Installation Instructions

ManualsBrandsKubota ManualsMiscellaneousB2400

9

ELECTRICAL

SYSTEM

From

Temperature

Gauge

81700·82100·82400 WSM,11770

Coolant Temperature Sensor

1)

Lead

Terminal Voltage

1.

Disconnect the lead from the coolant temperatu

re

sensor

after

turning

the main switch

off.

2.

Turn

the

main switch on and measure the

voltage

with

a

voltmeter

across

the lead terminal and the

chassis.

3.

If

the voltage differs from

the

battery voltage,

the

wi

ri

ng

harness, fuse

or

coolant temperature gauge

is

faulty.

0321F314

Voltage

Lead

terminal-

Chassis

Approx. battery voltage

(4)

GND

Terminal (Temperature)

(5)

IGN

Terminal (Temperature)

(6)

U Terminal (Temperature)

0321F315

2)

Sensor Continuity

1.

Measure the resistances

with

an

ohmmeter

across

the

sensor

terminal and the

chassis.

2.

If

the reference value

is

not

indicated,

the

sensor

is

faulty.

Resistance

Approx. 12.2 ohms

at

130°C

(266°F)

(Sensor terminal

Reference Approx. 23.6 ohms

at

105°C

(221°F)

-Chassis

value Approx. 51.9 ohms

at

BO°C

(176°F)

Approx. 153.9 ohms

at

50°C

(122°F)

(1) Coolant Temperature Sensor

Fuel

Gauge and Coolant Temperature Gauge Continuity

1.

Remove

the panel board from

the

tractor.

2.

Check

the

continuity

with

an

ohmmeter

across

the

U

terminal

(1)

and

IGN

terminal

(2)

and

across

the U terminal

(1)

and

GND

terminal

(3).

3.

If

infinity

is

indicated, the fuel gauge

is

faulty.

4.

Check

the

continuity

with

an

ohmmeter

across

the

U

terminal

(6)

and

IGN

terminal

(5)

and

across

the U terminal

(6)

and

GND

terminal

(4).

5.

If

infinity

is

indicated,

the

coolant

temperature

gauge

is

faulty.

(1)

U Terminal (Fuel)

(2)

IGN

Terminal (Fuel)

(3)

GND

Terminal (Fuel)

9-526