wsm L503 Workshop Manual page 478

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Glow Relay
This tractor has a system in which glow control is
performed through the IntelliPanel, and controls the coil
current that starts or stops the preheating circuit through
the electronic meter. The time required for preheating is
adjusted by means of the water temperature sensor.
(1) Glow Relay
Electronic Control Unit (ECU) : for GST Model
The ECU (1) functions to operate GST in accordance
with information coming from various sensors.
It has the role of controlling all the components while
sharing sensor information necessary for control and
control information with the IntelliPanel, and consists of
16 bit CPU and interface that corresponds to the signal
inlet and outlet.
(1) Electric Control Unit (ECU)
GST Valve (Solenoid Valves and Proportional
Reducing Valve) : for GST Model
This valve (1) includes the sensors and switches and
the associated necessary for GST control, solenoid that
actuates GST, shift pin, proportional reducing valve, and
others. It sends information from sensors and the
associated to ECU, and then a signal from ECU actuates
each solenoid valve.
(1) GST Valve Assembly
Shuttle Switch : for Manual Transmission and
GST Model
This switch (1) is mounted at the bottom of the shuttle
lever shaft (2) and is turned on when the position of F, N,
or R is detected through the movement of the sensor
lever, thereby outputting a 12 V signal to the IntelliPanel
and ECU.
It also serves as a safety switch when the engine is
started.
(1) Shuttle Switch
9-M14
ELECTRICAL SYSTEM
W1015142
W1015355
(2) Proportional Reducing Valve
W1015434
(2) Shuttle Lever Shaft
W1015505
KiSC issued 02, 2007 A