Kubota G21LD / G21HD Workshop Manual page 292

G21LD · G21HD, WSM
(B) Thermo Switch
(C) Fuel Pump
Connector Voltage
1. Disconnect the 1P connector from the thermo switch (1).
2. Turn the main switch key to the "ON" position, and measure the
voltage with a voltmeter between the connector terminal and the
chassis.
3. If a certain voltage is not indicated, the wiring harness or coolant
temperature gauge is faulty.
Voltage (Connector
Factory spec.
terminal - Chassis)
(1) Thermo Switch
Thermo Switch Continuity
1. Disconnect the 1P connector, and remove the thermo switch.
2. Using an ohmmeter, check for continuity between the switch
terminal and the chassis as shown in the figure.
3. If infinity is indicated at temperature over factory specifications,
the switch is faulty.
Working temperature Factory spec.
(A) ON
(B) OFF
Connector Voltage
1. Disconnect the 2P connector from the fuel pump.
2. Turn the main switch key to the "ON" position, and measure the
voltage with a voltmeter between the connector terminals.
3. If the voltage differs from the battery voltage, the wiring harness
or main switch is faulty.
Connector voltage Factory spec.
Fuel Pump Continuity
1. Disconnect the 2P connector from the fuel pump.
2. Check the continuity between the connector terminals with an
ohmmeter.
3. If it does not conduct, the fuel pump is faulty.
8-S21
ELECTRICAL SYSTEM
A certain voltage is
indicated
W1020374
120 to 126 °C
248.0 to 258.8 °F
(C) 116 °C (240.8 °F) or more
(D) 120 to 126 °C (248.0 to 258.8 °F)
W1020510
Approx. battery voltage
W1028106
W1028246
KiSC issued 08, 2007 A