3-M11
L3130 · L3430 · L3830 · L4630 · L5030, WSM
TRANSMISSION
[4] ELECTRICAL CONTROL SYSTEM
• Only the electrical control system concerning the GST operation has been described in this section.
Therefore, refer to “ELECTRICAL SYSTEM” section (Section 9) for a general electrical control system.
(1) Construction and Function of Components
The electric control of the GST system is composed by parts shown in the above figure.
■ Electric Control Unit (ECU)
This unit incorporates an electronic circuit for various
control of GST system and it is equipped on the left under
of the platform.
The ECU processes and judges the input data from
various switches and sensors and send the signal to
various solenoid valves (solenoid valves and
proportional reducing valve). At the same time, it also
sends the communication data to display the selected-
speed and several messages in electronic instrument
panel.
W1015703
(1) Traveling Speed Sensor
(2) Engine Tachometer Sensor
(3) GST Lever Sensor
(4) Shuttle Switch
(5) Pressure Switch
(6) Oil Temperature Sensor
(7) GST Valve
(Solenoid Valve and
Proportional Reducing Valve)
(8) Electric Control Unit (ECU)
(9) Electronic Instrument Panel
(10) Battery
(1) Electric Control Unit
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