Komatsu PC350LC-8, Operation & Maintenance Manual

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GENERAL PRECAUTIONS FOR SAFETY
ATTACHMENTS AND OPTIONS
6-2
GENERAL PRECAUTIONS FOR SAFETY 6
When installing attachments or options to the machine, it is necessary to pay attention to safety. Please obey the
following precautions strictly when selecting, installing, or using attachments or options.
PRECAUTIONS WHEN SELECTING 6
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Please consult your Komatsu distributor before installing attachments or options to the machine. Depending
on the type of attachment or option, it may be necessary to install a front guard, overhead guard, or other
safety structure to the machine. There may also be problems of the attachment or option hitting the operator's
cab.
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Install only attachments or options authorized by Komatsu. Komatsu cannot accept any responsibility for any
accident, damage, or failure caused by the use of attachments or options not authorized by Komatsu.
READ THE INSTRUCTION MANUAL THOROUGHLY 6
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Before installing or using any attachment or option, make sure that you thoroughly read and understand the
instruction manuals for the machine and the attachment or option.
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If you lose the instruction manual or it is damaged, always obtain an new copy from the attachment manufac-
turer or your Komatsu distributor.
PRECAUTIONS WHEN REMOVING OR INSTALLING 6
When removing or installing the attachment or option, obey the following precautions, and take care to ensure
safety during the operation.
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Carry out the removal and installation operation on a flat, firm ground surface.
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When the operation is carried out by two or more workers, choose the leader and follow his instructions.
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Use a crane when handling heavy objects (more than 25 kg). (The crane must be operated by a qualified
operator.)
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Never go under a load raised by the crane.
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Do not carry out operations with the load kept raised by the crane. Always use a stand to prevent the load
from falling.
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When removing a heavy part, consider the balance after it is removed. To prevent the machine from tipping
over, set a support in position if necessary before removing the part.
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Before installing or after removing the attachment or option, set it in a stable condition to prevent it from falling
over.
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For details of the removal or installation operation, please consult your Komatsu distributor.
PRECAUTIONS WHEN USING 6
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, center 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 equip-
ment is installed, the working range becomes larger.
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If heavy work equipment is installed, pay careful attention to the following precautions.
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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.
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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.
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Do not swing, lower, or stop the work equipment suddenly. There is danger that the machine may tip over.
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Do not suddenly extend or retract the boom cylinder. The shock may cause the machine to tip over.