Kubota ,RCK60B-23BX, Руководство по ремонту

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5. Operator presence control (OPC) system
5.1 Electrical circuit of OPC timer
General electrical circuit of the tractor OPC timer is shown in the figure.
1. When sitting on the operator's seat with the main switch is in the
ON position, the battery voltage passes to the
seat switch and OPC timer (4), and keep the solenoid relay (8).
2. When standing up from the operator's seat, the circuit from the seat switch to the OPC timer is cut. However, if the
PTO lever (or the speed control pedal) are set at NEUTRAL position, the circuit from the battery to the solenoid
relay (8) is formed with the PTO switch (or HST switch).
3. When standing up from the operator's seat while shifting the levers, the circuit from the battery to the solenoid
relay (8) is cut, and the engine is stopped by function of the solenoid (9).
(1) Slow blow fuse
(2) Main switch
(3) Fuse (10 A) (4) OPC timer
(5) Seat switch (from seat switch
ON or OFF)
(6) Fuse (15 A)
(7) Battery (8) Engine stop solenoid timer re-
lay
(9) Engine stop solenoid
Seat switch
The seat switch has two positions.
When the operator's seat is occupied, the switch contact point is at
ON position. When the operator's seat is not
occupied, its contact point is at OFF position.
OPC timer
OPC timer is located electrically at between the seat switch (5) and the solenoid relay (8).
When the current supply from the seat switch (5) is cut, the OPC timer (4) adopted for the OPC system has kept the
state of
ON position for approximately one second.
MECHANISM
5. Operator presence control (OPC) system 8. ELECTRICAL SYSTEM
BX1880,BX2380,BX2680,RCK60B-23BX,RCK54-23BX,RCK48-18BX,RCK60D-26BX,RCK54D-26BX
8-11
KiSC issued 03, 2019 A