Great Plains DTX300 P16315 - Manual (Page 21)

21 DTX 300
Operating Instructions
4.5 DD Light Roller
The DD Light roller is made up of individual
Double Disc (patented) Ring segments.
The DD Light roll is designed to consolidate
the soil whilst cutting and crushing any clods.
Even in heavy, wet soils it can easily be
operated with minimal blockages occurring.
The rear DD Light roller carries a proportion
of the machine’s weight to ensure
consolidation. It also regulates the depth of
the disc units. The corrugated surface left by
the roller is weatherproof both for wet or dry
situations.
4. Adjustment / Operation
Fig. 4.06: DD Light Roller
4.4 Disc Units
The DTX 300 features two rows of discs
which chop and mix the crop residue. A disc
spacing of 250mm ensures a fine tilth.
The discs fitted to the DTX 300 are 500mm
in diameter (20") and 6mm thick. They are
manufactured from heat treated chrome
boron steel which ensures excellent wear
resistance and enhanced working life. Each
disc is mounted on a Pro-Active sprung leaf
linked to a track rod system. Gang angles
can be varied with ease and accuracy using
a graduated adjuster.
Adjustable angling of the discs (between 10°-
25°) ensures penetration and stubble mixing
are achieved in one pass. Working depth can
be varied via the 3 point linkage and the rear
roll linkage.
A level, evenly cultivated finish is maintained
by adjusting the balance of soil throw between
the front and rear disc.
Sprung Pro-Active leaves offer protection
against damage as well as offering a degree
of contour following as they flex up and down
in work.
Fig. 4.04: Discs