CONTROL PANEL (TYPE 3)SYSTEMS OPERATIONEngine Does Not StartIf the engine does not start in approximately 30seconds, overcrank timer (OCT) will let current flow toovercrank indicating relay (OCIR). (OCIR) contactsclose and current flows to energize engine fault light(ENFL) and shutdown relay (SR).(SR) contacts open. This de-energizes run relay(RR) and magnetic switch (MS).When run relay (RR) is de-energized, contacts(RR2) close and contacts (RR1) open. (RR2) closedcompletes a circuit to shutoff solenoid (SS) untilpressure switch (PSW) opens. (RR1) open de-energizes arming relay (AR), dual speed switch (DSS)and overcrank timer (OCT).NOTE: Pressure switch (PSW) is not always closed when the engine cranks.Pressure caused by starting motor rotation of the engine is not always enough toclose (PSW).When magnetic switch (MS) is de-energized, (MS)contacts open. This de-energizes pinion solenoid (PS).(PS) contacts open and de-energize starting motor (SM).Overcrank indicating relay (OCIR) and engine faultlight (ENFL) will give light. To start the engine, do thesteps that follow:1. Turn engine control switch (ACS) to OFF or STOP.This will prevent the engine from starting if (ENFL) ispushed.2. Push and release engine fault light (ENFL). This willopen (ENFL) contacts for a moment and de-energize overcrank indicating relay (OCIR). (OCIR)contacts will open and de-energize engine fault light(ENFL) and shutoff relay (SR).3. Turn the engine control switch to AUTO. If theengine does not start in approximately 30 seconds,the overcrank indicating relay and engine fault lightwill give light.4. Turn engine control switch (ACS) to OFF or STOP.Correct the problem that caused the engine not tostart. Make reference to TROUBLESHOOTING.202
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