Great Plains NP30A 30-foot Predelivery Manual - Manual (Page 17)

Great Plains Manufacturing, Inc. Table of Contents Index Prepare Hydraulics 13
08/30/2011 Table of Contents Index 407-313Q
3-Point Hydraulics
Charge 3P Fold System
Refer to Figure 16
Note: On 40-foot models delivered cross-folded
(no transport rest), the rod ends of the fold cylin-
ders are disconnected for shipment.
30. Disconnect the rod ends of the fold cylinders.
31. Elevate the rod ends relative to the cylinder bodies.
Point and support them so that they cannot strike
implement parts during extension.
Note: This may be a slow operation. There are flow re-
stricting orifice plates at each cylinder port.
32. Fully retract the cylinders. Make sure fold locks do
not engage. Set circuit to Float.
33. Slightly loosen (crack) the JIC fittings at the base
end of the cylinders.
34. Slowly extend cylinders. As oil appears at a cracked
fitting, set the circuit to Neutral and secure the fit-
ting.
35. Fully extend, then fully retract several times. Make
sure fold locks do not engage.
36. When the last fitting has been secured, if this is:
• an unfolded implement, or
• a 30-foot implement folded to transport rest,
operate circuit to position rods for re-attachment.
Do not attempt, at this time, to connect rod ends on
cross-folded wings.
Continue at section “Install Components” on page 15.
Figure 16
3-Point Fold
31581
1
1
2
2
2
2
1
2