5-3
PC210/240-ENG
26. GENERAL PRECAUTIONS
26.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS
WARNING
Long work equipment reduces the stability of the chassis, so if the swing is operated on a slope, or
when going down a steep hill, the machine may lose its balance and overturn. The following opera-
tions are particularly dangerous, so never operate the machine in these ways.
• If heavy work equipment is installed, the overrun of the swing becomes greater (the distance from
the point where the operator operates the control levers to stop the swing to the point where the
upper structure stops completely), so there is danger of mistaking the distance and hitting some
thing.
Always operate so that there is an ample margin to the stopping point.
Furthermore, the hydraulic drift also becomes larger when the work equipment is stopped in mid-
air, it will gradually move down under its own weight).
• Always follow the correct procedure when installing the boom and arm. If the correct procedure is
not followed, this may lead to serious damage or injury, so please consult your Komatsu
distributor before carrying out installation.
If long work equipment is installed, the working range will suddenly become larger, so there is
danger of mistaking the distance and hitting something.
Always operate the work equipment so that there is ample space from any obstacles in the area
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