TM 5-4320-300-14
6-11. CRANKSHAFT AND FLYWHEEL (CONT))
Location/Item
Action
Remarks
23. Bearing journal
Visually inspect for cracks which start at an
critical areas
oil hole and follow the journal surface at an
angle of 45 degrees to the axis. Inspect for
cracks in critical fillet areas as shown. Re-
place crankshaft if cracks are visible. Inspect
for minute cracks using MIL-1-6868 Magnetic
Particle Inspection.
24. Intermediate
Check alignment at adjacent intermediate main
main bearing
journals with a dial indicator. Maximum allowable
journals
runout is 0.002 inch (0.0508 mm). Replace crank-
shaft, if necessary.
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