Great Plains NTA2007HD Operator Manual - Manual (Page 36)

32 Great Plains Manufacturing, Inc. Contents Index NTA607/2007HD
166-283M Contents Index 04/04/2011
Unfold: Fully Raise Drill
Note: Gauge wheel cylinder locks are provided for main-
tenance, but are not used in typical storage or
transport. Normally, they are not installed at this
time, and do not need to be removed for lowering.
Refer to Figure 19
6.
Extend the Lift circuit to:
6a. deploy the wing gauge wheels, and
6b. lift the implement frame slightly at the lock.
Hold the circuit at Extend for a few seconds after the
gauge wheels are fully deployed.
Equipment Damage Risk:
Raise before unfolding. If this operation is not performed, the
wing openers contact the ground, drag, and may be damaged.
The center section lift lock may also fail to release during
unfold.
Unfolding: Unfold Wings
7.
Unfold the wings by extending the fold cylinders.
Note: One wing may reach the ground before the other. It
is not uncommon for the folding to be slightly
non-symmetrical.
Refer to Figure 20
Hold the circuit at extended for several seconds after the
gauge wheels contact the ground, to ensure that the cen-
ter lock cylinder activates and disengages the lift lock.
Set circuit to Float or Neutral.
Unfold: Enable Fan
Refer to Figure 17 on page 31
8.
Move fan shutoff valve handle to in-line with valve
body.
Null4:
Null4:
Figure 19
Deploy (Lower) Gauge Wheels
31145
Null4:
Figure 20
Wing Unfold Progression
31142