Great Plains 8-10m Press Range SN 11999-12005 - Manual (Page 26)

8-10m Press Range
Operating Instructions
26
tilt rams. Once the rear roll is clear of the
ground stop. Move to the rear of the machine
and remove, from the upper cluster, the
required number of shims checking to ensure
that an equal number across the width of the
machine remain. Return the tractor and lower
the machine back into the work position.
Continue to pressure the hydraulics to tilt the
machine backwards onto the roll. It is
important that you now add the shims that are
removed and place them on the opposite side
of the depth adjuster rod. This will ensure that
when folding the roll does not ‘hang low’ or
out in road transport. With the required depth
adjustments made swing the WORK/FOLD
manual divert valve to the WORK position.
Lower the machine back to rest on the ground
and continue with work.
4.9.2 Lifting the Tines Out of
Work
Swing the WORK/FOLD manual divert valve
to the FOLD position. Operate the hydraulics
to tilt the machine backwards onto the roll,
continue to operate the hydraulics until the
machine is sitting on the rear roll. Move to the
rear of the machine and remove shims from
the lower cluster. Operate the hydraulics to
begin what would be the fold sequence, it may
be necessary to remove shims from the tilt
rams. Once the rear roll is clear of the ground,
stop. Move to the rear of the machine and
replaced the removed shims into the top shim
cluster. When making a depth adjustment
check to ensure that an equal number of shims
across the width of the machine. It is important
that you add the shims that were removed and
on the opposite side of the depth adjuster rod.
This will ensure that
when folding the roll does
not ‘hang low’ or out in road transport. With
the required depth adjustments made swing
the WORK/FOLD manual divert valve to the
WORK position. Lower the machine back to
rest on the ground and continue with work.
4.9 Adjusting Tine Depth
(UniPress and CultiPress models only)
With the machine set on the WORK position
operate the tilt hydraulics to crowd the
machine back onto the rear DD roll. Continue
to do this until the main tilt rams are at full
stroke then stop the tractor. SHUT THE TILT
RAM TAPS ON THE RAM PORTS. This will
then allow access under the machine to adjust
the tines. Once all tines have been adjusted
to the required depth ensure no persons are
under the machine open the tilt ram taps on
the ram ports then lower the machine back
down to rest all elements on the ground.
4.9.1 Placing Tines Deeper
into Work
Swing the WORK/FOLD manual divert valve
to the FOLD position. Operate the hydraulics
to begin what would be the fold sequence, it
may be necessary to remove shims from the
4. Adjustment / Operation
4.8 Depth Control
With the wing cylinders fully extended and the
machine tilted back onto the rear roll the
machine is ready for setting. On all versions
ensure the front divert valve is swung from the
FOLD to WORK position.
On the UniPress and CultiPress models there
are two main methods of adjustment.
• Coarse adjustment can be made by
lowering or lifting the tines within the
mounting plates, this will give a +/-25mm
depth change per hole.
• Fine adjustment can me made by
adding or removing shims on the rear
roll depth adjusters. Here a 5mm shim
added will raise the tines out of work by
10mm a ratio of 1:2.
On the X-Press models depth adjustment is
made in the same way as the FINE
adjustment method mentioned above.