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 TM 5-1940-277-20
TM 1940-20/2
REPAIR:
I.
Using hex key wrench remove six socket head screws (1) securing end covers (2 and 3) to heat exchanger (4).
CAUTION
If particles of rubber are found in heat exchanger, check raw water pump impeller
for damage, (see page 24).
2.
Remove retaining rings (5 and 6), end covers (2 and 3), and O-rings (7).
Discard O-rings.
3.
4.
Coat O-rings (7) with sealant (Item 3, App. C) and assemble O-rings (7), end covers (2 and 3), and retaining rings
(5 and 6) on heat exchanger (4).
Using hex key wrench reinstall six socket head screws (1) securing end covers (2 and 3) to heat exchanger (4).
5.
Reinstall header tank/heat exchanger (refer to paragraph 3-72).
6.
7.
Close battery hatch.
Close engine hatches.
8.
3-155
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