TM 5-3895-346-14
HYDROSTATIC SYSTEM
PUMP REPAIR
Minor Repairs
Special Tools (refer to Fig. 2).
The following tools are required but not normally carried:
1. Truarc #7 Retaining Ring Pliers
2. Drag Link Socket
Figure 2.
Figure 4.
It is recommended that all shaft seal parts be replaced. If parts are to be reused, they must be protected from
being damaged by the shaft during removal.
Remove the large retaining ring located on the shaft end of the pump. Remove the side opposite the tangs
from the groove first (refer to Fig. 3).
The aluminum housing is removed next. It is held in place by the friction of the O-ring on its O.D. Pry the
housing toward the end of the shaft until the O-ring is free (refer to Fig. 4).
Remove the housing from the shaft. This part is actually an assembly that is being held together by the friction
of an internal O-ring. It will normally remain assembled until physically separated (refer to Fig. 5).
The bronze sealing ring is also held in place by internal O-ring friction. Work this part free and carefully slide
over the shaft (refer to Fig. 6).
Figure 3.
Figure 5.
530