Kubota L4400 User Manual

9-M3
L4400 , WSM
ELECTRICAL SYSTEM
2. OPERATOR PRESENCE CONTROL
This is tractor is equipped with Operator Presence Control (OPC) system which automatically stops the engine
when operator gets up from the seat while shifting the PTO lever (PTO clutch control lever) or the range gear shift
lever (Lo-R, Hi).
The system is controlled by a seat switch (6), OPC timer (8), key stop solenoid relay (9), key stop solenoid (10),
PTO switch (5) and range gear shift switch (7).
[1] ELECTRIC CIRCUIT
When sitting on the seat, the engine in the state of running, the PTO lever (PTO clutch control lever) in "OFF"
position and the range gear shift lever (Lo-R, Hi) in “Neutral” position, the current flow is shown in Figure below.
NOTE■
• PTO switch is "ON" when PTO lever in "OFF" position.
• Range gear shift switch is "ON" when range gear shift lever in "Neutral" position.
(1) Battery
(2) Main Switch
(3) Starter Relay
(4) Starter
(5) PTO Switch (2 pieces)
(6) Seat Switch
(7) Range Gear Shift Switch
(2 pieces)
(8) OPC Timer
(9) Key Stop Solenoid Relay
(10) Key Stop Solenoid
a: When operator sits on the
seat.
b: When operator does not sit
on the seat (When operator
gets up from the seat)
c: When seat is tilted forward
KiSC issued 07, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland

Kubota L4400 Specifications

General

Engine Type	Diesel
Cylinders	4
Transmission Type	Gear
Number of Speeds	8 forward and 4 reverse
Hydraulic System	Open center
Fuel Capacity	45 L
3-Point Hitch	Category I
Engine Power	45 HP