Hardi NAVIGATOR DELTA, Инструкция, Страница: 27 / 120

3 - Description
27
Boom
Boom and terminology
The DELTA boom is available in 18, 20, 21, 24, 27 and 28 m working width. All booms are 2-folded. The boom are found in a
hydraulic Y-version called LPY and a Z-version called LPZ which is suspended in a strong, stable parallelogram boom lift.
Outer sections incorporate spring loaded breakaway.
LPY boom
The boom is pendulum suspended and equipped with 4 hydraulic rams. The raising/lowering and folding/unfoldning
functions are operated via the tractor hydraulics.
LPZ boom
The boom is pendulum suspended and fully hydraulically operated, all functions are controlled via the Direct Hydraulic
System (D.H.). The boom is also equipped with individual boom tilt control and a hydraulic pendulum lock. Individual folding
of outer sections enable alternative boom widths. The boom can also be used in half folded position.
Half folded lengths are the following:
For 2-folded booms the terminology are as follows:
A. Breakaway section
C. Outer section
E. Inner section
F. Centre section
Full working width 1/2 folded
18 metres 12 metres
20 metres 12 metres
21 metres 12 metres
24 metres 12 metres
27 metres 14 metres
28 metres 14 metres