Great Plains P16229C Operator Manual - Manual (Page 20)

Hydraulic Reset Flatliner
Operating Instructions
20
4.5 Operation
During work the Hydraulic Reset Flatliner
should run reasonably level to achieve
consistent working effect of all tines. It is
important to set the machine up correctly in
order to achieve an efficient and worthwhile
operation. Although the Hydraulic Reset
Flatliner can work down to 300mm (12
inches) this does not mean that running
at this depth is always worthwhile, taking
time to identify where there is a problem
in soil profile and working to the minimum
depth to eliminate this could save a lot of
otherwise wasted diesel and time. It is also
4.4 Double Disc Roller
The standard DD600 roller is made up of
individual Double Disc (patented) Ring
segments.
The DD rings are 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.
very important not to operate below critical
depth of the tine, this is where the tine no
longer produces upward movement of soil
and effectively behaves as a mole plough,
therefore not producing the shattering effect
desired.
In work it is permissible to use the tine circuit
to raise the tines if draft requires reduction,
allowing the mainframe to remain fully
lowered keeping the surface pressing effect
at its maximum. As such, set the linkage to
minimum draft control, fully down.
The roll unit serves two functions; it conserves
soil moisture, breaking up any clods left by
the tines and limits the operating depth of the
machine. The pressure that may be exerted
upon the clods by the roll is limited by the
weight of the implement and the downward
tine thrust. This downward thrust can be
increased by fitting wider wings, or slightly
increasing the angle of the points and wings
(using the tractor linkage), and by minimising
any draft control setting on the tractor. This
is the first area to be investigated if more
roll pressure should be required. Draft
control can also inhibit initial penetration
if the implement is lowered too quickly on
the move into work. The rapid increase in
draft is sensed by the tractor, which then
inhibits further penetration. The solution is
to gradually lead the implement into work,
thereby not imposing a rapid increase in
pulling force.
When off hitching, adjust the tine height
to support the mainframe evenly between
tine points and rear roller for maximum
stability. Operate both circuits in float prior
to decoupling.
Fig. 4.03: Double Disc Roll
4. Adjustment / Operation