TM 5-5420-226-20-1
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 a n d S e r v i c e s f o r M 4 8 A 5 A V L B H u l l -
Item
No.
31
Interval
Semiannual
Location
Item to
Check/Service
Drive Sprockets
(Left and Right
Sides)
C o n t i n u ed
Procedure
Move vehicle as needed to perform
sprocket checks.
Visually check that nuts for both in-
side and outside sprockets have not
backed off mounting bolts. (Each bolt
should stick out of nut about same
distance.)
Do not tighten loose nuts and bolts,
replace them. When replacing nuts
and bolts, also replace tapered bush-
ings. Lightly lubricate replacement
bolts and thread into hub through
bushings into sprocket. Tighten bolts
to 140-190 lb-ft (190-257 N•m). Tight-
en replacement nuts to 115-165 lb-ft
(156-224 N-m).
Not Fully Mission
Capable if:
Any nuts are
missing or loose.
3-38
Change 6
