TM 55-4920-394-13&P
4-30. Compensator Removal.
a. Make certain all pressure is dumped from the hydraulic system.
CAUTION
Introduction of dirt or other foreign matter to the pump will
cause erratic pump operation and in some instances
premature pump failures. Always exercise extreme caution
when removing component to prevent the intrusion of such
matter.
b. Disconnect the hose assembly (2) from 45 degree elbow (3) and plug both openings.
c. Remove the compensator cap assembly by removing the four cap screws securing it to the pump.
d. Lift compensator from pump.
NOTE
The piston (5) must come out with the compensator. If it does not,
remove.
e. Provide a suitable cover for the compensator mounting pad to prevent introduction of foreign matter into
the pump.
a. Drop piston assembly (5) out of control cylinder (6).
b. Unscrew the adjustment housing (11) from compensator cap (26). Remove the spring retainer (12),
spring (13), seal piston (14) and O Ring (15). Remove the O Ring (18) from the threaded portion of the
adjustment housing (11).
c. Unscrew the plug (19) and remove the O Ring (20). Tap the compensator cap (26) on a wooden block
and drop out the tension washer (21), sleeve (23) and spool (25). Remove the O Ring (24).
d. Remove screws (7) to separate the control cylinder (6) from the cap (26). Remove O Rings (8 and 9).
e. Unscrew the maximum volume control (28) from compensator cap (26).
f. Unscrew nut (29) and remove handwheel (30), key (31), washer (32) and lever (33).
g. Remove the adjusting screw (34). Unscrew the stop (36) and remove the guide (35). Remove the O
Ring (27) from the compensator cap (26).
4-11
