CONTROL PANEL (TYPE 2)
SYSTEMS OPERATION
Manual Shutdown
When engine control switch (ACS) is turned to the
STOP or OFF position, contacts (9 or 10) close and
contacts (2 and 3) are open. (9 or 10) closed completes
a circuit to rack solenoid (RS). The rack solenoid moves
the rack to the fuel OFF position. When contacts (2 and
3) are both open, no shutdown indicators can operate.
This also de-energizes run relay (RR) and arming relay
(AR). (RR2) opens, (RR1) closes. (AR1 and AR2)
open, (AR3 and AR4) close.
Pressure switch (PSW) will open when the engine
stops. This de-energizes water temperature gauge
(WTG), oil pressure gauge (OPG) and rack solenoid
(RS).
Diode (D1) releases any voltage in the coil of rack
solenoid (RS) when it is de-energized.
The system is ready to start if engine control switch
(ACS) is turned to MAN or AUTO.
CONTROL PANEL WITH ELECTRONIC SPEED SWITCH
STOP POSITION-MANUAL SHUTDOWN
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