Great Plains P17917B Operator Manual - Manual (Page 22)

X-Press
Operating Instructions
22
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 X-Press should be run with the chassis
level to slightly tail low. In practice it is
possible to use the X-Press 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 X-Press.
The mounted X-Press should be lifted fully
clear of the ground for all headland turns.
Turning with the disc units or roller on the
ground could lead to damage of these
components.
In work, the tractor lower link arms may be
run in float in order to allow the machine to
follow undulations in the soil.
General Rules when Setting
the X-Press
• The lighter the land conditions the less
the disc angle required and the forward
speed can be increased.
• The wetter the land conditions the less
the disc angle required and the forward
speed will need to be decreased.
• Heavier land will require more of a disc
angle and a slower forward speed.
• The more the trash the less the angle
on the discs and forward speed will have
to be decreased.
• On ploughed land reduce the disc angle
to give a cutting/chopping action.
• In hard conditions increase the disc
angle to increase penetration.
Disc Angle Setting
4. Adjustment / Operation
INC
REASE DISC ANGLE
в
б D
ECREASE DISC ANGL
E