Unfolding – Great Plains 8-10m Press Range SN 11999-12005 User Manual

Page 16

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8-10m Press Range

Operating Instructions

16

2. Transportation / Installation

2.5 Folding and Unfolding

2.5.1 Unfolding into the Work

Position

Ensure the machine is on flat and level ground.

1.

Fold down the light units from road
transport to work position. Open the
taps on the hose mast to allow oil flow
to the wing locking catches and main
tilt rams. Check the WORK/FOLD
manual divert valve is in the FOLD
position.

2.

Operate the hydraulics to lower the wing
catcher arms (BLUE). Continue to
pump oil until full pressure on the big
bore side of the ram is met. This must
be done to open the valve to allow oil
flow to the wing fold circuit.

3+4 . With the catcher arms fully lowered

operate the wing fold hydraulics
(YELLOW). Keep operating until all wing
rams are at full extension (at this point
the wings will have just passed being
parallel).

5+6. With the wings fully open gradually

operate the main tilt ram hydraulics.
This will then lower the machine
rearwards into the work position.
Continue to extend the rams until they
are at full stroke. The transport wheels
will now be clear of the ground. Note:
when tilting rearwards for the first time
from folded there will be a delay (5-15
seconds depending on flow) before the
machine begins to tilt. This is normal,
continue to pump oil as normal.

7.

The machine is now ready to be set for
work.

Unfolding

1

2

3

4

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