Komatsu WA500-6H, Operation & Maintenance Manual

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Attachments, Options 6.2 Joystick steering system
WA500-6H – VEAM430100
6-41
6.2.4 Operation method of joystick steering system
WARNING
z 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.
z 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.
z 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.
z
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 direc-
tional lever, regardless of the position of the directional sele-
cotr 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 (3-90)".
1. Before starting the engine, check the operation of the joy-
stick lever steering, check that the transmission directional
lever is at N, and that the surrounding area is safe.
REMARK
Under the following conditions, a warning may be given when
the engine is started.
z
If the FNR switch on the joystick is at F or R, the joystick pilot
lamp flashes, the central warning lamp lights up, and the
alarm buzzer sounds.
In this condition, the engine will not start, so set the FNR
switch to N.
z
If the joystick is not at the N position, the joystick pilot lamp
flashes, the central warning lamp lights up, and the alarm
buzzer sounds.
In this condition, the engine will not start, so set the joystick
to the N position.
GK043144
F
N
R