3-15. WHEELS AND TIRES
a. General. Tires are checked for cuts, gouges, cracks, penetrating objects, and flats
before operation. Proper air pressure is checked weekly. Tires found to be flat must be
replaced. Stop vehicle immediately, if tactical situation permits, whenever a tire becomes
flat while operating.
Two crewmembers required for spare tire removal and replace-
ment procedures on all vehicles except M821, which requires one.
b. Spare Wheel Removal and Replacement (M815, M817, M818, M820, M820A1,
Support spare wheel clamp assembly (2) to prevent from falling
during removal and replacement procedures.
(a) Remove nut (3) and hook bolt (4).
(b) Lower clamp assembly (2) and remove spare wheel (1) from spare wheel
Place spare wheel with split ring away from cab of truck. If tire
should fail, split ring may enter cab, causing personnel injury.
(a) Lift spare wheel (1) onto carrier (5).
(b) Position spare wheel clamp assembly (2) on carrier (5).
(c) Hook bolt (4) to carrier (5) and position through hole in clamp assembly (2).
Secure with nut (3).
c. Spare Wheel Removal and Replacement (M814).
(a) Remove two nuts (9) and ( 10), two washers (8) and (11), and spring (12) from
tire bolts (7).