AVANT Jib boom 300 Series, Operator'S Manual

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Ensure that there are no other persons at the operating area. Do not let assisting
persons to enter danger area of the boom or to directly in front of the loader. Also
make sure that reversing with the loader is safe.
6.1. Safe working load
The jib booms can be used to lift as much load as the loader can safely handle. The load handling capacity
of the loader depends on the distance of the load from the loader and the counterweights on the loader. A
load diagram is presented in the instruction manual of the loader. With the diagram the load handling
capability of the loader can be evaluated. The indicated diagram applies when the centre of gravity of the
load is at a distance of 40 cm from the loader.
Use primarily the fixing point of the boom that is closest to the loader. When using the telescopic lift boom
utilize its reach first and then use the telescopic boom of the loader, to keep the centre of gravity closer to
the loader as long as possible. If the highest lifting height is required, extend the telescopic boom while the
load is near the ground. This way you can more easily monitor the limit of the loader lifting capacity.
The lifting capacity and the stability of the loader are at the best, when
•
the loader articulation is kept straight
•
the centre of gravity of the load is as close to the loader as possible
•
the telescopic boom is kept retracted during lifting
•
The load must be transported calmly as low and close to the loader as possible, and the swinging of the
load must be avoided.
In the below table 2 are listed the minimum safe working loads on hard, level surface, both the telescopic
boom of the loader and the jib boom at its furthest setting and the loader articulation is turned to its
maximum. The values on the table correspond to the Safe Working Load as presented in the standard ISO
14397-1. The values indicated are with standard counterweights. Actual lifting capacity could be significantly
higher, or it may be lower, depending on terrain conditions and load distribution.
Table 2 – Safe working loads according to ISO 14397-1
Jib boom model:
Avant model: A31395 A21342
420 155 kg 65 kg
520 240 kg 115 kg
528 270 kg 135 kg
630 280 kg 145 kg
635 290 kg 150 kg
745 445 kg 235 kg
750 450 kg 245 kg
Do not extend the telescopic boom, when the load approaches the lifting capacity of
the loader or when the load has been lifted high.
6.2. Slope operation and uneven terrains
Using the equipment on inclined terrains and slopes requires extra caution. On inclined terrains the load
should not be lifted high. Swinging of the load or turning the articulation of the loader during lifting will affect
the stability of the loader and may lead to overturning the machine. Use low speed and do not make sudden
changes in speed or direction. Operate the boom with careful and smooth movements.