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
