TM 5-3895-356-14&P
17. If cylinder block was completely disassembled,
proceed with the block as follows. Install the inner spring
retainer (54), block spring (41) and outer spring retainer
(42) in cylinder block (40). Place block (40) in an arbor
press and compress block spring (41) Install snap ring
(43) Gradually release the spring (41) until It seats
against snap ring (43).
18. Spread a thin film of oil over the inner surface of the
nine piston bores Stand the pistons (55) in an erect
position and carefully lower the block assembly (40) over
them being sure to return the used pistons to their
respective bores Do not force the block over the pistons.
A slight rotary motion of the block assembly will aid in
Figure 217.
positioning the pistons in the cylinder bores See Fig.
Installing pistons & return plate
19. Install O-ring (56) on adapter (2) Lower housing (3)
over rotating group onto adapter (2) being careful not to
disturb assembled parts See Fig 220. Secure housing to
adapter with hex bolts (36) and lock washers (37).
Figure 218.
Installing return plate clips
Figure 220.
Installing housing
a. On variable motors, lower the cam assembly (B) and
rotating group (C) 'over motor shaft (S).
b. Install O-ring (Z) on adapter (F) and lower housing (Y)
over assembled parts Secure housing (Y) to adapter (F)
with hex bolts (D) and lock washers (E) and torque to
450 in. lbs
Figure 219.
c. Inspect trunnions (T) for galling or scratches.
Installing block assembly
Small nicks or burrs may be removed with 500 grit emery
cloth. Trunnions with large scratches or irregularities
that can be felt with the fingernail should be discarded
d. Assemble new trunnion thrust bearings (U) and
gaskets (V) on trunnions (T) Using a large.
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