Komatsu PC118MR-8 Operation And Maintenance Manual page 393

OPTIONAL EQUIPMENT
q Always maintain a safe distance from obstacles in the surrounding area when operating. If long work
equipment is installed, the working range becomes larger.
q 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 lower, swing, 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.
When calculating the allowable mass of attachments, the mass of the bucket, see the explanation of lift-
ing capacity chart PC118MR-8 ("LIFTING CAPACITIES TABLES (5-5)").

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 "LIFTING CAPACITIES
TABLES (5-5)").
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 "LIFTING CAPACITIES TABLES (5-5)").
WARNING
WEAM014802
GENERAL PRECAUTIONS FOR SAFETY
6-3