Kubota KX080-4 Workshop Manual page 385

KX080-4, WSM
[B] Inspecting each Device Visually and Physically
[C] Testing with a Circuit Tester
(a) Meter panel connector
• If connectors (b) (c) are removed, the engine will start but the machine will not operate.
1. Voltage check
[Measurement Conditions]
1. Disconnect the engine oil pressure switch connector.
2. Key switch: ON
3. Measure the voltage based on the table below.
Mea-
sure- Connector Name (+ terminal side)
ment
(1) Engine oil pressure switch
Regular: 12V
Irregular: Large discrepancy from 12V
1. Causes when a break in wiring
[Test Conditions]
1. Key switch : OFF
2. The oil switch connector is disconnected.
3. There is a break somewhere in the wiring.
Pull on the harness and make sure the connector/harness does
not come off. (pull with a max of 3 kgf (30 N, 7 lbf) of force) If it
comes off, plug the connector back in securely and check the
operation of the oil switch again in the tester mode.
2. Causes when a short
[Test Conditions]
1. Key switch : OFF
2. The oil switch wire is pinched against or touching the body.
If the insulation is damaged, repair it properly and check the
operation of the oil switch again in the tester mode.
(b) Engine (solenoid)
connector
Pin No.
<1>
(c) Main (solenoid) connector
Connector Name (- terminal side)
Body GND
4-S54
ELECTRICAL SYSTEM
RY9212148ELS0075US0
RY9212148ELS0076US0
(d) Engine oil pressure switch
connector
RY9212148ELS0145US0
Pin No.
–
RY9212148ELS0146US0
KiSC issued 08, 2015 A