ELECTRICAL SYSTEM
B1830,B2230,B2530,B3030, WSM
9-S15
(7) OPC Controller
OPC Controller
1. Check the "Engine Starting Conditions" and "Automatic Engine
Stop Conditions". (See page 9-M9, 9-M10.)
2. If the tractor does not operate appropriately, check all parts
according to the "1.TROUBLESHOOTING" section.
3. If all parts except the OPC controller (1) is not defective, replace
the OPC controller (1).
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(8) Key Stop Solenoid
Connector Voltage
1. Disconnect the 2P connector from key stop solenoid.
2. Turn the main switch key to the "ON" position.
3. Measure the voltage with voltmeter between the terminal 1,
terminal 2 of wiring harness side and body.
4. If the voltage differs from the battery voltage, the wiring harness
or main switch is faulty.
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Key Stop Solenoid Test
1. Disconnect the lead from the engine stop solenoid after turning
the main switch off.
2. Connect jumper leads from the battery positive terminal to the
key stop solenoid terminal 1 and 2, then from the battery
negative terminal to the key stop solenoid body.
3. If the solenoid plunger is not attracted, the key stop solenoid is
faulty.
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(1) OPC Controller
Voltage
Terminal 1 – Body Approx. battery voltage
Terminal 2 – Body Approx. battery voltage
(1) Terminal 2 (2) Terminal 1
(1) Battery