wsm Kubota L4100 Workshop Manual page 325

L4100, WSM
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 contacts of the main switch are
faulty.
B terminal –
AC terminal
B terminal –
Resistance
ST terminal
B terminal –
G terminal
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.
B terminal –
Resistance
AC terminal
Main Switch Key at START Position
1. Turn and hold the main switch key at the START position.
2. Measure the resistances 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.
B terminal –
G terminal
B terminal –
Resistance
ST terminal
B terminal –
AC terminal
Main Switch Key at PREHEAT Position
1. Turn and hold the main switch key at the PREHEAT 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.
3. If 0 ohm is not indicated, these contacts of the main switch are
faulty.
B terminal –
G terminal
Resistance
B terminal –
AC terminal
9-S8
ELECTRICAL SYSTEM
Infinity
Infinity
Infinity
9Y1210278ELS0026US0
0 Ω
9Y1210278ELS0027US0
0 Ω
0 Ω
0 Ω
9Y1210278ELS0028US0
0 Ω
0 Ω
9Y1210278ELS0029US0
(EU)
KiSC issued 08, 2012 A