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 TM 9-2815-220-24
OIL COOLER REPLACEMENT, ENGINE AND TRANSMISSION
0072 00
INSPECTION (Continued)
6. Check operation of thermostatic bypass valves.
a. Immerse valve in warm water. Check temperature of water with an accurate thermometer
(item 119, WP 0176). Gradually raise temperature of water to temperature indicated on
valve cover.
(1) Valves marked 148 F must travel 1/4-inch between 90 and 150 F.
(2) Valves marked 185 F must travel 1/4-inch between 110 and 185 F.
(3) Replace valve assembly when travel is less than 1/4 inch.
b. Remove valve from water and clean with cleaning compound solvent (item 8, WP 0173) or
mineral spirits.
7. Check oil cooler hoses.
a. Inspect oil cooler outlet and inlet hoses for breaks in woven shielding. Replace hose if
damage is found.
b. Test hoses at 400 psi. Replace hoses that do not pass pressure test.
8. Check oil cooler screens.
a. Inspect oil cooler screens for cracked or broken mounting brackets. Replace if found.
b. Straighten bent screens to as near original shape as possible.
c. Check for torn or broken screening. Replace screens that are unserviceable.
INSTALLATION
NOTE
Adapter elbows for oil into and out of coolers all look the same.
However, one of the elbows is shorter on engine models 2CA and
2DA; it goes on the left bank cooler and is the lower fitting (oil into
cooler). Engine model 2DR adapter elbows are all the same length.
37
1. Install transmission oil cooler (28)
38
28
thermostatic bypass valve (37).
a. Lubricate and put in place new
23
gasket (38) (item 315, WP 0175).
b. Lubricate threads of thermostat (37) and
install.
2. Install engine oil cooler (23) thermostatic
bypass valve (39).
a. Lubricate and put in place new
40
gasket (40) (item 315, WP 0175).
39
b. Lubricate threads of thermostat (39) and
install.
WP 0072 00-7
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