Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

Page: 228 / 248

17-24
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 max ext’ means the state that the inner box is extended to the position
where the 2nd mark is visible.
• ‘Outriggers not max ext’ means the state that the inner box is extended to the
position where the 2nd 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 boom is extended to the position where the 1st
mark on the 4th boom-section is visible.
• Boom
1+2+3+4+5
means that the boom is extended to the position where the 2nd
mark on the 4th boom-section is visible.
• Operate the crane using the rated load capacity data under the boom extension of:
1+2+3+4
when the mark on the 3rd boom-section goes beyond the 2nd boom
section, regardless of the displacement,
1+2+3+4+5
when the 1st mark on the
side plate of the 4th boom-section goes beyond the 3rd boom-section, regardless of
the displacement,
1+2+3+4+5+6
when the 2nd mark on the side plate of the 4th
boom-section goes beyond the 3rd boom-section, regard less of the displacement.