Great Plains NP30A 30-foot Operator Manual - Manual (Page 50)

46 NP30A or NP40A Table of Contents Index Great Plains Manufacturing, Inc.
407-502M Table of Contents Index 2014-05-20
Wing Lock Pins
These pins are present only on NP40A models with
5-section wings (inner and outer wings).
Refer to Figure 28
These pins
are manually inserted after fold, both as a
safety precaution, and to minimize wing-cradle impacts
during transport.
When not engaged, the pins are stored in tubes at the
base of the rest weldment.
See “Folding 3S and 2012- 5S 2-Point” on page 61.
Outer Wing Fold Latches
These pins are present only on NP40A models with
5-section wings (inner and outer wings).
Refer to Figure 29
These latches are automatic, and should never require
operator action. The latches couple the outer wing to the
inner wing when folded, preventing movement of the
outer wing during transport (the two outer wings might
otherwise be able contact each other in unusual
circumstances).
When unfolded, the latch pivots out and down
(disengaged). During fold, the outer wing folds first, until
the stop posts
contact each other. As the inner wing
then folds, and passes vertical, the latch swings into
engagement on the pins of the outer wing stop post.
At the start of unfold, the latches restrain the outer wings,
causing the inner wings to unfold first. As the inner wings
near the ground, the latches fall away, allowing the outer
wings to unfold.
Solenoid Valves
These valves are present only on 2013+ 2-Point NP40A
models. They normally require no operator attention.
See “2013+ NP40A 2P Fold/Lift Circuit” on page 47 for
functions controlled by solenoid valves.
See “Unfold Stop Adjustment” on page 122 and See
“Field Fold Stop Adjustment” on page 123.
Figure 28
Wing Lock Pins
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Figure 29
Outer Wing Latch
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