TM 5-3895-346-14
HYDROSTATIC SYSTEM
PUMP REPAIR
Remove thrust plate from its counter bore in the face of the swashplate. Reach through the center hole in
swashplate and push against exposed edge of thrust plate. Do not allow part to fall and become damaged
(refer to Fig. 19).
Figure 19.
Figure 20.
Thrust plate (refer to Fig. 20).
The tapered bearing can be pressed off the shaft if required. Be careful not to damage the seal diameter of the
shaft while removing the bearing (refer to Fig. 21).
Figure 21.
Figure 22.
From this point on it is necessary to mark all parts so that neutral (zero swashplate angle) will be retained when
the parts are reassembled. The swashplate is held in neutral by springs inside the servo housings. These
springs are adjusted by turning the servo housings (refer to Fig. 22).
First, mark the servo housing for location to the pump housing. This set of marks should line up to show the
rotational position of the servo housing to the pump housing (refer to Fig. 23).
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