Turning loads
7.1 Prerequisites
Lattice extension operating instructions 3 112 441 en 7 - 1
GMK 4100/4100-L/5095
11.01.2008
7 Turning loads
Two-hook operation is required to turn loads.
Two-hook operation is only permitted with:
– Swing-away lattice or
– Auxiliary single-sheave boom top or
– Heavy load lattice extension
H
For the location and function of the required operating elements;
à Operating instructions of the truck crane.
H
In two-hook operation, the loads given in the lifting capacity table are reduced
by the weight of both reeved hook blocks.
7.1 Prerequisites
The following description requires that:
– The main hoist rope is reeved on the main boom
– The auxiliary hoist rope is reeved on the lattice extension
– The lifting limit switches for both hoists are connected
– The reeving on the main boom is equal to or greater than the reeving on
the lattice extension and
– The SLI code has been set according to the
Lifting capacity table for the
actual rigging status of the truck crane with the rigged lattice extension
G
Risk of accidents due to overloading
Lifting a load with two hooks is permitted only according to the following
instructions and illustrations.
If these instructions are disregarded, there will be a risk of accidents due to
individual parts of the truck crane being overloaded. In this case the SLI no
longer provides protection.
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