Kubota D902-E4B - Page 12

9
Front Panel Inside
Printed Circuit Board (
Main
controller
)
Feature: Adjust voltage and control
engine rpm etc.
Auto Start Terminal
Transformer
Feature: Detect engine rpm. and
voltage.
Refer to “inspect the transformer”
on page 19 for inspection.
Speed Control Motor
Feature: control engine
speed coupled by the
governor lever and speed
adjusting rod.
To Check
1. Remove the coupler
and rod.
2. Supply a DC 12V
220mA from the battery
to the coupler, and the
motor would rotate one
direction.
3. Switch the positive (+)
and negative (-) wires
from the battery and
connect the wires to
the coupler in reverse
again. The motor shall
rotate other direction
Engine Stop Solenoid
Feature: supply or stop fuel.
Diode
Feature: Convert to AC to DC.
Refer to “inspect the diode” on
page 18 for inspection.
Generator
Refer to “trouble shooting”
on page 25 for inspection.
Emergency Relay