Starting Procedures

ARMY TM 5-6115-612-12 NAVY AG-320B0-0MM-000 2-3. STARTING THE GENERATOR SET. (cont) f. Starting Procedures. (cont) (2) Move MASTER SWITCH (l), to RUN position. LOW OIL PRESS indicator will come on and stay on until pressure in Lubrication system reaches approximately 4 psi (0.11 MPa). UNDERVOLTAGE indicator will come on and stay on until engine reaches 100% rpm and generator is enabled. CAUTION To prevent equipment damage, ensure that red MALFUNCTION indicator lights (2) are closely monitored during operation. Normally, when a red light comes on the engine will automatically shut down. If automatic shut- down does not occur, immediately move MASTER SWITCH (1) to OFF position. Do not attempt restart until reason for malfunction has been determined and corrected. (3) Move MASTER SWITCH to START posi- tion and release. Engine should start and accelerate to rated speed within 1 minute. CAUTION If engine rotates but no ignition occurs, do not attempt restart. Check malfunction indicator lights and perform trouble-shooting as neces- sary. (4) Allow engine to run a minimum of 5 minutes to allow generator set temperatures and elec- tronics to stabilize. Observe READY TO LOAD light (4). Green light indicates engine is at rated speed. (5) Use VOLTAGE ADJUST knob (5) to adjust VOLTAGE meter (6) reading to 28 Vdc. Clock- wise adjustment will increase voltage. (6) Move CONTACTOR switch (7) to CLOSED position and release. Yellow light will come on. Signal pilot to start aircraft. CAUTION Do not attempt to adjust VOLTAGE ADJUST knob in respose to increases in load demand or decreases in voltage shown on VOLTAGE meter. These adjustments could cause stress on the equipment once the load is removed. NOTE The generator set provides constant dc voltage except during aircraft starting. The generator electronic control module (GECM) senses voltage at the output connector of the aircraft and automatically adjusts volt/ampere ratio to prevent exceeding 10 kW during air- craft starting. NOTE NOTE Engine life can be enhanced by allowing Engine life can be enhanced by allowing engine to run for a short time under no load engine to run for a short time under no load before closing CONTACTOR. before shutdown. 2-8 Change 2