TM 5-6115-275-14 NAVFAC P-8-615-14 TO 35C2-3-452-1 CHAPTER 2 OPERATING INSTRUCTIONS Section I.  OPERATING PROCEDURES 2-1. Controls and Instruments a. This  section  describes  the  various  controls  and instruments   and   provides   the   operator/crew   sufficient information  to  insure  proper  operation  of  the  generator set. b. Controls  and  Instruments.    The  purpose  of  the controls and instruments and the normal and maximum reading of the instruments are illustrated in figures 21, 2- 2, and 2-3. 2-2. Operation Under Usual Conditions a. General. (1) The instructions in this section are published   for   the   information   and   guidance   of   the personnel responsible for operation of the generator set. (2) The  operator  must  know  how  to  perform every  operation  of  which  the  generator  set  is  capable This  section  gives  instructions  on  starting  and  stopping the generator set, operation of the generator set,  and on coordinating  the  basic  motions  to  perform  the  specific tasks for which the equipment is designed. Since nearly every job presents a different problem,  the operator  may  have  to  vary  given  procedures  to  fit  the individual job. NOTE Do    not    remove    setscrew    in    top    of carburetor for fuel system priming. b. Starting. (1) Preparation For Starting. (a)   Perform     the     operator’s     preventive maintenance checks and services listed in Table 3-2. (b)   Place the three way fuel valve (B, figs. 2-1,   2-2   and   E,   2-3)   in   the   SET   or   AUX   position, depending on the source of fuel. (c)   Place Oil Pan Baffle Rod (D, figure 2- 3)    in    the    proper    position    depending    on    ambient temperature. (d)   Place air intake shutter (C, fig.  2-3) in the proper position depending on ambient temperature. (e)   Check  load  terminals  (figure  2-5)  for correct output connections. (f) Set voltage phase switch (figure 2-6) for desired output. (g)   Set voltage selector switch (A, figs.  2- 1 and 2-3) to monitor desired phase voltage. (h)   Set current selector switch (A, figs.  2- 1 and 2-3) to monitor desired current. (i) Turn   voltage   adjust   knob   (rheostat), (A, figs.  2-1 and 2-3) fully counterclockwise. (j) Place Circuit Breaker in off position (B, fig.2-3). (k)   See that the unit is  properly  grounded as follows: 1 The  ground  can  be  in  order  of preference,    an    underground    metallic    water    piping system, a driven metal rod, or a buried metal place. 2 A    ground    rod    must    have    a minimum diameter of 5/8 inch (1.5875 cm) if solid or ¾ inch (1.905 cm) if pipe, and must be driven to a minimum depth  of  8  feet  (240  cm).    A  ground  plate  must  have  a minimum area of 9 square feet (0.81 square meters) and be buried to a minimum depth of 4 feet (120 cm).  The ground   lead   must   be   NO.      6   AWG   (American   Wire Gauge) copper wire bolted or clamped to the rod,  plate or piping system.  Connect the other end of the ground lead to the generator set ground stud (A and B, fig.  2-4). WARNING Do    not    operate    the    generator    set without a suitable ground connection.    Electrical  defects  in  the unit,   load   lines,   or   load   equipment can    cause    death    by    electrocution when contact is made with ungrounded system. WARNING Use     slave     receptable     when     extra cranking power is required. (2)   Electrical Starting.  Start the generator set as shown in figure 2-7. (3)   Manual  Starting.    Start  the  generator set as shown in figure 2-7.1. CAUTION Make sure the circuit breaker is in the OFF position. Change 8 2-1