Glow Plug; Engine Stop Solenoid - Kubota D1503-M-DI Workshop Manual

03-M-DI Series, WSM

(3) Glow Plug

(4) Engine Stop Solenoid

Lead Terminal Voltage
1. Disconnect the wiring lead (1) from the glow plug (2) after turning
the main switch off.
2. Turn the main switch key to the "PREHEAT" position, and
measure the voltage between the lead terminal and the chassis.
3. Turn the main switch key to the "START" position, and measure
the voltage with a voltmeter between the lead terminal and the
chassis.
4. If the voltage at either position differs from the battery voltage, the
wiring harness or main switch is faulty.
Main switch key at
Voltage
"PREHEAT"
(Lead terminal – Engine
Main switch key at
body)
"START"
(1) Wiring Lead (Positive)
Glow Plug Continuity
1. Disconnect the lead from the glow plugs.
2. Measure the resistance with an ohmmeter between the glow plug
terminal and the engine body.
3. If 0 ohm is indicated, the screw at the tip of the glow plug and the
housing are short-circuited.
4. If the factory specification is not indicated, the glow plug is faulty.
Glow plug resistance Factory spec.
Connector Voltage
1. Disconnect the 2P connector from engine stop solenoid.
2. Turn the main switch key to the "ON" position.
3. Measure the voltage with voltmeter between the terminal 1 (1)
(Black / White), terminal 2 (2) (White / Black) and Body.
4. If the voltage differs from the battery voltage, the wiring harness
or main switch is faulty.
Terminal 1 – Body
Voltage
Terminal 2 – Body
(1) Terminal 1
Stop Solenoid Coil
1. Disconnect the 2P connector from engine stop solenoid.
2. Measure the resistance with an ohmmeter between the terminal
1 (1), terminal 2 (2) and body.
3. If resistance differs from the factory specification, the coil is
faulty.
Terminal 1 – Body
Resistance
Terminal 2 – Body
(1) Terminal 1 (Pulling Coil)
S-91
DIESEL ENGINE
Approx. battery voltage
Approx. battery voltage
(2) Glow Plug
W1014913
Approx. 1.0 Ω
W1015115
Approx. battery voltage
(2) Terminal 2
W1015556
Approx. 0.38 Ω
Approx. 15.58 Ω
(2) Terminal 2 (Holding Coil)
W1015848
KiSC issued 10, 2009 A