9-S14
L4400 , WSM
ELECTRICAL SYSTEM
Checking Seat Switch
1. Remove the seat.
2. Disconnect the seat switch connector (3).
3. Change the sensor bar angle (1) and measure the resistance
between connector terminals, referring to the table below.
4. If resistance is not correct, switch is faulty.
W1042630
Checking OPC Timer
1. Remove the timer. (OPC timer is located behind the panel.)
2. Connect jumper leads across the battery positive terminal and
the timer 3 terminal, and across the battery positive terminal and
the timer 4 terminal.
3. Connect jumper leads across the battery negative terminal and
the timer 2 terminal, and across the battery negative terminal and
the bulb terminal.
4. Connect jumper leads across the timer 1 terminal and the bulb
terminal.
5. The bulb lights up when disconnecting a jumper lead from the 3
terminal 0.7 to 1.3 seconds late, the timer is proper.
W1081012
Sensor bar angle
Measuring terminal
Resistance
Approx 18
°
(Angle A)
a - c
0
Ω
a - b, b - c
Infinity
Approx 25
°
(Angle B)
a - b, a - c, b - c
Infinity
Approx 5
°
(Angle C)
b - c
0
Ω
a - b, a - c
Infinity
(1) Sensor Bar
(2) Seat Switch
(3) Seat Switch Connector
(4) Seat
D : Seat Suspension Plate Line
(Reference Line)
(1) OPC Timer
(2) Load (Lamp)
(3) Battery (12 V)
A : OPC Timer Relay Side Connector
4A
KiSC issued 07, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
