Engine System - Petrol (Gasoline)207Service Manual – H aram Captor IIThere are several conditions that will override the user’s engine speed request.• High pressure wash forces to run speed.• If the engine is at idle speed, the engine will be forced to the run speed when sweeping only or vacuumingonly. The force idle (neutral time-out) will return the engine to idle speed.• If the engine is at idle or run speed, the engine will be forced to maximum power speed when scrubbingonly or scrubbing and sweeping. The force idle (neutral time-out) will return the engine to idle speed.• If the override is run speed, the user can change between maximum power speed and run speed.• If the override condition goes away (e.g. sweep system turns off) and the user has not changed the enginemode, the engine is returned to the mode before the forced override.Normal Engine Shut OffWhen the key switch is shut off, the main machine controller stops sending 12v out the ignition requestcircuit. This removes the power source for the fuel pump that had been flowing through the “closed at rest”contacts of the high coolant temp shut down relay and from the ignition request relay, which turns it off.Turning off the ignition request relay causes ignition to be immediately lost and the engine to shut off. Italso turns off the gasoline shut off solenoid on the carburetorSeveral other events also take place. The ignition request power is lost from pin 1 of the Woodward actuator.When this happens, it switches off the path to ground from pin 9 to 5. De-energizing the ignition requestrelay also results in the loss of the engine run signal through the low oil pressure shut down relay closed atrest contacts, turning off the power relay and control relay.10AIGN. REQUEST15AMAIN5ACONTROLLERUNUSEDUNUSEDUNUSED UNUSED UNUSEDUNUSEDWOODWARDFUEL LOCK-OFFSOLENOIDN3 -0342 ORFUEL PUMPOIL SWITCH(OPEN FORPRESSURE)TEMP. SWITCH(OPEN FORNORMAL TEMP.)SHIELDED WIRERUN ENABLE SIGNALSHUTDOWN SIGNALCRANK REQUEST - BLU /PNK 16IGNITION REQUEST - PNK 16ENGINE RUN (12V INPUT) - GRY 16HIGH COOLANT TEMP. (GROUND INPUT) - GRN /YEL 16SPEED 2 (12V OUTPUT) - RED 16SPEED 3 (12V OUTPUT) - BLACK 16MAGNETICPICK-UP(Engine RPMSensor)STARTERBATTERYALTERNATORIGNITION POWERFOR IGNITERIGNITION CONNECTORFOR PLUGGING INTOKUBOTA IGNITION HARNESSKUBOTAFUELSOLENOIDEG551 -44790SPEED 2 (12V OUTPUT)GRY /BLU 16SPEED 3 (12V OUTPUT)GRY /ORG 16SHIELDED WIREWOODWARDAUTO CHOKESOLENOIDSA-4741BLU/LTGRN 16HIGH COOLANT TEMP.SHUTDOWN RELAY1 5 432BLK16CONTROLRELAY1 5 432BLK 16IGNITIONREQUEST RELAY1 5 432RED18POWERRELAY1 5 432RED 14LOW OIL PRESS.SHUTDOWNRELAY1 5 432AEES RN65127FUSE & RELAYBLOCK ASSYCRANKREQUESTRELAYBLK/ WHT 16RED/ GRN 16YEL 16SRPNMLFEDCBAKJHGSRPNMLFEDCBAKJHGCONNECTOR # 1PACKARD 16 PIN MALEP/N 15326863(TO NILFISK HARNESS)CONNECTOR #2PACKARD 16 PIN FEMALEP/N 15326868(TO NILFISK HARNESS)WOODWARDL-SERIESACTUATORDEUTSCHCONNECTORDT06 -12SARED 18TO PIN ABLK18BLK 18TO PIN BBLK/WHT 16BLK/WHT 16GRY /BLU 16GRY /ORG 16RED/BLK14RED/BLK 14RED/BLK 16LT BLU 16LT BLU16GRY/RED 16GRY /RED 16GRY /RED 16GRY 16GRY 16GRY 16GRY 16GRY16GRY 16GRN 16BLK 16RED/ GRN 16RED/ GRN 16PNK /GRN 16PNK /GRN16PNK /GRN 16PNK /BLU 16PNK /BLU 16PNK /BLU 16 PNK /BLU 16 PNK /BLU 16PNK /BLK 16PNK /BLU 16PUR 16PUR 16GRY /WHT 161 2 310k10k0.047μF0.047μFRED 16BLACK 16DT04 -6PFUEL SELECTCONNECTORCT00023DT06 -6S (BLACK)GASOLINE PLUGCT00024DT06 -6S (GREY)PROPANE PLUGFUEL PUMP (+) - PNK /YEL 16
