Komatsu WA250-5 Service Manual

.
OPERATION
OPERATION
TURNING
Operating
the
steering
wheel
suddenly
at
high
speed
or
operating
the
steering
wheel
on
steep
slopes
is
dangerous.
Do
not
operate
the
steering
wheel
in
such
situations.
If
the
engine
stops
when
the
machine
is
traveling,
the
steering
becomes
heavy,
so
never
stop
the
engine
while
traveling.
It
is
particularly
dangerous
if
the
engine
stops
when
the
machine
is
traveling
on
slopes,
so
never
let
the
engine
stop
when
traveling
on
slopes.
If
the
engine
stops,
stop
the
machine
immediately
at
a
safe
place.
When traveling, use steering wheel (1) to turn the machine.
With this machine, the front frame is joined to the rear frame at the
center of the machine by the center pin. The front and rear frames
bend at this point, and the rear wheels follow in the same track as
the front wheels when turning.
Turn the steering wheel lightly to follow the machine as it turns.
NOTICE
When
the
steering
wheel
is
turned
fully,
if
it
reaches
the
end
of
its
stroke,
do
not
try
to
turn
it
further.
Check
that
there
is
a
play
of
50
to
100
mm
(2.0
to
3.9
in)
in
the
steering
wheel.
Check
also
that
the
steering
works
properly.
If
any
abnormality
is
found,
please
contact
your
Komatsu
distributor
for
inspection.
EMERGENCY STEERING
(If equipped)
Never
actuate
the
emergency
steering
except
during
emergencies
or
when
checking
the
function.
Emergency steering pilot lamp (green) (2) lights up to inform the
operator that the emergency steering system is normal.
The emergency steering system is provided to enable the machine to be steered under the following conditions.
The steering oil pressure is low or there is no pressure.
(When the engine has stopped or there is a failure in the steering oil pressure pump, etc.)
When the emergency steering system detects lack of oil pressure in the steering system, steering oil pressure
caution lamp (red) (3) and central warning lamp (4) light up, and the alarm buzzer sounds intermittently.
Steering oil pressure caution lamp (red) (3) lights up to inform the operator that there is a failure in the steering
system.
If steering oil pressure caution lamp (red) (3) lights up, move the machine immediately to a safe place and stop it.
Locate the cause and do not operate the machine until it has been repaired.
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Komatsu WA250-5 Specifications

General

Brand	Komatsu
Model	WA250-5
Category	Front End Loaders
Language	English