Komatsu ecot3 Operation And Maintenance Manual page 217

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
economy.
Sudden Lever or Pedal Shifting High Speed Travel
(1) Do not operate the levers and pedals suddenly or take any
other action to move the machine quickly.
(2) Do not operate the levers or pedals suddenly from FORWARD
(A) to REVERSE (B) (or from REVERSE (B) to FORWARD (A)).
(3) Do not operate the levers or pedals suddenly (do not release
them suddenly) to stop the machine when traveling at high
speed.
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OPERATION