TM 9-2330-392-14&P 4-10 Change 2 Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS) for M1101, M1102, and Trailer Chassis - Continued Item No. Interval Location Procedure Not Fully Mission Capable If: Item To Check/ Service 8 Semi- annual Hydraulic Brake System a. Inspect brake lines and hoses for defects such  as  missing  clamps,  cracks,  leaks, loose     connections,     or     broken     lines. Repair as needed (para 4-31). a. Any leaks are found. b.    Inspect    master    cylinder    assembly    for damage or missing cap, leaks, and proper fluid level. If cap is damaged or missing, replace it. Proper fluid level is 1/8 in. (3 mm)  below  top  of  edge  of  reservoir.  If not at specified level, add fluid in accor- dance with Appendix G. b. Any leaks are found. c. Visually   check   brake   breakaway   cable and   breakaway   lever   for   damage   and missing    parts.    Check    that    breakaway lever is in down position. If damaged or missing  parts,  repair  as  needed  (para  4- 27). c. Cable or lever is missing or dam- aged. 9 Semi- annual Lights, Reflectors, and Wiring a. Visually  inspect  lights  and  reflectors  for missing or broken parts or loose connec- tions.     If     any     connectors     are     loose, tighten.  If  reflectors  are  missing  or  bro- ken, replace. a. Any lights are missing or broken. b.    Inspect wiring harness and intervehicular cable  for  exposed,  frayed,  or  damaged wiring or missing mounting hardware. If damaged, replace (para 4-19). b. Wiring harness or cable is exposed, frayed, or damaged. Mounting hardware is missing. c. Connect  intervehicular  cable  to  towing vehicle    (para    2-10).    Operate    towing vehicle  light  switch  through  all  settings and check trailer lights. If any are inoper- ative or unserviceable, repair as needed. c. Other  than  marker  lights,  one  or more    lights    are    inoperative    or unserviceable. 10 Semi- annual Front Support Leg a. Check   front   support   leg   for   damage, missing    parts,    and    proper    operation. Check that caster moves freely and han- dle can be cranked up and down to raise and  lower  trailer.  Repair  or  replace  as needed (para 4-44). b.    Fully   extend   support   leg   and   clean   as necessary. c. Remove support leg cover and lubricate (App G).