Elliott Digger Derrick, Operation & Maintenance Manual, Page: 55 / 376

Jib Safety EEC-0045 V1.1
Jib Safety
The proper procedures for jib deployment and stowing can be found in the Jib
Operation section of the Safety & Operation chapter. Read and follow these safety
guidelines when using the jib.
A. The anti-two-block switch weight and cord must be attached to the jib when
deployed.
B. Do not lift load with the boom tip when the jib is pinned on the boom tip.
C. Load Chart Interpretation with boom at full extension
1. Operate with jib by radius when main boom is fully extended. If necessary,
increase boom angle to maintain loaded radius.
2. When radius is between points listed on capacity chart, the load shown at the
next longer radius shall be used.
D. Load Chart Interpretation with boom not at full extension.
1. Operate with jib by boom angle when main boom is not fully extended. Do not
exceed rated jib capacities at any reduced boom lengths.
2. When angle is between points listed on capacity chart, the load shown at next
lower boom angle shall be used.
E. Ensure jib is stowed correctly.
1. Removal of swing-around pins, 'C' without proper installation of stow pin
'A' and jib-swing pin 'B', may allow jib to fall.
2. Extending boom with jib stowed and failure to remove swing pins 'C', will damage
boom and/or jib.
F. Only attempt to swing jib to working or stowed position when boom is horizontal,
stow pin 'A' and jib-swing pin 'B' are removed and swing pins 'C' are in place. Jib
could swing uncontrollably if boom is not horizontal.
G. Crane shall be fully set up according to proper set-up procedures outlined previously
when stowing or unstowing jib.
H. Operate boom and turn functions very slowly and carefully when using jib since jibs
can increase boom length by 50%.