TM 9-2610-200-14 2-39 CHAPTER 2. CARE, MAINTENANCE, AND INSPECTION (Con't) SECTION III.  UNIT MAINTENANCE (Con't) 2-29. RUNFLAT TIRE MAINTENANCE (HMMWV).   This Task Covers: a. Disassembly b. Inspection and Cleaning c. Assembly Initial Setup: Equipment Conditions: Wheel removed (see TM 9-2320-280-20) Tools/Test Equipment:   Torque wrench adapter (Item 2, Appendix B) Thickness gage in Shop equipment, automotive maintenance and repair, Organizational Maintenance, Common no.1 (Item 1. Append. B) Inflator-gage, pneumatic tire (includes 10' hose) (Item 30, Appendix B) References: TM 9-2320-280-10 TM 9-2320-280-20 TM 9-2320-280-20P Materials/Parts: Adhesive tape (see TM 9-2320-280-20P) Filament tape (see TM 9-2320-280-20P) One preformed packing (see TM 9-2320- 280-20P) Twelve self-locking nuts (see TM 9-2320- 280-20P) Detergent (Item 83, Appendix C) Two lubricant packs (Item 89, Appendix C) Tire and rim lubricant (Item 90, 91 or 92, Appendix C) Wire brush (Item 102, Appendix C) a.  DEMOUNTING   WARNING Do not use tire machine. Injury to personnel or damage to equipment may result. 1.    Place wheel assembly in inflation safety cage (see paragraph 2-3). WARNING Ensure that tire is totally deflated before removing wheel nuts. Failure to follow proper safety precautions could cause serous injury or death. CAUTION Never use petroleum based products such as oil or grease when demounting/mounting tires from rims. Petroleum based products have a severe degrading affect on tire rubber. Use only approved tire and rim lubricant. NOTE These instructions only provide basic information for the HMMWV bias tire, rim and   two- piece magnesium runflats. Since fielding of the first HMMWV's there have been various configurations of the HMMWV tire, rim and runflat assemblies (e.g. radial tires, one-piece rubber runflats etc.). Refer to the latest version of TM 9-2320-280-20  for maintenance instructions on other HMMWV configurations.   2.    Remove valve core (4) from valve stem (3) (see paragraph 2-26) and deflate tire (6). Run a piece of wire through valve stem to ensure that it is not plugged.