Install Hub Cap

CAUTION

g. Install Hub Cap.

When installing hub and brake

drum on axle do not let drum drag

(1) Clean the face of the hub cap and apply a

across lining on brake shoes.

light coat oaf non-hardening gasket sealer for the hub

cap gasket.

(2) Install special service nut with recessed

(2) Position the gasket and apply another

face towards the bearing. This nut replaces original

light coat of non-hardening gasket sealer to outside

adjustment nut (save the original adjustment nut for

surface.

future use. The reuse of this nut with new bearings will

again achieve the original positive bearing adjustment).

(3) Install the transparent hub cap and

reinforcing ring with cap screws and lockwashers.

(3) Tighten special service adjusting nut to 50

Tighten cap screws.

ft.-lb. with a torque wrench while rotating hub back and

forth (in both directions).

h. To Change from Positive Wheel Bearing

Adjustment to Manual Adjustment. (fig. 4-9). If wheel

(4) Back off adjusting nut (special service

bearings adjustment measured as in paragraph 4-31c

nut) 1/4 turn.

is greater than .012 inches loose, but less than .040

(5) Install pierced lockwasher.

Reverse

inches loose, a manually adjusted set may be used.

lockwasher if necessary to engage dowel on adjusting

The inner adjusting nut is replaced by a special Service

nut.

Nut A-1227-S-877. This nut has a recess on its inner

face to clear the shoulder on the spindle. This will

(6) Install jam nut and tighten to 256-300 ft.

permit removing the excess looseness, if the bearings

lb. with a torque wrench.

are satisfactory for further ,service.

Perform the

(7) Install gasket and hub cap per preceding

following steps:

subparagraph g.

(1) See d above for removal and replacement

of hub and drum.

4-22