INSTALLATION, USE AND MAINTENANCE
GBA-GBP-CBE-MBE SERIES
47
•
check the operation of the lifting brake, checking that the mass is stopped in adequate time and that
there is no shifting of the load, after releasing the button
•
perform the same tests also for the trolley traverse movements and arm rotation, checking the operation
of the limit switches without bringing the load to the maximum height (lift to a metre from the ground).
•
work first at slow speed, if available, and then at maximum speed
•
check the correct movement of the trolley on the beam and make sure that no anomalous noise is
heard, or clear permanent deformations or giving way of the crane structure and/or anchorages
•
check the operation of the “emergency stop” button which must stop and inhibit all movements. Any
operation of the hoist and/or trolley must stop, in the shortest time and space possible, without any
anomalies, shifting, hazardous swinging, etc. nor compromise its stability.
•
check the operation of the load limiter, and or the friction device, if included.
•
check the braking and stop spaces during the lifting, traverse and rotation movements, checking the
stability of the mass.
The dynamic test must be performed in the most unfavourable load conditions, i.e. by
combining lifting, traverse and rotation movements.
Static test:
•
prepare adequate weights for the load tests equal to:
rated capacity x 1.25
and suitable
equipment for slinging and lifting the load
•
sling the load
used for the dynamic tests
(rated capacity x 1.1) being careful to position the
hook vertically to avoid oblique pulling
•
slowly tension the sling to avoid tugging, perform the load tests using the “slow” speed if available
•
lift the load and stop it in suspended position at a height of 10 cm
•
gradually apply weights on it for an overload equal to 25% of the rated capacity
•
leave the weight suspended for a time not less than 10 minutes.
•
check that the suspended weight (load + overload) does not give way (the lifting brake and friction
device/load limiter, if installed, must not slide).
•
release the load and make sure that clear deformations and/or giving way of the crane and
support structures and/or anchorages are not detected.
•
No movement of the crane should be activated during the static test.
•
The jib crane acceptance test must be repeated for the annual controls (see
paragraph 6.3.2).
•
The annual acceptance test results must be noted in the control booklet (see
chapter 8) attached to this publication, when included
4.5 Decommissioning
4.5.1 Storage and preservation of parts
If the jib crane and its components need to be stored, to prevent damage or
deterioration, proceed as follows:
•
Protect the machined surfaces of the plates and mechanisms with antioxidant products, do not scratch
the surfaces used for assembly with other parts or inside of the holes.
•
The materials, whether for indoor or outdoor installation, can be stored for a maximum period of two
years in an environment with the following characteristics:
o
protected from inclement weather
o
relative humidity not greater than 80%
o
minimum temperature - 20°C - maximum tempe 60°C
•
For a storage period over two years ask the manufacturer for the storage procedures
