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Balancing the crane arm
Attention:
Note:
After the assembly procedure has been completed the seat arms, seats, risers, camera etc
may now be assembled on the platform or the remote head system may be mounted. An
itemized weight list for GFM accessories may be found below. Place the correct
amount of counterweight in the weight bucket to balance the load. The counterweights
should not be thrown into the bucket but rather placed softly in the bucket. When the arm
is balanced, the camera operator / operators can then take their position on the platform.
Attention:
Only original GFM seats, seat arms, risers etc may be used.
Working load capacity = Camera operator / operators + accessories
Place the required amount of counterweights in the weight bucket so that the crane arm
becomes balanced and remains in the horizontal position. If necessary, the crane can be
fine balanced by adjusting the sliding weight on the rear parallelogram at the weight
bucket. Do not forget to lock the sliding weight in position before tilting the arm.
The counterweight bucket door must be locked when operating the crane.
Deloading:
Attention:
Attention:
When the weights are removed, the platform personnel should dismount one at a time but
only after being instructed to do so by the crane operator. At all times, extreme caution
must be given to the shifting payload.
General Safety
Attention:
Operational conditions:
At a wind speed of 25 km/h – 15.6 mph crane operation must be stopped and the crane
secured, dismounted and the necessary safety precautions taken.
If it, for example, takes 2 mins. to unload the counterweights and take the necessary
precautions to secure the crane, one must commence with the procedure at a wind speed
of 20 km/h – 12.4 mph. DIN15019, part 1, section 6.13.
The crane may not be used in a lightening storm as there is the danger of electrocution.
When loading the crane the maximum working load
capacities and payloads must never be exceeded.
Do not load weights until the rigging system is mounted.
The safety belts provided must be fastened upon sitting
down and kept fastened at all times when on the platform.
When dismantling the crane it is essential that the platform
is supported fully by a stable underlay i.e. rostrum or
ground surface. In any case the platform should not be in
the air without support.
The counterweights must always be gradually removed
from the counterweight bucket before personnel leave the
platform.
All necessary precautions should be taken so that
unauthorized third parties cannot use or operate the crane
and also to ensure that only authorized personnel have
access to it.
GF-16 Crane System Instruction Manual
Page: 44
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