TM 9-6115-658-13&P 2-8 Table 2-2.  Operator Preventive Maintenance Checks and Services NOTE If the equipment must be in continuous operation, check and service only those items that can be checked and serviced without disturbing operation. Make the complete checks and services when the equipment can be shut down. ITEM NO. INTERVAL              LOCATION     PROCEDURE NOT FULLY MISSION CAPABLE IF: Item to Check/Service Before performing any maintenance that requires climbing on or under trailer, make     sure that trailer handbrakes are set, and front and rear trailer support legs are lowered. Failure to observe this warning could result in severe personal injury or death. TRAILER 1 Before HANDBRAKES a.  Check for proper operation of   handbrake lever (1).  Handbrake lever           should move freely throughout its entire          travel. b.  Check for proper adjustment of                   handbrake lever (1).  Handbrake lever is       properly adjusted when additional force is      required to move handbrake lever beyond      two-thirds distance of travel toward the         applied position.  If improperly adjusted,        refer to step d. c.  With trailer hooked to towing vehicle, set    the handbrake lever (1).  Move the trailer      slightly to see if the handbrakes hold the       wheels.  If not, proceed to step d. Handbrake lever (1) is locked in the applied position. WARNING