SIDE-STOW JIB
Jibs are rated by boom angle only and not by radius. This means that as long as
the boom is at 61° boom angle and the jib at 30° offset, before loading, no matter
if the boom is fully extended or retracted, it can only lift a maximum of 3,300 lbs.
on a 33 foot side-stow jib. The radius shown in the jib chart is the expected
radius with a fully extended boom and jib after loading and deflection.
Never use a jib for clamshell or magnet operation. The heavy side load due to
swinging and bouncing that can occur could damage jib or boom point. This is
also true of pick and carry operations.
JIBS
To determine the jib capacities of the crane with all boom lengths, use the following procedure:
1. Determine weight of load to be lifted.
2. Determine weight of slings and rigging hardware.
3. Determine weight of hook block.
RT500
Operating Instructions
124 REVISED:
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