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3.19 PERFORM TRAVELLING WITH HOISTED LOAD
3.19.1 PRECAUTIONS FOR TRAVELLING WITH HOISTED LOAD
• Travel with a lifted load is in principle prohibited because it is very unstable and involves
danger.
When there is no alternative but to perform travelling with a hoisted load, strictly observe the
ranges described in “List of gross rated loads for travelling hoist” and the postures for
travelling with a hoisted load.
• “List of gross rated loads for travelling hoist” shows the values of load that the machine can
move when travelling on level, solid ground, after having performed static hoisting.
Travelling with a hoisted load should not be attempted on slopes or soft ground.
• Do not operate the crane when travelling with a hoisted load.
• Check the condition of the ground, the surroundings and the working situation before
travelling.
• Do not increase the speed or use the accelerator pedal when travelling.
• Slow the engine speed, hold the load near the ground and travel slowly so that the load does
not sway.
• Swaying loads are dangerous so do not start, stop, or change course suddenly.
• Unless these precautions in travelling hoist are observed, serious physical injury may be
caused.
GROSS RATED LOAD FOR TRAVELLING HOIST AND PRECAUTIONS IN WORKING RANGE
When performing travelling hoist, be sure to observe strictly the gross rated load shown in the table below.
Item Remarks
Boom length
5.0 m (two stage boom) or less
Rated total load
See the list of gross rated load for
travelling hoist.
PRECAUTIONS IN WORK PLACE
As there is danger of the machine tipping over on the following grounds and places, do not approach them
or perform travelling hoist.
Check the condition of the road surface and ground. Arrange a traffic guide in a dangerous place or a
place of poor visibility.
• Soft ground such as a slope and marsh, ground with many obstacles, bumpy ground such as a riverbed,
ground with difference in level
• Near deep grooves and road shoulder
• In water and shallows, snowy area, frozen road surface
PRECAUTIONS IN OPERATION
Never perform the following travelling operation because doing so may cause the machine to tip over.
When operating, be sure to sit on the operator’s seat and carefully perform the operation during travelling
hoist.
• Do no hold the load at a high position. Hold it near the ground so that the load does not sway.
• Do not start and stop suddenly, and do not make a sudden direction change. Doing so is dangerous
because the load sways.
Do not use the speed-up pedal or accelerator pedal, and keep the engine rotation at low speed,
advancing slowly.
• Do not get over an obstacle. The machine is likely to tip over. Be sure to travel on a course clear of
obstacles.
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Страница 56: ...48 SAFETY LABEL LOCATIONS 2 2...
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