Kubota D902-E4B, Service Manual, Page: 23 / 32

20
(10)
Inspect the Breaker
(11)
Inspect The Voltage Regulator
1. Measure the resistance among the leads for “yellow and yellow/red” and “yellow and
yellow/green” by the ohm tester. (Reading may not be accurate when the low resistance
tester is used.)
2. The reading shall be 0~10kΩ when the voltage regulator knob turns.
1. Shut off engine. Turn the main circuit
breaker OFF .
2. Check the resistance with a
ohmmeter between upper terminal
and lower terminal of;
Upper Terminal Lower Terminal
U U
W W
The ohmmeter should display the symbol
of infinity,
∞
, or similar per the
ohmmeter that you may use.
1. Shut off engine. Turn the main circuit
breaker ON .
2. Check the resistance with a
ohmmeter between upper terminal
and lower terminal of;
Upper Terminal Lower Terminal
U U
W W
The ohmmeter should display approx. 1
ohms.
U W