Operation Manual

BX25. RCK54(P)-23BX. RCK60B-23BX, LA240, BT601, WSM
ELECTRICAL SYSTEM
[3] OPERATOR PRESENCE CONTROL (OPC)
The BX25 Tractor equips operator presence control (Ope) system which automatically stops the engine when
operator stands up from the operator's seat while shifting the PTO lever or the speed control pedal.
Tractor without the
ope timer stops quickly and tractor with the ope timer stops in approximately one second
when standing up from the seat.
AW
(4)
(5)
(7) -
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(1) Slow Blow Fuse
(2) Main Switch
(3) Fuse (10A)
(4) OPC Timer
(5) Seat SWitch (From Seat
Switch
ON or OFF)
(6) Fuse
(7) Battery
(8) Engine Stop Solenoid Timer
Relay
(9) Engine Stop Solenoid
W1025506
• Electrical Circuit (Tractor with OPC Timer)
General electrical circuit of the tractor ope timer is
shown
in the figure.
1. When sitting on the operator's seat in the state of the
main switch "ON", the battery voltage passes to the
seat switch and the
ope timer (4), and maintain the
solenoid relay (8).
2. When standing up from the operator's seat, the circuit
from the seat switch to the
ope 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).
• 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
ope 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 ope timer (4) adopted for the ope system has
maintained the state of "ON" position for approximately
one second.
W1025648
6-M6