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Repair
3A0732J 21
Disconnect the Air Motor
1. Stop the pump.
2. Flush the pump, if possible (see page 13). Follow
Pressure Relief Procedure, page 10.
3. Disconnect the air hose, fluid hose, and suction
hose.
4. See F
IG
. 12. Push the safety spring (9) down and
hold to access the coupling pin (18). Push the
retaining spring (19) up and push out the pin, using
a screwdriver or punch.
5. Remove the nuts (11) from the bottom of the tie rods
(8).
6. Remove the pump lower (12). The adapter plate
(10) will remain attached to the lower.
7. Remove the safety spring (9).
8. Loosen the nuts (17) at the top of the tie rods, then
remove the tie rods. The mounting bracket (1) is
loosened from the motor as the tie rods are
removed.
9. Take the motor to a work bench. See Repair Air
Motor on page 22.
Reconnect the Air Motor
1. Replace the motor on the mounting bracket (1).
2. Screw the tie rods into the motor, with the top hex
nuts (17) attached. Torque the tie rods to 5-10 ft-lb
(7-13 N•m).
NOTE: Always tighten the tie rods before tightening the
top hex nuts (17).
3. Tighten the top hex nuts (17) to secure the mount-
ing bracket (1).
4. Slide the pump with the adapter plate (10) attached
onto the tie rods (8). Ensure that the safety spring
(9) is in place and the pump outlet is oriented as
desired.
5. Install the tie rod nuts (11). Torque to 100 in-lb (11
N•m).
6. Align the hole in the displacement rod with the hole
in the air motor rod. Use a screwdriver to push in the
pin (18).
7. Push the retaining spring (19) into place to cover the
pin.
F
IG
. 12. Disconnect the Air Motor
19
9
18
TI16261A
11
8
10
1 17