2-M5
B7800HSD (SUPPLEMENT), WSM
ELECTRICAL SYSTEM
[1] ENGINE STARTING
The engine mounted on B7800 can be started when OPC switches such as clutch pedal switch, speed control
pedal switch, mid-PTO shift lever switch, PTO shift lever switch are “ON” at any operator’s seat positions as shown
on the table below.
[Engine Starting Condition]
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[2] ENGINE AUTOMATICALLY STOPPING: AUTOMATIC ENGINE STOP
Engine can be shut-off under the following two conditions since these conditions cause delay timer in the control
circuit of the controller to operate and it controls the fuel cut solenoid and fuel injection, and stops the engine. The
delay timer holds the fuel cut signal for about 1 second.
[Condition 1]
• While keeping the operator’s seat vacant, engaging speed control pedal, mid-PTO shift lever or rear-PTO shift
lever as shown on the table below.
[Condition 2]
• While keeping the seat reverse switch to “ON”, engaging speed control pedal or mid-PTO shift lever as shown on
the table below.
[Engine Automatically Stopping Condition]
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• Engine Revolution Automatically Recovering
- While engine revolution decreasing under the engine automatically stopping condition, since sitting on the
operator’s seat does not operate the delay timer, and fuel are delivered to the engine, and engine revolution are
automatically recovered.
• Rear-PTO Shift Lever
- Shifting rear-PTO shift lever does not cause engine stopping at seat tilting position.
Clutch Pedal Switch Speed Control Pedal Switch PTO Shift Lever Switch
ON ON ON
Seat
(Occupying)
Switch
Speed Control
Pedal Switch
Mid-PTO Shift
Lever Switch
PTO Shift Lever
Switch
Seat Reverse
Switch
condition
OFF ON ON OFF OFF Condition 1
OFF ON OFF OFF OFF Condition 1
OFF OFF ON or OFF ON or OFF OFF Condition 1
OFF ON OFF OFF ON Condition 2
OFF OFF ON or OFF ON or OFF ON Condition 2
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