Fuel Quantity; Coolant Temperature - Kubota WSM B1710 Workshop Manual

B1710 · B2110 · B2410 · B2710, WSM

[1] FUEL QUANTITY

[2] COOLANT TEMPERATURE

Fuel Level Sensor
The remaining fuel quantity is detected by the fuel
level sensor installed in the fuel tank and indicated on the
fuel gauge. For detection, a float and a resistor are used.
As the float (1) lowers, the resistance of the variable
resistor (2) varies. The relation between the amount of
fuel and the resistance is as follows.
F
1 to 5 Ω
(1) Float
Coolant Temperature Sensor
The coolant temperature sensor is installed to the
cylinder head of engine, and its tip is in touch with the
coolant. It contains a thermistor (4) whose electrical
resistance decreases as the temperature increases.
Current varies
temperature, and the increases or decreases in the
current move the pointer of gauge.
Characteristics of Thermistor
Temperature
50 °C (122 °F)
80 °C (176 °F)
120 °C (248 °F)
170 °C (338 °F)
(1) Terminal
(2) Insulator
9-M16
ELECTRICAL SYSTEM
1/2 E
27.5 to 37.5 Ω 103 to 117 Ω
(2) Variable Resistor
W10165250
with changes in the
Resistance
148.8 Ω
50.3 Ω
16.0 Ω
5.6 Ω
(3) Body
(4) Thermistor
W10167200
KiSC issued 11, 2006 A
coolant