TM 5-3895-373-34
2.76
REPAIR SCREED VIBRATION MOTOR - Continued
D.
ASSEMBLE - Continued.
2.
INSTALL NEEDLE BEARING AND CHECK
VALVE INTO MOTOR COVER.
a.
Use a hydraulic press and spacer from universal
puller kit and install needle bearing (31) into
motor cover (6). Use micrometer depth gage
and ensure that the clearance between the top
of the bearing and the motor body mating
surface of the motor cover is between 0.058 to
0.078 in. (1, 5 to 2, 0 mm). This is to ensure
that the bearing does not contact the retaining
ring.
b.
Use a hydraulic press and the valve seat
installation tool and press check valve seats’ (30)
into motor cover (6).
Hydraulic
oil
can
be
moderately
flammable and can be an irritant to
the
skin,
eyes,
and
respiratory
system. Avoid prolonged exposure.
Eye protection and rubber gloves
must be worn m. when working with
hydraulic oil.
Be careful not to damage preformed
packing when sliding over threads.
Sharp edges of thread can cut or
damage
preformed
packing.
Damaged
preformed
packing
will
cause
leakage
and
affect
performance.
c.
Lubricate preformed packings (29) with clean
hydraulic oil and install onto hex socket plugs
(26). Ensure that the packing is not damaged by
the threads of the plug.
d.
Install balls (28), springs (27), and hex socket
plugs (26) into motor cover (6).
e.
Install identification plate (25) and machine
screws (24) into motor cover (6).
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