TM 5-6115-365-15 C3 21-4.  Starting WARNING Never operate the generator set in an enclosed  area  unless  exhaust  gases are    piped    outside.        Inhalation    of exhaust  fumes  may  result  in  serious illness or death. a. Perform  the  pre-starting  operations  in  TM 5-6115-450-15. b. Position  the  transfer  switch  to  the  desired generator. c. Start   the   generator   as   prescribed   in   TM 5-6115-450-15. 21-5.  Stopping. Stop the generator as described in TM 5-6115-450-15. 21-6.  Operation Operate     the     generator     set     as     instructed     in     TM 5-6115-450-15.    Use  the  fuel  transfer  valve  to  perform fuel  transfer  operations  from  the  set  mounted  5-gallon can to the remote cans. Section III.  OPERATOR'S MAINTENANCE INSTRUCTIONS Operator's  maintenance  of  the  power  unit  is  concerned with keeping the generator sets lubricated; the fuel cans filled;    the    battery    electrolyte    level    maintained;    and cleaning and servicing the fuel filters and air cleaners as described  in  TM  5-6115-450-15.    Removal  of  dust  and dirt  from  the  equipment  is  also  a  routine  maintenance function of the operator. Section IV.  ORGANIZATIONAL MAINTENANCE INSTRUCTIONS 21-7.  Tarpaulin and Roof Bows a. Removal. (1) Remove tarpaulin from unit. (2) Pull   out   chain-secured   pins   that   secure roof bows to trailer and remove bows. b. Cleaning and Inspection. (1) Clean  tarpaulin  and  bows  with  water  and detergent.  Dry thoroughly. (2) Inspect  tarpaulin  for  tears,  holes,  broken or missing ropes and straps, and other defects.  Inspect bows for cracks, bends, or other defects. c. Installation.    Installation  is  reverse  of  procedure a  above.    Be  sure  tarpaulin  is  treated  for  waterproofing and mildew resistance before reinstalling. 21-8.  Transfer Switch Indicating Lamp Replacement Unscrew   defective   lamp   from   switch   box   and   remove gasket.    Install  gasket  on  replacement  lamp  and  screw into base socket in distribution box. Section V.  DIRECT AND GENERAL SUPPORT AND DEPOT MAINTENANCE INSTRUCTIONS 21-9.  Generator Set a. Removal. (1) Disconnect  remote  fuel  line  at  three-way valve. (2) Disconnect     electrical     leads     and     load cables. (3) Disconnect oil drain adapter. (4) Remove the battery. (5) Disconnect  the  exhaust  pipe  (front  engine only). (6) Remove   nuts,   washers,   and   capscrews that   secure   generator   set   to   trailer   body   and   remove generator set. b. Installation.    Installation  is  reverse  of  removal, procedure   a    above.        Make    sure    that    the    beveled washers are properly positioned so that generator set is securely mounted to the trailer body. 21-5