Operation (continued)
32
b)
Change oil after the first 20 operating hours, and at least every 100 operating hours thereafter, as
directed in the engine owner’s manual.
WARNING:
Never open oil port while engine is running. Hot oil can spray over face and body.
4. Checking Generator Output
Although the speed of the engine was carefully adjusted at the factory so that the generator produces the
proper voltage and frequency,
output voltage should be checked periodically to ensure the generator is
working properly before connecting loads to the generator
.
WARNING
:
The generator must be run at the correct speed in order to produce the proper
electrical voltage and frequency. Failure to do so could result in damage to
equipment powered by the generator and possible injury to the individual.
Output voltage can be checked at the voltmeter on the control panel or can be checked with a portable voltage
meter:
1.
Start engine and allow to warm up for 5 minutes. DO NOT connect any loads.
2.
Use data meter on control panel to check generator output or use a voltage meter
to check output voltage at the generator’s outlets/receptacles.
3.
Measured voltage should be within the following ranges:
a)
120V +/- 10% at 120V receptacles.
b)
240V +/- 10% at 240V receptacles.
4.
If measured voltage is not within the specified range, have generator adjusted by factory authorized
personnel. DO NOT attempt to adjust the engine speed yourself.
Note:
Slight variation in
voltage/speed with
changing electrical
loads
All engines have a tendency to slow down when a load is applied. When electrical
loads are connected to the generator, the engine is more heavily loaded and as a
result the speed drops slightly.
This slight decrease in speed, together with the voltage drop within the generator
itself, results in a slightly lower voltage when the generator is loaded to its full
capacity than when it is running with no load. Additionally, there may be small brief
surges and drops in voltage as motors connected to the generator cycle on or off.
The slight variation has no appreciable effect in the operation of motors, lights, and
most appliances.
