TM-9-2320-280-20-2

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 2 OF 3

JANUARY 1996
TM-9-2320-280-20-2

  TM-9-2320-280-20-2 - Page 30 of 951

3-7. ENGINE OIL COOLER SUPPLY AND RETURN LINES MAINTENANCE
This task covers:
a. Supply Line Removal
c. Supply Line Installation
b. Inspection
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Tiedown strap (Appendix G, Item 306)
Lockwasher (Appendix G, Item 133)
Locknut (Appendix G, Item 72)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Engine left splash shield removed
(para. 10-17).
• Engine access cover removed (para. 10-15).
General Safety Instructions
Do not drain oil when engine is hot.
TM 9-2320-280-20-2
3-10
Change 3
WARNING
Do not drain oil when engine is hot. Severe injury to personnel
will result.
CAUTION
Cover or plug all hoses and connections immediately after
disconnection to prevent contamination. Remove all plugs prior to
connection.
NOTE
• Engine oil cooler supply and return lines are replaced basically
the same. This procedure covers supply line replacement.
• Have drainage container ready to catch oil.
• Left
splash shield can be modified to add engine access cover.
Refer to appendix D, Figs. D-86 and D-87 for installation.
1.
Disconnect supply line connector (5) from adapter (4) and allow oil to drain.
2.
Disconnect supply line connector (16) from oil cooler port (17).
3.
Remove locknut (3), washer (2), capscrew (15), and washer (2) from supply line clamp (14), brake
line clamp (1), and frame bracket (13). Discard locknut (3).
4.
Remove capscrew (7), lockwasher (8), and clamp (9) from supply line (12) and engine mount bracket
(10). Discard lockwasher (8).
5.
Remove tiedown strap (11) from supply line (12) and return line (6). Discard tiedown strap (11).
Inspect adapter (4) for damaged threads or cracks. Replace if defective.
1.
Position supply line (12) in approximate mounting location along frame.
2.
Install supply line clamp (14) and brake line clamp (1) on frame bracket (13) with washer (2),
capscrew (15), washer (2), and locknut (3). Tighten locknut (3) to 6 lb-ft (8 N
•
m).
3.
Connect supply line connector (16) to oil cooler port (17).
c. Installation
b. Inspection
a. Removal


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