Section 5

ENGINE DC CONTROL SYSTEM

CIRCUIT CONDITION-RUNNING:

With the FUEL PUMP (FP) and FUEL SOLENOID (FS) operating and ignition occurring, the engine should start, and the START-STOP SWITCH (SW1) is released.

A voltage is induced into the Stator's BATTERY CHARGE WINDING. This voltage is delivered to the ENGINE CONTROLLER BOARD (PCB) via Wire 66 to prevent STARTER MOTOR engagement above a cer- tain rpm.

Circuit board action terminates DC output to the STARTER CONTACTOR RELAY (SCR), which then de-energizes to end cranking. Circuit board action ter- minates DC output to the CHOKE SOLENOID (CS). The choke will go to a position determined by the

CHOKE HEATER (CH).

The LOW OIL PRESSURE SWITCH (LOP) is nor- mally closed. After start-up, engine oil pressure will open the LOP.

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Generac Power Systems 65, 55, 75 manual Circuit CONDITION-RUNNING, Choke Heater CH

65, 75, 55 specifications

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