Great Plains Uni-Press - Manual (Page 16)

6. TRANSPORT
With both machines in the transport position i.e. raised and folded, the top frame of the disc
harrow should be slightly nose down or horizontal even when the downward load from the
Uni-press is applied to the drawbar of the disc harrow. The top frame should NEVER be tail
low in transport as this will give a high negative loading on the tractor which could lead to
loss of traction to the rear wheels.
Extreme caution must be taken when the Uni-press is transported up steep gradients
and across side slopes. On the wide models, higher drawbar loading can be achieved by
shortening the drawbar cylinder.
Prior to leaving the field to travel on a public highway ensure that any clods of soil
are removed from the machine to prevent them from fouling the road.
NOTE: MAXIMUM ROAD TRANSPORT SPEED 20 MPH (30 KPH).
CHANGING FROM WORK TO ROAD TRANSPORT
1.Remove the disc harrow wing locking bolts.
2.Open the taps on the Uni-press drawbar and wing fold cylinders (if fitted).
3.Operate the hydraulics to raise the disc and Uni-press.
4.Operate the hydraulics to fold the wings on both the disc harrow and the Uni-press.
5.Fit the wing transport chains to both machines.
6.Fit the transport straps to the disc harrow.
7.Close the taps on the Uni-press drawbar and wing fold cylinders.
NOTE: It may be necessary to shorten the levelling springs until the top frame of the
disc harrow is horizontal or slightly nose down before moving the machines.
Shortening the Uni-press drawbar cylinder will increase the loading on the rear of the
disc frame. If necessary this can be used to level the disc top frame for road transport.
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