Disconnect The Air Motor - Graco Merkur W10CAS Assembly

Disconnect the Air Motor

1. Flush the pump, if possible. (See page 13.) Relieve
the pressure. (See page 11.)
2. Disconnect the air and fluid hoses, the ground wire
(13), and the tie rod shield (11).
3. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (9).
4. Use a socket to remove the tie rod nuts (6): 13 mm
for M02xxx, 23 mm for all others.
5. Use a 13 mm socket to remove the top two mount-
ing screws (MS).
6. Lift up on the air motor to remove it. The tie rods (5)
and drip shield (12) will remain attached.
Cart Mount: Remove the two screws on the arms
and tip back or remove the air control panel for eas-
ier removal of the air motor.
5
11
7. Slide the drip shield (12) off
the tie rods (5).
8. Use a socket on the flats of
the tie rods (5) to remove
them from the bottom cover of
the air motor.
312794F
MS
6
ti12819a
12
ti12916a
See manual 312796 for air motor service and parts
information,
Reconnect the Air Motor
1. Slide the drip shield (12) onto the tie rods (5).
2. Screw the tie rods (5) into the bottom cover of the air
motor. Torque according to the following table:
Motor
M02xxx
All Other Sizes
3. As needed for the larger air motors, use two people
to reattach. Align the tie rods (5) with the holes in
the pump adapter (3). Carefully lower the air motor
into place.
4. Attach the tie rod nuts (6) and torque according the
following table:
Motor
M02xxx
All Other Sizes
5. Tighten the mounting screws.
6. Hand tighten the coupling nut, then torque accord-
ing to the following table:
Motor
M02xxx
All Other Sizes
7. Connect the air and fluid hoses, the ground wire,
and the tie rod shield.
Repair
Torque
5-10 ft-lb (7-13.5 N•m)
50-55 ft-lb (68-75 N•m)
Torque
15-20 ft-lb (20-27 N•m)
50-60 ft-lb (68-81 N•m)
Torque
23-26 ft-lb (31-35 N•m)
75-80 ft-lb (102-108 N•m)
17