Great Plains NP4000B Operator Manual - Manual (Page 54)

50 2013+ NP4000/A/B Table of Contents Index Great Plains Manufacturing, Inc.
417-199M Table of Contents Index 2014-05-14
Applicator Locks
The Nutri-Pro
®
NP4000 Applicator is equipped with
several lock systems, which provide safety and/or
operational functions. Manual locks require operator
intervention for specific tasks. Automatic locks require no
intervention, but you may need to be aware of their
function.
Lift-Assist Lock Channels
Refer to Figure 22
These 11 inch (28 cm) length manual lock channels
are installed on the rear lift-assist cylinders for
adjustments, transport, parking, storage and raised
servicing. The locks are held in place by a bent pin
.
Fully raise the applicator (page 51) to install or remove
the channels at the cylinder rods.
When not in use, the channels are stored on tubes on
the caster side faces.
Wing Lock Pins
Refer to Figure 23
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” on page 58.
Outer Wing Fold Latches
Refer to Figure 24
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
See “Fold/Lift Circuit” on page 49 for functions
controlled by solenoid valves.
3
1
2
Figure 22
Lift-Assist Cylinder Lock Channel
32373
1
2
Figure 23
Wing Lock Pins
34968
4
5
3
4
5
7
6
8
7
Figure 24
Outer Wing Latch
32372
6
7
8