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HANDLE JOYSTICK STEERING SYSTEM
FUNCTION AND STRUCTURE OF JOYSTICK STEERING SYSTEM
Joystick steering system is a device to perform steering of
wheel loader by lever operation of joystick instead of steering
wheel. With joystick, steering operation can be performed by
light effort and small stroke which reduces steering operation.
Push the joystick activation switch, then steering operation with
joystick becomes effective.
The joystick pilot lamp on the left arm-rest lights up as long as
the joystick steering is selected.
On machines equipped with joystick steering system, you can
select of steering operation and transmission operation with the
joystick switch as shown below.
There are differences in function between the joystick steering lever operation and steering wheel operation.
Selection
Joystick activation switch
Steering
Transmission
Directional selec-
tion
Travel speed con-
trol function
PRECAUTIONS FOR HANDLING JOYSTICK STEERING SYSTEM
•
The joystick console must be at lower rear position during operation even when joystick steering is
not used. At this time, be sure to set the joystick ON/OFF switch to OFF position.
•
Never use joystick steering when traveling on public road.
•
Use steering wheel when the travel speed is 20 km/h or higher, or when traveling on public road.
When operating the machine by using the steering wheel, set the joystick ON/OFF switch to OFF
position.
•
When driving the machine by using joystick steering lever and when operating the transmission,
the machine may not go along with the operation. At that time, operate the steering wheel to move
the machine to a safe place and stop the machine, then turn the joystick ON/OFF switch to OFF po-
sition.
Then ask your Komatsu distributor for repair.
•
Never get on and operate the machine which is not repaired completely.
•
The steering wheel operation is always prior to the joystick steering.
•
When turning the machine, if you operate the steering wheel, the machine stops articulation at the position
where you stop turning the steering wheel. However, if you tilt the joystick and hold it at the position, the
machine articulates to the end, so be careful.
6-8
Joystick steering lever operation
Lights up
Both of joystick steering lever opera-
tion and steering wheel operation are
enabled. If both are operated simulta-
neously, steering wheel operation is
given priority.
Joystick directional selector switch
operation is enabled
When joystick ON/OFF switch
•
is turned ON, maximum speed
on a level ground is limited ap-
proximately to 18 km/h auto-
matically.
The machine may not travel at
•
4th speed.
k
k
WARNING
ATTACHMENTS AND OPTIONS
Steering wheel operation
Do not light
Only steering wheel operation is ena-
bled
Transmission directional lever opera-
tion is enabled
None
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