Great Plains TL350 Operator Manual - Manual (Page 21)

21 Simba TL
605-039M-ENG
2013-02-27
4.8 Adjusting Depth
The depth of the machine in work is
controlled using the 3 point linkage and the
roll unit.
When the depth has been altered, lower the
machine into work and check operation. If
the depth change has been significant then
other settings could be affected. This could
be chassis pitch (front to rear).
A small amount of cultivation, eg. a 20
metre run, should be carried out before
altering these settings to check whether
they are now suitable for the cultivation
effect required. These settings should be
addressed immediately to prevent too much
work being carried out.
4.7 Work Settings
Optimum performance has been found to
be achieved when the DD Light roll rings
have worn away the painted finish leaving
a smooth shiny surface. When the DD Light
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 Simba TL should be run with the
chassis level. In practice it is possible to
use the Simba TL on ground conditions that
are unsuitable to achieve the desired effect,
and it is usually possible to operate the DD
Light roll without regular blockage under
such unsuitable conditions, assuming that
the roll assemblies are tight, the scrapers
correctly adjusted and rings smooth. As
such, especially under wet conditions, it is
advisable to check on the cultivation effect
of the Simba TL.
The Simba TL should be lifted fully clear of
the ground for all headland turns. Turning
with the tines, disc units or roller on the
ground could lead to damage of these
components.
In work, the tractor lower link arms should be
run in position control with draft introduced
if required.
Fig. 4.08: Depth Control

4. Adjustment / Operation
Fig. 4.09: Suggested start setting