Liebherr HS 8100 HD Litronic - Manual (Page 3)

3
The hydraulic diaphragm wall grab HSWG is
equipped with a permanent measuring and control
system which makes it possible primarily to recog-
nize any deviation of the vertical excavating direc-
tion immediately, and to indicate it to the control
panel of the operator and secondarily to correct any
deviation of the vertical position by means of a
modification of the direction of the grab. Thus, high
accuracy is obtained also at deeper depths (more
than 50 m) and the construction of diaphragm walls
by means of grab excavation is thus perfected. The
hydraulic diaphragm wall grab operates free of
noise and vibration. Operation is easy compared to the mechanical dia-
phragm wall grab. By means of the special suspen-
sion via two ropes, each of which is deflected once,
the hydraulic diaphragm wall grab can be operated
by means of a smaller carrier unit whereby a more
economical application with improved mobility is
achieved.
The HSWG XY 200° is equipped with a deviation
control system for the x-axis and the y-axis, as well
as with a rotation control including data read-out
and monitoring system.
Hydraulic
Diaphragm Wall Grab
HSWG
General Remarks