and parts infor-
mation.
Reconnect the Air Motor
1. Screw the tie rods (104) into the bottom cover of the
air motor. Torque to 50-55 ft-lb (68-75 N•m).
2. Align the tie rods (104) with the holes in the pump
adapter (103). Carefully lower the air motor into
place.
3. Attach the tie rod nuts (105) and torque to 50-60
ft-lb (68-81 N•m).
4. Tighten the mounting screws (209).
5. Hand tighten the coupling nut (106), then torque to
75-80 ft-lb (102-108 N•m).
6. Connect the air hose, fluid hose, and the ground
wire.
ti12819a
104
105
103
209