GREAT PLAINS Yield-Pro 3P4025AH Guide

FIELDADJUSTMENTGUIDE
Document #PLUS300C-0002A
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Document # PLUS300C-0002A
Planters
3-Point Stack-Fold Air-Pro Planter
Proper servicing and adjustment is key to the long life of all farm equipment. With careful and systematic
inspection of equipment, costly maintenance, time and repair can be avoided. The following information
will assist with recommended servicing and adjustments:
48775
Models Affected:3P4025AH
Date: September 23, 2015
General Information

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Folding The Planter:
Prior to folding the planter, move to a level surface that pro-
vides clearance needed to fold the planter.
1) Put the tractor in Park and install the flex lock pin (1)
(installed in the inner wing pivot assembly).
2) Remove the wing lock pin (2) if installed.
Note: To prevent machine damage, ensure that the inner wing
pins are in and the outer wing pins are out during folding and
unfolding.
3) Use the tractor’s 3-point hitch to raise the planter until all
row units clear the ground.
4) Use the hydraulic circuit to fully raise the lift-assist circuit (if
present).
5) Slowly move the Fold hydraulic circuit lever to Retract.
Observe the fold process until both wings reach the fully
folded position.
6) Set the tractor’s hydraulic lever to Neutral to hold the
planter in the Fold position.
Unfolding The Planter:
1) Put the tractor in Park and verify that the wing lock pins are
not installed in the lower holes.
2) Using the tractor’s 3-point hitch, raise the planter so that the
row units are off the ground if not already done.
3) Slowly move the Fold hydraulic circuit lever to Extend.
Observe the unfolding process until both wings reach the fully
unfolded position.
4) Set the tractor’s hydraulic lever to Neutral to hold the
planter in the Unfolded position.
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Transport The Planter:
When transporting the planter more than a short distance, do
not rely solely on the lift-assist cylinders to keep the machine
raised. Install the transport locks per the following instructions:
1) Fully raise the planter using the 3-point arms followed by
the lift-assist cylinders.
2) Remove any height adjusting blocks (3) from the lift-assist
cylinders.
3) Install the transport locks (4) onto the cylinder rods, secur-
ing them with the same pins used for storage.
4) Lower the lift-assist cylinders onto the transport locks to
relieve hydraulic pressure while leaving the 3-point arms
raised.
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Initial Planter Height:
The planter is designed to operate with the main tool bar 26
inches above the planting surface.
1) Completely lower the 3-point hitch along with the lift-assist
cylinders. If necessary, first raise the lift-assist cylinders off of
the transport locks and remove them.
2) Raise the 3-point hitch until the tool bar is 26 inches above
the planting surface. Set the 3-point lever stop in the tractor for
future reference.
3) Place a level on the center frame and slowly begin to raise
the lift-assist cylinders until the frame is level.
4) Ensure that the tool bar still measures 26 inches and insert
depth blocks (5) on to the lift-assist cylinders. This will act as a
depth stop during field operation.
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26”
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Leveling The Wings:
Ensure that the center section of the planter is level before
adjusting the outer wings. Note: Place a level on the wings
tool bar to determine what adjustment needs to be made.
1) Loosen the jam nut (6) at the upper link adjustment arm.
2) Remove the bolt (7) and slide the locking plate (8) away
from the adjustment nut.
3) Rotate the adjustment (9) until the wing is level.
4) Secure the jam nut and re-install the locking plate. Note: If
the wings are adjusted, it may be necessary to adjust the
gauge wheel also.
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9
Gauge Wheel Tension:
Note: Prior to adjusting the gauge wheels, the planters center
and wing sections must be level and aligned along with the
tool bar height set at 26 inches from the ground.
1) Unfold the planter onto a level surface.
2) Raise the planter so that the gauge wheels are just off the
ground.
3) Loosen the top nut (10) just above the yoke block.
4) Raise of lower the planter so that the base of the tool bar is
26 inches from the ground.
5) Using an open-ended wrench or adjustable wrench at the
integral hex nut (11), rotate the link until the spring is just
touching the yoke block with neither gap nor compression.
6) Re-tighten the top nut (10).
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Ground Drive Adjustments:
When planting, if the monitor indicates under seeding, check the
ground drive to see if it is slipping and adjust as necessary.
1) Raise the planter so that the gauge wheels are just off the
ground.
2) Loose the top nut (12) just above the yoke block.
3) Using an open-ended or adjustable wrench at the integral hex
nut (13), rotate the link to adjust the gauge wheel tension. Using
the base of the link flange, and the pivot grease zerk (14) as ref-
erence points, increase the distance to increase the down-force
on the gauge wheel.
4) Once the desired tension is achieved, re-tighten the top nut
(12).
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Adjusting Down Pressure:
1) Use a 1 1/8 inch open-ended wrench or the provided tool
stored on the planter. Position the wrench on the adjusting nut
and pull back and down on the wrench to adjust the cam to a
new setting.
Note: Do not set all rows higher than notch 4 as using this set-
ting on all rows will create an uneven depth control and improper
function.
2) Minimum and maximum settings are indicated by the position
of the adjusting cam. Each notch on the adjusting cam will
increase or decrease the down pressure.
27065
Maximum
Setting
Minimum
Setting
Adjusting Hydraulic Down Pressure:
1) Individually set each row unit to have a mechanical down
pressure setting on 3.
2) Set the tractor’s hydraulic lever to constant flow to provide
constant pressure to the down-pressure cylinders. Release the
locking disk (15) and turn the knob (16) on the pressure control
valve.
3) While turning the adjustment knob, observe the pressure
gauge (17) and set the desired pressure. Adjusting the knob
clockwise will increase the down pressure while adjusting the
knob counterclockwise will decrease the overall down pressure.
Note: The recommended pressure range for the planter is
between 400 psi and 600 psi.
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16
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Adjusting Disc Contact:
1) Completely raise the planter and install the transport locks
onto the lift-assist cylinders.
2) Remove the side gauge wheels on the row unit to be
adjusted.
3) Remove the bolt (18) retaining the opener disc to the row unit.
Carefully remove the disc (19), noting how many spacers (20)
are outside the disc and inside the disc. Note: Do not lose the
hub components and spacers.
4) To reduce the spacing between the disc, move one spacer
from the inside to the outside of the disc.
5) Re-assemble and check the disc contact for further adjust-
ments.
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Unit-Mounted Coulter Adjustment:
The ideal operating depth for unit-mounted coulters is 1/4 inch
above the opener depth. Although the coulters may have origi-
nally been set to this depth, coulter blades wear with time, and
may need to be adjusted.
1) Determine which hole will position the coulter closet to 1/4
inch above the opener depth.
2) Remove the bolt, lock washer and nut holding the coulter
blade in place.
3) Move the blade to the new position and fasten it to the
mount using the existing hardware.
Hole No. Depth of (new) coulter blade relative
to (new) opener blades
2 1in (25mm) above
3 5/8in (16mm) above
5 1/4in (6mm) above
1 0 (factory setting)
4 3/8in (10mm) below
6 3/4in (19mm) below
1
2
3
4
6
5
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Shutter Adjustment:
The seed inlet shutter regulates the volume of bulk seed pre-
sented to the seed disk. Known as seed pool slopes, they
need to be set for each different material being used. Original
production meters included six settings for the shutter. Current
production meters have three additional settings midway
between 1 & 2, 2 & 3, 3 & 4.
Setting Setting Typically Used For
Top Closed: Row Shut Off: Meter Re-Fill
I Small Seeds, Milo with little or no treatments
II Small treat seeds and edible beans (Soybean)
III Corn, round popcorn
IIII Large corn, or heavily treated
Bottom Wide open: Clean-Out
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Upper Drive Sprocket Adjustment:
1) If the sprocket selection needs to be changed, loosen the
bolt on the forward idler (21) and slide the idler to the bot-
tom of its track.
2) Remove the split plastic spacer (22).
3) Move the spacer to the other side of the sprocket pair,
sliding the sprocket pair (23) left or right to make room.
4) Lift the chain off of the sprocket formerly in use, and
move it to the sprocket to be used.
5) Slide the forward idler (21) up, allowing 1/4 inch slack in
the longest chain span and tighten the bolt.
Transmission Sprocket Adjustment:
1) Loosen the bolt on the forward idler (24) and slide the
idler to the bottom of its track.
2) Remove the lynch pins from both the driving (25), and
driven (26) shafts.
3) As needed, exchange the existing sprocket pair for the
new desired pair.
4) Slide the idler (24) up, allowing 1/4 inch slack in the lon-
gest chain span and tighten the bolt.
5) Store the removed and any loose sprockets on the spin-
dle shaft (27) and re-pin it.
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25
26
27
Lower Range Sprocket Adjustment:
1) Loosen the bolt on the forward idler (28), and slide the
idler to the bottom of its track.
2) Remove the lynch pins from both the driving (29) and
driven (30) shafts.
3) Exchange the existing low range sprockets with the new
desired sprockets.
4) Once the sprockets are installed, slide the front idler (28)
up, allowing 1/4 inch slack in the longest chain span and
tighten the bolt.
5) Store the alternate sprockets and re-pin.
Note: Ensure that all ground drives are configured identi-
cally.
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