TM 9-2320-260-34-1
3-6. CRANKSHAFT FLANGE MAINTENANCE (Contd)
WARNING
Ensure fuel shutoff valve and ignition switch are OFF before
cranking engine. Failure to do so may result in injury to personnel.
1. Check crankshaft flange (2) for runout:
a. Position dial indicator with holding fixture on engine (1).
b. Position dial indicator plunger on hub of crankshaft flange (2) and zero dial indicator.
Using engine barring tool, rotate engine (1) and take reading. Replace crankshaft flange (2) if
c.
reading is more than 0.004 in. (0.10 mm). Crankshaft may be damaged.
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