Crusher Operation (Optional) - Hitachi ZX27U-2 Operator's Manual

CRUSHER OPERATION (OPTIONAL)

Before installing a hydraulic crusher on the machine,
machine stability, and the hydraulic pressure and flow
rate to operate the hydraulic crusher must be checked.
Consult your authorized dealer for selection of the hy-
draulic crusher model to be installed. Refer to the
Crusher Operation Manual for operation of the hydraulic
crusher. Observe the following instructions to prevent
the base machine and the hydraulic crusher from being
damaged.
Precautions for Hydraulic Crusher Operation
WARNING: When the hydraulic crusher is used in
demolition work, machine stability is reduced as
the crusher attachment is much heavier than the
bucket. In addition, soil, broken pieces of rock or
metals may be scattered during crusher opera-
tion, potentially creating a hazardous situation.
Take protective measures to prevent the machine
tipping over and/or the scattering of hard materi-
als and observe the precautions described below
to ensure safe operation.
•
Do not raise the base machine off the ground with the
bucket cylinder fully retracted or extended. Damage to
the front attachment may result. In particular, avoid
operating the machine with the bucket cylinder fully
extended. The bucket cylinder may easily become
damaged under this condition. Use extra care to pre-
vent the bucket cylinder from being damaged during
demolition work of structure foundations.
•
Operate the crusher over the front or rear side of the
machine. Operating the breaker over the side of the
machine will reduce the machine stability, possibly
resulting in the machine tipping over.
OPERATING THE MACHINE
5-22
M107-05-046
M107-05-047