Great Plains NP30A 30-foot Operator Manual - Manual (Page 64)

60 NP30A or NP40A Table of Contents Index Great Plains Manufacturing, Inc.
407-502M Table of Contents Index 2014-05-20
Unfolding and Folding 3-Section & 2012-
5-Section 2-Point
Unfolding 3S & 2012- 5S 2-Point
The 2-Point applicator should only be unfolded in the
field, or fully supported by parking stands and lift-assist
cylinder transport locks.
Unfolding 3S/2012-5S 2-Point (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 52).
3. Raise the 2-Point hitch and perform a lift-assist raise
operation. Set circuit to Neutral.
4. Remove the transport locks (page 44).
5. Install the spacers (page 38).
6. Unfold the wings. Slowly extend the fold cylinders.
After the wings pass vertical, lock channels swing
into contact with the cylinder rods.
Stop the unfold when the wings are approximately
level. Hold at level with circuit Neutral.
7. Retract the lift-assist cylinders to lower the applicator
at the rear, and lower the 2-point hitch in the front.
8. Set the hitch to Depth Control mode.
Set both fold and lift-assist circuits to Float.
9. Open the weight-transfer shut-off valve.
Unfolding 3S/2012-5S 2-Point (Service)
To unfold, off field, for servicing, unfold with the center
section fully raised. Unless the wing gauge wheels have
been previously extended to maximum height, or extra
stands or supports are used, the wing end knives or tines
will reach the ground first. Take precautions if parking
surface damage is a concern.
1. Point the applicator into the wind.
2. Close the weight-transfer shut-off valve (page 52).
3. Raise the 2-Point hitch.
4. If transport locks are not yet installed, perform a
lift-assist raise operation. Set circuit to Neutral.
Remove spacers (page 38). Install lift-assist
transport locks (page 44).
5. Deploy parking stands. Set them to maximum height.
6. Extend fold cylinders.
7. As the wings near level, set circuit to Neutral.
8. Unless using blocks or stands, fully extend the
gauge wheels to maximum height.
9. Resume unfolding until gauge wheels are on ground.
Set fold circuit to Float.
10. Lower the lift-assist onto the lock channels. Set lift
circuit to Float.
11. Lower the 2-point hitch.
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.