SCORPIO 38’ - 45’ - PARTS AND COMPONENTS DESCRIPTION - Telescopic arm
Version 1.02 May 27, 2022
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The counterweights are fastened
onto the weight holders by two
screws. These screws have an
intermediate locking nut to be able to
tighten different amounts of weights
easily. These screws have two locking
positions.
One on the top and one on the bottom part of the “U”. Both
counterweight locking screws needs to be used. The maximum
number of weights can be told by the length of the male positioner on
the “U”. This maximum amount can never be passed.
One of the particularities of the dynamic counterweight system is that
the counterweights support can move automatically inside a small
range of movement to make a better balance of the telescope.
There are physical limits (fig. 02.64) used to detect the mechanical
end of the range of movement. When the crane starts, the motor of
the counterweights will move a belt attached to the gear that slides
the CW support in both directions to detect these limits.
Once both limits have been detected, the motor will move the CW
support in the center of the range of movement. The position of this
CW support can be controlled by the system to assign different
positions of the CW support to different positions of the crane length
in order to get a better balance of the crane in any circumstance.
The motor for the counterweights transmits the movement using a
belt. To apply tension to this belt, loose the 4 screws holding the motor
and under the motor there is a set screw that can be acceded from
the side. Tight this screw as needed. To remove the belt, completely
lose this set screw and remove the belt. In case the user wants to
move manually the position of the CW inside the trolley, use a fix
wrench in the gear to move the position of the CW and disable the
counterweight motor in the Counterweight Configuration menu.
• Commercial reference for CW belt: T10 480
All this system of motor and mechanical limits is connected to the
electronic box with one single cable that comes from the trolley to the
electronic box inside a chain. Either the connector, the limits and the
cable are protected for vertical rain with an IP42 protection grade.
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