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

Страница: 18 / 100

Rules for Operation (Weather)
Stop Operation When Visibility Becomes
Poor
During bad weather such as rain, snow or fog, stop
operation and stow the machine. Wait until visibility
improves before resuming operation.
Stop Operation When Strong Winds are
Present
Under strong winds, a lifted load will start swaying,
posing a danger to working personnel and nearby
structures and also possibly damaging the boom or
overturning the machine.
The influence of cross wind on machine stability is
directly proportional to length of the boom and size
of the load.
When the maximum instantaneous (i.e. gust) wind
speed exceeds 10 m/sec, stop crane operation and
stow the boom.
When the boom is substantially extended or a large-
sized load is lifted, stop crane operation even if the
wind speed is below 10 m/sec if there is any possi-
ble danger.
The table below lists wind speed ranges and the
ground conditions for each range. Note that the
wind speeds in the table are those at a point 10 m
above open level ground.
Stop All Operation If There is Any
Likelihood of Lightning
Lightning can not only damage the machine but also
injure the operator and working personnel. If light-
ning is forecast or expected, stop operation, stow
the boom, and leave the machine.
If the machine is struck by lightning:
• Stay in the cab. Do not try to move out.
• Warn people around not to approach the machine.
• Afterward, inspect the entire crane carefully and
have any damaged parts repaired.
T019605E
A-17
Safety Rules Safety Rules
Wind speed (m/sec) Ground conditions
5.5
–
8.0
Dust is raised, paper whirls up,
and small branches sway.
8.0
–
10.8
Shrubs with leaves start swaying.
Wave crests are apparent in
ponds or swamps.
10.8
–
13.9
Tree branches move. Power lines
whistle. It is difficult to open an
umbrella.
13.9
–
17.2
Whole trees sway. It is difficult to
walk against the wind.
T00037
T00038