GENERAL PRECAUTIONS FOR SAFETY
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6.1.4 PRECAUTIONS WHEN USING
When long or heavy work equipment is installed, remember the following precautions. Before starting operations,
move the machine to a safe place and carry out a test operation to make sure that you fully understand the move-
ment, centre of gravity, and working range of the machine.
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Do not swing the work equipment if the machine is at an angle. If the work equipment is swung with the machine
at an angle, there is danger that the machine will tip over.
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Always maintain a safe distance from obstacles in the surrounding area when operating. If long work equipment
is installed, the working range becomes larger.
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If heavy work equipment is installed, pay careful attention to the following precautions.
Q The swing overrun (the distance the work equipment moves before completely stopping after the swing
brake is applied) will be greater. There is danger of hitting objects if the swing overrun is miscalculated, so
allow extra space to the swing position when swinging.
Q The hydraulic drift of the work equipment (the amount of the work equipment moves down under its own
weight when it is stopped in a raised position) also becomes greater. Do not stop the work equipment in a
raised position; always lower it to the ground.
Q Do not swing, lower, or stop the work equipment suddenly. There is danger that the machine may tip over.
Q Do not suddenly extend or retract the boom cylinder. The shock may cause the machine to tip over.
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When calculating the allowable mass of attachments, the mass of the bucket, see the explanation of lift-
ing capacity chart PC16R-3 (see "5.2.1 LIFTING CAPACITIES").
For an attachment not intended to bear a load, for example a breaker, it should not exceed the minimum
lift capacity of the machine as shown on the related lift capacity charts (see "5.2.1 LIFTING CAPACI-
TIES").
For attachment intended to bear a load, for example clamshell bucket or grapple, the combined mass of
the attachment plus load, should not exceed the maximum lift capacity figures as shown in the related
lift capacity charts (see "5.2.1 LIFTING CAPACITIES").
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