TM 9-2330-356-14
Figure 4-87. Wheel Bearing Installation (M967, M969, and M970 except M970 SN TC-0843, TC-0844, and TC-103
thru TC-178).
(7) Install hub cap and secure with ten capscrews
(2) Install outer bearing cone by inserting into
bearing cup. Install inner wheel bearing nut against outer
bearing. Provide for sufficient clearance between brake
shoe and drum so brake drag will not interfere with
(8) Pressurize air system by attaching towing
bearing adjustment.
vehicle air lines to semitrailer and starting towing vehicle
engine.
(3) Jack wheel completely off ground.
(4) Tighten inner wheel bearing adjusting nut to
200 lb.-ft. while rotating hub and drum assembly in both
(10) Manually release fail-safe chamber power
directions.
(5) Back off inner wheel bearing adjusting nut
(11) Remove any blocking from tires.
approximately (2 flats) to 1/3 (22/3 flats) turn so dowel on
nut will aline with hole in lock ring (fig. 4-86) when tab on
e. Removal of Tires, Wheels, Hub, and Drum as an
lock ring is positioned on axle spindle keyway. Install and
Assembly (M967A1, M969A1, and M970A1 including M970
tighten outer wheel bearing jam nut to 250-300 lb.-ft.
SN TC-0843, TC-0844, and TC-103 thru TC-178) (Fig 4-88).
(1) Block any of the tires that are not being
(6) Apply light coat of grease (item 17, Appendix
removed.
E) to
new hub cap
gasket and position gasket on
hub.
Change 3