Precautions For Steering With Joystick; Operation Method Of Joystick Steering System - Komatsu WA380-6 Operation & Maintenance Manual

ATTACHMENTS, OPTIONS

PRECAUTIONS FOR STEERING WITH JOYSTICK

When using the joystick lever to operate the steering and transmission, if the operation of the machine does not match the
operation performed by the operator and the warning lamp lights up, do as follows.
Change to use of the steering wheel if necessary, apply the brakes immediately, turn the joystick ON/OFF switch OFF, operate
the steering wheel and the directional lever to move the machine to a safe place, then stop the machine.
Before starting the operation of the machine again, find out and repair the troubled part and confirm that the function is
normal. For the troubleshooting and repair, please contact your Komatsu distributor.
Never operate the machine before it is repaired completely.
When the joystick ON/OFF switch is turned OFF, if the directional selector switch and directional lever are not at
the N position, the neutral interlock circuit is actuated, the central warning lamp lights up, and the alarm buzzer
sounds.
Return the directional selector switch and directional lever to the N position.
If the electric circuit of the joystick steering system or transmission control system has trouble, the central caution
lamp (Red) on the left side of the machine monitor flashes to notify the trouble to the operator.
Since both steering system and transmission are set in the respective neutral positions, turn off the joystick
ON/OFF switch, then drive the machine with the steering wheel and the directional lever.

OPERATION METHOD OF JOYSTICK STEERING SYSTEM

It is dangerous to turn the machine suddenly at high speed, or to turn on steep hills. Do not operate the steering in such
conditions.
When turning, the articulation stops at the position where the steering wheel is turned to, but if the joystick is held in the tilted
position, the body will articulate fully.
The feeling when operating the steering with the joystick is different from when operating with the steering wheel, so be
extremely careful until you have become used to operating the joystick.
When the joystick ON/OFF switch is at the ON position, if the directional lever is operated to F or R, the machine will travel in
forward or reverse according to the operation of the directional lever, regardless of the position of the directional selecotr
switch on the head of the joystick lever. Priority is given to the operation of the directional lever, so be careful when operating.
When this is done, the central warning lamp lights up and the alarm buzzer sounds.
•
• Set the directional lever and directional selector switch on the head of the joystick to the N position.
Check the adjustment and operation before starting the engine. For details, see "CHECK BEFORE STARTING
ENGINE, ADJUST (PAGE 3-99)".
HANDLING JOYSTICK STEERING SYSTEM
WARNING
WARNING
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