ARMY *TM 9-6115-464-34 AIR FORCE TO-35C2-3 ... - Igor Chudov

ARMY TM 9-6115-464-34AIR FORCE TO 35C2-445-2NAVY NAVFAC P-8-624-344-9. LOW FUEL PROTECTIVE DEVICE.a. Disconnect cable to the day tank fuel solenoid valve.b. Operate generator set at full load.c. The low fuel protective device must operate when the fuel in the day tank falls to a point at which there isonly enough to operate the set at rated load for one minute.4-10. PARALLEL OPERATION PROVISIONS.a. For Class 1 (Precise) Sets (REAL POWER):(1) Remove the shorting plug.(2) With rated (15 kw) load on the generator set, measure the dc voltage across pins A and 8 of one ofthe paralleling receptacles (J45, J46 or J47). Adjust R28 (located in the precise relay box) untilcorrect *VDC is indicated. Ensure that correct pin * is positive.b. For Class 1 (Precise) Sets (Reactive Power):(1) Remove shorting plug.(2) With rated (15 kW) load applied at .8 PF, and the operation switch in the parallel position, measurethe ac voltage across pins C and D of one of the paralleling receptacles (J45, J46, or J47). AdjustR29 (located on the special relay box) until 6 volts ac is achieved.c. For Class 2 (Utility) Sets (Real Power), adjust governor droop as follows:(1) Start and run engine until it reaches operating temperature.(2) With rated (15 kW) load applied and the engine operating at rated speed, droop may be determinedby removing load and noting no-load frequency.(3) Adjust the knurled knob, located at the rear of the fuel pump, until the difference in frequencybetween no-load and full load is 3 percent. Note the increase of hertz when load is removed. At 60Hz, droop should be 1.8 Hz, and at 400 Hz, droop should be 12.0 Hz.d. For Class 2 (Utility) Sets (Reactive Power):(1) Start and run engine until it reaches operating temperature.(2) Install shorting plug(3) With rated (15 kW) load applied at .8 PF and the generator operating at rated voltage; voltage droopmay be determined by removing the load and noting the difference between full-load and no-loadvoltage.(4) Adjust R29 (located on the special relay box) until the difference in voltage between no-load and fullload is 3 percent. Note the increase of volts when load is removed. At 120 volts, droop should be 3.6volts.4-3