TM 5-3895-373-34
2.42
REPLACE/REPAIR AUXILIARY PUMP - Continued.
E.
ASSEMBLE - Continued.
2.
INSTALL DIAPHRAGM SEAL, PROTECTOR
GASKET, BACKUP GASKET, DIAPHRAGM, DOWEL
PINS, AND REAR PUMP BODY.
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 when working with
hydraulic oil.
a.
Lubricate
diaphragm
seal
(42)
with
clean
hydraulic oil.
b.
Install diaphragm seal (42), with open part of "V"
section facing adapter plate assembly (22).
c.
Use a dull tool to seat diaphragm seal (42) in
adapter plate assembly (22). Ensure diaphragm
seal is fully seated before proceeding.
d.
Install protector gasket (41) and backup gasket
(40).
NOTE
Entire diaphragm must fit inside the
raised rim of diaphragm seal.
e.
Install diaphragm (39) bronze face out.
NOTE
Shortest dowel pins (24) are used in
thickest pump body (20).
f.
Use drift punch and hammer to install dowel pins
(24) in rear pump body (20). Non-tapered ends
of dowel pins should protrude about 1/4 in. (6
mm) above backplate side of pump body.
g.
Align matchmarks and install rear pump body
(20) on adapter plate assembly (22) to hold
diaphragm (39) in place.
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