New levels of power, ‘intelligent’ technology and
productivity are offered by John Deere's 7050 Series self-propelled
forage harvesters, which will be available for the 2008 season.
The new range will line up as follows:
Model - engine hp
7250 & 7250i -
7350 & 7350i -
7450 & 7450i -
7550 & 7550i -
7750 & 7750i -
7850 & 7850i -
Designed for high capacity harvesting in grass, maize and wholecrop,
this latest range continues to use Deere’s unique infinitely
variable length of cut (IVLOC) transmission to enable operators
to change chop length on the move.
In addition to the basic models, six new i Series
machines will be equipped as standard with an integrated ‘intelligent’ package
of precision farming technology. This includes the HarvestLab dry
matter sensor, GreenStar 2600 display, Harvest Monitor and Harvest
Doc software, StarFire iTC receiver with SF1 signal (offering +/-30cm
accuracy for yield mapping), and new AutoLOC.
AutoLOC provides automatic adjustment of the length of cut depending
on the dry matter content of the crop being harvested, based on
settings programmed in by the operator on the in-cab GreenStar
The precise length of cut required from the standard 40 knife
drum can be dialled in from the driver's seat, in 1mm increments
from 6 to 26mm (approximately 1/4 to 1in). For even greater flexibility,
optional 48 and 56 knife drums offer adjustable cut lengths from
5 to 22mm and 4 to 19mm respectively.
This unique system allows the operator to adapt to different crop
conditions within the same field and keep the machine running at
optimum levels for peak performance. It also provides contractors
with the ability to tailor their service to individual customer
preferences, and to vary, monitor and record output not just from
farm to farm, but from field to field or even trailer to trailer.
Combining HarvestLab with Harvest Monitor and Harvest Doc means
the user can record yield and moisture data for transferring to
an office computer, which can then form the basis of yield and
moisture maps, as well as comprehensive operational, crop management
and traceability records.
The information provided on the cab display can also be used to
control silage additive applicators for variable rate application,
and enable the operator to select machine settings to produce the
optimum feed quality from the crop being harvested. In addition,
the farmer knows precisely the total amount of silage dry matter
in the clamp to plan for future feed rations.
The versatile HarvestLab sensor can also be removed from the forager
spout to allow it to be used for stationary feed analysis of different
Horsepower increases of up to 11 per cent are generated by a new
fuel efficient John Deere PowerTech Plus Tier 3 engine – 9-litre
on the smallest 7250 model, and 13.5-litre on the 7350 to 7750
machines – with similar exhaust gas recirculation and variable
geometry turbocharger technology to that featured on the company’s
latest 30 Series tractors. The top of the range 7850 model continues
to use the same Cummins 15-litre Tier 2 engine as before.
Options on the new foragers will include the ProDrive hydrostatic
transmission with full anti-slip control, automatic diff-lock and
automatic park brake, AutoTrac assisted steering and a new automatic
spout positioning system with nine settings. Additional specification
improvements include a roller blind to reduce crop build-up at
the feed intake and reduce the need for cleaning and maintenance.
All the new foragers are designed to take the award winning Kemper
four, six, eight and 10 row (3 to 7.5m) rotary maize headers, in
addition to the standard 3m grass pick-up. These include the new
eight row (6m) Kemper 460 Champion, a large drum, row independent
maize header which is designed to handle very tall plants and difficult,
laid crops to reduce harvesting losses.
For undulating ground, a new optional automatic header control
is available for the Kemper range, featuring active management
of header height and tilt using information from sensors on the
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