INSPECT ONE-PIECE ENGINE DRIVE SHAFT (REMOVED)
Inspect adapters (7 and 8) for cracks, nicks,
scratches, or gouges. Use a 3X to 5X power
magnifying glass for inspection. Replace any
cracked adapter assemblies. Remove any nicks,
scratches, or gouges by polishing (Task 6-31.2).
Do not loosen or remove more
than one bolt from the adapters at
the same time during inspection.
Adapters are balanced assemblies
and requires replacement if more than
one bolt is loosened or removed.
Inspect adapter plates and attaching hardware
for damage listed below:
Cracks nicks or gouges in visually accessible
areas of plates (9). Use a 3X to 5X power
magnifying glass to check. Give particular
attention to surfaces at exposed bolt holes.
Repair light scuffs, nicks, or scratches (Task
6-31.2). Normal adapter face or washer
contact pattern is permissible. Replace
adapter assemblies with any cracks. Replace
adapter assemblies with scratches, nicks, or
gouges in plates deeper than 0.001 inch. If
cracks are suspected in adapter plate, refer
to TM 1-1520-253-23.
Nicks on inside edges of plates (9). Use a
pointed scribe to check. Replace nicked
Cracked nuts (10) and bolts (11). Replace
cracked nuts and bolts.
Thread damage, fretting, gouges, wear steps,
and circumferential scoring on shaft attaching
bolts (12). If defects are found, refer to Task
Nicks, gouges, and fretting on bevel washers
(13). If defects are found, refer to Task 6-31.2.