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1
TM 5-4320-304-14
TM 08922A-14/1
6-8. REPAIR/REPLACE CRANKCASE (Continued)
CLEANING/lNSPECTION:
2
3
Death or serious injury could occur if fuel is not handled
carefully. Use in a well-ventilated area away from open
flame, arcing equipment, ignition sources, heaters, or exces-
sive heat. Always store fuel in proper, marked containers.
DO NOT SMOKE.
Death or serious injury could occur if compressed air is
directed against the skin. Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced
to 30 psi (2.06 bar) or less. When working with com-
pressed air, always use chip guards, eye protection, and
other personal protective equipment.
Live steam used for cleaning shall not exceed 100 psi
(6.9 bar). Use goggles or face shield for eye protection. Do
not direct live steam against skin.
Clean crankcase thoroughly with live steam. Clean all exterior openings and surfaces. Be
especially sure to clean all oil passages to make sure they are clear. Use a small and/or large wire
bristle brush where necessary to remove carbon or other deposits from openings and surfaces.
Use diesel fuel as necessary to soften and remove carbon or hardened oil deposits. Dry with
compressed air.
Inspect crankcase for any cracks, discoloration, distortion, rust, corrosion, or other damage. Use
MlL-l-6868 magnetic particle inspection to detect cracks. If crankcase is cracked, distorted, over-
heated, seriously rusted or corroded on machined surfaces, or exhibits other serious damage,
replace crankcase.
Inspect two studs (9), two studs (10), and two studs (11) for thread damage. If damaged, replace
studs.
REPAIR/ASSEMBLY:
1
Lubricate joint (8) with lubricating oil and install on oil drain plug (7). Install oil drain plug.
2
Install cylinder pin (6).
3
If damaged, remove two studs (10) and two studs (11) and install new studs.
4
If damaged, remove two studs (9) and install new studs.
5
Lubricate preformed packing (5) with lubricating oil and install on cap screw (4). Install cap screw.
6
Lubricate preformed packing (3) with lubricating oil and install on oil dipstick (1). Install oil
dipstick into crankcase (2).
6-27/(6-28 blank)
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