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Page Title:
Steering Wheel Hubs and Bearings |
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 TM 10-3930-222-20
68. Steering Wheel Hubs and Bearings
(3) Deflate the tire.
(4) Remove the lockring from the wheel
assembly.
a. Removal.
(5) Using an appropriate tire tool, remove the
(1) Jack the steering wheels off the floor and
tire and tube from the wheel assembly.
block the truck securely.
(6) Remove the tube from the tire.
(2) Remove the wheel (par. 69).
(3) Remove the capscrews (10, fig. 78) and
lockwashers (9) that secure the hubcap
b. Installation. Reverse procedures in a above.
(8) to the hub (4) and remove the hubcap.
Inflate tire to 100 pounds per square inch.
(4) Remove the cotter pin (11) that locks the
adjusting jamnut (7) to the spindle.
70. Drive Wheels, Tires, and Tubes
(5) Remove the adjusting jamnut and the
bearing cone (6).
a. Removal.
(6) Remove the wheel hub (4) from the truck.
(1) Raise and block the truck to permit
(7) Remove the bearing cone (2) and oil seal
removal of the wheel assemblies.
(1) from the spindle.
(2) Remove the outer wheel nuts (15, fig. 80)
(8) Remove the bearing cups (3 and 5) from
and remove the outer wheel assembly
hub.
from the hub.
(9) Remove the wheel studs (13) if
(3) Remove the ball seat nuts (14) and
necessary.
remove the inner wheel assembly from
hub.
(4) Deflate the tire.
b. Cleaning and Inspection.
(5) Remove the lockring (fig. 79) from the
(1) Clean the cups, cones, nuts, washers, and
wheel assembly.
hubcap with SD, and dry them with clean
soft cloth.
(6) Using an appropriate tire tool, remove the
tire and tube from the wheel assembly.
(2) Inspect the cups, cones, and washers for
breaks, cracks, burs, scoring, and wear.
(7) Remove the tube from the tire.
Replace the items as necessary.
(3) Replace all seals with new ones.
b. Installation. Reverse procedures in a above.
Inflate tire to 100 pounds per square inch.
c. Installation. Reverse procedures in a above.
71. Brakedrums, Hubs, Cones, and Cups
a. Removal.
follows:
(1) Remove the drive axle shaft (par. 72).
(1) Remove the cotter pin from the adjusting
jamnut (7, fig. 78).
(2) Remove the oil seal (1, fig. 80).
(2) Tighten the jamnut until a drag is felt
(3) Remove the outer adjusting nut (2),
when the wheels are turned.
lockwasher (3) and inner adjusting nut (4)
from the axle housing.
(3) Back off the jamnut either one-sixth of a
turn or to the nearest cotter pin hole, then
(4) Remove the bearing cone (6) from the
insert the cotter pin.
axle housing.
(5) Remove the brakedrum (11) and hub (7)
69. Steering Wheels, Tires, and Tubes
from the axle housing.
(6) Remove the oil seal (10) and bearing
a. Removal.
cone (9) and bearing cup (8) from the
hub.
(1) Using a suitable jack, raise the truck to
permit removal of wheel assemblies.
(7) Remove the bearing cup (6) from the hub.
Block the truck securely.
(8) Remove the nuts (12) from the studs (13)
(2) Remove the wheel mounting nuts (12, fig.
that secure the drum to the hub and
remove the brakedrum.
from the hub.
122
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