TM 9-2350-256-20CHAPTER 8: MAINTENANCE OF SUSPENSION SYSTEM8-8 REPLACE COMPENSATING IDLER ARM ASSEMBLY WHEELS, HUB ASSEMBLY, LINKS, AND LINKBEARINGS--Continued9 Install two compensating idler wheels (5), ten bolts(4), ten washers (3), and ten new self-locking nuts(2). Torque self-locking nuts to 320-350 lb-ft (434-475 N m).10 Remove blocking and lower idler arm assembly(1).NOTEFollow-on maintenance: Tighten track tension (referto TM 9-2350-256-10)8-9 PLACE/SERVICE COMPENSATING IDLER AND ARM ASSEMBLYTHIS TASK COVERSa. Removalb. Cleaningc. Inspectiond. InstallationINITIAL SET-UPTools:Materials/Parts-Continued:Tool kit, general mechanic's (Appendix C,Seal assemblies (2) (Appendix G, item 263)item 53)Seals (2) (Appendix G, item 273)Handle (Appendix C, item 18)Washers, key (2) (Appendix G, item 277)Replacer (Appendix C, item 40)Wrench (Appendix C, item 60)Equipment Conditions:Roadwheel removed (see paragraph 8-1)Materials/Parts:Compensating idler wheel and hub assemblyGrease (Appendix D, item 13)removed and link disconnected (see paragraphOil, OE (Appendix D, item 18)8-8)Solvent, dry-cleaning (Appendix D, item 9)Track disconnected (refer to TM 9-2350-256-10)Gaskets (2) (Appendix G, item 47)WARNINGEnsure track is blocked when performing suspension maintenance. If track is not blocked, vehicle may roll and may cause severe injury or death to personnel.Compensating idler arm is heavy and may cause injury if dropped.NOTELeft and right sides are removed and installed in the same manner.a. REMOVAL1 Remove six screws (1) and compensating idler arm (2) from vehicle hull.8-28
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