TM 5-3810-295-34
1 Screw
9 Screw
17 Plunger
25 Shaft
2 Screw
10 Screw
18 Washer
26 Dowel
3 Screw
11 Screw
1 Spacer
27 Bushing
4 Lock e
12 Screw
20 Gasket
27.Cover
5 Screw
13 Lockplate
21 Shaft
29 Bushing
6 Cover plate
14 Cap
22 Gear
30 Bushing
7 Screw
15 Lockplate
23 Gear
31 Dowel
8 Screw
16 Spring
24 Gear
32 Body
Figure 14-31. Lubricating oil pump exploded view.
(6) If required per paragraph 14-29, remove dowel
f Inspect drive shaft (21). Replace if rough or
(26) and bushing (27) from cover (28
outside diameter is worn smaller than 0.874 inch.
(7) If required per paragraph 14-29, remove bush-
g Inspect idler shaft (25). Replace if rough or
ing (29) from gear (24). Remove bushing (30) and dowel
outside diameter is worn smaller than 0.875 inch.
(31) from body (32) if they exceed wear limits. (See
h. Measure bushings (27 and 30) in body and
paragraph 14-29.)
cover. If inside diameter is larger than 0.8787 inch
14-29. Cleaning, Inspection and Repair
replace bushing.
a. Clean all metal parts with cleaning solvent,
14-30. Assembly and Installation
Federal Standard P-D-680, or equivalent before in-
a. Refer to figure 14-31. Assemble oil pump as
specting. Dry with compressed air.
follows:
b. Replace gasket (20), fig. 14-31).
(1) Install dowel (31) into body (32) if removed.
c Inspect all pump gears. Replace if teeth are chip-
(2) Press new bushing (30) flush to 0.020 inch
ped, cracked, scored or show excessive wear.
below outside surface of body (32).
d. Inspect gear pockets of body. If finished surfaces
(3) If required, press new bushings (29) in gear
are damaged or worn excessively, replace body.
(24) to 0.005-.015 inch below surface from each end
a Measure bushing (29) in idler gear (24). Replace if
of gear.
bushing inside diameter is greater than 0.8785 inch.
14-31
