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TM 5-4320-313-14
6-6. CRANKSHAFT - Continued.
b. Cleaning.
WARNING
Do not breathe cleaning solvent P-D-680 vapors for long periods of time or use solvent near open
flames. To avoid illness, explosion, or fire, only use solvent in well-ventilated areas away from open
flames.
(1) Clean all parts with a rag and cleaning solvent.
(2) Clean all oil passages on crankshaft.
(3) Allow to dry.
c. Inspection.
(1) Inspect crankshaft for nicks or scratches on bearing journals.
(2) Inspect all bearings inner and outer races for pitting or signs of wear.
d. Installation. (Refer to figure 6-13).
(1) Install plug (16) into crankshaft (7).
(2) Position counterweight (15) on crankshaft and secure with two screws (14). Torque screws to 16.23 ft-lbs
(22 Nm).
WARNING
Wear asbestos gloves to avoid serious burns when handling heated parts.
(3) Using an oven, heat the inner races of roller bearings (13 and 12) to 1600 to 1750F (700 to 800C) and
press them onto crankshaft (7).
(4) Install circlip (10) into crankcase. Insert bearing outer race (11) in crankcase from the flywheel side and
press it into crankcase until it comes to a stop against circlip (10).
(5) Press bearing outer race (8) onto crankshaft.
(6) Install mounting device to control crankshaft end play, on crankshaft (7).
WARNING
Wear asbestos gloves to avoid serious burns when handling heated parts.
6-22
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