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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.
DERATING FOR ALTITUDE
All units are subject to derating for altitude and temperature; this will reduce the available power for operating tools
and accessories connected to the control panel. Typical reductions in performance are 2-4% for every 1000 ft. (305
m) of elevation and 1% per 10ºF (5.6ºC) increase in ambient air temperature over 72ºF (22ºC).
AUTOMATIC SHUTDOWN
This unit is equipped with a low oil pressure and high coolant temperature auto-shutdown system. This system will
automatically shut off the fuel supply to stop the engine if oil pressure drops too low or if the engine exceeds normal
operating temperature. Return the engine start switch to the "OFF" position to reset the unit after you have determined
the cause of the shutdown.
VOLTAGE REGULATION
The electronic voltage regulator controls the output of the generator by regulating the DC voltage into the exciter
field. The regulator has three screwdriver adjustable potentiometers that may be adjusted for voltage, stability and
under frequency (U/F). The voltage regulator on your unit is adjusted before shipment from the factory. Contact
Magnum Power Products LLC for additional information before attempting to adjust the voltage regulator.
EMERGENCY STOP SWITCH
The unit is equipped with one Emergency Stop switch. For location of the Emergency
Stop switch, refer to
"Exterior Component Locations" on page
clearly labeled "EMERGENCY STOP". The switch can be accessed and activated
with all doors closed and locked.
Activate the Emergency Stop switch by pushing the red button in until it locks down.
This will trip the main circuit breaker which will open the contact, disconnecting the
load to the connection lugs. This will also open the fuel circuit, shutting down the engine.
The switch will remain closed until it is pulled out.
Use the Emergency Stop switch only when the unit must be shut down immediately. For
any other shut down, refer to
SHUTTING DOWN THE GENERATOR
When you have finished using the generator, proceed with shut down as follows:
1. Remove any loads from the main control panel receptacles.
2. Switch the individual circuit breakers for each receptacle to the "OFF/O" position.
3. Switch the main circuit breaker to the "OFF/O" position.
4. Turn the engine start switch to the "OFF" position.
12
10. The red switch is
"Shutting Down The Generator" on page
00230
12.
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