Terms to Know
The Rated Lifting Capacity Chart (figure 4-5) contains an On Outriggers
Chart and an On Rubber Chart. The On Rubber Chart contains rated
capacities for stationary and for pick and carry operation.
All SCAMP capacity charts are limited by structural strength. This is
indicated by the bold line across the bottom of the chart.
Each chart shows the radius of the load in a column at the left. The radius is
the distance between the axis of rotation of the turntable and the center of
gravity of the load. Varius boom lengths are listed across the top, ranging
from fully retracted to fully extended. The loaded boom angle (in degrees)
required for the given lift is shown in parenthesis below the maximum total
weight which can be listed. Note that capabilities at radii in between the
increments shown should be always be treated as if the load was at the next
longer radii. For example, the chart capacity at 13 feet radius is 4500 Ibs
which is the capacity at the next longer radii, 15 feet.
Another important section of the Rated Lifting Capacity Chart is the range
diagram. The range diagram illustrates the tip height which can reachieved
at each boom length, angle, and radius. If the operator knows the radius