2095-0
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60706-230
The normal slight variations in speed also directly
affect the frequency of the output current. This
frequency variation has no appreciable effect in the
operation of most loads (such as motors, lights and
most small appliances). However, timing devices and
clocks will not keep perfect time unless the engine
can keep the generator running at exactly 3600 RPM
at all times. Since this is not usually possible, minor
time errors in clocks occur.
The speed of the engine is usually adjusted so that
the generator produces proper voltage. If the adjust-
ment is made “cold,” set the voltage a little higher
than normal since it will drop a few volts as the gen-
erator warms up.
NOTE: When operating continuously at full load the
generator shell becomes very warm. It will be un-
comfortable to the touch. This is normal for any high
performance inherently regulated generator. Output
voltage should be checked periodically to ensure
proper operation of the generator and appliances.
CAUTION: EQUIPMENT DAMAGE
Low voltage may damage any motors or appliances
connected to it. Running the generator at exces-
sively high speeds results in too high voltage which
will also damage electrical devices connected to it.
Excessively high speed may also cause damage to
the generator armature windings.
Plans for installation should be prepared with proper
attention to mechanical and electrical engineering
detail to assure a satisfactory system installation.
The information in this manual is offered as a guide
to finalizing your installation plans. The installation
sequence is summarized below.
PLAN THE INSTALLATION
Generally these two-bearing generators are used on
portable equipment. For best service consider the
following:
. All electrical equipment should be protected from
excessive moisture. Failure to do so will result in
deterioration of the insulation and short circuits and
grounds.
2. The generator should be installed in a sheltered
area. If the unit must be left in the open it should
always be protected with a weather cover such as a
tarp or large piece of canvas after each use to keep
out water and dust.
CAUTION: EQUIPMENT DAMAGE
Always allow the generator and prime mover to cool
before covering with a flammable weather covering.
3. Circuit Breaker protection must be installed
between the generator and the loads. This protec-
tion should be accessible to the customer with out
removing panels. Circuit breaker should be 20 Amp.
MOUNTING
CAUTION: EQUIPMENT DAMAGE
The generator must be mounted with the engine to a
common rigid base to prevent stress on the engine
and generator shafts and bearings due to vibra-
tion displacement. For permanent installations, the
engine-generator is usually mounted on a sub-frame
which can be shock mounted with special neoprene
pads on the main frame.
CONNECTING TO THE LOADS
All wiring must be completed in accordance
with NFPA 70, The National Electric Code.
The 2FS family of generators come in two different
configurations. One model comes with two 120 Volt
receptacles mount in the end cover, connecting to
this model is only a matter of plugging in a standard
NEMA 5-5 3-wire plug into the receptacle.
The second configuration of the 2FS family is a
cover plate installed in the end bracket with the
three generator output leads routed through it for
your connection The hot lead is black labeled “G”,
the neutral lead is black, labeled “N” and the ground
lead is green.
