Investigate Job Site Beforehand - Hitachi ZAXIS 30U-5N Operator's Manual

Hydraulic excavator
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Investigate Job Site Beforehand

 When working at the edge of an excavation or on a road
shoulder, the machine could tip over due to collapse of the
ground, possibly resulting in serious injury or death.
 Investigate the configuration and ground conditions of
the job site beforehand to prevent the machine from
falling and to prevent the ground, stockpiles, or banks
from collapsing.
 Make a work plan. Use machines appropriate to the work
and job site.
 Reinforce ground, edges, and road shoulders as
necessary. Keep the machine well back from the edges of
excavations and road shoulders.
 When working on an incline or on a road shoulder,
employ a signal person as required.
 Never allow bystanders to enter the working area such as
swing radius or traveling range.
 When the footing is weak, reinforce the ground before
starting work.
 When working on frozen ground, be extremely alert. As
ambient temperatures rise, footing may become loose
and slippery.
 When operating the machine near open flame, sparks,
and/or dead grass, a fire may easily break out. Use special
care not to cause a fire.
 Make sure the work site ground has sufficient strength
to firmly support the machine. When working close to an
excavation or on road shoulders, operate the machine with
the tracks positioned perpendicular to the cliff face with
travel motors at the rear and with the blade at the front, so
that the machine can more easily evacuate if the cliff face
collapses.
 If working at the bottom of a cliff or on a high bank is
required, be sure to investigate the area first and confirm
that no danger of the cliff or bank collapsing exists. If any
possibility of cliff or bank collapsing exists, do not work in
that area.
 Soft ground may collapse when operating the machine on
it, possibly causing the machine to tip over. When working
on a soft ground is required, be sure to reinforce the ground
first using large pieces of steel plates strong enough and
firm to easily support the machine.
 Note that there is always a possibility of machine tipping
over when working on rough terrain or on slopes. Prevent
machine tipping over from occurring. Operate the machine
slowly to ensure safe operation.
SAFETY
S-10
SA-1293
M586-05-021

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