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
Check sprocket teeth for wear by
looking at undercut on sprocket (un-
Left and Right
dercut is located on two teeth).
Sprocket teeth are excessively worn
if wear has reached bottom of under-
If sprocket is not equipped with un-
dercut indicators, use wear gage
measure wear on driving side of
sprocket teeth. If sprockets have
been reversed, use side "B" of gage.
If not, use side "B" of gage. Place
wear gage over two mounting bolts
and check for wear. Sprocket teeth
are excessively worn if wear has
reached bottom of any notch on
Sprocket teeth are
If sprocket teeth are excessively
worn, reverse or replace sprocket
on both sides.