8
REV C
60706-220
Although individual units and models vary slightly, the normal voltage
and frequency of the engine-generator described in this manual are
approximately as follows, under varying loads:
LOAD vs. OUTPUT
Generator
Load
Speed
(RPM)
Frequency
(Hz)
Voltage
None
3690
61.5
120V
Half
3600
60.0
120V
Full
3510
58.5
120V
The speed of the engine was carefully adjusted at the factory so that
the generator produces the proper voltage and frequency. For normal
usage, the speed setting should not be changed. If the generator is
being run continuously on a very light load, it is often advisable to lower
the operating speed slightly.
The engine will govern itself at full speed. Intentionally overriding the
governor and operating the generator at low voltage may damage both
the generator and any load connected to it. Running the engine at
excessively high speeds results in high voltage, which may significantly
shorten the life of light bulbs and appliances being used, as well as
possibly damaging the engine.
CAUTION: EQUIPMENT DAMAGE
SPEED ADJUSTMENTS SHOULD ONLY BE MADE BY A QUALIFIED
SERVICE TECH.
Output voltage should be checked periodically to ensure continued
proper operation of the generating plant and appliances.
CONNECTING THE LOADS
The engine-generator covered in this manual was designed for portable
use. Do NOT operate indoors. The unit should be stored in a warm, dry
location. Move the unit outdoors to a flat, dry location for use.
WARNING: PERSONAL DANGER:
Operating any engine driven generator without proper air flow can
result in personal injury or death. DO NOT operate this unit inside a
home or garage, near vents or windows, or anywhere carbon monoxide
gas could accumulate.
Failure to properly limit and balance the load applied to the generator
will cause the generator to produce low voltage and may damage
the engine generator set. It may also cause severe damage to the
loads connected to the generator at the time. Improper loading of the
generator set constitutes abuse and will not be covered by warranty.
Your individual loads must be protected by individual circuit breakers
mounted in some type of distribution panel. This location will also be
where you will install your neutral to ground bond. You must wire four
separate wires from the generator (2-hot, 1- neutral, and 1-ground) to
the distribution panel.
APPLYING THE LOADS
Allow the engine to warm up for two or three minutes before applying
any load. This will allow the engine to reach normal operating
temperature and oil to circulate throughout the engine. A short warm-
up time will permit the engine to work more efficiently when the load
is applied and will reduce the wear in the engine, extending its life.
Receptacles have been provided to allow loads to be connected to the
generator.
The loads should be added one at a time. If a large motor is being
started: or multiple motors are being started, they should be started
individually and the largest should be started first.
CAUTION: EQUIPMENT OVERLOAD
Keep the generator load within in the generator and receptacle
nameplate rating. Overloading may cause damage to the generator
and/or the loads.
Most electric tools and appliances will have the voltage and amperage
requirements on their individual nameplates. When in doubt, consult
the manufacturer or a local electrician. The nameplate amperage rating
for electric motors can be misleading. See “Starting Electric Motors” in
the Unit Capabilities.
Proper utilization of the receptacles located on the control panel
is necessary to prevent damage to either the receptacles or the
generator. The generator is a limited source of electrical power,
therefore, pay special attention to the receptacle and generator ratings.
The nameplate rating can be obtained through a single receptacle as
long as the receptacles amperage rating is not exceeded.
