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TM 5-2420-222-34
3-20. ENGINE OIL PAN REPLACEMENT (Con’t).
a.
REMOVAL
1.
Remove two screws (3) and lockwashers (4) from oil pan (22) and frame assembly front support (2). Discard
lockwashers.
2.
Remove two screws (14) and lockwashers (15) from oil pan (22), flywheel housing (26), and reverser housing (1).
Discard lockwashers.
WARNING
Use extreme caution when handling heavy parts. Lifting device is required when
parts weigh over 50 lb (23 kg) for a single person lift, over 100 lb (45 kg) for a two
person lift, and over 150 lb (68 kg) for a three or more person lift. Keep clear of
heavy parts supported only by lifting device. Failure to follow this warning may
cause serious Injury or death to personnel.
3.
Using hydraulic jack, support oil pan (22) in place on engine block (25) and timing gear cover (24).
NOTE
Screws securing oil pan have different lengths and hardness. Note location of
screws during removal to ensure proper placement during Installation.
4.
Remove six screws (9) and lockwashers (5) from oil pan (22) and timing gear cover (24). Discard lockwashers.
5.
Remove 22 screws (6, 10, 11, 16,17, 18, 20, and 21) and lockwashers (5 and 19) from oil pan (22) and engine
block (25). Discard lockwashers.
6.
Tap oil pan (22) with hammer to unseat. With the aid of an assistant and hydraulic jack, lower oil pan and gasket
(23) from engine block (25) and timing gear cover (24). Discard gasket.
7.
Pry spacers (7 and 8) from oil pan (22). Note quantity and location of spacers to ensure proper installation.
8.
Remove plug (13) and spring tension washer (12) from oil pan (22).
b.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective
goggles and gloves, and use only In a well-ventilated area. Avoid contact with
skin, eyes, and clothes, and DO NOT breathe vapors. DO NOT use near open flame
or excessive heat. The solvent's flash point is 100°F-138°F (38°C-59°C). If you
become dizzy while using cleaning solvent, immediately get fresh air and medical
help. If solvent contacts eyes, Immediately wash your eyes and get medical aid.
1.
Clean oil pan and plug with dry cleaning solvent and clean rags. Dry thoroughly with clean, dry rags.
2.
Inspect oil pan for cracks, breaks, and abnormal bends. Replace if defective.
3.
Inspect oil pan and plug for damaged threads. Restore damaged threads using screw threading set.
c.
INSTALLATION
1.
Install spring tension washer (12) and plug (13) in oil pan (22).
3-116
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