Great Plains P17921E Operator Manual - Manual (Page 16)

UniPress
Operating Instructions
16
2.4 Hitching Up
When hitching-up the machine,
ensure that no-one is between the
tractor and the machine.
When the UniPress is parked for
extended periods of time it should
ideally be left in the unfolded,
i.e. work, position for stability,
safety and ease of access for
maintenance. However, parking
the UniPress in the folded
position (using the parking stands
provided) is acceptable in the
normal course of operation.
Tractor Oil Flow Adjustment:
As a general rule the tractor oil
flow rate should be set in the
lowest setting before starting.
This can then be increased to
allow the desired rate of operation
as applicable. This will minimise
excessive oil flow and consequent
power usage and heat generation.
Do not open taps while tractor
hydraulics are in float.
The hoses in the lift circuit have
a maximum rated pressure of
415bar, and should be replaced
every 6 years. Other components
in this locking circuit have a
maximum rated pressure of at
least 350bar.
2.4.1 Hitching up a Tractor to
the UniPress / Preparing for
Transport
1. Couple the six hydraulic hoses to the
tractor ensuring that the two wing
hoses are together, the two drawbar
cylinder hoses are together and the two
levelling board hoses are together.
2. Connect the tractor to the drawbar
using the hydraulics to raise or lower
the height of the shackle. Do not use
the tractor pick-up hitch to attach the
machine to the tractor.
3. Carefully operate the hydraulics to
lower the drawbar and tilt the UniPress
onto the road transport wheels. Fully
extend the drawbar cylinder.
4. This allows the levelling boards to be
fully raised so that when the UniPress
is folded the levelling boards do not
protrude beyond the 3m transport width.
Fully raise the levelling boards.
5. Operate the hydraulics to fold the
wings.
6. Ensure that the wing strap is fitted to
tie the two wing sections together.
7. Ensure that parking stands are locked
in the transport position, ie. fully raised.
2. Transportation / Installation