Elliott Digger Derrick, Руководство по эксплуатации и техническому обслуживанию, Страница: 111 / 376

Jib Operation EEC-0044 V1.1
Jib Operation
A. The anti-two-block switch weight and cord must be attached to the jib when
deployed. Do not lift load with the boom tip when the jib is pinned on the boom
tip.
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.
3. Operate with jib by boom angle when main boom is not fully extended. Do
not exceed rated jib capacities at any reduced boom lengths.
4. When angle is between points listed on capacity chart, the load shown at
next lower boom angle shall be used.
B. 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.
C. 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.
D. Crane shall be fully set up according to proper set-up procedures outlined
previously when stowing or unstowing jib.
E. Operate boom and turn functions very slowly and carefully when using jib since
jibs can increase boom length by 50 percent.
F. Area where jib swings around must be clear of obstructions and power lines
when stowing and unstowing jib.
G. Use safety glasses when pounding pins with hammer.
H. Do not extend/retract boom unless boom is horizontal when stow pin ‘ A’ and
jib-swing pin ‘ B’ are removed during stowing or unstowing procedures.
I. Always put spring clips in pins to ensure that they will stay in place.