Kubota M5640SU - Checking Grounding Wires; Connector; Main Switch

ELECTRICAL SYSTEM
M5640SU, M5640DT-SU, WSM
9-S11
(2) Checking Grounding Wires
Grounding Wire
1. Check the whether the grounding wire (1) is connected securely
to the tractor chassis.
2. If the grounding wire is broken or disconnected, replace it.
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(3) Connector
Checking Connector
1. When inspect the circuit line, check the related connectors.
2. Disconnect the connectors and check their terminals for
contamination and deformation.
3. Check to see that cable does not broken or terminals are not
shelled off.
4. If any defective parts are found, repair or replace them.
IMPORTANT
• Connect connector surely after checked.
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[2] MAIN SWITCH
Main Switch
1. Remove the rear bonnet (1), refer to "[1] CLUTCH PEDAL" at
"2. CLUTCH" section.
2. Disconnect the meter panel and the main switch connectors
after turning the main switch off.
3. Perform the following checking.
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Connector Voltage
1. Measure the voltage with a voltmeter across the connector
terminal B and chassis.
2. If the voltage differs from the battery voltage (11 to 14 V), the
wiring harness is faulty.
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(1) Grounding Wire
(1) Rear Bonnet (2) Main Switch
Voltage
Connector terminal B
– Chassis
Approx. battery voltage
(1) Main Switch (a) From Battery Positive Terminal
KiSC issued 07, 2009 A