5.2.8Voltage Regulator and Throttle Handle

5.2.8.1Voltage Regulator

The dial adjusts output voltage. By turning the dial clockwise, an operator can increase voltage. By turning the dial counter-clockwise, an operator can decrease voltage.

5.2.8.2 Throttle Handle

This handle controls the engine revolution. By turning the throttle clockwise, engine speed slows down; turning the handle counter-clockwise increases the speed. The lock of the handle at the required position (speed) can be done by turning the Locknut clockwise. Always lock the handle while the generator is operating. The engine speed can also be changed to high or low by pulling the handle all the way out or pushing all the way in, while the release button on the knob pressed.

<Caution>

Always lock the handle while the generator is operating. Failure to do so may result in fluctuation in frequency (engine speed).

5.2.8.3Earth Leakage Relay Unit

Sensing the earth leakage current, the unit (relay) send a signal to the 3-phase and the 1-phase breaker to trip-off in order to shut-off the circuit to the terminals (loads).

<Refer to.7-3 Earth Leakage Relay Unit and Grounding>

5.3 Fuel Line Changeover Valve (3-way valve)

! Caution

:Burns

￿Always stop the engine when performing any work on the fuel line.

￿Always wipe any drip of Diesel fuel or engine oil. Do not use this equipment, when leak is found. Repair the equipment before use.

By switching the 3-way valve, you can use fuel from external fuel tank. In this case, the Diesel fuel in the built-in tank will not be used.

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Shindaiwa DG250MI Fuel Line Changeover Valve 3-way valve, Voltage Regulator and Throttle Handle, Earth Leakage Relay Unit