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EXPLANATION OF COMPONENTS
Use the rear working lamp switch to light up the rear working
lamps.
Position (A): The working lamps light up.
Position (B): The working lamps go out.
When position (A) is pressed, the pilot lamp lights up, and the
working lamps turn ON.
ECSS SWITCH
•
If the ECSS (Electronically Controlled Suspension System) switch is turned on during travel or with
the work equipment raised, the machine starts moving instantly. Take care.
•
If the machine is operated with the ECSS switch ON, the work equipment may start moving at the
moment when the ECSS is actuated. Take care.
•
Never turn on the ECSS switch during inspection or maintenance. There is a danger that the work
equipment may move.
NOTICE
•
Before operating the ECSS switch, be sure to stop the machine and lower the work equipment to
the ground.
•
When performing inspection or maintenance, lower the work equipment to the ground first, press
the ECSS switch to OFF position, then start the work.
•
Keep the ECSS switch turned off during leveling work.
The ECSS switch is used to turn on and off the ECSS.
Position (A): ON
The pilot lamp lights up and the ECSS operates.
Position (B): OFF
The ECSS does not operate.
REMARK
•
The ECSS absorbs the machine vibration during travel
with the hydraulic spring effect of the accumulator to attain
smooth high speed travel.
•
If the travel speed becomes 5 km/h or more, the ECSS op-
erates automatically. If the travel speed becomes 4 km/h or
less, the ECSS stops the operation automatically.
•
The effect of the ECSS decreases while the machine is in
the posture that the bucket is at TILT end and it touches
the stopper on the boom.
•
Slightly operate the bucket toward DUMP side to release it
from the stopper of the boom, and then the effect of the
ECSS increases.
•
To adjust the travel speed of when it is operated or not,
consult your Komatsu distributor.
3-98
k
k
WARNING
OPERATION
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