Avoid Abusive Operation; Avoid Excavation Using Upperstructure And/Or Boom Swing Power - Hitachi Zaxis 33U-5A Operator's Manual

OPERATING THE MACHINE

Avoid Abusive Operation

Do not travel while thrusting the bucket teeth into the ground
and do not raise the rear of the machine to use the machine's
weight as additional digging force. Severe machine damage
may result.
MZX5-05-002
Avoid Excavation Using Upperstructure and/or
Boom Swing Power
Never attempt to move rocks or excavate a cliff face by hitting
the bucket using upperstructure and/or boom swing power.
Damage to the front attachment, or shortening of the service
life of the swing systems may result.
5-15