TM 5-3895-372-34
p. Remove assembly from vise. If end of coupling shaft (14) is 1-1/4" diameter, do the following to install high
pressure seal (7).
(1)
Set assembled motor, coupling shaft (14) facing upward, on a clean bench.
(2) Place seal compression ring over coupling shaft (14); push seal protective sleeve onto coupling shaft.
Apply clean GAA to new seal (7) and assemble with lip side inward, onto protective sleeve. Insert seal driver into seal
compression ring and push new seal (7) into housing.
(3) Hold shim (6) between thumb and index finger and slightly collapse shim (6) to facilitate assembly into
housing (8). Assemble shim (6) and back-up washer (5).
(4)
Compare old retaining ring (4) with the two new retaining rings (4). Use the new ring of the same
thickness. Assemble the retaining ring (4); be sure rounded edge of retaining ring is facing inward.
(5)
Apply a small amount of GAA to the backside of new dirt seal (3) and assemble into housing (8).
3-20.
Checking for Leaks. Pressurize the motor with 1000 psi dry nitrogen. Submerge in solvent to check for external
leaks.
3-12
