Great Plains 8-10m Press Range SN 12672+ Operator Manual - Manual (Page 27)

27 8-10m Press Range
Operating Instructions
4.11 Out-Rigger Wheel
Adjustment
When in work these units are designed to help
support the wing tips. After making any
adjustment to the working depths it is
important to check that both of these units are
still in light contact with the soil surface.
Adjustment is made by tilting the machine
back onto the rear roll and extending or
contacting the top link bar. Add or remove
shims to give a solid lock. The side mounted
link bar should be tight at all times.
4.13 Transport wheel
adjustment
If when in work the center of the machine
begins to dip or the machine enters a wet spot
it is possible to support weight on the middle
transport wheels.
4.13.1 Adjusting the Transport
Wheel Height
Operate the main tilt circuit (red) to extend the
cylinders and support the weight of the
machine on the rear roll, continue to extend
the cylinders until all tines/discs are out of work.
Now, operate the wheel cylinder circuit (blue).
This will push the wheel cylinders open (the
rear roll cylinders will also extend at the same
time). Add/remove the required number of
shims from the wheel cylinders then operate
the circuit in the opposite direction to close
the wheel cylinders. NOTE: ensure the shims
on the wheel cylinders and the rear roll are
clamped up tight. Making sure none is near
the machine lower the machine back into the
work position. As long as the power to the limit
switch is still on then the pressure will return
to the previously set pitch.
4.12 Levelling Boards
(if fitted)
With the press set level rotate the levelling
boards until they are carrying soil. The
levelling boards will need to run slightly higher
during first pass operations especially on
ploughed land where large clods may not be
able to pass under or between the sprung
leaves.
The boards need to carry a certain amount of
soil to effect a levelling operation and also to
give a clod to clod crushing action. Use the
hydraulics to rotate the levelling boards to
carry more or less soil when levelling the
headland troughs for example.
When reversing the PRESS into corners
ensure that the levelling boards are fully
rotated (fully meshed into DD’s) and the
machine is tilted fully onto its rear roll so all
ground engaging elements are clear of the
ground. Failure to do so could result in serious
damage.
Fig. 4.10: Transport Wheel Adjustment
4. Adjustment / Operation