Great Plains NP30A 30-foot Operator Manual - Manual (Page 62)

58 NP30A or NP40A Table of Contents Index Great Plains Manufacturing, Inc.
407-502M Table of Contents Index 2014-05-20
Unfolding and Folding
Nutri-Pro
®
applicators differ in locks and operational
steps:
• Pull-Type applicators have a simple dedicated fold
system with no wing locks. See “Unfolding and
Folding Pull-Type” below.
• 3-Point applicators have wing locks requiring reset
prior to fold. See “Unfolding and Folding 3-Point” on
page 59.
• 2-Point applicators have a lift-assist that usually
requires reconfiguring just prior to unfold and fold.
Additional steps vary with configurations:
On 3-section, and 2012- 5-section, wing locks require
reset prior to fold. See “Unfolding and Folding
3-Section & 2012- 5-Section 2-Point” on page 60.
2013+ 5-section applicator require a switch setting
change. See “Unfolding and Folding 2013+
5-Section 2-Point” on page 62
Unfolding and Folding Pull-Type
The pull-type applicator has no particular restrictions on
unfolding or folding on or off the field. As long as the lift
circuit is fully raised, knife/tine strike is not an issue.
Unfolding Pull-Type
Unfolding Pull-Type (At Field)
These instructions presume the applicator has just
completed transport, and is being unfolded for field use.
1. Point the applicator into the wind.
2. Close the weight-transfer shut-off valve (page 48).
3. Extend the fold cylinders to unfold.
4. Set control to Float when wing gauge wheels contact
the ground.
5. Extend the lift circuit (page 49) to raise the applicator
fully.
6. Remove and store the transport locks at center
section and lift-assist cylinders (page 44). If wing lift
cylinder lock channels were installed. Remove them
and re-engage hydraulic depth stop (page 45).
7. Open the weight-transfer shut-off valve.
8. If lined up at field, retract the lift circuit to lower the
applicator to height set by the hydraulic depth stop
(page 85).
9. Set the lift circuit to Float.
Folding Pull-Type
These instructions presume the applicator has just
completed application, and is being folded for transport
or parking.
1. Stop NH
3
flow (page 76), which includes heading
into the wind, and raising the applicator out of the
ground.
2. Close the weight-transfer shut-off valve (page 48).
3. Wait for the lines to discharge.
4. When the applicator is safe to approach, re-extend
the lift circuit to assure that it is fully raised.
5. Install lock channels at the lift-assist and center
section lift cylinders (page 44).
6. Retract the fold cylinders to fold the wings.
7. Stop, circuit in Neutral, when both wings are on the
transport rest.
8. Leave the fold circuit in Neutral for transport, or set
the to Float for unhitching.
Loop Ammonia Exposure Hazard:
Allow no one down-wind of the applicator when folding and
unfolding. Delivery tubing loops may contain liquid NH
3
that
can drain out of knives or tines during wing movement. This
liquid can remain in the loops long after application has
ended.
After parking overnight or longer, any liquid present may be
highly caustic ammonium hydroxide (concentrated NH
4
OH, a
solution of NH
3
and atmospheric moisture) rather than pure
NH
3
. Assume any liquid in loops is extremely hazardous.
Take full NH
3
field precautions.
Ammonia Exposure Hazard:
Face applicator up-wind or clear the delivery lines (page 111)
before unfolding or folding. Fluid in delivery line loops,
whether pure NH
3
or concentrated NH
4
OH, is likely to move
from the loops and drip out at the knives or tines.