TM-9-2320-272-24-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4

JUNE 1998

TM-9-2320-272-24-2 - Page 810 of 991

TM 9-2320-272-24-2

4-14. CRANKSHAFT VIBRATION AND DAMPER REPLACEMENT (Contd)

c. Inspection

Inspect vibration damper (1) to ensure mark (3) on hub (4) aligns with mark (2) on member (5). If

alignment marks (2) and (3) are not within 0.062 in. (1.59 mm), replace vibration damper (1).

d. Installation

Install vibration damper (1) on crankshaft flange (8) with six new lockwashers (7) and screws (6).

Tighten screws (6) 55-60 lb-ft (75-81 N•m).

FOLLOW-ON TASKS:

•

Install alternator belts (para. 3-78).

l

Install radiator fan blade (para. 3-72).

l

Install radiator fan shroud (para. 3-63).

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