TM10-3930-660-10 2-28.   EMERGENCY   BOOM   OPERATIONS. If  engine  power  is  lost  with  the  boom  extended  or  raised,  the  boom  must be  fully  retracted  before  it  is  lowered  to  prevent  severe  personal  injury and   vehicle   damage. NOTE Contact   Unit   Maintenance   to   perform   the   necessary   preparation   of   the 6KVRRTFL   for   emergency   boom   operations. a. Emergency   Boom   Retracting. Whenever   an   emergency   situation   prevents   the   use   of   engine power   for   retracting   the   boom,   proceed   with   the   following: (1) (2) Remove   the   transmission   cover. Remove  the  steer  cylinder  crossover  tow  hose  from  the  dummy  tee  fitting,  located  on  the  main frame  crossbar  at  the  rear  of  the  transmission.  Install  caps  on-the  dummy  tee  (two  small  caps are  located  in  the  tool  box  as  part  of  the  emergency  Iift/retract  kit). 2-54