Document number: ED.03783.00.001.ENG rev 4 Page 107 of 153
7 Execute an operation
7.1 Risks and Warnings
Address the following subjects:
NB
• Proper handling of the system is essential for safety.
• Observe the system while operating.
• Make sure the working area is fenced off.
Hazard
• Improper use of the machine may result in accidents causing damage not
only to the machine itself, but also to objects and goods in its vicinity or
mounted to the machine, as well as injuries to people in the immediate
area, and possibly even death.
• Failure to adhere to the checklists may result in serious injury to the user,
possibly even death.
• Even if all safety measures are taken and the system is operated correctly,
there will remain a residual risk of tumbling of the system.
• Although the system monitors that the system stays level, it cannot not
detect failure of for example the support/ground at a specific location. This
might lead to non-level lifting of the load. To detect this a theodolite should
be used to monitor the load.
Caution
• Failure to prepare correctly for a lifting operation may result in total loss of
machine stability during use.
• When lifting, always assume a worst-case scenario. The wind can be
unpredictable, quickly changing speed and direction. Do not take any
chances: strong wind means 'no go'!
Attention
• It is of the utmost importance to read this manual carefully before setting
up the machine..
• Adhere to the checklists during all work activities: during preparation for
the lifting operation, system construction, and for lifting the load.
• A unit is only part of the central emergency stop system if the control
selector switch is in the remote position.
• Ensure that the load avoids contact with a gantry leg or any obstructions
while lifting, side shifting, or traveling.
• Ensure that the gantry legs, header beams, and other components of the
gantry system avoid contact with any obstructions while traveling.
• The operator should have an unobstructed view of the system and load
during operation of the system. If this is not possible, a signalperson shall
be used with an effective means of communication to provide directions to
the operator.
• Communication among personnel involved in the operation shall be
maintained continuously during all movement of the load. If at any time
communication is disrupted, the operator shall stop all movements until
communication is restored.
• Signals to the operator should be in accordance with the standards
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