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 TM 55-4920-426-13&P
3-40
HUB AND BEARINGS REPLACE
3-40
This task covers:
Assembly
INITIAL SETUP
Equipment
Condition
Condition
Para
Description
Personnel Required
Hub/bearings
disassembled
63B Wheel Vehicle
Mechanic
Materials/Parts
Tools
Kit, NSN 5180-00-545-8645
Outer bearing cone-Part Number 15123
6 in., in. diameter drift pin
Outer bearing race-Part Number 15245
Inner bearing cone-Part Number 24780
Inner bearing race-Part Number 24720
Grease seal-Part Number 21208
ASSEMBLY
a.
Place the hub on a level surface, with the large opening up.
Insert inner bearing race, with wide flat surface down into hub.
b.
c.
Tap the bearing race into place, use the 6 inch brass drift pin and ball peen hammer.
d.
Insert inner bearing cone into hub.
e.
Insert grease seal, with part number up, in the hub opening. Tap the grease seal into the hub. The
seal is seated when the edge is flush with the hub.
f.
Turn hub over, and with small opening up, repeat steps b and c above with the outer bearing race.
Install hub on the axle.
g.
h.
Install outer bearing cone onto the axle.
i.
Install key washer onto axle.
Install nut onto the axle. Tighten nut finger tight while turning the hub clockwise, this action will seat
j.
the bearings.
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3-74
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