Bead Locks


TM 9-2320-280-20-2 8-8 Change 2 8-4.   TIRE, WHEEL, AND RUNFLAT MAINTENANCE INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix  B, Item 1) General mechanic’s tool kit: automotive, common No. 2 (Appendix B, Item 4) Special Tools Torque adapter, 9/16 in. (Appendix B, Item 144) Socket adapter (Appendix B, Item 146) Materials/Parts Eight locknuts (Appendix G, Item 92) Four locknuts (Appendix G, Item 93) Lubricant (Appendix G, Item 27.1) O-ring seal (Appendix G, Item 160) Detergent (Appendix C, Item 17) Manual References TM 9-2320-280-10 TM 9-2320-280-24P TM 9-2610-200-14 Equipment Condition Wheel removed (para. 8-3). General Safety Instructions • Do not use tire machine. • Ensure tire is totally deflated before removing wheel locknuts. • Never use tubes in wheel assemblies. • Rim surfaces must be kept clean and free of rust and dirt. • Never use wheel assemblies with damaged studs. • Never inflate a wheel assembly with the wheel locknuts removed. • Never inflate a wheel assembly without first checking wheel locknut torques. • Use only replacement parts specified in TM 9-2320-280-24P. • Do not exceed recommended tire inflation pressure. • Always use a tire inflation cage and a clip-on air chuck for tire inflation. This task covers: a.    Disassembly c. Repair b.   Inspection and Cleaning d.   Assembly a.  Disassembly WARNING Do not use tire machine. Injury to personnel or damage to equipment may result. NOTE The following maintenance procedure applies to vehicles using bias ply tires and two-piece magnesium runflats. Refer to paras. 8-4.1, 8-5, and 8-5.1 for maintenance instructions on radial tires and rubber runflats. 1. Place wheel assembly in a tire inflation cage. WARNING In all disassembly operations, ensure the tire is totally deflated before removing wheel locknuts. Failure to follow proper safety precautions could cause serious injury or death. 2. Remove valve core (4) from valve stem (3) and deflate tire (6). Run a piece of wire through valve stem (3) to make sure it is not plugged. 3. When tire (6) is fully deflated, remove wheel assembly from tire inflation cage and place flat on floor with valve stem (3) facing up. 4. Using a circular pattern, loosen eight wheel locknuts (1) securing rim halves (2) and (8) together. If you hear escaping air, do not proceed. Wait until the sound stops and recheck valve stem (3). When you are certain the tire (6) is fully deflated, proceed to remove wheel locknuts (1). Discard locknuts (1).



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