Great Plains P18253C Operator Manual - Manual (Page 25)

25 Simba SL
Operating Instructions
Fig. 4.04: DD Light Roll
4.4 DD Light Roller
The DD Light roller is made up of individual
Double Disc (patented) Ring segments.
The DD Light roll is 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.
The rear DD Light roller carries a proportion of
the machine’s weight to ensure consolidation.
It also regulates the depth of the disc units.
The corrugated surface left by the roller is
weatherproof both for wet or dry situations.
4.5 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 SL should be run with the chassis level
to slightly tail low. In practice it is possible
to use the SL 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 SL.
The SL should be lifted fully clear of the
ground on the transport wheels for all
headland turns. Turning with the disc units
or roller on the ground could lead to damage
of these components.
4. Adjustment / Operation