P r e v e n t i v e M a i n t e n a n c e C h e c k s and Services for M60A1 AVLB Hull-
Not Fully Mission
Any nuts missing
Check that final drive hub mounting
nuts are tight. Do not tighten loose
Left and Right
mounting nuts, replace them.
Check that mounting holes are not
are out of round.
egg-shaped (out of round). Shiny
areas next to mounting nuts indicate
out of round holes.
Use a 0-600 lb-ft torque wrench to
tighten replacement nuts to 450-470
lb-ft (610-637 N·m).
Any class III
Visually check final drive output
seal for leaks by inspecting lower
part of inboard side of drive sprocket
for evidence of oil. If oil is present,
notify support maintenance final
drive seal is defective.
C h a n g e 4 3-39