Great Plains Manufacturing, Inc.
Operating Instructions
33
04/09/2019
166-283M
Fold: Summary of Steps
Fold the air drill for moves between fields, transport over
public roads, parking and storage.
Follow the detailed instructions in step 1 through step 12
until this is a familiar operation.
Move to level ground (this page).
Check markers folded (option, page 58).
Clear wing lock lugs (this page).
Fully raise implement (page 37).
Press “Enable Fold” softkey.
Fold wings (page 33).
Install lock pins (page 34).
Lower implement to retract wing gauge wheels for
transport clearance (page 36).
Fold: Check Drill Configuration
1. Make sure markers, if installed, are fully folded
(page 58).
Fold: Move to Level Ground
2. Move the drill to level ground with adequate
overhead and lateral clearances for the fold
operation.
3. Locate the wing lock pins
. Make sure they are not
in the wing lock lugs
.
Fold: Close Fan Shut-Off Valve
4. Move the valve handle ( in
) perpendicu-
lar to valve body. This valve is located at the front of
the seed cart, to the left of the hydraulic fan.
Fold: Raise Drill
5. Extend the lift cylinders to full raise drill. Hold at
raised for a few seconds. Set circuit to Neutral.
Do not install cylinder lock channels.
Fold: Press Softkey
6. If the “Enable Fold” softkey appears on the seed
monitor console, press it. Depending on recent
machine operations, this key may or may not appear.
If it does not appear, Fold is already enabled.
Fold: Fold Wings
7. Activate the fold/tilt/marker circuit to retract the fold
cylinders.
Note: One wing may reach the stop before the other. A
slight asymmetry is not uncommon in folding.
8. When both wings are in contact with their stops, hold
circuit in extend for a few seconds to engage center
section lock cylinder. Set fold/fan circuit to Neutral
(not Float) to hold at folded.
Null4:
Figure 21
Wing Lock Pin and Lugs
31151
3
2
Null4:
Figure 22
Wing Fold Progression
31143
