Great Plains P18432E Operator Manual - Manual (Page 24)

SLD
Operating Instructions
24
4.8 Starting Settings
This section details the recommended
starting settings for the SLD. These settings
can then be used as a base for further
adjustment in order to get the optimum
performance from your machine.
Ensure all settings from the left and right
hand sides of the machine mirror each other.
4.7 Work Settings
In work the wing cylinders should be fully
extended. A simple pressurised hydraulic
circuit automatically sets itself as the wings
are unfolded.
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 SLD should be run with the chassis
level by extending the drawbar cylinder to
the necessary position and adding shims
as appropriate. In practice it is possible to
use the SLD on ground conditions that are
unsuitable to achieve the desired effect,
and it is usually possible to operate without
regular blockage under such unsuitable
conditions, assuming that the axles are tight
and rings smooth. As such, especially under
wet conditions, it is advisable to check on
the cultivation effect of the SLD.
Generally a forward speed of 5-7 mph
(8-11 kph) will achieve optimum results,
maximising inversion and burial. Speeds
in excess of those stated above will tend
to give a deterioration in the quality of the
work. This may be seen as a ridge and
trough effect across the work surface due
to soil being thrown too far by the leading
discs, the rear discs then are unable to turn
enough soil back.
Drawbar Cylinder
The drawbar cylinder shim
settings are subject to the
tractor drawbar height. As such,
the shim settings shown above
are intended as a suggestion
only. The machine should be
set to run with the chassis level.
1x 1x
Yellow
20mm
Silver
51mm
4. Adjustment / Operation