Great Plains NP30A 30-foot Predelivery Manual - Manual (Page 22)

18 NP30 or NP40 Table of Contents Index Great Plains Manufacturing, Inc.
407-313Q Table of Contents Index 08/30/2011
Install Transport Rest
This topic is only for 40-foot models shipped with over-
folded wings (transport rest not installed). If the imple-
ment is a 30-foot model, or was shipped unfolded, con-
tinue at “Install Wing Gauge Wheels” on page 21.
Unfold Over-Folded Wings
Fully raise the implement. For 2-point and 3-point, set the
parking stands to maximum height. For 2-point and
Pull-Type, install lift cylinder lock channels on rear
casters. For Pull-Type, install lock channels on center
section gauge wheels.
If only a simple stationary hoist is available, use the fol-
lowing procedure:
Refer to Figure 23
67. Orient the fold cylinders
of the left hand (lower)
under-folded wing so that their rods can extend
without striking implement parts.
68. Connect the hoist to the top end of the right hand
(upper) over-folded wing.
69. Support some of the RH wing weight with the hoist.
70. Loosen the nuts on the U-bolts securing the right
shipping stand to the wing.
71. Increase tension in the hoist until the stand
provides no support. Remove the upper and lower
U-bolts, and the RH stand itself. The stand and the
fasteners are returned to Great Plains.
Note: If an overhead moving crane is available, you can
use it to completely unfold the wings and then con-
nect cylinder rod ends. Lower carefully nearing full
unfold, as the wing end coulters or knives will con-
tact the ground (since the wing gauge wheels are
not yet installed).
72. Lift the wing until the fold cylinder rod ends may be
aligned with the wing lugs.
73. Connect the top wing cylinder rod ends.
74. Close the weight-transfer shut-off valve (see
page 11), if not still open from step 17 on page 11.
75. Operate the fold circuit to unfold the wings. Only the
RH wing unfolds. Reduce the unfolding rate as the
wing end nears the ground. The wing end will be
supported by the outside coulter or knife until the
wing gauge wheels are installed.
76. Disconnect the cylinder rod ends of the RH
(unfolded) wing, to prevent refolding of the RH wing.
Orient the fold cylinders of the unfolded wing so that
their rods can extend without striking implement
parts.
Note: On the 2-Point model NP40L, the lift-assist cylin-
ders attempt to retract during unfold, but are
restrained by the lock channels. They do extend to
full length during fold.
77. Connect the hoist to the top end of the LH (folded)
wing.
78. Support some of the LH wing weight with the hoist.
79. Loosen the nuts on the U-bolts securing the left ship-
ping stand to the wing.
80. Increase tension in the hoist until the stand
provides no support. Remove the upper and lower
U-bolts, and the LH stand itself. The stand and the
fasteners are returned to Great Plains.
81. Lift the wing until the fold cylinder rod ends may be
aligned with the wing lugs. Retract the fold circuit as
needed to achieve alignment.
82. Connect the cylinder rod ends at the LH wing.
83. Operate the fold circuit to unfold the LH wing.
Reduce the unfolding rate as the wing end nears the
ground. The wing end will be supported by the
coulter or knife until the wing gauge wheels are
installed.
84. Connect the cylinder rod ends at the other (RH)
unfolded wing.
Figure 23
Over-Fold Shipping Supports
31710
3
4
1
2
1
2
3
3
4
4