ARMY  TM  9-6115-645-10 AIR  FORCE  TO  35C2-3-444-11 MARINE  CORPS  TM  09244A/09245A-10/1 Never  attempt  to start the generator set if it is not properly grounded. Failure to observe  this warning  could result in serious  injury or death by electrocution. b. Determine  voltage requirements  of  load and  position  voltage reconnection terminal boards of the two generator sets to the required voltage  connection. Ensure  FREQUENCY SELECT switch (MEP- 806A) for both generators  are positioned  for  the same load requirements. c. Identify one generator set as No. 1 and the other as No. 2. d. Remove  paralleling cable from storage box  located  inside battery  compartment access door. e. Connect the paralleling  cable between the two generator sets. Connect the generator  sets  to the load observing the proper phase polarity. CAUTION Do not close the AC  CIRCUIT INTERRUPTER switch on either of the generator sets,    nor close the load contactor at load until specifically directed to do SO. Closing  any of these devices at any other time may severely  damage one or both of the  generator sets. 2-10.3    Operation. a. Start  each  generator set,    refer to paragraph 2-9.1. b. Rotate  both  VOLTAGE adjust potentio- meters to obtain the same voltage indication on each set. 2-26