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 TM 55-1905-242-14
0171 00
ASSEMBLY (continued)
g.
Install the gerotor housing (42) over the gerotor (45) and onto the front bearing housing (39). Ensure that the front
bearing housing O-ring (41) is located properly, and not pinched when the gerotor housing is firmly seated.
h.
Install the O-ring (43) into the motor body (40).
i.
Apply a generous coating of hydraulic fluid to the gerotor (45) and position into the motor body (40) over the shaft
(28). Ensure that the O-ring (43) is located properly and not pinched when the motor body is firmly seated.
j.
Secure the front bearing housing (39), gerotor housing (42), and motor body (40) with the six screws (37) and
lockwashers (38). Torque the screws to 42 lb-ft (57 Nm).
k.
Install the shaft dirt seal (31), high pressure shaft seal (32), and O-ring (33) into the mounting flange (30). Coat the
sealing surfaces with clean hydraulic fluid.
l.
Position the mounting flange (30) onto the front bearing housing (39) and secure it with the four screws (29). Torque
the screws to 8 lb-ft (11 Nm).
m. Install the shaft drive key (27) in the shaft (28) keyway.
n.
Install the two check valve poppets (53), springs (52), check valve plugs (51), and external drain plug (54) into the
motor body (40).
o.
Place the O-ring (48) over the end plug (47) and install the end plug into the motor body (40).
2.
To assemble the bilge pump:
a.
Lubricate the seal seat (21a) and cup assembly with clean hydraulic fluid. Press the seal seat into the pump adapter
(a) counterbore, seating it firmly and squarely. Install the seal cup into the seal seat.
b.
Install the impeller (19) and Woodruff key (23) onto the shaft sleeve (20) and secure with the impeller locknut (22).
c.
Press the seal bellows, washer, and seal assembly (21b) onto the shaft sleeve (20).
d.
Slide the impeller (19)/shaft sleeve (20)/seal assembly (21) into the pump adapter (9).
e.
Install the drain plug (5) and gasket (13) on the housing (6) and install the housing and gasket onto
the pump adapter (9). Secure the housing to the pump adapter with the studs (14), lockwashers (12), and
six nuts (11).
f.
If removed, assemble the bearings (26) and snap rings (24) onto the shaft (25).
g.
Install the shaft assembly (25, 26, and 24) into the shaft sleeve (20).
h.
Install the shaft clamp (18), bolts (15), lockwashers (17), and nuts (16). Loosely tighten the bolts and nuts.
i.
Rotate the shaft (25) slowly by hand to make sure that the impeller (19) does not rub or hit the housing (6). If the
impeller rubs or hits, pry the impeller back and rotate the shaft again. If the impeller does not rub or hit, finish
tightening the bolts (15) and nuts (16).
j.
Position the pump adapter (9) onto the pedestal (10) and secure it with the four capscrews (7) and lockwashers (8).
0171 00-5
0171 00-5
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