TM 9-2320-272-24-4
5-29. CRANKSHAFT AND GEAR MAINTENANCE (Contd)
d. Cleaning and Inspection
WARNING
Drycleaning solvent is flammable and toxic. Do not use near
open flame and always have a fire extinguisher nearby when
solvents are used. Use only in well-ventilated places, wear
protective clothing, and dispose of cleaning rags in approved
container. Failure to do this may result in injury or death to
personnel and/or damage to equipment.
Eyeshields must be worn when cleaning with compressed air.
Compressed air source will not exceed 30 psi (207 kPa). Failure
to do so may result in injury to personnel.
Clean all parts with drycleaning solvent and dry with compressed air. Use nylon brush to clean all
1.
oil passages.
Inspect crankshaft (1) for cracks, gouges, pits, burrs, nicks, and scratches. Remove minor damage
2.
with fine mill file or crocus cloth. If excessively cracked, gouged, pitted, burred, nicked, or scratched,
replace crankshaft (1).
Inspect crankshaft gear (3) for cracks, breaks, and damaged teeth. If cracked, broken, or teeth are
3.
damaged, replace crankshaft gear (3).
Inspect connecting rod journals (9) and main bearing journals (8) for scratches, grooves, excessive
4.
wear, and discoloring caused by overheating. Replace crankshaft (1) if scratched, grooved, worn, or
discolored.
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