
20
HYDRAULIC WINDSHIELD SYSTEM HWS
The
“Claws”
are the parts in charge of transferring the
horizontal forces that arise on the climbing assemblies.
They also guide the mast all along the height of the
building. These claws go around the mast inner wings,
blocking the horizontal movement of the assembly or
protection screen but letting it slide vertically.
Claw assembly is made up of 2 swivel claws. A vertical
“double pin” connects them and at the same time fixes
them to the head’s frame.
Except for anchor recovery, claws must always
keep closed with the “double pin” locked with “Cotter
pin R3”.
For anchor recovery claws will open as shown in the
next pictures.
Unlock the Claws:
Open the Claws:
Note: Claws are closed following the steps in the
inverse order
Finally, the “Cylinder Connection Pin” is used for joining
the “Cylinder HWS” to the Head LT HWS as shown later.
Claws Closed
Double Pin Locked with the
Cotter Pin R3
Moving slightly the
head horizontally can
help at the opening
Remove the Cotter Pin R3
And lift the Double Pin