TM-9-2320-386-24-1-2
2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 2 OF 2
MAY 2001
TM-9-2320-386-24-1-2 - Page 482 of 636
ASSEMBLY
NOTE
Perform steps 1 through 3 if plug and bearing were removed
previously.
1.
Position lettered end of new bearing (4) up on stator hub (5).
2.
Using bearing installer and driver handle, press bearing (4) into stator hub (5) to a depth of 0.595-
0.615 in. (15.11-15.62 mm) from end of stator hub (5).
3.
Install plug (2) in oil passage port (1).
4.
Install lockup valve (15), spring (14), and spring stop (13) in lockup valve bore (12) of front
support (3).
5.
Compress spring stop (13) against spring (14), and install dowel pin (6).
6.
Install main-pressure regulator valve (7), spring (8), spring stop (9), and snapring (10) in regulator
valve bore (11) of front support (3).
7.
Install main-pressure regulator remover/installer on front support (3). Tighten screw of
remover/installer to compress spring stop (9) against spring (8).
8.
Install snapring (10) in regulator valve bore (11), loosen screw of remover/installer, and remove
main-pressure regulator remover/installer from front support (3).
9.
Install new oil seal (17) on seal installer and install oil seal (17) on oil pump (18), with lip facing
inward.
10.
Apply lubricating oil to drive gear (19), drive gear (20), and new seal ring (21).
11.
Install seal ring (21) on oil pump (18).
12.
Install drive gear (19) on oil pump (18), with internal tangs facing upward.
13.
Install drive gear (20) on drive gear (19), with diamond-marked side facing downward.
14.
Position oil pump (18) on front support (3), stator shaft (24), and spur gear (23), align holes, and
install with five screws (22), six washers (25), and screws (16). Tighten screws (22) and (16)
15-20 lb-ft (20-27 N
•
m).
0374 00-8
TM 9-2320-386-24-1-2
0374 00
TRANSMISSION OIL PUMP MAINTENANCE (Contd)
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