TM 5-3895-373-34
2.33
REPLACE/REPAIR SPEED REDUCTION GEARBOX - Continued.
E.
ASSEMBLE - Continued.
3.
ASSEMBLE BRAKE COMPONENTS.
a.
Install one thrust bearing (26), followed by one
steel disc brake (36), then one sintered disc
brake shoe (37) in brake housing (23). Repeat
installation of steel disc brake, then sintered disc
brake shoe until all disc brakes and shoes are
installed. Each sintered disc brake shoe must be
installed between two steel disc brakes.
O-rings,
seals,
ring
spacer,
and
cylindrical piston must be well lubricated
with petrolatum. Inadequate lubrication
may cause damage to o-ring or seal
during installation of ring spacer or
cylindrical piston.
NOTE
Refer to sectional view for proper
positioning of seals and o-rings.
O-rings may have to be stretched slightly
to fit tightly against outer diameter of
mating grooves.
NOTE
Plain seal (35) may not be used in all
applications.
b.
Lubricate o-rings (32 and 34) and plain seals (33
and 35) with petrolatum.
c.
Turn concave side of plain seal (35) up. Install
seal, concave side up, in bottom of lower
packing groove inside brake housing (23).
d.
Install o-ring (34) directly above installed plain
seal (35). Coat exposed surfaces of installed o-
ring and seal with petrolatum.
e.
Turn part number side of ring spacer (28) down.
Install plain seal (33), concave side up, in bottom
of packing groove in ring spacer.
SECTIONAL VIEW
f.
Install o-ring (32) directly above installed plain
seal 33). Coat exposed surfaces of installed o-
ring and seal with petrolatum.
g.
With part number side down, insert ring spacer
(28) in brake housing (23). Press ring spacer
squarely down until seated. Be careful not to
extrude o-ring (34) or plain seal (35).
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