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5. Periodic Inspection
5-8
5.4.6 Check Accumulations in Exhaust System
Every 250 Hours
When a diesel engine driven generator is continuously operated with less than 30% load or no load for
a long time, carbon will be stuck inside the exhaust pipes, exhaust muffler, and engine body.
Unburned fuel may also come out from connected portions of exhaust pipe and outlet port of the
exhaust muffler. If it is continuously operated under the conditions, the fuel which comes out could
ignite and cause a fire.
Further, wet-stacking and carbon accumulation could cause power drop in the engine as well as
overheating, resulting a serious damage to the engine. If this occurs, eliminate the carbon
accumulation by burning it under full load operation (to increase exhaust heat) until the exhaust gas
becomes almost clear.
(For load current, refer to the following table as a standard value.)
Frequency Hz
60
Rated voltage
V
240
Load current
A
24
In case of load operation, increase load factor step by step with checking the conditions of exhaust.
Do not place flammables surroundings because it could sometimes cause sparks from exhaust pipe.
5.4.7 Check GFCI Receptacles
Every 1 month or 250 Hours
Periodically, check the GFCI operation for safety.
A040270
<Procedure>
1.
Unplug all appliances from the generator.
2.
Start the engine.
3.
Turn [ON] the breaker on the instrument panel of this
machine.
4.
Press the test button.
5.
Press the reset button.
The reset button should extend with a click.
If the reset button does not extend, contact your
nearest dealer.
6.
When the reset button extends during operation.
Unplug all appliances from the GFCI protected
receptacle.
Press the reset button:
If the GFCI cannot be reset: The GFCI is faulty. Contact your nearest dealer.
If the GFCI resets properly: Check the appliance or the power cord.
If the generator is stored outdoors, unprotected from the weather, test the GFCI receptacle before each
use.
In case the GFCI has tripped due to the hazard of ground fault currents, investigate the cause and
correct it.
Test Button
Reset Button
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