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 c. Disassembly.
hearing (7) from the impeller shaft. Remove the
(1) Remove the bolts ((1) fig. 5-13) and lock-
spacer (8) and hearing (9).
washers (2) and remove the cover (3) from the wa-
(4) Remove the bolts (10) and lockwashers
ter pump. Remove the seal (4).
(11). Remove the cover (12) from the body.
(2) Remove the bolt (5) and washer (6).
Remove the seal (13), seal (14), and dowel (15).
(3) Using a suitable puller, remove the
13
Seal
1
Bolt
14
Seal
2
Lockwasher
15
Dowel
3
Cover
16
Bolt
4
Seal
17
Washer
5
Bolt
18
Impeller
6
Washer
19
Spring
7
Bearing
20
Body
8
Spacer
21
Gear
9
Bearing
22
Seal
10
Bolt
23
Key
11
Lockwasher
24
Impeller shaft
12
Cover
reverse order of disassembly. Grease the seals
(5) Remove the bolt (16) and washer (17).
Remove the impeller (18) and spring (19) from the
before installing and use a seal installation tool to
insert the seals. Tighten the impeller bolt (16, fig.
impeller shaft.
(6) Remove the impeller shaft from the body
5-15) to a torque of 27 to 29 foot-pounds.
f. Installation. Reverse removal procedure and
(20).
install the water pump on the engine.
(7) Remove the gear (21), seal (22), and key
(23) from the impeller shaft (24).
5-7. Engine oil Cooler
c. Cleaning. Clean all components except
a. Removal.
bearings in P-D-680 cleaning solvent and dry with
(1) Drain cooling system (TM 5-2410-233-
compressed air. Clean bearings as instructed in
10).
(2) Loosen the water inlet bonnet hose clamps
d. Inspection and Repair.
(1) Check the housings for cracks at the
(3) Remove oil filters (TM 5-2410-233-20).
mounting flanges. Repair or replace as required.
(4) Remove the oil level gauge guide clamp
(2) Inspect the impeller for dents, nicks,
mounting bolt.
cracks, chips and bent or broken splines. Repair or
(5) Remove the oil cooler-to-elbow assembly
replace as necessary.
mounting bolts.
(3) Inspect the bearing for scoring, wear,
(6) Remove the two support bracket
scratches, pitting and other damage. Replace as
mounting bolts and remove the engine oil cooler
required.
and oil filter base as a unit.
(4) Replace all seals and gaskets.
(7) Separate the oil filter base from oil cooler.
e. Reassembly. Assemble the water pump in the
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