TM 5-4930-244-14
b. Cleaning.
WARNING
· Dry cleaning solvent is flammable. Do not use near open flame or non-
ventilated places Keep away from open flames or sparks. Avoid inhaling
solvent fumes. Avoid contact with skin. Flash point of solvent is 100° F to
138° F (38° C to 59° C)
· Compressed air used for cleaning purposes will not exceed 30 psi. Use only
with
effective
chip-guarding
and
personal
protective
equipment
(goggles/faceshield, gloves, etc.).
(1)
Thoroughly clean crankshaft (20) bearing journals, crankpins, oil holes and strictures to remove debris that might
restrict oil flow or affect installation. Use dry cleaning solvent or compressed air.
(2)
Thoroughly clean and dry all bearing surfaces, oil holes, and casings Use dry cleaning solvent and compressed
air.
(3)
Thoroughly clean housing (26) and attaching hardware for ease of inspection and installation. Use dry cleaning
solvent and compressed air.
(4)
Unless otherwise specified, thoroughly dry all components using clean, dry rags or compressed air.
c. Inspection.
(1)
Inspect journals of crankshaft (20) for score marks, elongation, wear, and other defects If any or all of above
defects are found, replace crankshaft (20).
(2)
Inspect all bearing surfaces for cracks, scrapes, filing marks, scores, sear, or other damage. Replace any
defective or unserviceable parts.
(3)
Inspect flywheel (17) for damaged, cracked, or broken teeth, or other damage. If damaged, replace flywheel
(17).
(4)
Inspect fan (23) for damage. If damaged, replace it.
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