Prohibited Operations - Komatsu PC450-8 Operation & Maintenance Manual

OPERATION

PROHIBITED OPERATIONS

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If it is necessary to operate the work equipment control lever when the machine is traveling, stop the
machine, then operate the control lever.
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If any lever is operated when the auto-deceleration is being actuated, the engine speed will suddenly
increase, so be careful when operating.
Operations Using Swing Force
Do not use the swing force to compact soil or break objects.
This is not only dangerous, but will also drastically reduce the
life of the machine.
Operations Using Travel Force
Do not dig the bucket into the ground and use the travel force
to carry out excavation. This will damage the machine or work
equipment.
Prohibited to Extend Hydraulic Cylinder to End of Stroke
If the work equipment is used with the cylinder rod operated to
its stroke end, and given impact by some external force, the
hydraulic cylinders will be damaged, causing personal injury.
Avoid operations with the hydraulic cylinder fully retracted or
fully extended.
MACHINE OPERATIONS AND CONTROLS
WARNING
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