Great Plains P17921E Operator Manual - Manual (Page 20)

UniPress
Operating Instructions
20
2.7.4 Rear Drawbar Setting
To prepare the rear drawbar for use:
1. Open the tap on the rear drawbar
cylinder.
2. Retract the cylinder and insert pin.
3. Close the tap to secure its position.
To change back to road transport /
'not in use' position:
1. Open the tap on the rear drawbar
cylinder.
2. Remove the pin and stow in the hole
shown.
3. Extend the cylinder and close the tap
to secure its position.
2.7.2 Transporting a UniPress
Towed Behind a Disc Cultivator
With both machines in the transport position
i.e. raised and folded, the chassis of the disc
cultivator should be slightly nose down or
horizontal even when the downward load
from the UniPress is applied to the drawbar
of the disc cultivator. The chassis 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
UniPress is transported up steep gradients
and across side slopes. 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.
MAXIMUM ROAD TRANSPORT SPEED 16
MPH (25 km/h).
2.7.3 Changing from Work
to Road Transport (UniPress
Towed Behind a Disc Cultivator)
1. Operate the hydraulics to raise the disc
and UniPress.
2. Operate the hydraulics to fold the
wings on both the disc cultivator and
the UniPress.
3. Fit the transport straps to both
machines.
It may be necessary to shorten
the drawbar cylinder of the disc
cultivator until the chassis is
horizontal or slightly nose down
before moving the machines.
Shortening the UniPress drawbar cylinder
will increase the loading on the rear of the
disc cultivator frame. If necessary this can be
used to level the chassis for road transport.
2. Transportation / Installation
Fig. 2.02: Rear Drawbar position when in use
STOWAGE HOLE
PIN
TAP (SHOWN OPEN)
Fig. 2.03: Rear Drawbar position when not in use