Operation
Owner’s Manual for MLT Light Tower
21
Auxiliary Outlets
See
. Depending upon the model, the control
panel is equipped one or two 120V GFCI (A) and 240V
twist-lock (B) outlets for running accessories or tools from
the generator. Power is supplied to the receptacles any
time the engine is running and the main circuit breaker is
switched ON (I).
NOTE:
Do not pull more than 1000W from each outlet
when the lights are on. This will overload the generator
and cause the main circuit breaker to trip. Should the
breaker trip, switch off the lights, remove some of the
load to the outlets and wait 10 minutes for the bulbs to
cool before turning them back on.
With all of the lights off, the full generator output may be
used with the 240V twist-lock outlet.
Figure 3-8. Auxiliary Outlets
Wet Stacking
The unit is powered by a diesel engine. Diesel engines
are susceptible to wet stacking if lightly loaded. Wet
stacking occurs when an engine is run at less than 30%
of its full load capacity, causing unburned fuel to
accumulate in the exhaust system. Wet stacking can be
detected by continuous black exhaust when the unit is
under a constant load. It can also cause fouling of
injectors and buildup on engine valves. Diesel engines
operate properly when applied loads are between 30%
and 100% capacity. Appropriate generator sizing is
determined by the anticipated load. If the unit is in a wet
stack condition, load the unit heavily for five hours or until
the exhaust is clear.
Voltage Regulator Option
Some units may be equipped with an electronic voltage
regulator. The electronic voltage regulator controls the
output of the generator by regulating the current into the
exciter field. The voltage regulator on your unit is
adjusted before shipment from the factory. Contact
Generac Mobile Products for additional information
before attempting to adjust the voltage regulator.
Engine Derating
All units are subject to derating for altitude and
temperature. Derating reduces the available power for
operating tools and accessories connected to the outlets.
For every increase in 1000 ft (305 m) of elevation, engine
performance for this unit typically drops between 2% and
4%. Also, engine performance decreases about 1% for
every 10ºF (5.6ºC) increase in ambient air temperature
over 72ºF (22ºC).
Shutting Down the Unit
Check with personnel using power supplied by the unit
and let them know the power is going to be turned off.
Make sure the power shutdown will not create any
hazards by accidentally turning off equipment that needs
to remain running (pumps, compressors, lights, etc.).
1. Remove all loads from the outlets.
2. See
. Switch the individual circuit
breakers for each light OFF (O).
3. Switch the main circuit breaker OFF (O).
4. Turn the Engine Start switch to the OFF (O)
position.
NOTE:
For extended storage time, disconnect the
battery. For extended storage requirements, refer to the
engine operator’s manual.
Figure 3-9. Shutting Down
(000278)
WARNING
Burn hazard. Lamps become extremely hot
while in use. Allow 10–15 minutes for cooling
before handling or lowering mast. Touching a
hot lens or fixture can cause severe burns.
120V
240V
BREAKER
BREAKER
240V
BREAKER
NEUTRAL BONDED TO FRAME
I
O
004478
A
B
I
O
I
O
I
O
I
O
GLOW
PLUG
OFF
RUN
START
004550
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