TM 9-6115-658-13&P 2-10 Table 2-2.  Operator Preventive Maintenance Checks and Services – (continued) ITEM NO. INTERVAL LOCATION PROCEDURE NOT FULLY MISSION CAPABLE IF: ITEM TO CHECK/SERVICE 3 Before REAR LEVELING- SUPPORT JACK a. Check rear leveling-support jack (5) for          ease of operation. b. Check rear leveling-support jack (5) for          secure mounting. c. Ensure rear leveling-support jack can be       locked in stored and support positions. d. Ensure locking pin (6) is attached to leg         with chain (7). e. Ensure leveling-support jack foot can be        adjusted up and down. Rear leveling- support jack will not secure in stored position or will not support trailer.