Kubota WSM STa-30, Workshop Manual

Page: 253 / 359

7-S14
ST
α
-30 · ST
α
-35, WSM BI-SPEED TURN
Front Wheel Turning Angle Sensor
1. Separate the arm (6) from angle sensor lever (5).
2. Disconnect the connector (7).
3. Remove the sensor with sensor cover (8), then remove the
sensor from sensor cover (8).
4. Measure the angle sensor resistance between the terminal A (2)
and ground terminal C (4).
5. Set the test lead of tester between terminal B (3) and ground
terminal C (4).
Turn the sensor lever (5) slowly and check the changing of
resistance value.
6. If measurement is not within the factory specifications, replace it.
IMPORTANT
■
• If replaced a front wheel turning angle sensor, be sure to
operate the “Fine adjustment system”.
W1013508
Controller Unit
NOTE
■
• The controller used micro-computer, it is necessary a
special checking instrument to inspect it.
• Check the connector voltage and output voltage. If there
functions are in good condition, the controller unit may
damaged.
1) Connector Voltage
1. Disconnect the connector (1).
2. Turn the main switch to ON position. It is not necessary to run
the engine.
3. Measure the voltage with voltmeter across the terminal 4 (4) and
terminal 8 (3). If the voltage differs from the battery voltage,
check the fuse, wiring harness or ground condition.
W1015274
Wheel turning angle
sensor resistance
Factory
spec.
Terminal A –
Terminal C
4.32 to 6.48 k
Ω
Changing of resistance
value Terminal B –
Terminal C Changing with
smoothly
(1) Front Wheel Turning Angle Sensor
(2) Terminal A
(3) Terminal B
(4) Terminal C (Ground) (5) Lever
(6) Arm
(7) Connector
(8) Sensor Cover
Voltage
Terminal 4 and
Terminal 8 Battery voltage
(11 to 14 V)
(1) Connector
(2) Connector (Harness Side) (3) Terminal 4
(4) Terminal 8
KiSC issued 11, 2006 A