Entec EW-4200D Betriebsanleitung - Seite 9

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System Descriptions

ENGINE CONTROL SYSTEM (cont.)

Start Position. Moving the Off/Run/Start switch to the Start

position allows +12 volts to flow the same as in the Run posi-

tion. In addition, +12 volts flows through the harness (white

wire) to the start relay (located on the top of the generator, by

the start motor). With +12 volts applied, the relay energizes and

the internal contacts close. The start motor begins to crank the

engine and the internal oil pump begins to develop oil pressure

and "floods" the bearings with oil.

When the oil pressure reaches 15 psi, the oil pressure switch

closes. +12 volts then goes to the Fuel Control Valve, energizing

it, and back to the panel through the harness (blue wire) to

illuminate the oil lamp.

As soon as the Fuel Control Valve is energized, high pressure

fuel is delivered to the injector, and the engine will start. The oil

pump continues to deliver oil to the bearings and the oil pressure

switch will stay closed. The hourmeter on the panel will also

operate.

SAFETY STOPS

As described previously in the Off/Run/Start switch sequence,

the entire switch and control system operates in series. If any

one of the three switches opens, the circuit is broken and the

engine will stop. Turning off the ship's 12 volt power will also

stop the engine.

Understanding the Lamps

All Lamps Out. If the water temperature switch opens, because

of high coolant temperature, the engine will stop and all of the

lamps will go out.

Exhaust and Oil Lamps Out. If the exhaust temperature switch

opens, because of high exhaust temperature, the engine will stop

and the exhaust and oil lamps will go out.

Oil Lamp Out. If the engine oil pressure falls below 12 psi, the

oil pressure switch will open. The engine will stop and the oil

lamp will go out.

Entec West, Inc.

16710 SW 72nd • Portland, Oregon 97224 • (503) 624-7118

EW-4200D

CAUTION: If battery power is

turned off, the engine will stop!