Description; Boom; Boom And Terminology; Dynamiccentre - Hardi Terra Force Instruction Book Supplement

Boom

Boom and terminology

The TERRA FORCE boom is a pendulum suspended, fully hydraulically operated Z-version with all functions controlled via
the Direct Hydraulic System (D.H.).
The TERRA FORCE boom is suspended in a parallelogram with nitrogen dampers and is available in 36, 39, 40 and 42 m
working width. All booms are 3-folded.
Boom features:
• Hydraulic pendulum lock.
• Outer sections incorporate spring-loaded breakaway.
• Tilt control with individual suspension (option).
• Individual folding of outer sections (option). This enables alternative boom widths.
For 3-folded booms the terminology is as follows:
A. Breakaway section
B. Short outer section
C. Intermediate section
E. Inner section
F. Centre section
÷
NOTE! When controlling the boom at the SetBox, the folding sections are:
X. Breakaway section
Y. Intermediate section
Z. Inner section

DynamicCentre

The TERRA FORCE boom features a DynamicCentre system that can adapt the boom suspension for different conditions.
DynamicCentre has hydraulic remote control of the suspension characteristics. The setting is done on the go from the cabin.
It will change the boom from being 10% sprayer following (pendulum-like) to be 80% sprayer following (trapeze-like).
The system is adjustable in 5 steps between the two absolute points of adjustment:
DynamicCentre step Pendulum state
1 Free pendulum
2-4 Partly stabilized pendulum
5 Stabilized pendulum

AutoTerrain (optional equipment)

AutoTerrain is an electro-hydraulic automatic boom management system which adapts boom suspension for different field
conditions on both boom movements and twisting forces on the boom. This allows the AutoTerrain to be proactive and
react on the cause more than on the symptom.
μ
ATTENTION! Please refer to specific book for information about AutoTerrain.
Terrain Behaviour
Flat field 10% sprayer following. Boom is stable in horizontal position.
Field with slopes Boom follows the sprayers heeling angle to some extent.
Hilly field 80% sprayer following. Boom follows the sprayer's heeling angle in hilly terrain.

3 - Description

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