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TM 9-2330-398-24
2-63.
HUB AND BRAKEDRUM ASSEMBLY REPLACEMENT.
This Task Covers:
a.
Removal
b.
Cleaning and Inspection
c.
Installation
Initial Setup:
Tools/Test Equipment:
• Gasket (Item 22, Appendix F)
• Common No. 1 tool set (Item 1, Appendix B)
• Lockwasher (6) (Item 96, Appendix F)
• Common No. 2 tool set (Item 2, Appendix B)
• General mechanic's tool kit (Item 4,
Equipment Conditions:
Appendix B)
• Semitrailer uncoupled (refer to TM 9-2330-398-10).
• Fail-safe chamber brakes caged (para 2-60).
Materials/Parts:
• Air reservoirs drained (refer to TM 9-2330-398-10).
• Dry-cleaning solvent (Item 12, Appendix C)
• Tire and wheel assembly removed (para 2-62).
• Grease (Item 18, Appendix C)
• Rag (Item 25, Appendix C)
a.
REMOVAL
1. Remove six bolts (1) and lockwashers (2), hubcap (3), and gasket (4) from hub and brakedrum assembly (11).
Discard lockwashers and gasket.
2. Remove outer wheel bearing nut (5), lockring (6), and inner wheel bearing nut (7) from spindle (10).
3. Remove outer wheel bearing (8) from outer wheel bearing cup (9) and spindle (10).
2-152
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