User`s manual

13
IMPROPER USE
Improper use of the machine and want of maintenance may jeopardize the operator's and other people's health and safety
as well as damage the working environment and compromise the machine’s functioning and safety.
The actions listed hereunder, which of course do not exhaust all possible “improper uses” of the machine, represent the
most common and obvious ones.
They are hence to be absolutely avoided:
• NEVER lift loads with people moving across the working area.
• NEVER drag nor draw loads.
• NEVER lift loads which are glued to the ground by ice.
• NEVER operate without paying the due attention during handling.
• NEVER discharge the load abruptly.
• NEVER leave the load unattended.
• NEVER use the machine for uses which are not consistent with the ones it is intended for, nor for other operations such
as replacing lamps, or as a mobile scaffolding, etc.
• NEVER lift or lower loads at maximum speed.
• NEVER lift loads suspended in such a manner that the point of lift is outside of the center of gravity
• NEVER swing a load in order to suspended in such a manner that the point of lift is outside of the center of gravity.
• NEVER use the machine without wearing the suitable working clothes as well as, if necessary, personal protective
equipment.
• NEVER lift loads by the hook’s tip.
• NEVER lift guided loads without first having planned and put to effect suitable safety measures.
• NEVER leave loads suspended when the machine is out of operation.
• NEVER handle loads without having clear vision, an effective system of visual contact, or audio communication.
• NEVER lift a load which is exposed to winds, such as to make loading conditions not acceptable.
• NEVER consistently handle loads that are close to the maximum capacity of the machine without taking into
consideration the machines duty rating
• NEVER consistently operate so as to activate the load limiter.
• NEVER get into the habit of using the emergency stop device for routine operations.
• NEVER allow unqualified or unsuitable personnel to use the machine.
• NEVER modify the machine’s, or its accessories’, performances or features in order to change its originally intended
use.
• NEVER lower a load by manual operation in the event of power failure, unless a special device has been fitted to this
purpose by the manufacturer.
• NEVER perform maintenance, repairs or inspections without putting the machine out of operation first.
• NEVER, while performing maintenance operations, lean ladders against the machine, use unsuitable tools, work
without wearing personal protective equipment (helmet, goggles, gloves, safety harness etc.).
• NEVER do not reverse abruptly during handling operations.
• NEVER leave the machine, after finishing work, without bringing the hook to a height of 2.5 m. minimum.
• NEVER use the machine on temporary supports, suspensions or provisionally installed raceways.
• NEVER use temporary electric connections using unsuitable or uninsulated provisional cables or with unbalanced
phases which do not correspond to the direction of the machine's lifting path.
• NEVER use a crane with twin travel motors, when one of them is broken or not correctly connected, as this may cause
the crane to derail and fall.
• NEVER use the machine with electric lines which are not in perfect working order (jammed loops, off-line or dirty
raceways, loop feeder trolleys not sliding properly). A torn electric cable might have disastrous consequences.
• NEVER use the machine with wire ropes that are unsuitable, torn, deformed, unlubricated or have broken strands.
• NEVER use an hook which is frayed, open, without safety spring catch or not properly secured by its nut.
• NEVER activate repeatedly (repeated impulses) control push buttons or actuators (e.g. push button control pendant).
• NEVER use the machine if limit switches are not working, anticollision is switched off or electric current is out of phase.
• NEVER use the machine if brakes are released or their lining is worn out.
• NEVER use push button control panels which are cracked or whose wires come out of the sheath of the suspension
cables, are frayed or uninsulated.
• NEVER apply under-hook accessories which are not suitable as to their weight and safety level to the hook or the
machine in general. In any case, the accessory’s mass must be taken into consideration when considering the nominal
working capacity.
• NEVER touch revolving pulleys, moving wire ropes, taut slings where they are in contact with the load or between hook
and slings.
• NEVER tamper with the settings of safety devices (limit switches, load limiter etc.).
• NEVER go on lowering the hook after having placed the load so that the ropes run free.