TM 5-6115-400-35
1
Gasket assembly
12
Clip
23
Nut
2
Level gage
13
Liner
24
Retaining ring
3
Pan
14
Element assembly
26
Nut
4
Adapter
15
Pan
26
Sleeve
5
Washer
16
Washer
27
Connector
6
Lockwasher
17
Lockwasher
28
Capscrew
7
Screw
18
Screw
29
Nut
8
Gasket
19
Screw
30
Chain
9
Screw
20
Washer
31
Screw
10
Lockwasher
21
Gasket
11
Washer
22
Sleeve
Figure 75-Continued.
not serviced separately. The pump driving gear is
d. Installation.
keyed and pressed onto the upper shaft and is retained
(1) Cement new gaskets to front and side
by a roll pin.
rails of pans.
b. Removal.
(2) For ease of installing the upper pan, make
(1) Drain the engine oil. Refer to TM 5-6115-
guide studs and screw them into the side
400-12.
rails of the cylinder block. Also have
(2) Remove the oil pan (para 50).
available a greased sheet of shim stock
(3) Remove the pump suction tube (12, fig.
larger than the rear area of the pan. The
greased sheet of shim stock is to be
placed against the preformed packing, in
(4) Remove the oil pump discharge tube (25)
the lower half of the flywheel housing, to
and oil pressure relief valve (3) as an
protect the seal from being damaged
assembly.
when the pan is installed.
(5) Remove the oil pump from the front main
(3) Mount the pan on the guide studs, Hold
bearing.
the pan in position by inserting a
c. Disassembly and Inspection.
capscrew and lockwasher near each
(1) Wash the pump assembly.
corner, but do not tighten to the extent
(2) Remove the roll pin securing the pump
that the pan cannot be shifted. Carefully
driving gear to the upper shaft.
ease out the greased sheet of shim stock
(3) Pull the driving gear (15, fig. 77) from the
protecting the preformed packing in the
shaft with a gear puller.
flywheel housing.
Remove the key from the shaft and clean
(4) Remove the guide studs.
Install the
any burrs from the shaft with a stone or
capscrews and lockwashers which hold
file.
the rear flange of the oil pan to the
(4) Remove the locking wires, capscrews,
flywheel housing and tighten the rear
and lockwashers securing the cover
corner capscrews and the two upper
assembly (3) to the pump housing. Tap
capscrews in the flywheel housing
the cover lightly to loosen it from the
alternately until secure.
dowel pins and remove the cover and
(5) Install the balance of the capscrews in the
gasket.
oil pan and tighten all capscrews securely
(5) Inspect the pump gear teeth, the inside of
to a torque of 45-50 ft. lbs.
the pump body, and the inner face of the
(6) Install lower oil pan.
cover for wear or scoring. The gear teeth,
the inside of the pump body, and the inner
51. Oil Pump
face of the cover must be smooth, having
no scratches, score marks, or rough
onto their respective shafts and are
spots.
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