Precautions For Crusher Operation - Hitachi ZAXIS 450LC-3 Operator's Manual

PRECAUTIONS FOR CRUSHER OPERATION

Prevent machine tipping over and damage to the front
attachment. Observe the following precautions for crusher
operation.
d
WARNING: Machine stability is reduced as crusher is
much heavier than bucket.
When operating with a crusher, the machine is more
apt to tip over. Also, falling or flying objects may
hit the cab or other part of the machine. Observe
the following precautions and take any other
precautions necessary to prevent accidents and
machine damage from occurring.
• Do not allow the machine's weight to be supported by
the crusher or bucket cylinder with the bucket cylinder
fully extended or retracted. Doing so may damage the
front attachment. In particular, avoid doing so with the
bucket cylinder fully extended, as the front attachment
will be easily damaged.
Take care to prevent this from happening when
dismantling foundation structures using the crusher.
• Using the front attachment, do not raise the base
machine off the ground with the arm cylinder fully
extended. Failure to do so may result in damage to the
arm cylinder.
• When a heavyweight attachment such as a crusher is
installed, avoid quickly starting or stopping the front
attachment. Failure to do so may result in damage to the
front attachment.
• Do not attempt to perform crushing on either side of the
machine. Always perform crushing operations to the fore
or rear, parallel with the tracks. Otherwise, tipping over
may occur.
• Operate the hydraulic excavator carefully to avoid hitting
the boom, and cab.
OPERATING THE MACHINE
Watch Out!
Take care not to hit the
boom with the crusher
5-29
WRONG
M107-05-046
WRONG
M107-05-047
WRONG
M1G6-05-009