Page 1
Operator’s Manual
2525P and 2520P
3-Point Precision Seeding System
Manufacturing, Inc.
www.greatplainsmfg.com
Read the operator’s manual entirely. When you see this symbol, the subsequent
instructions and warnings are serious - follow without exception. Your life and
!
the lives of others depend on it!
22705
Illustrations may show optional equipment not supplied with standard unit.
© Copyright 2010 Printed 4/23/2010
118-915M
Page 2
Table of Contents
Important Safety Information . . . . . . . . . . . . . . . . . 1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Description of Unit . . . . . . . . . . . . . . . . . . . . . . . 12
Intended Usage. . . . . . . . . . . . . . . . . . . . . . 12
Models Covered in this Manual. . . . . . . . . . 12
Using This Manual. . . . . . . . . . . . . . . . . . . . . . . 13
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . 14
Preparation and Setup. . . . . . . . . . . . . . . . . . . . . . 15
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . 15
Hitching Tractor to Drill . . . . . . . . . . . . . . . . . . . 15
Hydraulic Hose Hookup . . . . . . . . . . . . . . . 16
Leveling the Drill . . . . . . . . . . . . . . . . . . . . . . . . 17
Operating Instructions . . . . . . . . . . . . . . . . . . . . . 20
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . 20
Field Operation . . . . . . . . . . . . . . . . . . . . . . . . . 21
Meter and Sliding Seed Tube . . . . . . . . . . . 22
Opener Operation . . . . . . . . . . . . . . . . . . . . 23
Marker Operation . . . . . . . . . . . . . . . . . . . . 23
Transporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Transporting with Markers. . . . . . . . . . . . . . 24
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Side Gauge Wheels. . . . . . . . . . . . . . . . . . . . . . 25
20 Series Openers . . . . . . . . . . . . . . . . . . . . . . 26
Opener Down Pressure. . . . . . . . . . . . . . . . 26
Opener Seeding Depth . . . . . . . . . . . . . . . . 27
Press Wheel . . . . . . . . . . . . . . . . . . . . . . . . 27
25 Series Openers . . . . . . . . . . . . . . . . . . . . . . 28
Opener Down Pressure. . . . . . . . . . . . . . . . 28
Spring Down Pressure . . . . . . . . . . . . . . . . 29
Opener Seeding Depth . . . . . . . . . . . . . . . . 29
Press Wheel . . . . . . . . . . . . . . . . . . . . . . . . 30
Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . 31
25 Series Lock-Up. . . . . . . . . . . . . . . . . . . . 31
Frame Height. . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Single Gauge Wheel . . . . . . . . . . . . . . . . . . 32
Dual Gauge Wheels . . . . . . . . . . . . . . . . . . 32
Seeding Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Maintenance and Lubrication . . . . . . . . . . . . . . . . 60
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Veris Drive Operating Instructions . . . . . . . . . . . . 76
Seed Rate Charts . . . . . . . . . . . . . . . . . . . . . . . . . 100
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Cleaning Out Meters . . . . . . . . . . . . . . . . . . 35
Finger Pickup Meter. . . . . . . . . . . . . . . . . . . 36
Changing Seed Meter Wheel for
20 Series Openers . . . . . . . . . . . . . . . . . . . . . . . 37
Changing Seed Meters for 25 Series
Openers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Changing Seed Meter Wheel for
25 Series Openers . . . . . . . . . . . . . . . . . . . . . . . 43
Adjusting Finger Pick Up Meter . . . . . . . . . . . . . 44
General Planting Tips . . . . . . . . . . . . . . . . . 44
Brush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Population Max Inserts . . . . . . . . . . . . . . . . 44
Checking Volumetric Seeding Rate . . . . . . . 45
Checking Singulated Seeding Rate . . . . . . . 46
Marker Adjustments . . . . . . . . . . . . . . . . . . . . . . 48
Bleeding Marker Hydraulics . . . . . . . . . . . . . 48
Folding Speed with Needle Valves. . . . . . . . 49
Folding Speed with Sequence Valve . . . . . . 49
Marker Disk Adjustment. . . . . . . . . . . . . . . . 49
Changing disk angle . . . . . . . . . . . . . . . . . . 49
Marker Chain . . . . . . . . . . . . . . . . . . . . . . . . 50
Transport Carrier . . . . . . . . . . . . . . . . . . . . . 50
Marker Width . . . . . . . . . . . . . . . . . . . . . . . . 51
Seed-Lok™ Lock Up . . . . . . . . . . . . . . . . . . . . . 53
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Seed Flap Replacement. . . . . . . . . . . . . . . . . . . 69
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Torque Values Chart. . . . . . . . . . . . . . . . . . . . . 152
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . 153
Specifications and Capacities . . . . . . . . . . . . . 153
Dual Gauge Wheel Sprocket Configuration . . . 154
Single Gauge Wheel Sprocket Configuration. . 155
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Drive Speed Range Sprockets . . . . . . . . . . 33
Transmission Sprockets . . . . . . . . . . . . . . . 33
Shutting Off Seed Flow . . . . . . . . . . . . . . . . 34
© Copyright 2004, 2010 All rights Reserved
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either express or implied. While every precaution has been taken in the
preparation ofthis manual,Great PlainsManufacturing, Inc.assumes noresponsibility for errors or omissions. Neither is any liability assumed fordamages resultingfrom
the use of the information contained herein. GreatPlains Manufacturing, Inc. reserves theright to revise and improve its products as it sees fit. Thispublication describes
the state of this product at the time of its publication, and may not reflect the product in the future.
The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains
All other brands and product names are trademarks or registered trademarks of their respective holders.
4/23/2010
Great Plains Manufacturing, Incorporated Trademarks
Printed in the United States of America.
118-915M
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Important Safety Information
Look for Safety Symbol
The SAFETY ALERT SYMBOL indicates there is
a potential hazard to personal safety involved and
extra safety precaution must be taken. When you
see this symbol, be alert and carefully read the
message that follows it. In addition to design and
configuration of equipment, hazard control and
accident prevention are dependent upon the
awareness, concern, prudence and proper training of personnel involved in the operation,
transport, maintenance and storage of
equipment.
Important Safety Information
1
Be Aware of Signal Words
Signal words designate a degree or level of hazard seriousness.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This signal word is limited to the
most extreme situations, typically for machine
components that, for functional purposes, cannot
be guarded.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury, and includes hazards that are exposed when guards are removed. It may also be
used to alert against unsafe practices.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.
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2525P and 2520P
2
Be Familiar with Safety Decals
▲ Read and understand “Safety Decals,” page 7,
thoroughly.
▲ Read all instructions noted on the decals.
Keep Riders Off Machinery
Riders obstruct the operator’s view. Riders could
be struck by foreign objects or thrown from the
machine.
▲ Never allow children to operate equipment.
▲ Keep all bystanders away from machine dur-
ing operation.
Shutdown and Storage
▲ Lower drill, put tractor in park, turn off engine,
and remove the key.
▲ Secure drill using blocks and supports pro-
vided.
▲ Detach and store drill in an area where chil-
dren normally do not play.
Use Safety Lights and Devices
Slow-moving tractors and towed implements can
create a hazard when driven on public roads.
They are difficult to see, especially at night.
▲ Use flashing warning lights and turn signals
whenever driving on public roads.
▲ Use lights and devices provided with imple-
ment.
OFF
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Transport Machinery Safely
Maximum transport speed for implement is 20
mph. Some rough terrains require a slower
speed. Sudden braking can cause a towed load to
swerve and upset.
▲ Do not exceed 20 mph. Never travel at a
speed which does not allow adequate control
of steering and stopping. Reduce speed if
towed load is not equipped with brakes.
▲ Comply with state and local laws.
▲ Do not tow an implement that, when fully
loaded, weighs more than 1.5 times the weight
of towing vehicle.
▲ Carry reflectors or flags to mark drill in case of
breakdown on the road.
▲ Keep clear of overhead power lines and other
obstructions when transporting.
Important Safety Information
3
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the
skin, causing serious injury.
▲ Avoid the hazard by relieving pressure before
disconnecting hydraulic lines.
▲ Use a piece of paper or cardboard, NOT
BODY PARTS, to check for suspected leaks.
▲ Wear protective gloves and safety glasses or
goggles when working with hydraulic systems.
▲ If an accident occurs, see a doctor immedi-
ately. Any fluid injected into the skin must be
surgically removed within a few hours or gangrene may result.
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2525P and 2520P
4
Practice Safe Maintenance
▲ Understand procedure before doing work. Use
proper tools and equipment. Refer to this manual for additional information.
▲ Work in a clean, dry area.
▲ Lower the drill, put tractor in park, turn off
engine, and remove key before performing
maintenance.
▲ Make sure all moving parts have stopped and
all system pressure is relieved.
▲ Allow drill to cool completely.
▲ Disconnect battery ground cable (-) before
servicing or adjusting electrical systems or
before welding on drill.
▲ Inspect all parts. Make sure parts are in good
condition and installed properly.
▲ Remove buildup of grease, oil or debris.
▲ Remove all tools and unused parts from drill
before operation.
Prepare for Emergencies
▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extinguisher handy.
OFF
▲ Keep emergency numbers for doctor, ambu-
lance, hospital and fire department near
phone.
Wear Protective Equipment
▲ Wear protective clothing and equipment.
▲ Wear clothing and equipment appropriate for
the job. Avoid loose-fitting clothing.
▲ Because prolonged exposure to loud noise
can cause hearing impairment or hearing loss,
wear suitable hearing protection such as earmuffs or earplugs.
▲ Because operating equipment safely requires
your full attention, avoid wearing radio headphones while operating machinery.
911
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Page 7
Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals,
plants, soil and property.
▲ Read and follow chemical manufacturer’s
instructions.
▲ Wear protective clothing.
▲ Handle all chemicals with care.
▲ Avoid inhaling smoke from any type of chemi-
cal fire.
▲ Store or dispose of unused chemicals as
specified by chemical manufacturer.
Use A Safety Chain
▲ Use a safety chain to help control drawn
machinery should it separate from tractor
drawbar.
Important Safety Information
5
▲ Use a chain with a strength rating equal to or
greater than the gross weight of towed
machinery.
▲ Attach chain to tractor drawbar support or
other specified anchor location. Allow only
enough slack in chain to permit turning.
▲ Replace chain if any links or end fittings are
broken, stretched or damaged.
▲ Do not use safety chain for towing.
Tire Safety
Tire changing can be dangerous and should be
performed by trained personnel using correct
tools and equipment.
▲ When inflating tires, use a clip-on chuck and
extension hose long enough for you to stand
to one side–not in front of or over tire assembly. Use a safety cage if available.
▲ When removing and installing wheels, use
wheel-handling equipment adequate for
weight involved.
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2525P and 2520P
6
Safety At All Times
Thoroughly read and understand the instructions
in this manual before operation. Read all instructions noted on the safety decals.
▲ Be familiar with all drill functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave drill unattended with tractor
engine running.
▲ Do not dismount a moving tractor. Dismount-
ing a moving tractor could cause serious injury
or death.
▲ Do not stand between the tractor and drill dur-
ing hitching.
▲ Keep hands, feet and clothing away from
power-driven parts.
▲ Wear snug-fitting clothing to avoid entangle-
ment with moving parts.
▲ Watch out for wires, trees, etc., when folding
markers or raising drill. Make sure all persons
are clear of working area.
▲ Do not turn tractor too tightly, causing drill to
ride up on wheels. This could cause personal
injury or equipment damage.
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Page 9
Important Safety Information
7
Safety Decals
Your implement comes equipped with all safety
decals in place. They were designed to help you
safely operate your implement.
▲ Read and follow decal directions.
▲ Keep all safety decals clean and legible.
▲ Replace all damaged or missing decals. Order
new decals from your Great Plains dealer.
Refer to this section for proper decal placement.
▲ When ordering new parts or components, also
request corresponding safety decals.
▲ To install new decals:
1. Clean the area on which the decal is to be
placed.
2. Peel backing from decal. Press firmly on
surface, being careful not to cause air
bubbles under decal.
818-003C
Slow Moving Vehicle Label
838-266C
Red Reflectors
Reflectors on outside ends and off center of walkboards; four reflectors total.
17769
19189
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2525P and 2520P
8
838-265C
Amber Reflectors
Reflector on both ends of drill; four reflectors total.
18262
838-267C
Decal Reflectors Daytime
Reflectors on inside ends and off center on walkboards next to red reflectors; four reflectors total.
818-339C
High Pressure Hazard
19189
18262
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818-587C
General Instructions
Important Safety Information
18262
9
818-590C
Crushing Hazard
838-102C
Falling Hazard
4/23/2010
1826218262
19195
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2525P and 2520P
10
818-398C
Falling Hazard
19197
818-855C
Tire Pressure
818-229C
Amber Reflector
Reflector on each optional marker.
19197
18270
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818-682C
Crushing Hazard
Two decals on first section of each optional marker;
four decals total.
Important Safety Information
1827018270
11
818-337C
Excessive Speed Hazard
818-752C
Tire Pressure
4/23/2010
21641
21641
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2525P and 2520P
12
Introduction
Great Plains welcomes you to its growing family of
new product owners. This drill has been designed
with care and built by skilled workers using quality
materials. Proper setup, maintenance and safe
operating practices will help you get years of satisfactory use from the machine.
Description of Unit
The 2525P and 2520P model drills are a 3-point
mounted precision seeding system equipped with
25 and 20 Series openers. The openers are staggered for easy residue flow. Opener depth can be
adjusted.
Intended Usage
Use the drill to seed production-agriculture crops
only. Do not modify the drill for use with attachments other than Great Plains options and
accessories specified for use with the drill.
Models Covered in this Manual
2525P and 2520P
22705
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Page 15
Using This Manual
This manual will familiarize you with safety, assembly, operation, adjustments, troubleshooting
and maintenance. Read this manual and follow
the recommendations to help ensure safe and efficient operation.
The information in this manual is current at printing. Some parts may change to assure top
performance.
Definitions
The following terms are used throughout this
manual.
Singulated Seeds - seeds that are metered individually, such as soybeans, corn, cotton and milo.
The seed meter separates individual seeds from
the seed pool and distributes them one at a time.
The seed rates are designated as seeds per acre.
Introduction
13
Volumetric Seeds - seeds that are metered by volume such as wheat and rice. The seed meter
separates multiple seeds from the seed pool and
distributes them at a constant flow rate. The seed
rates are designated as pounds per acre.
Sliding seed tubes - telescoping tubes which connect the seed box and seed meters.
Seed meter - the component which separates the
seeds for distribution.
Seed meter wheel - a changeable wheel inside
the seed meter with small pockets for separating
seeds.
Seed wheel pockets - indentations on the seed
meter wheel which collect seeds for distribution to
the opener seed tube.
Refer to Figure 1
Right-hand and left-hand as used in this manual
are determined by facing the direction the machine will travel while in use unless otherwise
stated.
Machine travel
direction
Left-hand
side
Right-hand
side
A crucial point of information related to the preceding topic. For safe and correct operation, read and
follow the directions provided before continuing.
NOTE: Useful information related to the preceding topic.
4/23/2010
Figure 1
18327
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2525P and 2520P
14
Owner Assistance
If you need customer service or repair parts, contact a Great Plains dealer. They have trained
personnel, repair parts and equipment specially
designed for Great Plains products.
Refer to Figure 2
Yourmachine’s parts were specially designedand
should only be replaced with Great Plains parts.
Always use the serial and model number when ordering parts from your Great Plains dealer. The
serial-number plate is located on the main frame
tube on the left end of the drill.
Record your drill model and serial number here for
quick reference:
Model Number:__________________________
Serial Number: ___________________________
Your Great Plains dealer wants you to be satisfied
with your new machine. If you do not understand
any part of this manual or are not satisfied with the
service received, please take the following
actions.
1. Discuss the matter with your dealership service manager. Make sure they are aware of
any problems so they can assist you.
2. If you are still unsatisfied, seek out the owner
or general manager of the dealership.
3. For further assistance write to:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
Figure 2
Serial Number Plate
18307
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Page 17
Preparation and Setup
This section will help you prepare your tractor and
drill for use. Before using the drill in the field, you
must hitch the drill to a suitable tractor and level
the drill.
Prestart Checklist
1. Read and understand “Important Safety Information,” page 1.
2. Check that all working parts are moving freely, bolts are tight, and cotter pins are spread.
3. Check that all grease fittings are in place and
lubricated. Refer to “Lubrication,” page 71.
4. Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged. See “Safety Decals,” page 7.
Preparation and Setup
15
5. Inflate tires to pressure recommended and
tighten wheel bolts as specified. See “Appendix,” page 152.
Hitching Tractor to Drill
You may be severely injured or killed by being crushed
between the tractor and drill. Do not stand or place
any part of your body between drill and moving tractor. Stop tractor engine and set park brake before installing the hitch pin.
1. Raise or lower tractor three-point arms as
needed and pin lower arms to drill.
2. Pin upper arm to drill. For category III and IIIN tractors, install hitch pin in the lower hole.
For category IV-N tractors, install hitch pin in
the upper hole.
3. Slowly raise drill. Watch for cab interference.
4. Adjust top three-point link so that top edge of
drill box is parallel with ground when drilling.
NOTE: Do not use link to adjust opener depth. For
opener adjustments, refer to page 25.
5. Set your tractor three-point-draft control to
float position.
6. Plug lead from drill light harness into tractor
receptacle.
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2525P and 2520P
16
Hydraulic Hose Hookup
Refer to Figure 3
Great Plains hydraulic hoses are color coded to
help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are
marked with the same color.
Color Hydraulic Function
Orange Marker Cylinders
To distinguish hoses on the same hydraulic circuit, refer to plastic hose holder. Hose under
extended-cylinder symbol feeds cylinder base
ends. Hose under retracted-cylinder symbol
feeds cylinder rod ends.
17641
Figure 3
Hydraulic Hose Label
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Leveling the Drill
20 Series Opener Single Gauge Wheel
Refer to Figure 4
Initially adjust drill so bottom of opener tube runs
24 inches above ground when drill is lowered in
the field.
Refer to Figure 5
To adjust:
Preparation and Setup
17
1. Make sure block mount of the spring linkage
(2) is in the lower mount hole for planting in
bedded irrigation. The upper hole is for nonbedded ground.
2. Set spring linkage length. Turn spring linkage
to shorten or lengthen as necessary. Initially
set length to 6 1/8 inches between pin centers
to achieve the 24-inch dimension mentioned
above. When adjusting the linkage length, remember:
• Lengthening linkage raises drill.
• Shortening linkage lowers drill.
3. Level drill with top three-point link.
Refer to Figure 6
NOTE: When drill is level, parallel links will be
running slightly uphill towards the front.
The 1-inch dimension shown is a general dimension that will vary with planting conditions.
Make sure the opener mount is running higher than
the opener body. This will ensure an ample reserve
for opener upfloat in case the opener strikes a rock or
other object.
21685
Figure 4
Initial Operating Height
Figure 5
Spring Linkage
18280
4/23/2010
Figure 6
Leveling the Drill
18288
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2525P and 2520P
18
20 Series Opener Dual Gauge Wheels
Refer to Figure 7
Initially adjust drill so bottom of opener tube runs
24 inches above ground when drill is lowered in
the field.
Refer to Figure 8
To adjust:
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Make sure upper clevis (2) is in upper mount
hole as shown.
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 17 1/2 inches between pin centers to
achieve the 24-inch dimension mentioned
above. When adjusting the turnbuckle length,
remember:
Figure 7
Initial Operating Height
18280
• Lengthening turnbuckle raises drill.
• Shortening turnbuckle lowers drill.
4. After adjusting both turnbuckles to the same
length, tighten jam nuts.
5. Level drill with top three-point link.
Refer to Figure 9
NOTE: When drill is level, parallel links will be
running slightly uphill towards the front.
The 1-inch dimension shown is a general dimension that will vary with planting conditions.
Make sure the opener mount is running higher than
the opener body. This will ensure an ample reserve
for opener upfloat in case the opener strikes a rock or
other object.
Figure 8
Gauge-Wheel Turnbuckle
22845
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Figure 9
Leveling the Drill
18288
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25 Series Openers Single Gauge Wheel
Refer to Figure 10
Initially adjust drill so bottom of opener tube runs
26 inches above ground when drill is lowered in
the field.
Refer to Figure 11
To adjust:
1. Make sure block mount of the spring linkage
(2) is in the lower mount hole for planting in
bedded irrigation. The upper hole is for nonbedded ground.
Preparation and Setup
19
2. Set spring linkage length. Turn spring linkage
to shorten or lengthen as necessary. Initially
set length to 6 1/2 inches between pin centers
to achieve the 26-inch dimension mentioned
above. When adjusting the linkage length, remember:
• Lengthening linkage raises drill.
• Shortening linkage lowers drill.
3. Level drill with top three-point link.
Refer to Figure 12
NOTE: When drill is level, parallel links will be
running level or slightly uphill towards the
front.
The 1-inch dimension shown is a general dimension that will vary with planting conditions.
Make sure the opener mount is running higher than
the opener body. This will ensure an ample reserve
for opener upfloat in case the opener strikes a rock or
other object.
22847
Figure 10
Initial Operating Height
Figure 11
Spring Linkage
22530
4/23/2010
Figure 12
Leveling the Drill
22823
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2525P and 2520P
20
Operating Instructions
This section covers general operating procedures. Experience, machine familiarity and the
following information will lead to efficient operation and good working habits. Always operate
farm machinery with safety in mind.
Prestart Checklist
Escaping fluid under pressure can have sufficient pressure to penetrate the skin. Check all hydraulic lines
and fittings before applying pressure. Fluid escaping
from a very small hole can be almost invisible. Use paper or cardboard, not body parts, and wear heavy
gloves to check for suspected leaks. If injured, seek
medical assistance from a doctor that is familiar with
this type of injury. Foreign fluids in the tissue must be
surgically removed within a few hours or gangrene
will result.
1. Carefully read “Important Safety Information,”
page 1.
2. Lubricate drill as indicated under “Lubrication,” page 71.
3. Check all tires for proper inflation. See “Appendix,” page 152.
4. Check all bolts, pins and fasteners. Torque as
shown in “Appendix,” page 152.
5. Check drill for worn or damaged parts. Repair
or replace parts before going to the field.
6. Check hydraulic hoses, fittings and cylinders
for leaks. Repair or replace before going to
the field.
7. Rotate both gauge wheels to see that the
drive and meters are working properly and
free from foreign material.
Watch your step when walking on drill ladder and
walkboard. Falling from drill could cause severe injury or death.
118-915M
4/23/2010
Page 23
Field Operation
You may be severely injured or killed by being crushed
between the tractor and drill. Do not stand or place
any part of your body between drill and moving tractor. Stop tractor engine and set park brake before installing pins.
Operating Instructions
21
1. Hitch drill to asuitable tractor orhitch. Refer to
“Hitching Tractor to Drill,” page 15 or your
hitch operator’s manual.
Refer to Figure 13
2. Make sure proper seed meter wheels are in
place. For information on how to change the
seed meter wheels see page 37.
Refer to Figure 14
3. Make sure all seed meter clean out doors are
closed and pinned. For more information see
page 35.
4. Set seeding rate as explained in “Seeding
Rate”, page 32.
Refer to Figure 15
5. Open and pin sliding seed tubes. For further
information see page 34.
6. Load box with clean seed and talc.
7. Raise drill. Rotate gauge wheel. Check that
seed meters, seed tubes and drives are working properly and free from foreign material by
looking for seed flow under each opener.
Seed
meter
wheel
Figure 13
Seed meter wheel in place
Seed meter
clean out door
Retaining
clip
Figure 14
Seed meter clean out door in closed position
18261
22851
8. Record acremeter readout. Subtract initial
reading from later readings to determine
acres drilled.
9. Pull forward, lower drill and begin seeding.
10. Always lift drill out of the ground when turning
at row ends and for other short-radius turns.
Seeding will stop automatically as drill is
raised.
4/23/2010
Sliding seed
tubes
Figure 15
Sliding seed tubes in open position
22852
118-915M
Page 24
2525P and 2520P
22
Meter and Sliding Seed Tube
Refer to Figure 16
Before operation, make sure you are using the correct seed
meter wheel for the seed you are using.
For information on meter adjustments, refer to “Seeding Rate”,
page 33.
If your drill has been exposed to the elements for a period of time
with seed in the boxes, check to make sure the seed in the seed
tubes and meters has not become wet.
Talc Lubricant (1# bottle P/N: 821-046C)
(5# jug P/N: 821-048C)
All talc is not created equal, use Great Plains brand talc
for optimum seed flow.
Talc lubricant is mandatory for all seeds, especially
treated or inoculated seed.
Recommended usage:
Seed tube
Seed
meter
Opener
seed tube
Sliding
Figure 16
Seed Meter
Spring-loaded
idler
18286
For clean seeds sprinkle (1) one cup of talc per 3
bushels of seed.
For seed with excessive treatment, or for humid planting
environments, double or triple talc rate as needed.
Do not use hands or any part of your body to mix talc
lubricant.
Graphite Lubricant (P/N: 821-042C)
For Milo Planting Only
Powdered graphite must be mixed with the milo seed in
combination with talc for proper seed singulation.
Recommended usage:
For clean seeds sprinkle (1) one cup of graphite per 9
bushels of seed.
For seed with excessive treatment, or for humid planting
environments, double or triple graphite rate as needed.
Graphite Powder (1# bottle P/N: 821-042C)
(5# jug P/N: 821-060C)
For Finger Pick Up Meters Only
Use only approved Graphite Powder available from
Great Plains Mfg. Inc. or Precision Planting to ensure
proper lubrication of finger pick-up corn seed meters.
Recommended usage:
For finger pick up meters, add (1) one teaspoon of
graphite for each 4 units of seed corn (320,000 kernels).
In high humidity conditions or if you are using seedbox
seed treatments, or seed corn treated with any insecticides or polymers (Poncho, Prescribe, Cruiser, etc.),
add one teaspoon of graphite for each unit of seed corn
(80,000 kernels).
Do not use hands or any part of your body to mix graphite
lubricant.
118-915M
Do not use hands or any part of your body to mix graphite
lubricant.
4/23/2010
Page 25
Opener Operation
Do not back up with openers in the ground. To do so
will cause severe damage and opener plugging.
For information on opener adjustments, refer to
page 26 or page 28. For more information on troubleshooting opener problems, see
“Troubleshooting”, page 54.
Marker Operation
Optional marker attachments are available from
your Great Plains dealer. Before operating markers, make sure hydraulics are properly bled as
described under “Marker Adjustments”, page 48.
Dual markers equipped witha sequence valve are
powered off the same hydraulic circuit. Starting
with both markers folded, the folding sequence is:
1. Activate lever - Right unfolds; left stays
folded.
Operating Instructions
23
2. Reverse lever - Right folds; left stays folded.
3. Activate lever - Left unfolds; right stays
folded.
4. Reverse lever - Left folds up; right stays
folded.
5. Sequence repeats.
You can adjust marker folding speed. Refer to
“Marker Adjustments”, page 48, and adjustfolding
speed to a safe rate. Folding markers at high
speed can damage markers.
Transporting
Towing the drill at high speeds or with a vehicle that is
not heavy enough could lead to loss of vehicle control.
Loss of vehicle control could lead to serious road accidents, injury and death. To reduce the hazard, do not
exceed 20 mph. Check that your tractor has enough
ballast to handle the weight of the drill. Refer to your
tractor operator’s manual for ballast requirements.
NOTE: For transporting with drill attached to a
hitch, refer to your hitch operator’s manual.
Before transporting the drill, follow and check
these items:
Unload seed box. Unload seed box before transporting if at all possible. To do so:
4/23/2010
118-915M
Page 26
2525P and 2520P
24
• Place tarp under drill or a bucket under each
• Use large bucket to empty box as much as
The drill can be transported with a full box of grain,
but the added weight will increase stopping distance and decrease maneuverability.
NOTE: To maintain steering control, you may
need to add ballast to your tractor front end.
Refer to your tractor operator’s manual for ballast required.
Road rules. Comply with all federal, state and lo-
cal safety laws when traveling on public roads.
Refer to Figure 17
seed meter.
possible. Make sure sliding seed tubes are in
the open position. Open seed meter clean out
to empty seed out of sliding seed tube and
meter.
Clearance. Remember that the drill is wider than
the tractor. Allow safe clearance. Fold up walkboard ladder for maximum clearance.
Transporting with Markers
Always transport markers in the folded position.
Parking
For information on long-term storage, refer to
“Storage”, page 70.
Empty seed box before unhitching drill to prevent drill
from falling backward.
NOTE: For parking with drill attached to a hitch,
refer to your hitch operator’s manual.
1. Empty seed box.
2. Park drill on a level, solid surface.
3. Lower three-point hitch until drill is on the
ground.
Figure 17
Ladder Folded for Transport
22878
4. Extend or retract the top link of the tractor until
top three-point pin is free. Remove pin.
5. Remove pins from lower links.
118-915M
4/23/2010
Page 27
Adjustments
Adjustments
25
Side Gauge Wheels for 20 and 25 Series
Openers
Refer to Figure 18
The side gauge wheels have two, interrelated adjustments:
• angle of side gauge wheel, and
• distance between side gauge wheel and row unit disk.
Refer to Figure 19
Adjust side-gauge-wheel angle so wheels contact row unit
disks at bottom of wheel at 2” planting depth.
At the same time, keep side gauge wheels close to opener
disks so openers do not plug with soil or trash. However,
wheels should be but far enough out so disks and wheels turn
freely.
• If contact point is between 4 to 8 o’clock but distance
to tire is not correct, add or remove shims as needed. DO
NOT ADJUST BEARING THAT WILL ADJUST WHEELTO-DISK CONTACT AREA ONLY.
Refer to Figure 20
Opener
Disks
Side Gauge
Wheel
Incorrect Correct
Note: Wheel touches at bottom and gaps open
3/8” to 5/8” at top.
Figure 18
Side Gauge Wheels
Side Gauge
Wheel
To adjust Wheel-to-Disk contact area:
1. Raise drill slightly to remove weight from side gauge
wheels.
2. Loosen hex-head bolt (1). Move wheel and arm out on oring bushing.
3. Loosen pivot bolt (2). Turn hex adjuster (3) so indicator
notch (4) is at 5 o’clock to 7 o’clock. Use this as the starting
point for adjustment.
4. Move wheel arm in so side gauge wheel contacts row unit
disk. Tighten hex-head bolt (1) to clamp arm around bushing and shank.
5. Check wheel-to-disk contact at 2” planting depth. Lift
wheel and arm. When let go, wheel should fall freely.
• If wheel does not contact disk at bottom to area where
blade leaves contact with soil, move hex adjuster until
wheel is angled for proper contact with disk.
• If wheel does not fall freely, loosen hex-head bolt (1) and
slide wheel arm out just until wheel and arm move freely.
Retighten hex-head bolt (1) according to grade:
• 1/2” Gr 5 bolt on 25 series, 75 ft-lbs.
• 7/16” Gr 8 bolt on 20 series, 70 ft-lbs.
• 1/2” Gr 8 bolt on 25 series, 110 ft-lbs.
• 5/8” Gr 8 bolt on 20 series, 150 ft-lbs.
4/23/2010
22531
Figure 19
Wheel-to-Disk Contact Area
3
1
2
4
Starting Point
Figure 20
Side Gauge Wheel Adjustment
NOTE: Use “Torque Values Chart”, on page 152
for reference.
6. Keep turning hex adjuster and moving wheel arm
until wheel is adjusted properly. When satisfied,
tighten pivot bolt (2) to 110 foot-pounds.
22525
118-915M
Page 28
2525P and 2520P
26
20 Series Openers
Opener Down Pressure
Refer to Figure 21
Opener springs provide the down pressure necessary for opener disks to open a seed trench.
The springs allow the openers to float down into
depressions and up over obstructions.
You can adjust down pressure individually for
each opener. This is useful for penetrating hard
soil and planting in tire tracks.
Use enough down pressure to cut the seed trench
and maintain proper soil-firming over seed. Excessive opener down force will lead to premature
wear on opener components.
Refer to Figure 22
To adjust down pressure, use adjustment tool
stored under walkboard. Position tool in holes on
spring mounting plates, and pull down. Move the
adjustment cam to the new setting.
Opener spring
Disk
20 Series Opener with Meter
Figure 21
18273
Refer to Figure 23
Minimum and maximum settings are indicated by
position of adjustment cam.
Adjustment
tool
Press Wheel Adjustment
Minimum setting
Adjustment Cam Settings
Figure 22
Figure 23
18409
Maximum setting
12104
118-915M
4/23/2010
Page 29
Opener Seeding Depth
Refer to Figure 24
Side depth wheels beside the opener disks control opener seeding depth. The position of an
adjustable stop determines seeding depth.
Refer to Figure 25
Disk
Adjustments
Side depth wheel
Figure 24
20 Series Side Depth Wheel
27
18273
Set opener seeding depth by adjusting handles.
To adjust, first raise openers slightly, then lift and
slide handles on top of openers. Adjust all handles to the same setting.
• For shallower seeding, slide handles forward
toward drill.
• For deeper seeding, slide handles back away
from drill.
Press Wheel
Press wheels are attached to each opener body.
The press wheels close the seed trench and gently press soil over seed.
An adjustable spring in the press-wheel mechanism creates the down pressure needed to close
the seed trench. The amount of force needed will
vary with field conditions.
Handle
Figure 25
20 Series Opener Depth
Less down
pressure
18285
Refer to Figure 26
To adjust, move adjustment handle as shown in.
• For less down pressure, move handleforward
toward drill.
• For more down pressure, move handle back
away from drill.
NOTE: Increased press wheel spring force
may require increased opener down force to
maintain depth.
4/23/2010
Figure 26
Press Wheel Adjustment
More down
pressure
16629
118-915M
Page 30
2525P and 2520P
28
NOTE: The factory setting on the press wheel
is staggered to achieve optimum residue flow.
Refer to Figure 27
If you want to adjust press wheels from staggered
to even, remove 5/8 inch bolt (1), lock washer (2)
and nut (3). Reinstall spacer (4), press wheel (5)
and hardware to the other hole location.
25 Series Openers
Do not back up with openers in the ground. To do so
will cause severe damage and opener plugging.
Opener Down Pressure
Refer to Figure 28
Opener springs provide the down pressure necessary for opener disks to open a seed trench.
The springs allow the openers to float down into
depressions and up over obstructions.
Opener spring
Hole
locations
Figure 27
Press Wheel Stagger
18410
You can adjust down pressure individually for
each opener. This is useful for penetrating hard
soil and planting in tire tracks. For best results always adjust tractor tires so they are not ahead of
30” rows.
Use only enough down pressure to cut the seed
trench and maintain proper soil-firming over seed.
Excessive opener down force will lead to premature wear opener components. Excessive down
force will also cause uneven seed depth.
Refer to Figure 29
To adjust down pressure, use adjustment wrench
stored under the walkboard or a 1 1/8” open end
wrench. Position wrench on the nutand pulldown.
Move the adjustment cam to the new setting.
Figure 28
25 Series Opener Springs
Figure 29
Opener Down Pressure Adjustment
21947
21948
118-915M
4/23/2010
Page 31
Refer to Figure 30
Minimum and maximum settings are indicated by
position of adjustment cam.
Each notch on the adjustment cam will increase
the down pressure on the opener springs. Use the
chart below as a setting reference.
Spring Down Pressure
Cam Notch Pounds
one 345
Adjustments
29
two 370
three 400
four 450
five 500
six 550
Minimum setting
Maximum setting
Figure 30
Adjustment Cam Settings
21966
21967
Opener Seeding Depth
Refer to Figure 31
Side depth wheels beside the opener disks control opener seeding depth. The position of an
adjustable stop determines seeding depth.
4/23/2010
Disk
Side depth wheel
Figure 31
25 Series Side Depth Wheel
22886
118-915M
Page 32
2525P and 2520P
30
Refer to Figure 32
Set seeding depth by adjusting handles. To adjust, first raise openers slightly, then lift and slide
handles on top of openers. Adjust all handles to
the same setting.
• For shallower seeding, slide handles forward
• For deeper seeding, slide handles back away
Press Wheel
Refer to Figure 33
Press wheels are attached to each opener body.
The press wheels close the seed trench and gently press soil over seed.
toward drill.
from drill.
Handle
Figure 32
25 Series Opener Depth
21949
An adjustable spring in the press-wheel mechanism creates the down pressure needed to close
the seed trench. The amount of force needed will
vary with field conditions.
To adjust, move adjustment handle.
• For less down pressure, move handleforward
toward drill.
• For more down pressure, move handle back
away from drill.
NOTE: Increased press wheel spring force
may require increased opener down force to
maintain depth.
NOTE: The factory setting on the press wheel is
staggered to achieve optimum residue flow.
Refer to Figure 34
If you want to adjust press wheels from staggered
to even, remove 5/8 inch bolt (1), lock washer (2)
and nut (3). Reinstall spacer (4), press wheel (5)
and hardware to the other hole location.
Less down
pressure
More down
pressure
21949
Figure 33
Press Wheel Adjustment
Hole
locations
118-915M
If you want to move the press wheels apart, remove spacer (6) from beneath the bolt head (1)
and place it next to spacer (4).
Figure 34
Press Wheel Stagger
22527
4/23/2010
Page 33
Alignment
If one closing wheel is running in the seed trench
or closing wheels are not centered over the seed
trench, adjust closing wheels as follows.
Refer to Figure 35
1. Raise the drill slightly to remove weight from
closing wheels.
2. Loosen two 1/2-inch mounting bolts (1).
3. Turn adjuster cam (2) left or right to center
wheels over the seed trench.
Torque 1/2-inchmounting bolts as recommended,
see “Appendix,” page 152.
25 Series Lock-Up
The openers can be pinned in the up position to
accommodate 30” row spacing.
Refer to Figure 36
Figure 35
Adjustment Cam
Adjustments
22516
31
4. Select the individual opener you want to keep
in the raised position. It is suggested that the
down pressure springs be set to the minimum
setting first.
5. Raise the opener high enough that the hole
for the pin is above the lower parallel arm.
This can easily be done by placing a small
block below the disc blades and setting the
drill down upon it.
6. Insert locking pin through both holes and lower the opener allowing the pin to rest on the
top of the lower parallel arm.
NOTE: Do not pin the opener while it is in the
lowered position. If the pin is inserted below
the parallel arm it WILL damage opener soon
after planting begins.
Refer to Figure 37
When pin is not being used for opener lock-up always return pin to the storage position.
Lower parallel
arm
Pin in place
Figure 36
Hole for Lock-Up Pin
4/23/2010
Pin in storage
position
22517
Figure 37
Hole for Lock-Up Pin Storage
118-915M
Page 34
2525P and 2520P
32
Frame Height
Drill operating height directly affects the working
range of the drill openers. Initially adjust frame
height as explained under “Leveling Drill”, page
17. You can make further adjustments to compensate for field conditions.
Single Gauge Wheel
Refer to Figure 38
1. Make sure block mount of the spring linkage
(2) is in the lower mount hole for planting in
bedded irrigation. The upper hole is for nonbedded ground.
2. Set spring linkage length. Turn spring linkage
to shorten or lengthen as necessary. Initially
set length to 6 1/2 inches between pin centers
to achieve a 26-inch frame height for 25 series openers and 6 1/8 inches to achieve a 24inch frame height for 20 series openers.
When adjusting the linkage length, remember:
• Lengthening linkage raises drill.
• Shortening linkage lowers drill.
Level drill with top three-point link.
NOTE: Lowering the drill increases the risk of
opener damage on rocks or obstructions.
Dual Gauge Wheels
Refer to Figure 39
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Make sure upper clevis (2) is in upper mount
hole as shown.
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 17 1/2 inches between pin centers to
achieve a 24-inch dimension. When adjusting
the turnbuckle length, remember:
• Lengthening turnbuckle raises drill.
• Shortening turnbuckle lowers drill.
Figure 38
Single Gauge Wheel Linkage
22848
4. After adjusting both turnbuckles to the same
length, tighten jam nuts.
5. Level drill with top three-point link.
NOTE: Lowering the drill increases the risk of
opener damage on rocks or obstructions.
118-915M
Figure 39
Dual Gauge Wheel Turnbuckle
22845
4/23/2010
Page 35
Seeding Rate
Adjusting the seeding rate requires the following:
1. adjusting drive speed range sprockets,
2. adjusting transmission sprockets,
3. preparing seed meters,
Driven
Adjustments
33
4. checking seeding rate.
Before setting the seeding rate, rotate the gauge
wheels. Check that seed meters, seed tubes and
drives are working properly and free from foreign
material.
Drive Speed Range Sprockets
Select the correct drive speed range sprockets for
your seed by referring to the Seed Rate Charts
beginning on page 100.
Refer to Figure 40
Loosen idler (1) and remove chain (2). Remove
retaining pins (3) from shafts and install speed
range sprockets as necessary.
NOTE: Make sure the correct sprockets have
been installed in the DRIVER and DRIVEN locations as shown.
Reroute chain over sprockets and idlers as
shown. Move idler into chain so chain has 1/4inch slack in its longest span. Tighten idler and install retaining pins.
3
2
Driver
1
3
Figure 40
Drive Speed Range Sprockets Adjustment
22875
Set the same drive range sprocket combination
on both gauge wheels.
Transmission Sprockets
To change the seeding rate, change the transmission sprocket combination. Refer to the Seed
Rate Charts beginning on page 100.
Refer to Figure 41
Loosen idler plate (1) and remove drive chain (2).
Remove lynch pins (3) from shafts and rearrange
drive and driven sprockets as necessary.
Reroute drive chain over sprockets and idlers as
shown. Move idlers into chain so chain has 1/4inch slack in its longest span. Tighten idlers and
install lynch pins.
Set the same transmission sprocket combination
on both gauge wheels.
4/23/2010
Driven
2
3
1
Figure 41
Transmission Sprockets Adjustment
Driver
3
22876
118-915M
Page 36
2525P and 2520P
34
Shutting Off Seed Flow
Refer to Figure 42
This figure shows a sliding seed tube in the open
position. To shut off seed flow, move rear tubes
(shown) forward and front tubes backward. The
following instructions explain how to shut off seed
flow to each meter.
Refer to Figure 43
1. Remove the retaining clip and pull pin. Do not
remove cotter pin.
2. Move meter cap to position seed tube over
shut off pad.
Figure 42
Sliding Seed Tubes in open positions
Sliding seed
tube
Sliding seed
tube
Shut off
22853
Refer to Figure 44
3. Place pin in hole of meter cap and install retaining clip.
4. Repeat steps 1 through 3 for each meter.
NOTE: When pin with retaining clip is located
in the slot, sliding seed tube is open. When pin
with retaining clip is located in the hole, sliding seed tube is closed.
Retaining
clip
Figure 43
Figure 44
22854
22855
118-915M
4/23/2010
Page 37
Cleaning Out Meters
NOTE: Shut off sliding seed tubes before at-
tempting to clean out seed meters.
For seed meter clean out:
1. Position tarp or buckets under the opener(s)
whose meter(s) you will be cleaning out.
Refer to Figure 45
Retaining clip
Adjustments
35
2. Remove retaining clip and pull pin.
Refer to Figure 46
3. Pull up on meter clean out door to open.
4. When meter is empty, push meter clean out
door back to its original position to close.
NOTE: You may need to shake the clean out
door a little before closing to make sure all
seeds fall out.
Figure 45
Meter clean out
Clean out door
Figure 46
Meter clean out door
Clean out door
22856
22857
Refer to Figure 47
5. Replace pin and retaining clip.
4/23/2010
Figure 47
Meter Clean Out
22858
118-915M
Page 38
2525P and 2520P
36
Finger Pickup Meter
1. Place a bucket or pan under meter to catch any
seed during cleanout.
Refer to Figure 48
2. Pull cleanout door away from the opening and allow seed to fall.
3. When meter is empty, push meter clean out door
back to its original position to close.
22859
Figure 48
118-915M
4/23/2010
Page 39
Changing Seed Meter Wheel for
20 Series Openers
Choose the correct seed meter wheel for the type
of seed you will be using. Be sure to use the same
wheel type on all meters.
To change seed meter wheels:
Refer to Figure 49
1. Shut off seed flow to meters by moving sliding
seed tubes. For more information see page
34.
Refer to Figure 50
Figure 49
Sliding seed tubes shut off
Adjustments
Sliding seed
tubes
22852
37
2. Clean out meter. For more information see
page 35.
Refer to Figure 51
3. Push in spring-loaded wheel retainer and
turn. Pull off wheel retainer and spring.
Figure 50
Meter clean out
22857
4/23/2010
Wheel retainer
and spring
Figure 51
Remove wheel retainer and spring
22860
118-915M
Page 40
2525P and 2520P
38
Refer to Figure 52
4. Pull seed meter wheel out about 1/4 inch, or
past the wheel drive pin, and spin backward to
clean out seeds from top pockets.
5. Remove seed meter wheel.
NOTE: With the seed meter wheel removed,
you may want to check the meter for internal
damage or trash.
Refer to Figure 53
6. Place new wheel on meter wheel shaft and
push meter slide retaining clip forward while
pushing in seed meter wheel.
backward before
removing
Figure 52
Remove seed meter wheel
Spin wheel
22861
Refer to Figure 54
7. Be sure slots in the center of seed meter
wheel are aligned with the wheel drive pin on
the meter shaft.
Retaining
clip
Figure 53
Place new seed meter wheel on wheel shaft
22862
Wheel
drive pin
Figure 54
Position seed meter wheel
22863
118-915M
4/23/2010
Page 41
Refer to Figure 55
8. Reinstall spring and lock wheel retainer in
place.
Adjustments
Wheel
retainer
39
Refer to Figure 56
9. Close and pin seed meter clean out.
Refer to Figure 57
10. Open sliding seed tubes and pin in place.
Figure 55
Wheel retainer locked in place
Figure 56
Close and pin clean out
22851
22857
4/23/2010
Figure 57
Open and pin sliding seed tube
22864
118-915M
Page 42
2525P and 2520P
40
Changing Seed Meters for 25
Series Openers
To change from Precision Meter to Finger
Pickup Meter
1. Remove seed from seed box.
2. Clean out meter. For more information see
“Cleaning Out Meters,” page 35.
Refer to Figure 58
3. Release the upper latch and swing drive plate
away until meter drive shaft is free.
22865
Figure 58
Refer to Figure 59
4. Release the lower latch.
Refer to Figure 60
5. Lift up and remove the precision meter along
with the lower section of the sliding seed tube.
22866
Figure 59
118-915M
22867
Figure 60
4/23/2010
Page 43
Refer to Figure 61
6. While the meter is removed take time to inspect the meter drive chain and sprocket.
Refer to Figure 62
Figure 61
Adjustments
22868
41
7. Install the new meter along with the lower section of the sliding seed tube.
Refer to Figure 63
8. Engage the upper latch. Make sure the tapered line-up pins near drive sprocket engage
completely in line-up holes.
22869
Figure 62
4/23/2010
22870
Figure 63
118-915M
Page 44
2525P and 2520P
42
Refer to Figure 64
9. Engage the lower latch.
NOTE: To change from the Finger Pickup
meter to the Precision meter requires the
same steps.
22871
Refer to Figure 65
The meter drive can be disengaged if a meter is
not being used.
1. Disengage the drive coupler by pulling out on
the pin, twisting it a quarter turn and resting it
in the shallow slot.
NOTE: A meter must always be assembled on
an opener whether it is being driven or not.
Damage will occur if no meter is in place.
Disengaging drive coupler is not required to
change meters.
21968
Figure 64
21969
Figure 65
118-915M
4/23/2010
Page 45
Changing Seed Meter Wheel for
25 Series Openers
Choose the correct seed meter wheel for the type
of seed you will be using. Be sure to use the same
wheel type on all meters.
Seed meter wheels for the interchangeable meter 25
series opener are made of a green color material and
are not interchangeable with the other Great Plains
seed meter wheels for other machines. Use only green
wheels in interchangeable meter 25 series openers.
Adjustments
22872
43
1. Shut off seed flow to meters by moving sliding
seed tube. For more information see, “Shutting Off Seed Flow,” page 34.
2. Clean out meter. For more information see
“Cleaning Out Meters,” page 35.
Refer to Figure 66
3. Push in spring-loaded wheel retainer and
turn. Pull off wheel retainer and spring.
Refer to Figure 67
4. Pry the seed meter wheel out about a 1/4 inch
using tool stored under walkboard and spin
backward to clean out seeds from top pockets.
5. Remove seed meter wheel.
NOTE: With the seed meter wheel removed,
you may want to check the meter for internal
damage or trash.
NOTE: Some wear on top edge of slide is normal. Excess wear is cause for replacement.
Refer to Figure 68
22873
Figure 66
Figure 67
6. Place new wheel on meter wheel shaft and
push meter slide retaining clip forward while
pushing in seed meter wheel.
4/23/2010
Retaining
clip
22874
Figure 68
118-915M
Page 46
2525P and 2520P
44
Refer to Figure 69
7. Place new wheel on meter wheel shaft and replace spring-loaded wheel retainer.
Adjusting Finger Pick Up Meter
The finger pick up meter has an adjustable brush.
It has been pre-set to the optimum setting for most
seed sizes. Listed below are some basic guidelines for operating and adjusting meter.
General Planting Tips
1. Optimum planting speed is 4 1/2 to 5 mph. Excess speed results in poor spacing performance due to seed tube bounce. Excess
speed may also result in improper depth control due to opener bounce.
2. Always pay attention to your drill monitor.
Compare actual seed usage to your estimates.
3. Fine-tune the drill by thoroughly checking all
key components including: Keeton™ Seed
Firmers, seed tubes, chains, sprockets, tire
pressure, seed monitor, double disk openers,
gauge wheels, closing wheels, parallel arms,
and the opener itself.
22872
Figure 69
Hole for
screwdriver
Brush
Refer to Figure 70
The adjustable brush provides additional flexibility
to accommodate a wide range of seed sizes. Use
a flat-head screwdriver to gently rotate brush into
position. Use general guidelines in table below to
adjust brush position to seed size and shape. The
numbers listed correspond to the numbers printed
on outer housing of the meter.
Population Max Inserts
The Population Max backing plate is equipped
with an “A” insert (or an “R” insert). In tests, this insert provides the best performance in most seed
sizes. However, there are two alternative inserts
that can be used. Before changing to a different insert, please consult with a Great Plains service
representative for a recommendation.
Recommended Brush Settings
start here and adjust for peak performance
XL Flats Flats Rounds Rounds and
Flats
123 3 45
Small
Round
Popcorn
22518
Figure 70
IMPORTANT: Be cautious in using seed treatments,
additives, and other chemicals. They can cause
meter performance problems and premature wear to
meter parts. Avoid use of graphite with the Precision™ Meter. If graphite must be used, use Precision
Planting graphite or Great Plains graphite - which are
less abrasive. Generally, seeds coated with Maxi or
similar coatings do not need graphite. Other seed
coatings, such as Captan, generally benefit from
graphite. Always store meters in a dry, secure place.
Moisture, temperature, and mice can create unintended problems. Always pay attention to your seed
monitor, operating manual, and be sure monitor the
amount of seed you are planting compared to your
expectations. Always investigate abnormalities!
118-915M
4/23/2010
Page 47
Checking Volumetric Seeding Rate
The seed charts are based on cleaned seed and
11L x 15, rib implement tires. Factors including
foreign material, seed treatment, seed size, seed
weight, field conditions and tire pressure will affect seeding rate. Set and check the seeding rate,
then readjust the rate as necessary.
1. Record the weight of an empty container
large enough to holdseed metered from three
meters for one acre.
2. Place several pounds of seed over three seed
meters on an outside end of the drill box.
NOTE: If drill box is full, shut off sliding seed tubes
to all but three meters on an outside end.
3. Raise drill off ground.
4. Turn gauge wheel a few turns to fill meters
with seed and until seed drops to ground from
all three openers.
Adjustments
45
5. Place a container under the three openers to
gather seed as it is metered.
6. Using the chart on the next page, select your
row spacing and determine the correct number of revolutions per acre. Turn drive gauge
wheel the selected revolutions for your row
spacing. Check in box to make sure seed
tubes have plenty of seed covering them.
7. Weigh measured seed. Subtract initial weight
of empty container. Divide by three for the
amount metered by each meter, then multiply
by the number of drill openers for the poundsper-acre seeding rate.
8. If seeding rate is different than desired:
• Double check transmission sprocket and
drive range sprocket combinations.
• Check for meter malfunction.
• Check for correct seed meter wheel.
• Check that all three rows are getting seed.
• Refer to “Troubleshooting” on page 54.
Equations for calibrating volumetric seeding rate:
measured seed empty container–
----------------------------------------------------------------------------------------- pounds per meter=
3 (number of meters measured)
pounds per meter number of openers× pounds per acre=
9. Readjust transmission and/or range sprockets and repeat test.
4/23/2010
118-915M
Page 48
2525P and 2520P
46
Tire Revolutions Per Acre
Planted Row
Spacing (Inches)
7 1/2” 32 268 38 225
9 1/2” 26 260 32 211
10” 24 268 28 229 29 221
10” 25 257
15” 16 268 19 225 19 225
15” 17 252 20 214
19” 13 260 16 211
20” 12 268 14 229 14 229
30” 8 268 10 214 10 214
36” 6 297 8 223
38” 6 282 8 2 11
40” 6 268 8 201
Twin Row 30” beds 16 268 20 214 20 214
Twin Row 36” beds 12 297 16 223
Number of
Rows for 20ft
drills
Tire
Revolutions
per Acre for
20ft drills
Number ofRows
for 24ft drills
Tire
Revolutions
per Acre for
24ft drills
Number ofRows
for 25ft drills
Tire
Revolutions
per Acre for
25ft drills
Twin Row 38” beds 12 282 16 211
Twin Row 40” beds 12 268 16 201
Twin Row 30” W/S 25 257 29 221
Skip Row 15” 14 268
NOTE: Blank spaces denote row spacings not available for specific drill models.
118-915M
4/23/2010
Page 49
Adjustments
47
Checking Singulated Seeding Rate
The seed charts are based on cleaned and sized
seed. Extreme seed size variations, foreign material
and tire pressure will affect the seeding rate. Check
the seed population rate as described below.
1. Adjust the planting depth to a shallow setting.
Plant at the desired planting speed for a short distance.
2. Using the table, determine how many rows need
to be counted.
3. Measure a distance, according to the table, for
the row spacing in the planted area.
4. Count the number of seeds, in the appropriate
number of rows, over the distance measured.
5. Multiply the number of seeds counted by 200 if
measuring for 1/200 acre or 1,000 if measuring
for 1/1,000 acre. This is the plant population in
seeds per acre.
Example 1: Single Row
If you have a 9 1/2-inch row spacing drill, according to
chart, three rows must be counted. Measure 18’ 4”
and count the number of seeds in three rows. If the
number is, for example, 180, multiply 180 by 1,000.
180 x 1,000 = 180,000 seeds per acre.
Example 2: Twin Row
If you have a Twin Row 30" spacing drill, according to
the chart, both rows of the twin row must be counted.
Measure 87’1" and count the number of seeds in the
parallel row. If the number is, for example, 170, multiply 170 by 200.
170 x 200 = 34,000 seeds per acre.
NOTE: Both rows of the Twin Row count as one row.
6. If the planting population is significantly different
than desired, make the following checks:
• Double check the transmission and range
sprocket combinations. Refer to the seed population chart for the seed being planted.
• Check the air pressure in the gauge wheel tires.
Refer to “Tire Inflation Chart” on page 153.
• Refer to “Troubleshooting” on page 54.
Seed Rate Charts
Seed rate charts begin on page 100. The charts give
transmission sprocket combinations and drive range
sprockets for each row spacing, to achieve the population or pounds per acre desired. The charts also
give seed spacing for singulated seed and maximum
planting speed for both singulated and volumetric
seeds.
Each seed chart has a corresponding page showing
the different drive ranges for that seed and a transmission sprocket reference.
NOTE: USE 1/200 ACRE FOR POPULATIONS LESS THAN 100,000 SEEDS/ACRE.
USE 1/1,000 ACRE FOR POPULATIONS ABOVE 100,000 SEEDS/ACRE.
Planted row
spacing
(inches)
7 1/2" 4 17’5"
9 1/2” 3 18’ 4”
10” 3 17’ 5”
15” 2 17’ 5” 87’1"
19” 2 13’ 9” 68’9"
20” 1 26’ 2” 130’8"
Twin Row 30" 30” 1** 17’ 5” 87’1"
Twin Row 36" 36” 1** 14’6" 72’7"
Twin Row 38" 38" 1** 13’9" 68’9"
Twin Row 40" 40" 1** 13’1" 65’4"
15" Skip Row 17 1/7" 2 15’3" 76’3"
Number of
rows to count
Length of row
to measure
for 1/1000
acre
Length of
row to
measure for
1/200 acre
4/23/2010
** Count Twin Row as one row.
118-915M
Page 50
2525P and 2520P
48
Marker Adjustments
Bleeding Marker Hydraulics
To fold properly, the marker hydraulics must be
free of air. If the markers fold in jerky, uneven motions, follow these steps.
You may be injured if hit by a folding or unfolding
marker. Markers may fall quickly and unexpectedly if
the hydraulics fail. Never allow anyone near the drill
when folding or unfolding the markers.
Escaping fluid under pressure can have sufficient pressure to penetrate the skin. Check all hydraulic lines
and fittings before applying pressure. Fluid escaping
from a very small hole can be almost invisible. Use paper or cardboard, not body parts, and wear heavy
gloves to check for suspected leaks. If injured, seek
medical assistance from a doctor that is familiar with
this type of injury. Foreign fluids in the tissue must be
surgically removed within a few hours or gangrene
will result.
Check that tractor hydraulic reservoir is full.
1. With both markers lowered into field position,
loosen hydraulic-hose fittings at rod and base
ends of marker cylinders. If applicable, loosen
fittings on back side of sequence valve.
Never bleed an O-ring fitting. Instead, bleed a nearby
pipe or JIC fitting.
2. With tractor idling, activate tractor hydraulic
valve until oil seeps out around a loosened fitting. Tighten that fitting.
JIC fittings do not require high torque. JIC and Oring fittings do not require sealant. Always use liquid
pipe sealant when adding or replacing pipe-thread
fittings. To avoid cracking hydraulic fittings from over
tightening, do not use plastic sealant tape.
3. Reactivate tractor hydraulic valve until oil
seeps out around another loosened fitting.
Tighten that fitting. Repeat process until all
loosened fittings have been bled and tightened.
118-915M
4/23/2010
Page 51
Folding Speed with Needle Valves
Refer to Figure 71
A needle valve controls the folding speed of markers that areplumbed separately. The needle valve
is near the rod end of the marker cylinder.
With tractor idling at a normal operating speed,
adjust marker folding to a safe speed. Turn adjustment knob clockwise to reduce folding speed or
counterclockwise to increase folding speed. Excessive folding speed could damage markers and
void the warranty.
Adjustments
49
Folding Speed with Sequence Valve
Refer to Figure 72
If markers are tied together with an optional sequence valve (P/N 113-466A), adjust folding
speed with hex adjustment screws on the sequence-valve body. There is one adjustment
screw for raising speed (1) and one for lowering
speed (2). Identify adjustment screws by markings stamped in valve body.
With tractor idling at a normal operating speed,
adjust marker folding to a safe speed. Turn adjustment screws clockwise to decrease folding speed
and counterclockwise to increase folding speed.
Excessive folding speed could damage markers
and void the warranty.
After adjusting the folding speed, tighten jam nuts
on hex adjustment screws to hold settings.
Marker Disk Adjustment
Figure 71
Needle Valve
Hex adjustment
screws
Increase
speed
Decrease
speed
Figure 72
Speed Adjustment, Sequence Valve
17620
14048
Marker disks may be sharp. Use caution when making
adjustments in this area.
Changing disk angle
Refer to Figure 73
If mark left by marker disk is not clearly visible, adjust disk angle to make a wider mark. Loosen two
1/2 inch bolts (1) holding disk assembly (2). Rotate disk assembly as desired.
4/23/2010
Figure 73
Disk Angle
11757
118-915M
Page 52
2525P and 2520P
50
Marker Chain
There are two, interrelated adjustments for the
marker chain. Make these adjustments in the following order.
Refer to Figure 74
1. Lifting Slack. With marker unfolded, back fullthreaded adjustment bolt (1) down until head
extends as little as possible. Slowly fold marker
while observing disk. If marker disk slides
across ground more than a foot before chain
and linkage lifts it up, the chain is too long.
Shorten chain one or two links by moving clevis
(2). Check adjustment by repeating folding process.
If chain is too short when marker is unfolded, it
will prevent end of marker from dropping into
field depressions, causing skips in your marker
line. Correct this condition by lengthening chain
one or two links at clevis (2).
2. Folding Slack. Fold marker. Use full-threaded
adjustment bolt (1) to take slack out of chain
while marker is folded. Extend bolt until there is
no chain slack. Lock bolt in this position by tightening nuts (3) on either side of upright channel
(4).
Shear Bolt
15669
Figure 74
Marker Chain Adjustment
Transport Carrier
When marker is folded, the second section should
rest in transport-carrier saddle.
Refer to Figure 75
To adjust front-to-rear position of saddle, loosen the
5/8 X 7-inch u-bolts (1) that fasten transport-carrier
mount onto box frame. Slide transport-carrier assembly forward or back as needed.
To adjust height of saddle, loosen 1/2-by-2-inch ubolts (2) that hold carrier tube to mounting bracket.
Slide carrier tube up or down as needed.
Figure 75
Adjusting Marker Carrier
15632
118-915M
4/23/2010
Page 53
Marker Width
Refer to Figure 76
To adjust marker width, loosen jam nuts (1) and
1/2-inch set screws (2). Move marker disk tube in
or out to get the proper dimension.
Refer to Figure 77 on the Next Page
The diagram shows marker width for the different
opener spacings and opener configurations.
To measure for marker width adjustment:
1. Lower drill in the field and drive forward a few
feet.
2. Measure from the middle of the outside row to
the mark in the ground made by the marker
disk.
Adjustments
Figure 76
Marker Width Adjustment
51
19204
Wider row spacing canbe achieved by shutting off
certain meters. Figure 77 on the next page shows
which rows to shut off, which to leave on and the
marker width to use.
Figure 77 legend:
= planting rows = non planting rows
A baffle package is available to optimize this conversion by diverting the seed from the unused
rows.
4/23/2010
118-915M
Page 54
2525P and 2520P
52
118-915M
22831
Figure 77
4/23/2010
Page 55
Adjustments
53
Seed-Lok™ Lock Up
Optional Seed-Lok™ firming wheels provide additional seed-to-soil contact. The wheels are
spring loaded and do not require adjusting. In
some wet and sticky conditions the wheels may
accumulate soil.
Refer to Figure 78
NOTE: Side gauge wheel and seed meter is removed for clarity.
To lock up Seed-Lok™ wheels, raise drill. Rotate
lock-up handle (1) 90 degrees down on top of
opener body, see insert. Push up on Seed-Lok™
wheel (2) until wheel arm latches up.
Opener disk blades may be sharp. Use caution when
making adjustments in this area.
To unlock Seed-Lok™ wheels, pull up lock-up
handle (1). Seed-lok™ is spring loaded so it will
snap back into place.
Locked
position.
Unlocked
position.
Push Seed-Lok™
up to lock.
18282
Figure 78
Seed-Lok™ Lock Up
4/23/2010
118-915M
Page 56
2525P and 2520P
54
Problem Cause Solution
Troubleshooting
Planting too much
Incorrect seed rate or sprocket combination.
Wrong seed meter wheel installed. Install correct seed meter wheel.
Seed size and weight vary from volumetric chart.
Actual field size is different. Verify field size.
Excessive overlap.
Irregular shaped field.
Incorrect tire size or air pressure. Correct tire size and air pressure,
Meter clean out door is open. Close and pin meter clean out door,
Seed meter wheel spring or retaining
cap damaged or missing.
Incorrect seed meter wheel for seed
size.
Seed meter wheel not seated correctly on meter shaft.
Seed meter wheel damaged or missing.
Seed meter slide is sticking open. Remove and clean seed meter slide
Check seed rate information beginning on page 100.
Adjust transmission or tire pressure.
Adjust marker, page 48.
page 153.
page 35.
Check seed meter wheel spring and
retaining cap, page 37.
Verify seed count on seed bag with
seed meter wheel.
Check installation of seed meter
wheel, page 37.
Check seed meter wheel and replace
if damaged.
and check for wear, page 61.
118-915M
Planting too little
Seed meter slide worn. Replace seed meter slide, page 61.
Wrong wheel for opener Green wheel for 25 series and black
Incorrect seed rate or sprocket combination.
Excessive field speed. Slow down. Check Seeding Rate
Incorrect seed meter wheel for seed
size.
Seed size and weight vary from volumetric chart.
Incorrect tire size or air pressure. Correct tire size and air pressure,
Check seed level in seed box. Fill seed box.
Actual field size is different. Verify field size.
Excessive gaps between drill passes. Adjust marker, page 48.
wheel for 20 series.
Check seed rate information beginning on page 100.
Chart for correct maximum field
speed
Verify seed count on seed bag with
seed meter wheel.
Adjust transmission or tire pressure.
page 153.
4/23/2010
Page 57
Problem Cause Solution
Troubleshooting
55
Planting too little (cont’d)
Uneven seed spacing
Not enough talc lubricant Add more talc lubricant, page 22.
Build up of seed treatment in meter. Clean out seed meter, page 35. Add
Seed flow shut off not 100% open and
pinned.
Plugged sliding seed tube. Clean out sliding seed tube.
Plugged opener seed tube. Lift up drill, expose bottom of seed
Seed meter wheel damaged. Replace seed meter wheel.
Obstruction in meter (foreign material
or uncleaned seed).
Thrown or worn drive chains. Check drive chains.
Worn sprockets and/or chain idlers. Replace sprockets and/or chain
Wrong wheel for opener Green wheel for 25 series and black
Excessive field speed. Slow down. Check Seeding Rate
Unclean seed. Use clean seed.
Lack of talc lubricant. Add talc lubricant, page 22.
Build up of seed treatment in meter. Clean out seed meter, page 35. Add
more talc lubricant.
Check seed flow shut off, page 34.
tube and clean out.
Clean seed meter.
idlers, page 66.
wheel for 20 series.
Chart for correct maximum field
speed.
more talc lubricant.
Uneven seed depth
Seed-Lok™ plugging. Lock up Seed-Lok™, page 53.
Damaged or missing seed flap. Replace seed flap.
Opener disks not turning. See “Opener disks not turning freely”
Plugged opener seed tube. Lift up drill, expose bottom of seed
Worn/rusted sprockets and/or chain
idler.
Seed meter wheel damaged or worn. Check seed meter wheel and replace.
Seed meter slide worn. Replace seed meter slide, page 61.
Plugged sliding seed tube. Clean out sliding seed tube.
Incorrect seed meter wheel for seed
size.
Excessive field speed. Slow down. Check Seeding Rate
Coulter depth adjustment Check hitch operator’s manual.
Planting conditions too wet. Wait until drier weather.
Drill frame height incorrect. Check drill frame height, page 32.
Drill not level front-to-back in field. Readjust top link to level drill.
in this Troubleshooting chart.
tube and clean out.
Check and replace any worn/rusted
sprockets or chain idlers.
Verify seed count on seed bag with
seed meter wheel.
Chart for correct maximum field
speed.
4/23/2010
118-915M
Page 58
2525P and 2520P
56
Problem Cause Solution
Uneven seed depth (cont’d)
Opener disks not turning
freely.
20 or 25 Series Opener side depth
wheels are set too deep for soil conditions or coulter depth.
20 or 25 Series Opener press wheel
spring force is set too high.
Incorrect spring pressure on openers. Correct spring pressure, page 28 or
Seed-Lok™ building up with dirt. Lock up Seed-Lok™, page 53.
Damaged or missing seed flaps. Replace seed flaps.
Damaged opener seed tube. Check disk spreader, page 67.
Partially plugged opener seed tube. Lift up drill, expose bottom of seed
Incorrect choice of coulter. See hitch operator’s manual.
Opener plugged with dirt. Clean opener.
Planting conditions too wet. Wait until drier weather.
Seed-Lok™ is plugging opener. Lock up Seed-Lok™, page 53.
Drill frame height incorrect. Check drill frame height, page 32.
Drill not level front-to-back in the
field.
Check 20 Series Opener adjustments, page 26.
Check 25 Series Opener adjustments, page 28.
Check 20 Series Opener adjustments, page 26.
Check 25 Series Opener adjustments, page 28.
page 29.
Engage Seed-Lok™ in dry conditions,
page 53.
tube and clean out.
Readjust top link to level drill.
20 or 25 Series Opener side depth
wheels not adjusted correctly.
too tight - dragging on blade
too loose - allowing dirt between
blade and wheel
20 or 25 Series Opener press wheel
spring force is set too high.
Too much blade-to-blade contact. Take shims under head of bolt and
Failed disk bearings. Replace disk bearings.
Bent or twisted opener frame. Replace opener frame.
Partially plugged opener seed tube. Lift up drill, expose bottom of seed
Check 20 Series Opener adjustments, page 26.
Check 20 Series Opener adjustments, page 28.
Check 20 Series Opener adjustments, page 26.
Check 20 Series Opener adjustments, page 28.
put between opener and disk bearing,
see page 67 for information.
tube and clean out.
118-915M
4/23/2010
Page 59
Problem Cause Solution
Troubleshooting
57
Acremeter does not measure
accurately
NOTE:
rate when seeding back and forth
with markers with few headlands,
curves and pointrows. Incorrect
Acre Meter
Acremeter is most accu-
Press wheels not compacting
the soil as desired
Excessive seed cracking
Incorrect tire size or air pressure Correct tire size or air pressure, page
Excessive overlap or gaps between
passes.
Soil conditions. Loose soil and slippage will cause
Check that acremeter is for your width
of drill.
Actual field size different. Verify field size.
Incorrect Acre Meter Part Number: 890-870C: 221 tire revo-
Too wet or cloddy. Wait until drier weather or rework
Coulter set too shallow. Check coulter adjustment in hitch
Drill not running level front-to-back in
the field.
Opener spring pressure too high. Reduce opener spring pressure.
20 or 25 Series Openers - not enough
pressure on press wheels.
Excessive field speed. Slow down. Check Seeding Rate
153.
Avoid overlap or gaps. Check marker
adjustment, page 51.
variations in acres registered.
Refer to drill parts manual.
lutions per acre.
ground.
operator’s manual.
Readjust top link to level drill.
Check opener adjustment, page 26.
Check opener adjustment, page 28.
Chart for correct maximum field
speed.
Unclean seed. Use clean seed.
Incorrect seed meter wheel. Change seed meter wheel, page 37.
Incorrect seed size for seed meter
wheel.
Build up of seed treatment in seed
meter wheel pockets.
Worn or damaged seed meter wheel. Replace seed meter wheel.
Worn or damaged meter slide. Replace meter slide, page 61.
Damaged, old or dry seed. Use clean, new seed.
Wrong wheel for opener Green wheel for 25 series and black
Verify seed count on seed bag with
seed meter wheel.
Clean seed meter wheel. Add more
talc lubricant.
wheel for 20 series.
4/23/2010
118-915M
Page 60
2525P and 2520P
58
Problem Cause Solution
Drill boxes do not empty
evenly
Chain
Press wheel or openers plugging
Right and left hand seed rates are not
set the same.
Tire sizes or tire inflation not equal on
right and left gauge wheels.
Meter(s) are shut off. Open meter(s).
Opener seed tube plugged. Lift up drill, expose bottom of seed
Sliding seed tube plugged. Clean out sliding seed tube.
Drive chains damaged or missing. Replace drive chains.
Drive torque requirements different
on right and left gauge wheel drives.
Unequal number of sliding seed tubes
in each box compartment.
Planting around fields vs. back-andforth.
Rough field conditions may move
seed in the box.
Debris in retainer clip Be sure retainer clip is facing oppo-
Planting conditions too wet. Wait until drier weather.
Drill not running level front-to-back in
the field.
Readjust rates, see Seeding Rate
Chart, page 100.
Correct tire size or tire inflation, page
153.
tube and clean out with wire.
Check gauge wheels and tires.
Correct planting operation.
site way of chain travel
Readjust top link to level drill.
Drill is not pulling level frontto-back
Drill frame height incorrect. Adjust drill frame height, page 32.
Coulters not set deep enough to cut
residue.
Opener set too deep. Readjust, page 27.
Opener spring force too high. Readjust, page 26 or page 28.
20 or 25 Series Openers press wheel
spring force too high.
20 or 25 Series Openers 1 x 12 press
wheel stagger adjustment not correct.
Backed up with drill in the ground Clean out and check for damage.
Failed disk bearings Replace disk bearings.
Disk blades worn. Adjust or replace disk blades, page
20 or 25 Series Opener side depth
wheels not adjusted correctly.
Scraper worn or damaged. Replace scraper.
Openers plugging in no-till conditions.
Incorrect top link adjustment. Readjust top hitch link to level drill.
Check coulter adjustment in hitch
operator’s manual.
Readjust 20 series, page 26.
Readjust 25 series, page 28
Correct press wheel stagger.
67.
Readjust, page 25.
Drill at a slight angle to the rows.
118-915M
4/23/2010
Page 61
Problem Cause Solution
Troubleshooting
59
Hydraulic marker functioning
improperly
Marker disk does not mark
Air or oil leaks in hose fittings or connections.
Low tractor hydraulic oil level. Check tractor hydraulic oil level.
Loose or missing bolts or fasteners. Check all bolts and fasteners.
Needle valve plugged. Open needle valve, cycle markers
Needle valve(s) in sequence valve
plugged.
Marker folding linkage does not have
enough slack to allow marker disk to
drop into field depressions.
Check all hose fittings and connections for air or oil leaks.
slowly and reset needle valve, refer to
page 49.
Open needle valves, cycle markers
slowly and reset needle valves, refer
to page 49.
Maximum down float should be limited by the slot at the rod end of the
marker cylinder, refer to page 49.
Reverse marker disk to pull or throw
dirt.
4/23/2010
118-915M
Page 62
2525P and 2520P
60
Maintenance and Lubrication
Maintenance
Proper servicing and maintenance is the key to
long implement life. With careful and systematic
inspection, you can avoid costly maintenance,
downtime and repair.
Always turn off and remove the tractor key before
making any adjustments or performing any
maintenance.
You may be severely injured or killed by being crushed
under the falling implement. Always have transport
locks in place and frame sufficiently blocked up when
working on implement.
OFF
Escaping fluid under pressure can have sufficient pressure to penetrate the skin. Check all hydraulic lines
and fittings before applying pressure. Fluid escaping
from a very small hole can be almost invisible. Use paper or cardboard, not body parts, and wear heavy
gloves to check for suspected leaks. If injured, seek
medical assistance from a doctor that is familiar with
this type of injury. Foreign fluids in the tissue must be
surgically removed within a few hours or gangrene
will result.
1. After using drill for several hours, check all
bolts to be sure they are tight.
2. Lubricate areas listed under “Lubrication”,
page 71.
3. Adjust idlers to remove excess slack from
chains. Clean and use chain lube on all roller
chains as needed.
4. Inflate tires as specified on “Tire Inflation
Chart”, page 153.
5. Replace any worn, damaged or illegible safety decals. Order new decals from your Great
Plains dealer. Refer to “Safety Decals”, page
7.
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Page 63
Meter Maintenance
Meter Slide Maintenance. For proper seeding
operation, seasonally or when changing crops,
check meter slide for wear. If you have a noticeable increase in seeding rate you may need to
replace the meter slide.
Refer to Figure 79
1. If seed box is not empty, shut off sliding seed
tubes.
Maintenance and Lubrication
Sliding seed
tubes
61
Refer to Figure 80
2. Clean out seed meter.
3. Remove wheel retainer and spring. Refer to
page 37 for more information.
Refer to Figure 81
Figure 79
Sliding seed tubes shut off
Figure 80
Meter clean out
backward before
removing
22852
22857
Spin wheel
4. Pull seed meter wheel out about 1/4 inch, or
past the wheel drive pin, and spin backward to
clean out seeds from top pockets.
5. Remove the seed meter wheel.
4/23/2010
Figure 81
Remove seed meter wheel
22681
118-915M
Page 64
2525P and 2520P
62
Refer to Figure 82
6. Check for excess wear on meter slide (1).
Slight wear at the top corner is normal.
7. If slide is not excessively worn, stop here. If it
is, continue with the following steps to replace.
Refer to Figure 83
8. Remove retaining clip and pin from meter.
NOTE: Meter slide is spring loaded and the
two meter slide springs will be released when
you pull the pin. Use care not to lose pins and
springs.
9. Check removed pin for wear and replace if
worn.
Figure 82
Meter slide location
Retaining
clip
Figure 83
Meter slide retaining clip
18269
22862
Refer to Figure 84
10. Remove meter slide (1) with springs (2).
11. Place springs in new meter slide and install in
meter.
12. Reinstall seed meter wheel. Refer to page 37.
118-915M
Figure 84
Meter slide
18269
4/23/2010
Page 65
Refer to Figure 85
13. Close and pin meter clean out.
Maintenance and Lubrication
63
Refer to Figure 86
14. Open and pin sliding seed tube.
Chain Tension. The seed meter drive has a
spring-loaded idler which requires no adjusting.
However, chain stretch may make it necessary to
shorten the chain.
Refer to Figure 87
For best chain tension the recommended vertical
distance between chain idlers should be not less
than 1/4 inch and not more than 1/2 inch. This
measurement should be taken with opener arms
horizontal.
Figure 85
Close and pin clean out
Figure 86
Open and pin sliding seed tube
front idler
rear idler
Arms
horizontal
22857
18300
Refer to Figure 88
NOTE: The front idler should be below the rear
idler. Be sure chain is installed with the chain
connector link retainer towards the centerline
of the opener and the clip opening (spit end)
faces the opposite way of the chain travel.
4/23/2010
19598
Figure 87
Seed Meter Chain Idlers
Figure 88
Chain retainer
18300
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Page 66
2525P and 2520P
64
22507
Figure 89
Finger Meter
Finger Set Installation Instructions
Installation Steps
Great Plains recommends having the meter service performed by a recognized professional repair facility, such
as a certified Meter Max representative.
If you choose to service them yourself follow these procedures when installing the finger-sets.
Refer to Figure 89
1. Be sure the belt is oriented properly as shown.
2. Slide the finger set over the shaft and rotate clockwise until it properly seats against the backing plate
(you will hear a click).
3. Firmly press the finger set against the backing plate
while tightening the nut.
4. Tighten the nut until contact is made between the nut
and the finger set. Turn 1/4 to 1/2 (1/24 to 1/12 of a
turn) flat (a flat is one of the six sides of the nut) after
contact is made. This equals about four inch pounds
of torque on the nut.
5. Place the slotted nut cover on and carefully align the
slotted nut cover with the shaft hole and insert the
cotter pin.
6. Rotate the finger set clockwise and make sure the fingers open and close properly. Fingers should be
closed at the 8:00 to 2:00 position (exit hole) and
open at the 2:00 to 8:00 position.
Annual Maintenance
Finger sets should be inspected on an annual basis. After
cleaning, carefully inspect the fingers and springs for
wear or other abnormalities that may develop. Excessive
wear may disrupt singulation performance.
Precautions
1. Make sure the finger set is properly torqued against
the backing plate. Improperly torqued finger sets may
disrupt seed singulation.
2. Avoid seed treatments, additives and other chemicals
when possible. They can cause meter performance
problems, premature wear to meter parts and may
cause un-desired chemical reaction or deterioration
to the finger sets. Always use Precision Planting or
Great Plains graphite when using seed treatments,
refer to “Graphite Powder,” on page 22. Graphite from
other sources may cause premature wear.
3. Always pay attention to your seed monitor, operating
manual and monitor the amount of seed you are
planting compared to your expectations. Always investigate Abnormalities.
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Page 67
Seed Tube Maintenance
Refer to Figure 90
Maintenance and Lubrication
65
Clean inner sliding seed tube if it will not slide. Replace inner sliding seed tube if you see any visible
cracks.
Sliding Seed Tube Replacement
Refer to Figure 91
To replace inner sliding seed tube, follow these
steps:
1. Make sure seed box is empty.
2. Loosen bottom clamp (1).
3. Pull inner sliding seed tube (2) out of seed
meter grommet and pull inner tube down and
out of outer sliding seed tube (3).
4. Inspect outer sliding seed tube for wear and
replace if necessary. Loosen top clamp (4)
and pull outer sliding seed tube from seed box
grommet.
5. Fit new outer sliding seed tube into seed box
grommet. The distance from seed box grommet lip to the top of the clamp should be no
more than 3/16 inch, see insert. The outer
sliding seed tube must extend above the rubber grommet by 1/4” to 3/8” for 20 series
openers and by 1/2” to 5/8” for 25 series
openers, see insert. Tighten clamp (4).
Outer sliding
seed tube
Inner sliding
seed tube
18298
Figure 90
6. Place new inner sliding seed tube inside outer
sliding seed tube. Make sure the chamfer on
the inside of the tube is up as shown.
7. Fit inner sliding seed tube into seed meter
grommet and tighten clamp.
8. Replace inner sliding seed tube inside outer
sliding seed tube as shown, fit into seed
meter grommet and tighten clamp (1).
4/23/2010
22834
Figure 91
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2525P and 2520P
66
Grommet Maintenance
Periodically check seed meter and seed box grommets for weathering or cracking and replace as
necessary. Check sliding seed tubes at this time to
make sure they slide freely.
Drive System
Refer to Figure 92
For proper operation and to prevent downtime and
repair, keep drive chains properly adjusted and lubricated. Regularly check drive chains for excess
slack and wear. Adjust idlers to remove any excess
slack from chains.
NOTE: Be sure chain is installed with the chain
connector link retainer towards the centerline
and the clip opening (split end) is facing the opposite way of the chain travel. See Figure 88,
page 63.
20 Series Opener Side Wheels
Refer to Figure 93
19194
1. Lift opener side wheel off the ground. Move tire
in and out to check for end play. Check for roughness in bearing by rotating wheel. If the bearings are rough, inspect and replace if
necessary.
2. The side wheels are preset at the factory, however because of normal wear it may become
necessary to make adjustments so the wheel
remains close to the disk. To prevent plugging
loosen clamp bolt (7) and slide arm inward to
take up gap between side wheel and disk blade.
If more adjustment is needed go to step 3.
3. Remove bolt (10) and wheel (2). Remove shims
(1) from the inside of the wheel (2) and place
them on the outside of the wheel. Always place
the shims removed from the inside to the outside. When installed, the wheel should turn freely and not hit the arm at the curve. Do not add
any more shims than necessary.
4. Disassemble side gauge wheel arm (3) from
unit. Remove bushing (4) from sleeve (5) and
check bushing for wear. Replace bushing if necessary.
5. When reinstalling side gauge wheels, align tab
on hex adjustment (6) with notch in bushing. Replace bolt and tighten.
6. Adjust side gauge wheels. Refer to “Adjustments,” page 25.
19193
Figure 92
Drive Chains and Idlers
Disk edges are sharp. Be careful when working in this area.
118-915M
20432
Figure 93
Side Wheels
4/23/2010
Page 69
Opener Disks
1. On 20 or 25 Series openers, remove side
gauge wheel arm & wheel assembly by removing 5/8 inch bolt (4) to access opener
disks and spreaders. See Figure 96 on previous page.
2. Check disk blades for wear.
3. When reinstalling disk blades, put two shims
(4) between bearing and shank on one blade
and two shims under bolt. Tighten bolt. On
opposite side, reinstall blade with two shims
between bearing and shank and two shims
under bolt. Tighten bolt.
Refer to Figure 94
4. Check contact point between disk blades.
Place a piece of paper in top gap between
disk blades. Bring paper down until it stops. In
lower gap place another piece of paper. Bring
paper up until it stops. The distance must be
between 1/2 and 1 3/4 inches. Add or remove
shims as needed to get the correct contact
point.
Maintenance and Lubrication
1/2 inch to
1 3/4 inches
67
Disk edges are sharp. Be careful when working in this
area.
20 Series Opener Disk Spreader
Refer to Figure 95
1. On 20 Series openers, remove side gauge
wheel arm and wheel assembly by removing
5/8 inch bolt (4) to access opener disks and
spreaders.
2. With the unit raised, check blade spreader (1)
for wear. Replace spreader if it is 7/16 inch
wide or narrower, or if opener is plugging with
dirt. To replace, remove disk blade (3). Drive
out roll pins (2) and install a new spreader.
NOTE: Disk spreaders are loose to move freely.
20433
Figure 94
Opener Disks Contact Point
Figure 95
Disk Spreader
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2525P and 2520P
68
25 Series Disk Spreaders and Scrapers
NOTE: It is normal for the blade spreader to have some
looseness in the holder and between the blades. Some
looseness is required for proper operation.
Refer to Figure 96
1. Remove side gauge wheels from arms to access
opener disks and scrapers.
2. With the unit raised, check the blade spreader (1) for
wear. Replace spreader if it is 1/2 inches wide or narrower. To replace, remove disk blade (3). Drive out the
roll pins (2) and install a new spreader.
3. When reinstalling disk blades, put two shims (4) between bearing and shank on each blade. Tighten
bolts.
NOTE: You may need fewer washers on worn disks.
4. Check that outside disk scrapers (5) are formed to disk
blades to help remove any mud. Bend and twist scrapers to fit blades as necessary. After every 200 acres of
operation, check outside scrapers for proper adjustment and wear. Replace outside scrapers as necessary.
25 Series Opener Side Wheels
Refer to Figure 97
1. Lift opener side wheel off the ground. Move tire in and
out to check for end play. Check for roughness in bearing by rotating wheel. If the bearings are rough, inspect and replace if necessary.
22839
Figure 96
Spreaders and Scrapers
2. The side wheels are preset at the factory, however because of normal wear it may become necessary to
make adjustments so the wheel remains close to the
disk. To prevent plugging loosen clamp bolt (7) and
slide arm inward to take up gap between side wheel
and disk blade. If more adjustment is needed go to
step 3.
3. Remove bolt (10) and wheel (2). Remove shims (1)
from the inside of the wheel (2) and place them on the
outside of the wheel. Always place the shims removed
from the inside to the outside. When installed, the
wheel should turn freely and not hit the arm at the
curve. Do not add any more shims than necessary.
4. Disassemble side gauge wheel arm (3) from unit. Remove bushing (4) from sleeve (5) and check bushing
for wear. Replace bushing if necessary.
5. When reinstalling side gauge wheels, align tab on hex
adjustment (6) with notch in bushing. Replace bolt and
tighten.
6. Adjust side gauge wheels. Refer to “Adjustments,”
page 25.
21894
Figure 97
Side Wheels
Disk edges are sharp. Be careful when working in this area.
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Page 71
Seed Flap Replacement (s/n 1466SS-)
Refer to Figure 98
To replace a seed flap use a needle nose or similar tool and squeeze the tabs together. Pull plastic
seed flap down out of metal bracket.
If replacing with 817-349C: Push new seed flap
up through metal bracket until tabs on seed flap
snap in place.
If replacing with 816-302C:
See seed flap replacement instructions below.
Squeeze tabs
together
Maintenance and Lubrication
Metal
bracket
69
Seed Flap Replacement (s/n 1467SS+)
Refer to Figure 99
To replace an 816-302C seed flap use a needle
1
nose pliers or similar tool to grasp “T” top of flap.
Pull upward to pull flap up out of metal bracket .
Push new seed flap down through metal brack-
2
et until flap snaps into place with “T” top resting
1
2
on top of bracket.
Figure 98
817-349C Seed Flap Replacement
2
1
Figure 99
816-302C Seed Flap Replacement
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2525P and 2520P
70
Marker Maintenance
Refer to Figure 100
The marker arm is attached to marker body with a
3/8-inch, grade 2, shear bolt. If this shear bolt
breaks, replace it with a grade 2 bolt.
NOTE: Failure to replace the shear bolt with a
grade 2 bolt can cause marker damage.
If grease-seal cap for marker-disk-hub bearings is
damaged or missing, disassemble and clean hub.
Repack with grease and install a new seal or
grease cap.
Storage
Store the drill where children do not play. If possible, store the drill inside for longer life.
1. Unload seed box:
• Place tarp under drill or a bucket under each
seed meter.
• Use a large bucket to empty box as much as
possible. Make sure sliding seed tubes are in
the open position. Open seed meter clean out
to empty seed out of sliding seed tube and
meter.
2. Thoroughly clean seed and seed-treatment
residue from boxes and seed meters.
3. Remove seed meter wheels. Store flat and
out of the weather.
4. Remove any dirt and debris that can hold
moisture and cause corrosion.
5. Lubricate and adjust all roller chains.
6. Lubricate areas noted under “Lubrication”,
page 71.
7. Inspect drill for worn or damaged parts. Make
repairs and service during the off season.
8. Use spray paint to cover scratches, chips and
worn areas on the drill to protect the metal.
17621
Figure 100
Marker Shear Bolt
118-915M
9. Cover with a tarp if stored outside.
4/23/2010
Page 73
Lubrication
Maintenance and Lubrication
71
Multipurpose
spray lube
Drive Chains
Type of Lubrication: Chain Lube
Quantity = Coat thoroughly
Drive Chains
Use care not to spray inside of meter.
Type of Lubrication: Chain Lube
Quantity = Coat thoroughly
Multipurpose
grease lube
As
Required
As
Required
Multipurpose
oil lube
50
Intervals at which
lubrication is required
18265
15
Gauge Wheel Arm Pivots
Zerks on both gauge-wheel arms
Type of Lubrication: Grease
Quantity = Until grease emerges
8
20 and 25 Series side wheel bushing
For 20 and 25 series, both sides of each opener.
For 25 series there are two zerks on each side,
one on top and one on bottom. Only one on each
side needs grease as they both lubricate the
same area.
18286
18267
Type of Lubrication: Grease
Quantity = Until grease emerges
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2525P and 2520P
72
Wheel Bearings
Type of Lubrication: Grease
Quantity = Repack
Seasonally
21641
25
Marker Hinge Points
Type of Lubrication: Grease
Quantity = Until grease emerges
Seasonally
19196
118-915M
Marker Disk Bearings
Type of Lubrication: Grease
Quantity = Repack
19196
4/23/2010
Page 75
Options
Markers
Hydraulic markers are available. The units have a
cast hub, tapered roller bearings and a bolt-on
blade to leave a mark for you to follow on the next
field pass. Each marker requires a hydraulic circuit for operation. A sequence valve is available
so markers can be operated on the same hydraulic circuit.
For information on how to operate the markers, refer to “Marker Operation”, page 23. For
information on transporting the markers, refer to
“Transporting with Markers”, page 24. For information on how to adjust the markers, refer to
“Marker Adjustments”, page 48.
To order the markers and sequence valve, contact
your Great Plains dealer.
Options
73
Marker Packages Part Number
Dual Marker Package 113-784A
Sequence Valve Kit 113-466A
Seed-Lok™ Firming Wheels
The optional spring-loaded Seed-Lok™ firming
wheel presses seed directly into the bottom of the
seed bed. The Seed-Lok™ option provides more
even emergence since seeds are planted and
firmed at the same depth.
To order the Seed-Lok™ firming wheels, contact
your Great Plains dealer.
Seed-Lok™ Packages Part Number
19196
20 Series Opener Seed-Lok™ Assy. 122-251K
25 Series Opener Seed-Lok™ Assy. 404-093K
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18287
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2525P and 2520P
74
20 Series Precision Opener Side
Depth Wheel Scraper
To order the opener wheel scraper, contact your
Great Plains dealer.
Scraper Packages Part Number
20P Side Wheel Scraper Kit 198-960A
20262
Baffle Kit
The baffle package stops the flow of grain to a set
number of seed tubes by covering those tubes.
To order the Baffle Kit, contact your Great Plains
dealer.
Option Packages Part Number
9.5 to TR38 Baffle Kit 118-868A
10 to 30 Baffle Kit 118-939A
TRS30 to Tr30 Baffle Kit 118-940A
15 to 30 Baffle Kit 118-941A
DICKEY-john® Monitor
The DICKEY-john®Monitor option is a micro-processor based monitoring system. If seed is not
going to the ground, the monitor will sound and indicate which meter has stopped planting. The
system also provides information for seed spacing, seed population, area, ground speed and the
projected area/hr.
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Page 77
Veris Drive
The Veris Drive is a precision population controller
which uses a hydraulic drive to accurately drive the
metering system.
For Information on how to operate the Veris Drive
refer to the Veris Drive section starting on page 76.
For information on ordering the Veris Drive contact
your Great Plains dealer.
Weight Bracket Kit
The optional weight bracket kit is used to add
weight to the drill frame.
19977
Options
75
To order the Weight Bracket Kit, contact your
Great Plains dealer.
Option Packages Part Number
20P/24P/25P Weight Bracket Kit 118-071A
Keeton Seed Firmer
To order the Keeton Seed Firmer, contact your
Great Plains dealer.
Option Packages Part Number
25 Series Keeton Seed Firmer 890-840C
Keeton 120GPD 300T Seed Firmer 890-796C
24479
4/23/2010
20327
25042
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Page 78
2525P and 2520P
76
Veris Drive Operating Instructions
22712
22710
22711
118-915M
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Page 79
Operating Instructions
Drive Operational Requirements:
Hydraulic System:
• Closed center, pressure compensated or
load sensed systems only
• Drive will not operate on open-centered hydraulic systems
Minimum Hyd. Pressure: 2250 psi
Maximum Hyd. Pressure: 3000 psi
Maximum Required Flow:
• 25’ 8.5 gpm
Electrical System:
• Voltage: 12 volt DC
• Amperage: 4 amperes
Veris Drive Operating Instructions
77
Tractor Hookup
Hydraulics:
1. Connect pressure hose (P) to retraction outlet
2. Connect motor return hose (T) tomotor return
port (if available) or to extension outlet.
3. Set flow rate at maximum required flow (8.5
gpm).
4. If tractor is equipped with electro-hydraulic
valves, set timer to “constant” flow.
Electrical:
Refer to Figure 101
1. Power must be connected directly to the battery using power port adapter (PN: 19729).
Make sure the eyelets are properly connected
(Red to positive and Black to negative). Connect female socket to the power port adapter.
4/23/2010
22714
Figure 101
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2525P and 2520P
78
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23251
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Page 81
Console Functions
Refer to Figure 102
The use of each key is as follows:
• On/VR key—turns drive system on. Press
twice for VR mode. Note: Engage key must
also be pressed to start drive operation.
• Off key: used to shut off Console.
• Function key: used in calibration mode and to
program Console for VR recipes.
• Up/down arrow keys: used to change rates
manually, to set calibration numbers, and VR
controller options.
• Engage key: press to start drive.
NOTE: Drive will not run unless light above key is
illuminated.
NOTE: Figure 104 shows Main Operating Screen
in manual mode.
22710
Veris Drive Operating Instructions
Figure 102
79
Calibration
Refer to Figure 103
1. Turn on Controller Console by pressing On/
VR key. Green light above On/VR key will illuminate when power is on. Adjust desired
planting rate by using the Up/Down arrow
keys to change the Set rate.
2. Set the desired Rate by using the Up/Down
arrow keys.
Refer to Figure 104
3. Press Function key until Calibration Number
window appears. Select drive calibration
number based on row spacing and metering
wheel, from chart on page 86. Use Up/Down
arrow keys to set Calibration number.
22715
Figure 103
4/23/2010
22716
Figure 104
118-915M
Page 82
2525P and 2520P
80
Refer to Figure 105
4. Press Function key until the Calibration win-
5. Press up arrow key to enter calibration mode.
dow appears as shown.
Refer to Figure 106
6. This is the first window that appears in Calibration mode. Press Function key to accept,
or Up key to change to metric settings.
Refer to Figure 107
7. Enter drill width here using Up/Down arrow
keys. Press Function key to advance to next
window.
22717
22718
Figure 105
Figure 106
118-915M
22719
Figure 107
4/23/2010
Page 83
Refer to Figure 108
8. Enter number of rows here using Up/Down arrow keys. Press Function key to advance to
next window.
Veris Drive Operating Instructions
81
Refer to Figure 109
9. Enter your planned planting speed using Up/
Down arrow keys. Calibration mode will not
accept a speed higher than 10 mph. Press
Function key to advance to next window.
Refer to Figure 110
10. Enter the amount of seed you want to measure. For volumetric metering, this should be
at least 1/4 of a lb. For singulated metering, at
least 100 seeds should be selected. Press
Function key to advance to next window.
22720
22721
Figure 108
Figure 109
4/23/2010
22722
Figure 110
118-915M
Page 84
2525P and 2520P
82
Refer to Figure 111
11. The cab console is informing you the length of
time that the drive will be operating, in order to
meter the amount of seed you have requested, at the calibration number, drill width, and
number of rows you have selected. Press
Function key to advance to next window.
Refer to Figure 112
The drive is about to operate, meaning there is a danger of entanglement if anyone is in the drive area. Be
sure to verify that no one is near the drive area before
advancing to the next step.
Refer to Figure 113
12. Only after you have verified the drive area is
clear, press the up arrow key to initiate calibration mode. If drive area isn’t clear, press
Down arrow key to exit calibration mode.
22723
22724
Figure 111
Figure 112
118-915M
22725
Figure 113
4/23/2010
Page 85
Refer to Figure 114
13. Continuing to verify that the drive area is
clear, press the Engage key to start drive rotation. Pressing Function key will exit calibration mode.
Veris Drive Operating Instructions
83
Refer to Figure 115
14. While the drive is rotating, the display window
shows the time remaining and the “Out” rate.
CONTINUE TO MONITOR DRIVE AREA
DURING DRIVE ROTATION. PRESS THE
ENGAGE KEY (OR OFF KEY) TO STOP
DRIVE DURING CALIBRATION
Refer to Figure 116
15. After Calibration meter rotation has ended,
this screen will appear.
22726
22727
Figure 114
Figure 115
4/23/2010
22728
Figure 116
118-915M
Page 86
2525P and 2520P
84
Refer to Figure 117
16. Enter the actual amount metered using the
Up/Down arrow keys. Press Function key to
advance to next window.
Refer to Figure 118
17. A New calibration number is suggested,
along with the Old calibration number.
Refer to Figure 119
18. Press Function key to advance to window
shown.
19. If you wish to keep the Old number, perhaps
to re-run the calibration procedure, press the
Down arrow key. If you want to accept the
New calibration number, press the Up arrow
key.
22729
22730
Figure 117
Figure 118
118-915M
22731
Figure 119
4/23/2010
Page 87
Refer to Figure 120
20. Console window now displays the calibration
number you have selected.
Veris Drive Operating Instructions
85
Refer to Figure 121
21. This returns you back to the beginning of Calibration mode as shown. To re-run the Calibration procedure, follow the steps outlined
above. It is suggested that you perform the
calibration mode at least twice, and additional
replications may be needed if Target and Actual amounts vary significantly.
22732
22733
Figure 120
Figure 121
4/23/2010
118-915M
Page 88
2525P and 2520P
86
Operations
Before going to the field:
1. Once calibration procedure above has been
Refer to Figure 122
2. Turn on Console by pressing On/VR key.
NOTE: For units with P/N 21567 skip step 3.
3. To double-check calibration before planting,
• Volumetric: use extreme caution when per-
followed, Console will store the calibration and
rate information until new information has
been entered.
Pressing the On/VR key twice will put the unit
in VR (Variable Rate) mode. Leave Console in
manual mode.
follow same procedure as for mechanical
ground drives as outlined in Great Plains Precision Seeding System Operator’s Manual,
with these differences:
forming this calibration to prevent injury due to
drive entanglement. Also, turn drive gauge
wheel with a consistent speed of at least 30
rpm for maximum calibration accuracy.
22710
Figure 122
• Singulated: Rather than calibrating from a
standing start, measure the distance as listed
in the GP manual, and set two flags. Start driving far enough in advance of the first flag that
your unit is operating at field speed (min. 3
mph) during the calibration distance.
In Field:
Refer to Figure 123
1. Turn onController Console by pressing On/VR
key. Green light above On/VR key will illuminate when power is on. Pressing
On/VR key twice will put unit in VR mode. VR
will appear on the screen along with the Rate
being sent from computer. Press On/VR key
again to toggle back to manual mode. (Mode
and rate changes take effect with the release
of key.)
2. To change rates manually whether in manual
or in VR mode, simply touch Up/Down arrow
keys. This will change Controller to rate you
select manually. To return to VR, simply touch
On/VR key to toggle back to VR mode.
3. Engage hydraulic flow by pushing FORWARD
on tractor remote hydraulic lever. Remote lever must be LOCKED OPEN in this position to
provide constant flow to drive motor.
• John Deere tractors with Sound-Gard ®
body: Use lever lock clip to lock lever forward.
22734
Figure 123
• See your tractor dealer for lock purchase and instal-
lation.
• John Deere 7000 Series tractors: Rotate valve detent selector to motor position to lock lever in forward position.
• John Deere 8000 Series tractors: Set timer to continuous. Push lever forward until detent clicks.
• Case-IH Magnum tractors: Lock lever forward in
detent position. You may need to turn up detent
pressure to its maximum setting. Do not tie hydraulic
lever past detent position with a strap. See your tractor dealer for details.
• Other tractors: Lock lever forward in detent position. You may need to turn detent pressure to maximum or usea mechanical detent holder to hold lever
forward. See your tractor dealer for proper means of
providing constant flow.
118-915M
4/23/2010
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Veris Drive Operating Instructions
87
1. Press Engage key to activate drive. Green light
above Engage key will illuminate.
NOTE: If you do not move within 10 seconds, the
automatic disengagement feature will disengage
the drive. To begin planting again, you must press
the Engage key.
2. Console display shows two numbers while operating: “Set” rate is the rate you tell the system to
plant, and the “Out” rate is the calculated rate
based on the actual rotations of the drive. The
“Out” reading is monitoring the drive system;it
isn’t monitoring population. It verifies that the drive
system is functioning properly.
Note: The “Out” readings will normally fluctuate within
5% of the “Set” rates. This fluctuation is evidence of
the drive system compensating for minor fluctuations
in ground speed.
3. If “Out” rate varies from the “Set” rate by more than
20%, an audible alarm will sound.
4. If Controller is powered directly from battery or unswitched power port, make sure to power Console
off when tractor is shutdown. This prevents tractor
battery drain.
Veris Drive Sprocket Change
For proper operation on finger meters (high range) it will
be necessary to switch from 12 tooth to 24 tooth Veris
Drive sprocket.
Refer to Figure 124
1. Loosen chain idler. Remove Veris drive chain. Pull
retaining clip from sprocket spacer (1). Remove
spacer (1) from Veris drive shaft.
2. Slide 12 tooth sprocket (2) and 24 tooth sprocket (3)
towards Veris drive until they rest against inside
locking collar (4).
3. Replace spacer (1) on shaft between 24 tooth
sprocket (3) and outside locking collar (5). Hold
spacer in place with retaining clip. Install Veris drive
chain and tighten chain idler.
4. Reverse this procedure to switch back to 12 tooth
sprocket (2) when operating 20 and 25 series
meters.
NOTE: Make sure and switch to proper sprocket on
both drives.
22880
Figure 124
Veris Drive Sprocket Change
Calibration Table-Finger Meter (High Range)
Motor 24T Driver-Mainshaft 36T Driven
Crop Row Spacing Number of cells Min. Rate Max. Rate Cal #
Corn 20” 6 Finger Meter 13200 35800 750***
Corn 20” 12 Finger Meter 17500 47700 1501**
Corn 30” 6 Finger Meter 8800 24000 500***
Corn 30” 12 Finger Meter 17500 47700 1000**
Corn 38” 6 Finger Meter 9200 21000 395***
Corn 38” 12 Finger Meter 28000 50000 790**
Corn TR 30” 6 Finger Meter 17500 47500 1000**
Corn TR 30” 12 Finger Meter 35000 96000 2001**
Corn TR 38” 6 Finger Meter 18500 50000 790***
Corn TR 38” 12 Finger Meter 28000 80000 1580**
NOTE: Finger Meters require 24 tooth sprocket on Veris drive. Refer above for sprocket change.
** Refer to seed chart to determine optimum planting speed for your nominal rate.
*** Extremely high rates on wide row spacing may require lower ground speed - refer to seed charts for mph limits.
4/23/2010
118-915M
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2525P and 2520P
88
Calibration Table-Singulating (Low Range)
Motor 12T Driver-Mainshaft 36T Driven
Crop Row Spacing Number of cells Min. Rate Max. Rate Cal #
Corn 20” 28 20500 37000 1751
Corn 30” 28 20500 37000 1167*
Corn 38” 28 20500 37000 921*
Corn 15” Rows or TR30 28 20500 37000 2334
Corn 19”Rows or TR 38” 28 20500 37000 1843
Corn 20” 42 31000 55600 2626
Corn 30” 42 31000 55600 1751*
Corn 38” 42 31000 55600 1382*
Corn 15” Rows or TR30 42 31000 55600 3501
Corn 19”Rows or TR 38” 42 31000 55600 2764
Cotton 9.5” 120 58500 159000 15796
Cotton 10” 120 58500 159000 15006
Cotton 15” Rows or TR30 120 58500 159000 10004
Cotton 19”Rows or TR 38” 120 58500 159000 7898
Cotton TR 30” W/Splitters 120 58500 159000 15006
Cotton (HR) 9.5” 120 117000 318000 15796
Cotton (HR) 10” 120 117000 318000 15006
Cotton (HR) 15” Rows or TR30 120 117000 318000 10004
Cotton (HR) 19”Rows or TR 38” 120 117000 318000 7898
Cotton (HR) TR 30” W/Splitters 120 117000 318000 15006
Row Cotton 20” 120 29000 79500 7503
Row Cotton 30” 120 29000 79500 5002*
Row Cotton 38” 120 29000 79500 3949*
Row Cotton 15” Rows or TR30 120 29000 79500 10004
Row Cotton 19”Rows or TR 38” 120 29000 79500 7898
Row Milo (LR) 20” 102 24900 67600 66378
Row Milo (LR) 30” 102 24900 67600 4252*
Row Milo (LR) 38” 102 24900 67600 3357*
Row Milo (LR) 15” Rows or TR30 102 24900 67600 8504
Row Milo (LR) 19”Rows or TR 38” 102 24900 67600 6713
Row Milo (MR) 20” 135 32300 89500 8441
Row Milo (MR) 30” 135 32300 89500 5627*
Row Milo (MR) 38” 135 32300 89500 4443*
Row Milo (MR) 15” Rows or TR30 135 32300 89500 11255
Row Milo (MR) 19”Rows or TR 38” 135 32300 89500 8885
Row Milo (HR) 20” 270 65300 178900 16882
Row Milo (HR) 30” 270 65300 178900 11255*
Row Milo (HR) 38” 270 65300 178900 8885*
Row Milo (HR) 15” Rows or TR30 270 65300 178900 22509
Row Milo (HR) 19”Rows or TR 38” 270 65300 178900 17771
Solid Milo (LR) 9.5” 51 24900 67500 6713
Solid Milo (LR) 10” 51 24900 67500 6378
Solid Milo (LR) 15” Rows or TR30 51 24900 67500 4252
Solid Milo (LR) TR 30” W/Splitters 51 24900 67500 6378
Solid Milo (MR) 9.5” 102 49800 135000 13427
Solid Milo (MR) 10” 102 49800 135000 12755
Solid Milo (MR) 15” Rows or TR30 102 49800 135000 8504
Solid Milo (MR) TR 30” W/Splitters 102 49800 135000 12755
Solid Milo (HR) 9.5” 135 65900 178900 17771
Solid Milo (HR) 10” 135 65900 178900 16882
Solid Milo (HR) 15” Rows or TR30 135 65900 178900 11255
Solid Milo (HR) TR 30” W/Splitters 135 65900 178900 16882
Soybeans 9.5” 100 140000 265000 13163
Soybeans 10” 100 140000 265000 12505
Soybeans 20” 100 140000 265000 6253
Soybeans 30” 100 140000 265000 4168*
Soybeans 38” 100 140000 265000 3291*
Soybeans 15” Rows or TR30 100 140000 265000 8337
Soybeans 19”Rows or TR 38” 100 140000 265000 6582
Soybeans TR 30” W/Splitters 100 140000 265000 12505
Soybeans 9.5” 110 140000 291000 14480
Soybeans 10” 110 140000 291000 13756
Soybeans 20” 110 140000 291000 6878
Soybeans 30” 110 140000 291000 4585*
Soybeans 38” 110 140000 291000 3620*
Soybeans 15” Rows or TR30 110 140000 291000 9171
Soybeans 19”Rows or TR 38” 110 140000 291000 7240
Soybeans TR 30” W/Splitters 110 140000 291000 13756
NOTE: For proper operation of the Great Plains
Singulator Plus Meter
used on the 20 and 25
series openers the 12
tooth drive sprocket is
required on the Veris
drive on both sides of
the drill. To change to
the 12 tooth sprocket referto“VerisDrive
Sprocket Change” on
page 87.
NOTE: Cal number
should be accurate for
singulated meters, but
Great Plains strongly
suggests that you use
the Calibration Routine
to fine-tune your actual
seeding rate.
* Extremely high rates
using these meters on
this row spacing may require lower ground
speed; see GP Manual
for additional
information.
118-915M
4/23/2010
Page 91
Veris Drive Operating Instructions
Calibration Table-Volumeric (Low Range)
Motor 12T Driver-Mainshaft 36T Driven
Crop RowSpacing Meter
Barley 9.5” Wheat N 403-118D 403-060D 23 64 3.12
Barley 10” Wheat N 403-118D 403-060D 23 64 2.96
Barley 15” Rows or TR30 Wheat N 403-118D 403-060D 23 64 1.98
Barley TR 30” W/Splitters Wheat N 403-118D 403-060D 23 64 2.96
Barley 9.5” Wheat W 403-119D 403-085D 51 140 6.84
Barley 10” Wheat W 403-119D 403-085D 51 140 6.50
Barley 15” Rows or TR30 Wheat W 403-119D 403-085D 51 140 4.33
Barley TR 30” W/Splitters Wheat W 403-119D 403-085D 51 140 6.50
Barley 9.5” PSS Vol. #3 403-120D 403-094D 64 174 8.51
Barley 10” PSS Vol. #3 403-120D 403-094D 64 174 8.09
Barley 15” Rows or TR30 PSS Vol. #3 403-120D 403-094D 64 174 5.39
Barley TR 30” W/Splitters PSS Vol. #3 403-120D 403-094D 64 174 8.09
Oats 9.5” Wheat N 403-118D 403-060D 16 42 2.08
Oats 10” Wheat N 403-118D 403-060D 16 42 1.98
Oats 15” Rows or TR30 Wheat N 403-118D 403-060D 16 42 1.32
Oats TR 30” W/Splitters Wheat N 403-118D 403-060D 16 42 1.98
Oats 9.5” Wheat W 403-119D 403-085D 38 102 5.02
Oats 10” Wheat W 403-119D 403-085D 38 102 4.77
Oats 15” Rows or TR30 Wheat W 403-119D 403-085D 38 102 3.18
Oats TR 30” W/Splitters Wheat W 403-119D 403-085D 38 102 4.77
Oats 9.5” PSS Vol. #3 403-120D 403-094D 51 140 6.82
Oats 10” PSS Vol. #3 403-120D 403-094D 51 140 6.48
Oats 15” Rows or TR30 PSS Vol. #3 403-120D 403-094D 51 140 4.32
Oats TR 30” W/Splitters PSS Vol. #3 403-120D 403-094D 51 140 6.48
Rice (MR) 9.5” Rice (MR) 403-143D*** 403-142D*** 40 69 3.38
Rice (MR) 10” Rice (MR) 403-143D*** 403-142D*** 40 69 3.21
Rice (MR) 15” Rows or TR30 Rice (MR) 403-143D*** 403-142D*** 40 69 2.14
Rice (MR) TR 30” W/Splitters Rice (MR) 403-143D*** 403-142D*** 40 69 3.21
Rice (HR) 9.5” Rice (HR) 403-121D*** 403-095D*** 65 117 5.72
Rice (HR) 10” Rice (HR) 403-121D*** 403-095D*** 65 117 5.43
Rice (HR) 15” Rows or TR30 Rice (HR) 403-121D*** 403-095D*** 65 117 3.62
Rice (HR) TR 30” W/Splitters Rice (HR) 403-121D*** 403-095D*** 65 117 5.43
Rye 9.5” Wheat N 403-118D 403-060D 27 74 3.64
Rye 10” Wheat N 403-118D 403-060D 27 74 3.46
Rye 15” Rows or TR30 Wheat N 403-118D 403-060D 27 74 2.31
Rye TR 30” W/Splitters Wheat N 403-118D 403-060D 27 74 3.46
Rye 9.5” Wheat W 403-119D 403-085D 61 164 8.06
Rye 10” Wheat W 403-119D 403-085D 61 164 7.66
Rye 15” Rows or TR30 Wheat W 403-119D 403-085D 61 164 5.10
Rye TR 30” W/Splitters Wheat W 403-119D 403-085D 61 164 7.66
Wheat HRW 9.5” Wheat N 403-118D 403-060D 51 90 4.42
Wheat HRW 10” Wheat N 403-118D 403-060D 51 90 4.20
Wheat HRW 15” Rows or TR30 Wheat N 403-118D 403-060D 51 90 2.80
Wheat HRW TR 30” W/Splitters Wheat N 403-118D 403-060D 51 90 4.20
Wheat HRW 9.5” Wheat W 403-119D 403-085D 76 132 10.14
Wheat HRW 10” Wheat W 403-119D 403-085D 76 132 9.63
Wheat HRW 15” Rows or TR30 Wheat W 403-119D 403-085D 76 132 6.42
Wheat HRW TR 30” W/Splitters Wheat W 403-119D 403-085D 76 132 9.63
Wheat SRW 9.5” Wheat W 403-119D 403-085D 66 180 8.84
Wheat SRW 10” Wheat W 403-119D 403-085D 66 180 8.40
Wheat SRW 15” Rows or TR30 Wheat W 403-119D 403-085D 66 180 5.60
Wheat SRW TR 30” W/Splitters Wheat W 403-119D 403-085D 66 180 8.40
Wheat SRW 9.5” PSS Vol. #3 403-120D 403-094D 89 240 11.78
Wheat SRW 10” PSS Vol. #3 403-120D 403-094D 89 240 11.19
Wheat SRW 15” Rows or TR30 PSS Vol. #3 403-120D 403-094D 89 240 7.46
Wheat SRW TR 30” W/Splitters PSS Vol. #3 403-120D 403-094D 89 240 11.19
4/23/2010
2525P
Meter P/N
2520P
Meter P/N
Min.
Rate
Max.
Rate
Cal #
89
NOTE: For proper operation of the Great Plains
Singulator Plus Meter
used on the 20 and 25
series openers the 12
tooth drive sprocket is
required on the Veris
drive on both sides of
the drill. To change to
the 12 tooth sprocket referto“VerisDrive
Sprocket Change” on
page 87.
NOTE: Field speed may
affect actual rate per
acre with volumetric
meters. Once you enter
the calibration number
you must then operate
the drive in the Calibration to ensure that you
are obtaining the desired rate per acre.
Refer to instructions for
operation of the Calibration Routine.
***817-529C Flow Gate
must be used in conjunction with 403-095D
rice wheel.
118-915M
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2525P and 2520P
90
GPS-Based Seeding
Settings for FarmWorks SiteMate used with Great
Plains Precision Population Controller QUICK
REFERENCE GUIDE
(Create a .shp recipe file in FarmWorks Site Pro, SMS
2.0, SSToolbox, orother software that will create a .shp
file, and transfer it to SiteMate.)
SiteMate Settings: (version 8.12)
1. Select CONFIGURE Tab. Select SETTINGS. Select VARIABLERATE SETUP. Select NEW. Typein
GP PPC. Under CONTROLLER TYPE, select
Rawson from the scroll-down list. Under COMM
PORT select the port number for the serial card or
flash jacket port.
2. Select MAP tab. Enter DEFAULT rate. This will be
the rate that SiteMate will call for if GPS signal is
lost or you are outside the map area. Note: if GPS
signal is interrupted, or if you are outside the map
area, GP Controller will continue applying rate it
was set at when signal was interrupted, until signal
is regained, or another rate is set manually. If power to the SiteMate is interrupted, you will need to
restart the recipe to return to VR. In the CONVERSION window, enter theconversion rate as follows:
if your recipe (.shp file) is written using the entire
number as the desired rate, i.e. 30,000 seeds/acre
on the recipe means 30,000 seeds/acre is the desired rate, enter both the Map Unit and Controller
Unit as 1. If the recipe is written using a different
number, i.e. 30 on the recipe means a population
of 30,000, then you will need to enter the conversion multiple—in that case 1 Map Unit = 1,000
Controller Units.
3. Under the APP tab, enter the Feed Delay as 3 seconds. Enter the Following Distance (the offset from
the Great Plains meters from the GPS) as follows:
for 15’ and 20’ the distance from the opener to the
hitch pin is 18’; for the 30’ model the distance is
26’; Add the distance from the hitch pin to your
GPS location. Enter the total distance in the Following Distance window. Enter the Swath Width of
the Great Plains unit.
4. Under the CTRL tab, enter the Nominal Rate as
follows: Divide the highest rate on your recipe by
1.6. This is your Nominal rate. For example, if your
highest rate is 200,000 the nominal is 125,000. If
your highest rate is 32, your nominal rate is 20. Enter the Step as 4%. Exit VRA Controller Setup by
clicking OK button to save the settings.
5. Under FILE, Open VRT and select the Rx Map
(recipe) for the field. Press the SETUP button and
select the GP PPC controller option that you have
set up using these Settings Instructions.
6. Press GO. The Rx rate window shows the rate that
is being sent to the GP Precision Population Controller. The APPLIED window shows the rate that
the GP Controller is applying.
Settings for Great Plains Precision Population
Controllers:
1. Connect SiteMate computer to Console using 9pin serial cable, as shown below.
9 pin serial cable
for recipes
22735
2. Follow instructions on page 79 to set Calibration
Number based on row spacing and metering
wheel.
3. Press Function key and go to Rawson mode.
Press Function key until the Nominal Rateappears
on the display. Using the Up/Down arrow keys, set
the Nominal Rate to the same number as you set
the PF3000 in step 5. Once Nominal Rate is set,
press Function key until the main operating screen
appears, as shown in Figure 101 on page 79.
4. Press On/VR key again to toggle to VR mode. VR
should appear on the screen along with the Rate
that is being sent from the SiteMate computer.
(See Figure 122 on page 86) Verify that the rate
shown on the GP Controller Console is the same
as the recipe sent from SiteMate. Press Engage
key to activate the Precision Population Controller.
5. To change rates manually when in VR mode, simply touch the Up/Down arrow keys. This will
change the Controller to the rate you select manually. To return to VR, simply touch the On/VR key to
toggle back to VR mode.
118-915M
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Veris Drive Operating Instructions
91
Troubleshooting GPS-based Seeding with SiteMate
1. No Rx rate appears on SiteMate
• has field been selected? Select VRT file (see
SiteMate Settings, Step 5)
• check recipe to verify that it is valid by viewing Attributes for each zone in SiteMate
• if recipe calls for zero rate as the default, do you
have GPS signal, or are you outside of field?
2. Rx rate appears on SiteMate, but no Applied Rate.
• make sure “Go” button on SiteMate is pressed.
(button should read “Stop” when recipe is being
sent to GP Console)
• you must be planting in order for Applied Rate to
appear.
3. Rx rate appears on SiteMate but not on GP Controller Console.
• make sure GP Controller Console is set to VR
Mode (see Figure 120, page 86)
• double-check all cable connections
• check Nominal rates on both the SiteMate (SiteM-
ate Settings, Step 4), and on the GP Controller
Console (GP Settings, Step 2) These must be set
to the same number.
5. Population Monitor rate does not match GP Controller Console.
• Make certain that SiteMate and GP Controller
Console agree. If not, see Troubleshooting step 4.
• Re-check GP calibration number, with metering
wheel and row spacing.
• Re-check planter monitor settings: calibration
number, row spacing, number of rows, swath
width, seed, etc.
• On small seeds and/or high rates, if population
monitor consistently indicates a lower population
than the GP Controller Console, contact monitor
manufacturer for performance specs for that application.
6. GPS signal is not being received by SiteMate:
• verify that GPS serial port (which is also the docking port) is not set to PC connection only (Start/
Settings/Communications/PC Connections-check
GPS settings in Configure/Settings/GPS settings/
COM (typically COM1, 4800 Baud, 8 data bits,
Parity None, and Stop Bits 1)
• Click Data tab to view GPS details
4. Rates on GP Controller Console and on SiteMate
do not match.
• check Nominal rates on both the SiteMate (SiteMate Settings, Step 4), and on the GP Controller
Console (GP Settings, Step 2) These must be set
to the same number.
• Re-check GP calibration number, with metering
wheel and row spacing.
• The recipe rates from SiteMate are in 4% increments. If the two rates are within this 4% range,
the units are operating normally.
• Check the Conversion number (SiteMate Settings,
Step 2). If the recipe requires a target conversion
number, i.e. the recipe is for 25 which means
25,000 seeds/acre, the target conversion number
will be 1000. In this case the Nominal Rate in
SiteMate and the GP Console should be near
25,000. See SiteMate Settings, Step 4 for calculating Nominal Rate.
4/23/2010
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92
Settings for Ag Leader PF3000 Monitors used with
Great Plains Precision Population Controlle QUICK
REFERENCE GUIDE
(Create a .tgt recipe file in SMS 2.0 or FarmWorks Site
Pro, or other software that will create a .tgt file, and
copy it to an SRAM or Flash card that is compatible
with the PF 3000.)
PF3000 Settings:
1. Press SETUP key. Press SWATH key. Set swath
to that of your Great Plains Precision Seeding
System.
2. Press SETUP key. Press VEHICLE key. Set Primary speed sensor to GPS.
3. Press SETUP key. Press CARD key. Set the following:
Log Device: None.
4. Press SETUP key. Press APP RATE key. Set the
following:
Application Control:On
Look Ahead:On
Current target file: press Edit to view the files you
have on the card; select the one you wish to use.
5. Press SETUP key. Press CONTROLLER key. Select controller as Rawson Accu-Rate. Press EDIT
SETTINGS. Set the following:
Number of pulses/10 revolutions: 500
Nominal rate: Divide the highest rate on your rec-
ipe by 1.6. This is your Nominal rate. For example,
if your highest rate is 200,000 the nominal is
125,000. If your highest rate is 32, your nominal
rate is 20.
Percent rate change: set to 4%
Area count: Set to Standard
Stop height: Set to 8
Act. rate recording method: Set to Sensor
Controller time delay: Set to 4 sec
Application offset from GPS: for 15’ and 20’ the
distance from the opener to the hitch pin is 18’; for
the 30’ model the distance is 26’; Add the distance
from the hitch pin to your GPS location.
Serial Port: Port 3
6. Press SETUP key. Press PRODUCT key. Select
product and press EDIT SETTINGS. Set the following:
Controller Device: Rawson Accu-RateCal. num-
ber for act. rate: set to 0
Actual Rate Scale Factor: Set to 1.000
Target Rate Units: Set to Seeds
Actual Rate Units: Set to Seeds
Target conversion Number: If your recipe (.tgt file)
is written using the entire number as the desired
rate., i.e. 30,000 seeds/acre on the recipe means
30,000 seeds/acre is the desired rate, enter a
1.000. If the recipe is written using a different number, i.e. 30 on the recipe means a population of
30,000, then you will need to enter the conversion
multiple—in that case 1,000.
Target Rate increment: Determines the increment
value by which you can change the manual target
rate with each press of the arrow keys.
7. Press FIELD key. Set Field. Set Product (press
key to right of product)
Settings for Great Plains Precision Population
Controllers:
1. Connect PF3000 to Console using 9 pin serial cable as shown below.
9 pin serial cable
for recipes
22735
2. Follow instructions on page 59f to set Calibration
Number based on row spacing and metering
wheel.
3. Press Function key and go to Rawson mode.
Press Function key until the Nominal Rate appears on the display. Using the Up/Down arrow
keys, set the Nominal Rate to the same number as
you set the PF3000 in step 5 above. Once Nominal Rate is set, press Function key until the main
operating screen appears.
4. Press On/VR key again to toggle to VR mode. VR
should appear on the screen along with the Rate
that is being sent from the PF3000. (See Figure
122 on page 86) Verify that the rate shown on the
GP Controller Console is the same as the recipe
sent from the PF3000. Press Engage key to activate the Precision Population Controller.
5. To change rates manually when in VR mode, simply touch the Up/Down arrow keys. This will
change the Controller to the rate you select manually. To return to VR, simply touch the On/VR key
to toggle back to VR mode.
118-915M
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Page 95
Veris Drive Operating Instructions
93
Troubleshooting GPS-based seeding with PF3000
1. No Target Rate appears on the PF3000
• has field been selected? Select target file (see
PF3000 Settings, Step 4)
• check recipe to verify that it is valid
• if recipe calls for zero rate as the default, do you
have GPS signal, or are you outside of field?
2. No Actual Rate appears on the PF3000.
• actual rate cannot be logged using the PF3000
with the Great Plains Precision Population Controller.
3. Target Rate appears on PF3000 but not on GP
Controller Console.
• make sure GP Controller Console is set to VR
Mode (see Figure 120 page 86)
• double-check all cable connections
• check Nominal rates on boththe PF3000(PF3000
Settings, Step 5), and on the GP Controller Console (GP Settings, Step 2) These must be set to
the same number.
• Re-check GP calibration number, with metering
wheel and row spacing.
• Re-check planter monitor settings: calibration
number, row spacing, number of rows, swath
width, seed, etc.
• When planting small size seeds and/or at high
rates, if population monitor consistently indicates
a lower population than the GP Controller Console, contact monitor manufacturer for performance specs for that application.
4. Rates on GP Controller Console and on PF3000
do not match.
• check Nominal rates on boththe PF3000(PF3000
Settings, Step 5), and on the GP Controller Console (GP Settings, Step 2) These must be set to
the same number.
• Re-check GP calibration number, with metering
wheel and row spacing.
• The recipe rates from the PF3000 are in 4% increments. If the two rates are within this 4% range,
the units are operating normally.
• Check the target conversion number (PF3000
Settings, Step 6). If the recipe requires a target
conversion number, i.e. the recipe is for 25 which
means 25,000 seeds/acre, the target conversion
number will be 1000. In this case the Nominal
Rate on the PF3000 and on the GP Console
should be near 25,000. See PF 3000 Settings,
Step 5 for calculating Nominal Rate.
5. Population Monitor rate does not match GP Controller Console.
• Make certain that PF3000 and GP Controller Console agree. If not, see Troubleshooting step 4
above.
4/23/2010
118-915M
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2525P and 2520P
94
Maintenance
As with any hydraulic system, contamination is
the most common cause of performance problems and pre-mature wear. Make a special effort
to properly clean quick couplers prior to attaching
the hoses to tractor.
1. Filter: All fluid is filtered through the high pressure filter (PN 18574) and it will provide protection to the hydraulic components of your
drive if properly maintained. It is equipped
with a pop-out indicator to alert that the replaceable element is clogged, and should be
changed immediately if this situation occurs.
Normal service life of the element will vary
based on the precautions that you take to
minimize contamination at the couplers and
routine service of the tractor filtration.
To change the element:
Refer to Figure 125
1. Un-screw lower canister from filter, catching
and disposing of used fluid.
2. Remove and discard element.
3. Install new element (PN 19856)
4. Clean canister threads and lube o-ring with
hydraulic fluid, then re-install.
Refer to Figure 126
5. Re-set pop-out indicator if necessary.
It is a good idea to keep a filter element on hand,
and we recommend changing at a minimum on an
annual basis.
6. Between planting seasons, store cab console
inside in a relatively stable and dry environment.
7. Avoid direct spray from high pressure washers on the motor encoder and the external
controller box. These units are sealed from
normal moisture, but high pressure could inject water into the housing.
Element
22736
Pop-out
indicator
Figure 125
118-915M
8. Keep electrical connects free from dirt and
grease. It’s a good idea to occasionally spray
the terminals with contact cleaner to ensure
proper connection.
22737
Figure 126
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Veris Drive Operating Instructions
Troubleshooting
Drive will not rotate: (see Troubleshooting flow chart and electronics overview)
1. Check cab console:
a. No power to cab console - check with voltmeter.
b. Upper line (set) is visible but no lower line (out rate and speed) on display: move to Communication trouble-
shooting below.
c. 1 or 10 amp fuse on power cable may be blown.
d. Engage button is not on - check to see if green indicator light is on.
e. Use Cab Console Power Tester (PN 27857) to check power out of cab console. Install tester on round 7-pin
power/com cable from cab console. Turn drive on. Green LED shows power to external controller. Red LED
shows power to solenoid. If LED lights are not lit, double-check power and connections; replace cab console
if needed.
2. Check Communication between cab console and drive:
a. Check to see if power and communication cable (main harness) is properly connected.
b. If no lower line on cab console appears (speed and output rate), and drive will not rotate in calibration mode,
use Cable Continuity Tester (PN 27859) to test power and communication to external controller. (WARNING:
TO PREVENT DAMAGE TO COMPONENTS, DISCONNECT POWER/COM CABLE FROM CAB CONSOLE AND EXTERNAL CONTROLLER BEFORE INSTALLING THIS TESTER). Install 4-pin test plug on
end of 4-pin power/com cable before powering the Cable Continuity Tester - remove before reattaching power/com cable directly to cab console.
c. If Cable Continuity Tester shows power is getting to external controller, turn power off and remove Cable
Continuity Tester and 4-pin test plug from ends of power/com cable. Reattach power/com cable to cab console and external controller.
d. If power/com cable tester shows power and communication is reaching external controller from cab console,
and no lower line appears on cab console, replace chip or external controller. Call Service Department.
e. If Cable Continuity Tester (PN 27859) isn’t available, check cable with voltmeter at connection at control mod-
ule.
3. Test Relay inside external controller:
95
a. Use Relay Output Tester (PN 27860) to test relay inside external controller. Install tester to weather-pak so-
lenoid connector from external controller. With tractor engine off, start drive calibration function. Auditory
alarm should buzz for 1.5 seconds when drive is engaged in calibration mode. If alarm does not sound, relay
or external controller may need to be replaced. Call Service Department.
4. Check Hydraulics:
a. Check to see if hydraulic lever is in detent position.
b. Hydraulic lever is in wrong detent direction - a check valve at outlet of motor prevents reverse rotation.
c. Make sure that both hoses are properly connected to tractor remotes.
d. Inadequate system pressure. Place pressure gauge at filter and check reading. If system pressure is below
tractor specifications, check system.
e. Power solenoid directly: DANGER: RAPID DRIVE ROTATION MAY OCCUR AND CAUSE SERIOUS INJU-
RY. KEEP CLEAR OF DRIVE AREA.
i. Disengage hydraulics.
ii. Reduce flow 30 - 50%.
iii. Power solenoid directly by connecting power weather-pak
connector to solenoidweather-pak connector. If drive doesn’t
rotate, Proportional Coil (PN 19799) may be defective. Check
continuity with meter, or energize with 12v power and check for magnetic pull with small screwdriver.
Double-check connections on solenoid cable. If solenoid energizes but drive does not rotate when powered directly, tractor hydraulics are not properly engaged.
4/23/2010
Rapid drive rotation may occur and
cause serious injury.
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2525P and 2520P
96
5. Check Speed signal (if drive rotates in calibration mode but not when planting):
Drive rotates but not at desired speed:
f. Excessive torque in drive system. Disconnect main drive chain to check for rotation under zero load.
Check for a problem with the mechanical portion of drive, such as foreign material wedged in meter,
frozen bearings, misaligned chains, or swelled grain in meter. install pressure gauge at motor inlet.
Pressure should be 1000 - 1500 psi. If pressure is above 2000 psi, significant torque problems are
present.
a. No signal from speed sensor - check connection at sensor
and at drive controller.
b. Excessive gap between wheel sensor and sensor plate - re-
adjust to .030.
c. Use Speed Simulator (PN 27858) to troubleshoot speed
loop. Leave tractor stationary and drive hydraulics do not
need to be engaged.
d. Test speed sensor and hall effect sensor; replace sensor if simulated speed appears on cab console.
e. Test speed cable between speed sensor and hall effect module; replace cable if simulated speed ap-
pears on cab console.
f. Test hall effect module and cable to external controller; replace module and cable if simulated speed
appears on cab console. If speed does not appear with speed simulator, external controller or chip
may need replacement. Call Service Department.
Rapid drive rotation may occur and
cause serious injury.
6. Drive (out rate) fluctuating erratically:
a. If indicated field speed on drive is also fluctuating erratically, troubleshoot speed signal loop.
b. If field speed is steady, check for loose set screws on motor encoder, contamination of proportional val-
ue, or mechanical binding of chain on row unit.
7. Indicated speed fluctuating erratically:
a. Use speed simulator to troubleshoot speed loop. Leave tractor stationary and drive hydraulics do not
need to be engaged. If steady speed between 4-10 mph appears on cab console using speed simulator, troubleshoot radar, wheel pickup sensor, hall effect module. If steady speed does not appear with
speed simulator, external controller may need replacement. Call Service Department.
b. Check radar gun angle.
c. Check gap between wheel sensor and pickup plate.
d. Check power to system < 12 volt power will cause drive to behave erratically - often problem manifests
itself in speed loop.
8. Drive shuts off while planting:
a. If it occurs after 20 seconds of not planting, such as turning on headlands, operation is normal safety
shutoff (on units with radar speed signal).
b. Check setting of speed signal interrupter switch - reposition as necessary to keep actuator from dis-
engaging while planting.
c. 1.5 second delay shutting off drive - causes: chain binding, inadequate hydraulics.
9. Drive will not achieve desired rate:
a. Recheck calibration number and rerun calibration procedure if necessary.
b. Check to make sure that your desired rate is within the range of the meter that is installed.
c. Inadequate hydraulic flow. Adjust flow control to higher position. Check with flow meter if flow is sus-
pect.
d. Field speed too high. Check maximum planting rate in seed chart for rate that you are planting.
e. Check sprocket combinations; see Assembly and Parts Manuals for the planter you are operating (30P
and 40P models).
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Page 99
Veris Drive Operating Instructions
f. Check speed shown on cab console against other speedometer - tractor, planter monitor. If
drive speed is significantly higher, recalibrate speed on drive.
10. Drive plants significantly higher than desired rate:
a. Recheck calibration number and rerun calibration procedure if necessary.
b. Ensure that you have installed the correct seed meter.
c. Check sprocket combinations; see Assembly and Parts Manuals for the planter you are oper-
ating (30P and 40P models).
d. Check speed shown on cab console against other speedometer - tractor, planter monitor. If
drive speed is significantly higher, recalibrate speed on drive.
11. Drive continues to rotate after tractor has stopped:
a. Contamination or wear in proportional valve (PN 19798). Remove and inspect. Blow out with
compressed air. Check o-rings and reinstall. Replace if necessary.
12. Fluid weeping from motor shaft seal:
a. Excessive back pressure in return hose. Check quick coupler connection. Use motor control
port for return if available.
Calibration Troubleshooting:
97
13. If the time to run for calibration is less than 4 seconds, the cab console will display TIME TOO LOW.
Pressing the FUNCTION key will bring up the ENTER TARGET AMOUNT screen. The target
should be raised to increase the calibration time. If the time is greater than 255 seconds, the cab
console will display TIME TOO HIGH. Pressing the FUNCTION key will bring up the ENTER TARGET AMOUNT screen. The target should be lowered to decrease the calibration time.
14. While rate calibration is running, one of four error messages may be displayed:
Message Cause Solution
COMM TIMEOUT Power to or communi-
cation with the external
controller was interrupted during calibration.
TIME OVER LIMIT The external controller
ran too long in calibration.
Check power and communication connections
from the cab console to
the external controller
and rerun calibration.
Rerun calibration. If the
same message
appears, call technical
support.
USER TERMINATED The engage key was
Rerun calibration.
pressed during calibration.
CALIBRATE ERROR The drive did not turn
when calibration began.
Check encoder cable
and connection, sole-
noid cable and connec-
tion, and hydraulic lever
position.
Pressing FUNCTION will exit rate calibration from these error screens.
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98
Troubleshooting Flow Chart
118-915M
23250
4/23/2010
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