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COMMISSIONING
4.7
INSTRUCTIONS ON HOW TO DETERMINE EXPERIMENTALLY THE
CRANE'S STANDING STABILITY
4.7.1 Safety instructions
* The test has to be carried out with special caution: danger of tipping over!
* Check before the test that all the crane cylinders are deaerated: sudden movements!
* The surface must be flat and sturdy enough to withstand the load of wheels and other support
points
4.7.2 Test conditions
* During the test the vehicle is in its normal operating conditions without load.
* Eventual grapple equipment should be removed or weighed into the test load in accordance with
the table.
*The stability test loads have to be determined by the following formula:
TL=Ks x P + (Ks - 1) x Gb
Where:
Ks= Stability factor 1.1
TL= test load
P= lifting capacity
Gb= boom volume at the lifting accessory's attachment point (see the masses in specifica-
tions)
4.7.3 Performance of test
* The stability test has to be carried out with the most unfavourable configuration of the
boom/extensions in the entire area of rotation. If the bearing capacity is lower in some parts of the
rotating area, in these areas the test load has to be defined accordingly.
*The stability test has to be carried out so that the crane is on a stable base in the most unfavoura-
ble conditions defined by the manufacturer. All the ramps have to be accordant with the maximum
inclinations defined by the manufacturer.
* The goal of the test is to verify the standing stability of the unladen load crane installed on a vehi-
cle. During the test loading one or more bearer feet may rotate or rise from the ground. In any case
at least one of the parking brake casters has to stay in contact with the ground. The test loading
must be carried out with an unladen vehicle without a driver.
* The test should be considered acceptable if the test load remains in place without any sign of
falling.
* Installation company that determines standing stability:
Installation company.
Date
Signature
38
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