9-S9
L2800, L3400, WSM
ELECTRICAL SYSTEM
(2) Main Switch
Connector Voltage
1. Measure the voltage with a voltmeter across the connector B
terminal and chassis.
2. If the voltage differs from the battery voltage (11 to 14 V), the
wiring harness is faulty.
W1022319
Main Switch Key at OFF Position
1. Turn the main switch off.
2. Measure the resistance with an ohmmeter across the B terminal
and the AC terminal, B terminal and ST terminal, and B terminal
and G terminal.
3. If infinity is not indicated, the contact of the main switch are faulty.
W1023217
Main Switch Key at ON Position
1. Turn the main switch on.
2. Measure the resistance with an ohmmeter across the B terminal
and the AC terminal.
3. If 0 ohm is not indicated, the B–AC contacts of the main switch
are faulty.
W1024636
Main Switch Key at START Position
1. Turn and hold the main switch key at the START position.
2. Measure the resistance with an ohmmeter across the B terminal
and the G terminal, and across the B terminal and the AC
terminal, and across the B terminal and the ST terminal.
3. If 0 ohm is not indicated, these contacts of the main switch are
faulty.
W1025150
Voltage
Connector B terminal
– Chassis
Approx. battery voltage
(a) From Battery Positive Terminal
Resistance
B terminal – AC terminal
Infinity
B terminal – ST terminal
Infinity
B terminal – G terminal
Infinity
Resistance
B terminal – AC terminal
0
Ω
Resistance
B terminal – G terminal
0
Ω
B terminal – ST terminal
0
Ω
B terminal – AC terminal
0
Ω
KiSC issued 08, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
