Boom; Boom And Terminology - Hardi COMMANDER TWIN FORCE Series Instruction Book

3 - Description

Boom

Boom and terminology

The TWIN FORCE boom are found in a hydraulic Y-version called HAY and a Z-version called HAZ which is suspended in a
strong, stable parallelogram boom lift.
The TWIN blowers are driven by a built-in hydrostatic transmission powered via the tractor P.T.O. Blower speed can be
adjusted stepwise from the tractor cabin.
The 18-30 metres HAY boom is pendulum suspended and equipped with 4 hydraulic rams. The raising/lowering and fol-
ding/unfolding functions are operated via the tractor hydraulics.
The 18-30 metres HAZ boom is pendulum suspended and fully hydraulically operated, all functions are controlled via the
Direct Acting Hydraulic System (D.A.H.). The boom is also equipped with individual boom tilt control and a hydraulic pen-
dulum lock.
The 32-36 metres HAZ 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.
Outer sections for all booms incorporate spring loaded breakaway.
The boom is available in 18, 20, 21, 24, 27, 28 and 30 m working width. For 4400 and 6600 litres sprayer the boom is also
available in 32, 33 and 36 m working width. All booms are 2-folded.
The boom can also be used in half folded position. Half folded lengths are the following:
Full working width
18 metres
20 metres
21 metres
24 metres
27 metres
28 metres
30 metres
32 metres
33 metres
36 metres
For 2-folded booms the terminology are as follows
A - Breakaway section
C - Outer section
E - Inner section
F - Centre section
3.12
1/2 folded
12 metres
12 metres
12 metres
12 metres
14 metres
14 metres
15 metres
17 metres
17 metres
18 metres