Great Plains P13114 2009 Operator Manual - Manual (Page 26)

CultiPress
Operating Instructions
26
4. Adjustment / Operation
4.5 Work Settings
In work the wing cylinders should be fully
extended. The gangs are able to float over
any undulations on the ground due to their
floating frames.
Optimum performance has been found to be
achieved when the press roll rings have worn
away the painted finish leaving a smooth shiny
surface. When the press roll rings are new or
rusty, soil may tend to pick up on the surface
and blockage may occur, this will reduce when
the rings are shiny again.
The CultiPress should be run with the chassis
level front to rear by extending the drawbar
cylinders to the necessary position. The
cylinders should not be over extended as this
will remove the load on the front row of rings
which could lead to reduced drive and hence
blockage of the axles.
It is not necessary to tilt the CultiPress onto
the transport wheels during headland turns
whether the machine is used independently
or in tandem with a disc harrow. Normally,
the CultiPress should be tilted sufficiently for
the tines and levelling boards to clear the
ground (at which point the rear axle wheels
will still be clear of ground contact).
General Rules when Setting
the CultiPress
• Run the chassis horizontal to give even
drive on both sets of rings.
• Run slightly tail low to give increased clod
cutting and consolidation in harder
conditions.
• In trashy conditions the use of the
levelling board may be limited due to raking
trash.
• Increase the rake angle of the levelling
board in spring time operation to carry more
soil for levelling.
• Reduce rake angle on levelling board to
hold soil and rub clod against clod in harder
conditions. This will also align clods with
the DD rings facilitating better cutting.
4.5.1 Levelling Boards
With the chassis set level, lower the levelling
boards until they are carrying soil. The level-
ling boards will need to be set higher during
1st pass operations especially on ploughed
land where large clods may not be able to
pass under or between the sprung leaves.
The boards need to carry a certain amount of
soil to effect a levelling operation and also to
give a clod to clod crushing action. Use the
hydraulics to raise and lower the boards to
carry more or less soil when levelling the head-
land troughs for example.
When reversing the CultiPress into corners
when working headlands ensure that the lev-
elling boards are fully raised and the machine
tilted onto the rear set of rings far enough to
allow the lower ends of the sprung leaves to
clear the ground.