Unfolding and folding, Unfolding (at field) – Great Plains NP4000B Operator Manual User Manual
Page 60

56
2013+ NP4000/A/B
Great Plains Manufacturing, Inc.
417-199M
2014-05-14
Unfolding and Folding
Unfolding (At Field)
These instructions presume the applicator has just
completed transport, is raised, and transport locks are
installed. It is being unfolded for field use.
1.
Remove the wing lock pins (page 50).
Set the FOLD / FIELD switch to
FOLD / UNFOLD.
3.
Extend the fold/lift circuit to unfold the wings
4.
Retract the fold/lift circuit slightly to raise the lift-
assist off the lock channels.
5.
Set all circuits to Neutral. Shut off the tractor.
6.
Remove the lift-assist lock channels (page 50).
Install the spacers (page 43).
7.
If wing gauge wheels were extended, crank them to
field height (page 91).
8.
Lower the hitch to field height.
Notes about normal unfold:
• Inner wings unfold first. The outer wings are
constrained by the wing latches (page 50).
• Outer wings unfold last. The wing latches release just
before the inner wings are level.
• Wings do not unfold to below wings-level.
Machine Damage Risk:
Set the switch to UNFOLD. If set to PARK or FIELD, the
wings may unfold to below level and drag inward on the
ground.
Figure 31
FOLD / FIELD Switch for Unfold
34918
Figure 32
Normal Unfold Sequence
34920