S0802190K
Page 12
Electrical System
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ENGINE STOP AND DERATING SYSTEM
OPERATION IN ENGINE STOP MODE
The engine stop is achieved by the "open" or "closed" operation of the fuel shutoff valve in fuel pump with
limited speed governor and duel lever control.
When the starter switch (5) is in the "ON" position, the fuel shutoff valve is opened due to the current
flowing from the "BR" terminal of the starter switch (5) the fuel shutoff valve (7) and fuel is supplied to the
cylinder. As a result the engine is being started.
When the starter switch (5) is in the "OFF" position during the engine running, because the current is not
applied to the fuel shutoff valve (7), it is closed and fuel is not supplied to the cylinder. As a result the
engine is stopped.
AHS0060L
Figure 7 ENGINE STOP CIRUIT
Reference
Number
Description
1 Battery
2 Battery Relay
3 Fusible Link
4 Circuit Breaker
5 Starter Switch
6 Fuse Box
7 Fuel Shot Off Valve
8 Diode
Reference
Number
Description
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