TM 9-2350-256-20CHAPTER 9: MAINTENANCE OF HULL- AND CAB-RELATED COMPONENTS9-83 REPLACE/REPAIR BEARING UNIT HOUSING ASSEMBLYTHIS TASK COVERSa. Removalb. Disassemblyc. Assemblyd. InstallationINITIAL SET-UPTools:Parts:Reference:•Tool kit, general mechanic’s•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 shaftService brake linkages removedbearing unit only)as necessary (see paragraph 9-80)a. REMOVALRemove bearing unit housing assembly (see paragraph 9-80).b. DISASSEMBLYNOTESeal (1) and lubrication fitting (2) are notpart of left-center brake shaft bearing unithousing assembly.1Remove lubrication fitting (2) from housing (3).2Pry seals (1 and -I) out of housing (3).3Remove retaining ring (5) from housing (3).4Remove ball bearing (6) from housing (3).c. ASSEMBLY1Install ball bearing (6) into housing (3) making surethat bearing hole alines with hole for lubricationfitting in housing. Secure ball bearing withretaining ring (5).NOTESeals (1 and 4) must be installed with rubber lips facing outward.2Install new seals (1 and 4) into housing (3).3Install lubrication fitting (3) into housing (3).4Lubricate in accordance with Appendix J.d. INSTALLATIONInstall bearing unit housing assembly (see paragraph 9-80).NOTEFollow-on maintenance:Install service brake linkages if removed (see paragraph 9-80)9-206Change 1
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