TM 9-2350-256-20
CHAPTER 9: MAINTENANCE OF HULL- AND CAB-RELATED COMPONENTS
9-83 REPLACE/REPAIR BEARING UNIT HOUSING ASSEMBLY
THIS TASK COVERS
a. Removal
b. Disassembly
c. Assembly
d. Installation
INITIAL SET-UP
Tools:
Parts:
Reference:
Tool kit, general mechanics
Seal (Appendix G, item 244)
Deleted
(Appendix C, item 53)
Seal (Appendix G, item 245)
*Pliers, retaining ring
Seal (Appendix G, item 253)
Equipment Condition:
(Appendix C, item 30)
(for left-center brake shaft
Service brake linkages removed
bearing unit only)
as necessary (see paragraph 9-80)
a. REMOVAL
Remove bearing unit housing assembly (see paragraph 9-80).
b. DISASSEMBLY
NOTE
Seal (1) and lubrication fitting (2) are not
part of left-center brake shaft bearing unit
housing assembly.
1
Remove lubrication fitting (2) from housing (3).
2
Pry seals (1 and -I) out of housing (3).
3
Remove retaining ring (5) from housing (3).
4
Remove ball bearing (6) from housing (3).
c. ASSEMBLY
1
Install ball bearing (6) into housing (3) making sure
that bearing hole alines with hole for lubrication
fitting in housing. Secure ball bearing with
retaining ring (5).
NOTE
Seals (1 and 4) must be installed with rubber lips facing outward.
2
Install new seals (1 and 4) into housing (3).
3
Install lubrication fitting (3) into housing (3).
4
Lubricate in accordance with Appendix J.
d. INSTALLATION
Install bearing unit housing assembly (see paragraph 9-80).
NOTE
Follow-on maintenance:
Install service brake linkages if removed (see paragraph 9-80)
9-206
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