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 -
C o n t i n u ed
Item
No.
19
Interval
Semiannual
Location
Item to
Check/Service
Compensating
Idlerwheels,
Roadwheels, Arms
and Hubs (Left
and Right Sides)
- Continued
Procedure
Check for crushed or defective road-
wheel arm inner and outer bearings
at inside of roadwheel as follows:
Using a 3/4 inch socket and socket
wrench, check that socket fits on top
three bolts of roadwheel arm of re-
tainer. If bearings are damaged or
defective, socket will not fit or will
be a very difficult fit.
Looking straight-on at roadwheel
arm, check gap between roadwheel
arm retainer and roadwheel arm
spacer. Gap should be approximately
1/4-in (0.635 cm) equally all the way
around. If gap is smaller at top and
greater at bottom, check for bearing
damage, bearing dislocation, or a
loose bearing assembly retainer nut.
Correct defect. Clean grease from
seal assembly. Clean lubricant pres-
sure relief fitting using a clean, lint-
free, dry cloth.
Not Fully Mission
Capable if:
Socket will not fit
or is very difficult
to fit any top
three bolts.
3-26
Change 6
