Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

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17-5
MAJOR SPECIFICATIONS
Points to notice, Rated load
• Rated load showing on the chart is hoisting capacity with the crane set up level and
the data are based on actual working radius by incorporating a shift due to deflection
of the boom when loaded.
In addition, they are based on strength and stability of the crane.
• ‘Outriggers extended to maximum’ means that the inner box is extended to a position
where the 2nd mark is visible.
• ‘Outriggers extended to halfway’ means that the inner box is extended to a position
where the 1st mark is visible.
• ‘Outriggers extended to minimum’ means that the inner box is extended to a position
where the 1st mark is invisible.
• When each of 4(four) outriggers is set to different extension, operate the crane by
using the worst extended capacity.
• When each section of boom is extended regardless of an extent, operate the crane by
applying the rated load capacity data under the boom section next to the section
being extended.
• Boom 1+2+3+4 means that the 4th boom-section is extended to the mark.