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29. HANDLING JOYSTICK STEERING SYSTEM
To ensure that you operate the joystick steering safely and
efficiently, please read this section before using it.
29.1EXPLANATION OF COMPONENTS
1. Joystick: Converts the displacement of the steering lever
into voltage and controls steering according to
the operation of the F-N-R button.
2. Controller: Controls steering according to the electric sig-
nals received from the joystick and outputs the
control signals.
3. Electromagnetic proportional valve:
Converts the output of the controller.
4. Pilot pump: Supplies oil to the steering pilot circuit.
5. Stop valve: Cuts out the pilot oil pressure to reduce the end
shock and prevents the steering valve from re-
lieving at each steering end.
6. Steering valve: Controls the operation of the steering cylinder
with the pilot oil pressure.
7. Steering cylinder:
Articulates the vehicle to the right and left.
‡ The joystick steering system is a system to the wheel loader by
operating the joystick instead of the steering wheel.
The joystick is designed to reduce operator fatigue by allowing
light-touch steering operation with short movement of the joy-
stick.
‡ The joystick steering system consists of the electrical circuit
(joystick, controller, joystick ON/OFF switch), hydraulic circuit
(solenoid proportional valve, stop valve, steering valve), and
joystick console (joystick position adjustment, armrest position
adjustment).
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