TM 5-4930-244-14
(2)
Inspect the hub and drum (3) for cracks, score marks, deep scratches and hard spots, which will appear as small
discolored areas. If the hard spots cannot be removed with fine emery cloth or if any other conditions listed above
exist, the drum must be resurfaced.
(3)
Inspect the wheel assembly (2) for cracks, dents, warping, holes, deformed lug holes, broken or leaky valve
stems. Replace if needed.
(4)
Inspect tires for cuts, cracks, holes loose tread, uneven wear, or any other deterioration. Replace if faulty
NOTE
Bearings and bearing cups come as matched sets and new bearings should never
be installed in old bearing cups.
(5)
Carefully inspect the bearings (12 and 15) for cracks, heat discoloration, worm rollers, etc. Inner and outer
bearing cups (13 and 16) for wear and damage.
d.
Assembly.
(1)
Use GAA grease to pack the inner and outer bearings (12 and 15) Work the grease completely into the bearings,
forcing it between the rollers, cone and cage from the back side.
(2)
Press inner and outer bearing cups (13 and 16) into hub and drum (3).
(3)
Put a small quantity of grease in board of each bearing cup (13 and 16) inside the hub and drum (3). Using your
finger, form a dam at these points to provide extra grease availability and to keep thinned grease from flowing out
of the bearings (12 and 15).
(4)
Place the grease-packed inner bearing (15) into the rear of the hub and drum (3) and put a little more grease
outboard of the inner bearing (15).
(5)
Place a new grease seal (14) over the inner bearing (15) and tap the grease seal (14) evenly into place with a
hammer and blunt punch until it's flush with the hub and drum (3).
e.
Installation.
(1)
Apply a thin coat of grease to spindle (9).
(2)
Carefully place the hub and drum (3) onto the spindle (9) and push the grease-packed outer bearing (12) into
position.
(3)
Slide hub and drum (3) onto spindle (9) until snug upon back lip of spindle (9).
(4)
Install bearing washer (11) onto spindle (9). Install bearing spindle nut (10) onto spindle (9).
(5)
Hand tighten bearing spindle nut (10) until slightly snug
NOTE
Do not install cotter pin or bearing cap yet.
(6)
Mount wheel assembly (2) onto lug studs (6).
NOTE
Do not lower jack stands yet
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