Komatsu 37BF50111, Operation & Maintenance Manual

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INSTRUMENTS AND CONTROLS
66
10 - WORKING LIGHT WARNING LIGHT
It comes on when the working lights are turned on with the
switch positioned on the dashboard (see "3.3.3 pos. 5 -
WORKING LIGHT SWITCH").
11 - SAFETY DEVICE FUNCTIONALITY CONTROL UNIT
This control unit is positioned on the dashboard and checks
the condition of the safety devices installed on the machine.
The signals are shown on the display by the coming on and
going out of the warning lights.
The functions are the following:
A - RED WARNING LIGHT
LED off - This means that all the safety devices are on
and therefore all the machine functions are normal (the
solenoid valve ensures the lifting of the work equipment
and the machine travel).
LED on - This means that at least one safety function is
lacking; in this case the solenoid valve is closed and does
not permit the lifting and therefore the use of the work
equipment and the machine travel.
B - GREEN WARNING LIGHT
LED on - This means that the operator is correctly seated
in the driving position and that the operator presence sen-
sor is on.
LED off - (With the red warning light coming on at the
same time) This means that the operator is standing or
that he is not inside the cab.
NOTE
q
The operator presence signal (seat) starts the emergency
condition with a delay of 1.5 seconds.
With this solution the operatorís jerks (especially when work-
ing on uneven ground) are sensed without signalling repeat-
ed emergencies.
RWA07180
RWA31910
C
E
A
B C
RWA22370
A
RWA22380
B