TM 9-2320-289-20
3-6.
ENGINE OIL COOLER SUPPLY AND RETURN PIPES AND HOSES
REPLACEMENT.
This task covers:
a. Removal
c.
Installation
b. Inspection
INITIAL SETUP:
Equipment Condition
Materials/Parts
Fan shroud removed. (See paragraph 3-31)
One Iockwasher
1.
2.
3.
4.
5.
6.
NOTE
All connection points have seals (9). DO NOT lose these seals. If not
damaged, they can
and 15) and hoses
If
If
4
removing engine
removing engine
through 6.
be reused for installation of replacement pipes (14
(2 and 11).
oil cooler pipes (14 and 15), perform steps 1-3.
oil cooler hoses (2 and 11), perform steps 2 and
Disconnect engine oil cooler pipes (14 and 15) from
NOTE
Some trucks have an engine oil sampling
right side of radiator (1).
valve (13) which taps into
engine oil cooler system at connection between hose (2) and pipe (14).
Tag pipes (14 and 15) and hoses (2 and 11) for installation.
Disconnect engine oil cooler pipes (14 and 15) from engine oil cooler hoses (2 and 11) at left
side of radiator (1). If present, disconnect engine oil sampling valve (13) at square connector
(16).
Remove engine oil cooler pipes (14 and 15).
Disconnect engine oil cooler hoses (2 and 11) at connectors (4).
At engine block, remove bolt (8), insulation washer
bracket (5). Discard Iockwasher.
NOTE
(6), Iockwasher (7), and clip (10) from
On trucks with winterization kits, engine oil cooler hoses (2 and 11) run
under engine coolant heater. To remove hoses, pull them out from under
this heater.
Remove nut (3), hose clamp (12), and engine oil cooler hoses (2 and 11).
3-8