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 TM 55-1905-223-24-5
WARNING
A hoist must be used to support and lift the assembly when
removing it from the engine. It must be firmly in place before
removing the mounting screws. This will prevent personal
injury.
f. Attach engine lifting fixture to heat exchanger (6) and support heat
exchanger.
g. Remove hexhead capscrews (1), lockwashers (2), and flat washers (3) that
secure heat exchanger brace (4) to heat exchanger brace (5).
h. Remove hexhead capscrews (40) and flat washers (39) that secure heat
exchanger (6) to engine.
i. Remove heat exchanger (6). Place on the deck or on a suitable workbench.
j. Remove four hexhead capscrews (12) and lockwashers (13). Remove water
outlet connection (14) and gasket (15). Discard gasket.
k. Remove four hexhead capscrews (21, 22) and lockwashers (20, 23). Remove
outlet connection (19) and gasket (16). Discard gasket.
l. Remove four hexhead capscrews (32) and lockwashers (33). Remove water inlet
connection (31) and gasket (34). Discard gasket.
REPAIR
Repair of the heat exchanger consists of replacing gaskets (7, 15, 16 and 34) and hoses (25, 29 and 37).
Complete repair of the heat exchanger is accomplished by Intermediate Direct Support Maintenance Chapter 3.
REPLACEMENT
a. Clean all water connections and gasket mounting-surfaces with solvent. Allow
to dry.
b. Install new gasket (34) and position water outlet connection (31) and secure
with four hexhead capscrews (32) and lockwashers (33). Tighten capscrews to
40 ft-lb torque.
c. Install new gasket (15) and position water outlet connection (14) and secure
with four hexhead capscrews (12) and lockwashers (13). Tighten capscrews to
40 ft-lb torque.
d. Install new gasket (16) and outlet connection (19) and secure with capscrews
(21 and 22) and lockwashers (20, 23). Tighten capscrews to 40 ft-lb torque.
2-138
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