Komatsu PC800-8 Operation & Maintenance Manual page 180

Hydraulic excavator
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MACHINE OPERATIONS AND CONTROLS
Operations Using Bucket Dropping Force
Do not use the dropping force of the machine for digging, or
use the dropping force of the bucket as s pickaxe, breaker, or
pile driver. This will drastically reduce the life of the machine.
Operations Using Machine Dropping Force
Do not use the dropping force of the machine for digging.
Digging Hard Rocky Ground
Do not attempt to directly excavate hard rocky ground with the work equipment. It is better to excavate it after
breaking up by some other means. This will not only save the machine from damage but will make for better econ-
omy.
Sudden Lever Shifting High Speed Travel
(1) Never carry out sudden lever shifting as this may cause
sudden starting.
(2) Avoid sudden lever shifting from forward (A) to reverse (B)
(or from reverse (B) to forward (A)).
(3) Avoid sudden lever shifting change such as sudden stop-
ping from near top speed (lever release operation).
3-116
OPERATION

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