9-S20
L4400 , WSM
ELECTRICAL SYSTEM
(9) Combination Switch
1. Turn off the main switch (1).
2. Remove the panel board (2).
3. Perform the following checkings.
W1107080
Connector Voltage (Wire Harness Side)
1. Disconnect the connector 8P (1) from the combination switch.
2. Measure the voltage with a voltmeter across the connector B1
terminal and chassis when the main switch is OFF position.
3. If the voltage differs from the battery voltage, the wiring harness
is faulty.
4. Measure the voltage with a voltmeter across the connector B2
terminal and chassis when the main switch is ON position.
5. If the voltage differs from the battery voltage, check the wiring
harness and main switch.
W1108114
Head LIght Switch Continuity when Setting Switch at OFF
Position
1. Disconnect the connector 8P from the combination switch.
2. Set the light switch to the OFF position.
3. Measure the resistance with an ohmmeter across the B1 terminal
to the T terminal, the B1 terminal to the 1 terminal and the B1
terminal to the 2 terminal.
4. If infinity is not indicated, renew the switch.
W1109195
(1) Main Switch
(2) Panel Board
(3) Combination Switch
Voltage
Main switch at
OFF position
B1 Terminal -
Chassis
Battery voltage
Main switch at
ON position
B2 Terminal -
Chassis
(A) Connector 8P (Wire Harness Side)
Resistance (Switch at
OFF position)
B1 terminal -
T terminal
Infinity
B1 terminal -
1 terminal
B1 terminal -
2 terminal
(A) Combination Switch Side
Connector 8P
KiSC issued 07, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
