Tadano GT-550E-2, Руководство по эксплуатации и обслуживанию

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Move a Lifted Load Carefully
When the crane state comes near the full rating, the
AML gives an intermittent alarm. Operate the crane
more carefully and slow the load-moving speed.
Take best care for over-loading in boom-lowering
operation which enlarges the load radius.
Do Not Lift an Unknown Load
Attempting to uproot a garden tree or raise an object
buried or driven into the ground can severely over-
load various components of the machine, possibly
causing the machine to overturn or be damaged. Do
not attempt to pull up poles or piles driven into the
ground, trees or any objects buried or frozen in mud
or sand.
Only lift objects free from all restraining forces.
Avoid Overloading
A load below the rated lifting capacity can still
cause overloading of the crane if swaying occurs.
Do not trigger overloading while telescoping out or
lowering the boom. These actions increase the load
radius and are destabilizing.
When Overloading Occurs
When overloading occurs, never attempt to raise or
lower the boom rapidly. This situation is very dan-
gerous as the machine can readily overturn.
Immediately set the load on the ground by carefully
unwinding the wire rope off the winch drum.
Operate the Crane Carefully
Operating the controls too abruptly can result in an
accident: a swaying load can hit an object or dam-
age the machine.
Operate all control levers and pedals smoothly and
in a steady manner.
Do Not Make Inadvertent Swing
When the front jack is not employed, lifting capaci-
ties in the over-front area are inferior to those in the
over-rear and over-side areas. The crane may be
overturned if inadvertently swung to the over-front
area with a load lifted in the rear or side area.
Depending on boom length, boom angle, and outrig-
ger extension, even the unloaded crane may
overturn because of inadvertent swing.
Before operation, confirm the living capacity by the
rated lifting capacity table. If there is an inferior ca-
pacity area, place signal corns or ropes for swing
restriction to avoid swing into such a perilous area.
Swing the Crane Carefully
If the swing speed is too high, substantial centrifu-
gal force is applied to a load, resulting in an
increased load radius. As a result, the machine may
become overloaded and overturn.
Stopping a swing operation abruptly can cause a
load to sway posing a hazard to nearby personnel
and possibly leading to boom failure.
Swing all loads slowly. Carefully stop any swinging.
Be extremely cautious when working with an ex-
tended boom.
T019605E
A-11
Safety Rules Safety Rules
T01941
T00029