Great Plains 8-10m Press Range SN 12672+ Operator Manual - Manual (Page 23)

23 8-10m Press Range
Operating Instructions
4.4 Disc Units
(X-Press models
only)
The X-Press features two rows of discs which
chop and mix the crop residue. A disc spacing
of 250mm ensures a fine tilth, leaving the
machine to pull straight making the most
efficient use of the power available.
The discs fitted to the X-Press 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-Flex sprung
leaf linked to a track rod system. Gang angles
can be varied with ease and accuracy using
a shims on a hydraulic cylinder.
Adjustable angling of the discs (between 10°-
25°) ensures penetration and stubble mixing
are achieved in one pass. Working depth can
be varied simply via shimmed hydraulic
cylinders. All this is achieved without
compromise to consolidation.
A level, evenly cultivated finish is maintained
by adjusting the balance of soil throw between
the front and rear discs.
All disc arms are shear bolt protected so they
break back if they meet obstructions. Sprung
Pro-Flex leaves offer further protection against
damage as well as offering a degree of
contour following as they flex up and down in
work.
4.3 Pro-Active Tines
(UniPress & CultiPress models only)
The Pro-Active tines are designed to move
soil and shatter clods to a greater degree than
traditional rigid leading tines. The ability to
move in all directions (upwards and
sideways) allows them to clear stones and
other obstructions. They feature simple,
pinned tine depth adjustment for easy depth
variation.
4. Adjustment / Operation
Fig. 4.05: Pro-Active Tines Fig. 4.06: Discs
4.2 Limit/Tilt Switch
The Limit/tilt switch allows the operator to
adjust the pitch of the machine. If the machine
is running nose low then the trip (profile) can
be moved forward (toward the tractor). If th e
machine is running nose high then the trip
(profile) can be moved backward. When
setting this switch it is necessary to tilt the
machine fully rearward each time to reset the
limit switch.
Fig. 4.04: Limit/Tilt Switch