MMD Equipment 400S-6B1 - Manual (Page 34)

4. Operation
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4.6 Unit Operation
Keep the door shut and locked when machine is in operation.
If opening the door is necessary, be careful not to touch rotating or hot parts. Burns or serious injury
could result.
After the engine starts up, warm up it under unload for approx. five minutes.
Warming up after starting up is necessary for smooth operation of the engine. Do not operate the
engine at full load immediately after it starts up. This will shorten the equipment life.
During the warm-up operation, examine the different parts of the equipment for any looseness, leakage
of water, oil, fuel, and other irregularities.
Also, make sure that the alarm lamps are off.
Be sure to operate the generator at a rated frequency, irrespective of the load capacity.
If the machine is operated with a frequency lower than the rated frequency, it could cause the generator
or to be burned.
Do not set engine speed except 60Hz by“FREQUENCY ADJUSTER”.
4.6.1 Procedure to Start the Unit
Follow the starting procedure below.
＜ Manual operation＞
① Switch "OFF" the circuit breaker on the instrument
panel.
② Set the selector switch “1” to “MANUAL” operation
position.
③ Turning the starter switch to the “RUN” position,
the engine starts preheating automatically.
④ When the preheating lamp goes off, turn the starter
switch to “START” position and start the engine.
⑤ Once engine has started, let it warm up about 5
minutes at no-load condition.
⑥ Check frequency of generator at 60Hz. Switch “ENGINE SPEED” switch to “HIGH” position and
adjust frequency to 60Hz by “FREQUENCY ADJUSTER” if it is not set at 60Hz.
⑦ Adjust the voltage to the rated voltage by turning the voltage regulator knob, watching the
voltmeter.
⑧ Switch the three-phase breaker “ON” to supply generator power. To use auxiliary AC power
receptacles, switch the single-phase and three-phase breakers to “ON” for power.
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