CHAPTER 5: MAINTENANCE OF ENGINE COOLING SYSTEM
TM 9-2350-256-20
5— 7 REPLACE/REPAIR ENGINE OIL COOLER LINES-Continued
c.
INSPECTION
1
Replace two elbows (8) if cracked or broken, threads stripped, or otherwise damaged.
2
Remove slight burrs or raised metal from sealing surface with a fine-tooth file, and polish with crocus cloth dipped in
dry-cleaning solvent.
3
Replace two engine oil cooler lines (1 and 4) if woven shielding is broken or abraded, union nuts (2 and 7) are
cracked, or threads are stripped or damaged.
d.
INSTALLATION
1
Install two elbows (8) each with new gasket (10) and three new self-locking nuts (9).
2
Install engine oil cooler outlet line (4) by tightening union nut (7) at each end.
3
Install loop clamp (3) to engine oil cooler outlet line (4) with nut (5) and screw (6).
4
Install engine oil cooler inlet line (1) by tightening union nut (2) at each end.
NOTE
• Ensure oil drain valve is tightened to allow for proper system oil flow.
• Follow-on maintenance:
• Fill oil (see paragraph 3-6)
• Install powerplant (see paragraph 3-1)
5—
14
