TM 9-2610-200-14 2-25 CHAPTER 2. CARE, MAINTENANCE, AND INSPECTION (Con't) SECTION III.  UNIT MAINTENANCE (Con't) 2-27.   AUTOMOTIVE AND LIGHT TRUCK TIRE MAINTENANCE. This Task Covers: a.  Demounting   c.  Mounting c.  Rim  Maintenance Initial Setup: Equipment Conditions: Tire and wheel assembly removed (see applicable vehicle TM). Valve core removed and tire deflated (see paragraph 2-26). Tools/Test Equipment: Tire iron (Item 32, Appendix B) Two tire irons, hooked, spooned, drop- center type (Item 38, appendix B) Fishing tool (Item 21, Appendix B) Inflator-gage, pneumatic tire (includes 10' hose) (Item 30, Appendix B) Bead Breaker (optional, Item 6, Appendix B) Tire Balancer (Item 5, Appendix B) Materials /Parts: Tire and rim lubricant (Item 90, 91 or 92, Appendix C) References: Tire Balancer, Operating Manual,   TM 9-4910-743-14&P a. DEMOUNTING WARNING        When dislodging tire beads, be absolutely certain no air pressure remains in the tire.        Serious injury may result. CAUTION        Use tire and rim lubricant as necessary to avoid damaging tire beads or bead seats                     when demounting tire. 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