TM 9-6115-658-13&P 2-9 Table 2-2.  Operator Preventive Maintenance Checks and Services – (continued) ITEM NO. INTERVAL LOCATION PROCEDURE NOT FULLY MISSION CAPABLE IF: ITEM TO CHECK/SERVICE If trailer is not coupled to towing vehicle, ensure that wheels are securely chocked.  Failure to do so may cause trailer to roll, resulting in injury to personnel or damage to equipment.                                                                         NOTE   Both handbrake levers (1) are adjusted the same way.  This procedure covers one handbrake. d.   Handbrake Lever Adjustment         (1)  Release handbrake lever (1). (2) Turn adjustment knob (2) clockwise          to tighten or counterclockwise to          loosen.  If unable to adjust, or          adjustment has been used up, refer          to Unit Level Maintenance. (3)  Check adjustment (Refer to step b).          Repeat steps (1) and (2) as required.          Repeat step c. 2 Before LANDING LEG ASSEMBLY a.  With trailer connected to towing   vehicle, check landing leg assembly (3)   for ease of operation. b.  Check landing leg assembly (3) for   proper mounting, alignment, and   general condition. c.  Ensure landing leg assembly (3) can be        locked in stored and support positions. d.  Ensure locking lever (4) moves freely. Landing leg assem- bly will not secure in stored position, or will not support trailer. WARNING