Item No. 1 a TM  9-2350-261-20-1 Table  2-1.  Unit  Level  Preventive  Maintenance  Checks  and  Services  for  M113A2  FOV Interval Semi- Annual Semi- Annual Item  To Be Inspected Road Test Left and Right Steering Procedure NOTE Be   sure   that   all   operator   level PMCS in your -10 have been com- pleted   prior   to   performing   this PMCS.   Any   non-mission   capable faults  must  be  corrected  prior  to road   test.   Check   instruments, gages   and   warning   lights   for normal  indications  as  outlined in   your   -10.   All   operator   re- corded  deficiencies  should  be  re- viewed  prior  to  road  test. Perform  a  road  test.  Drive  carrier  at least 5 miles (8 km). NOTE When   conditions   prevent   a   road test,   perform   engine   idle   test (page  2-43),  governed  no  load test,  and  stall  check  (page  2-44). CAUTION Do  not  allow  engine  to  operate for   prolonged   periods   if   :   out- side  air  temperature  is  less  than 85°  F  (29°  C)  and  coolant  tem- perature   gage   is   above   200°   F (93°   C).   Outside   air   temperature is above 85° F (29° C) and coolant temperature  gage  is  above  230°  F (110°  C).  Serious  damage  to  en- gine   may   result. CAUTION Power  plant  can  be  damaged.  Do not   pivot   steer   when   carrier   is moving  except  in  a  track  failure emergency. Check steering levers for left and right turns.  If  carrier  does  not  turn  left  or right when lever is applied, troubleshoot   lever   adjustment. Not   Mission Capable   If Any  Class  III  leak o r    d a m a g e    t h at would   prevent   op- eration  of  carrier. Binding,   grabbing, unusual   noise,   vi- bration,   or   carrier fails  to  turn. Change  3  2-41