Komatsu PC450-8 Operation & Maintenance Manual page 429

HIGH REACH DEMOLITION EQUIPMENT 27M
q Do not use the jaw on one side only.
q Do not twist and crush at one blow.
q Do not pick up objects and raise or lower them.
q When gripping objects, do not use cylinder to shake them.
If there is external force bearing on the attachment (when hit-
ting against an object), the cylinder may come out and break,
so be extremely careful when operating.
WARNING
MACHINE OPERATIONS AND CONTROLS
INCORRECT
INCORRECT
INCORRECT
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