Engine Rotation Sensor (Cabin Model Only) - Kubota WSM B2050 Workshop Manual

B2050, B2350, B2650, B3150, WSM

(8) Engine Rotation Sensor (CABIN Model Only)

Connector Voltage
1. Disconnect the connector, and turn the key switch "ON"
position.
2. Measure the voltage with a voltmeter across the terminals
shown in the table below.
3. If the reference value is not indicated as shown in the table
below, check the relating electric circuit.
Key switch at
Voltage
"ON"
(1) Engine Rotation Sensor
Sensor Actuation Test
1. Disconnect the connector of the engine rotation sensor.
2. Connect a connector of the rotation sensor signal interface unit
(2) to the engine rotation sensor (1).
3. Connect each clip of the rotation sensor signal interface unit (2)
to the same test lead color of the circuit tester (3).
4. Switch on the rotation sensor signal interface unit (2).
5. Turn the flywheel and make sure that the voltage of the engine
speed sensor goes from 0 → 5 V or 5 → 0 V.
6. If there is no change in the voltage, replace the engine rotation
sensor.
(1) Engine Rotation Sensor
(2) Rotation Sensor Signal Interface
Unit
9-S38
ELECTRICAL SYSTEM
Terminal 1 – Approx. battery
chassis voltage
Terminal 2 –
Approx. 5 V
chassis
(2) Connector (Harness Side)
9Y1210982ELS0072US0
(3) Circuit Tester
9Y1210982ELS0073US0
KiSC issued 03, 2014 A