GREAT PLAINS UMRC Guide

Read the operator manual entirely. When you see
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warnings are serious - follow without exception.
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Illustrations may show optional equipment not
supplied with standard unit.
!
Table of Contents
Original Instructions 204-811M
Great Plains
INSTALLATION, OPERATION, AND PARTS MANUAL
2021+ Unit and Coulter Mounted Row Cleaners
UMRC and CMRC
22816

Machine Identification
Record your machine details in the log below. If you replace this manual, be sure to transfer this information to the new
manual.
If you or the dealer have added options not originally ordered with the machine, or removed options that were
originally ordered, the weights and measurements are no longer accurate for your machine. Update the record by
adding the machine weight and measurements with the option(s) weight and measurements.
Dealer Contact Information
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Year of Construction
Delivery Date
First Operation
Accessories
Name:
Street:
City/State:
Telephone:
Email:
Dealer’s Customer
No.:
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov

To our customer:
Congratulations on the purchase of your Great Plains product. Great Plains welcomes you to its
growing family of new product owners. Your product has been designed and built by skilled
workers using quality materials.
Your dealer has performed the necessary pre-delivery service to your machine, and will advise
you of the proper maintenance and operating practices that will give you long, satisfactory use of
your machine. Do not hesitate to contact your dealer when you have a question related to your
machine.
Your machine has been designed to run efficiently in most operating conditions, and will perform
relative to the service it receives. If you need customer service or repair parts, contact your dealer
who has trained personnel, repair parts, and equipment specially designed for Great Plains
products.
Read this manual carefully before using the machine. It will familiarize you with safety, operation,
adjustments, and maintenance of your new equipment. This manual must always be kept with
your machine.
Great Plains wants you to be satisfied with your product. If for any reason you do not understand
any part of this manual or are otherwise dissatisfied, please take the following actions first:
1. Discuss the matter with your dealership service manager. Make sure he is aware of
any problems so he can assist you.
2. If you are still unsatisfied, seek out the owner or general manager of the dealership.
If your dealer is unable to resolve the problem or the issue is parts related, please contact:
Great Plains Service Department
1525 E. North St.
P.O. Box 5060
Salina, KS, USA 67402-5060
Printed 08/12/2021 | English
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time of its publication, and may not reflect the product in the future. The content of this publication may be changed without notice.

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UMRC Cover
Great Plains | 204-811M | 08/12/2021 v
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description of Unit . . . . . . . . . . . . . . . . . . . . . 1
Intended Usage . . . . . . . . . . . . . . . . . . . . . . . 1
Document Family . . . . . . . . . . . . . . . . . . . . . . 1
Supporting Implements for UMRC . . . . . . . . . 1
Using This Manual . . . . . . . . . . . . . . . . . . . . . 1
Kits Covered by this Manual. . . . . . . . . . . . . . 2
Safety Information . . . . . . . . . . . . . . . . . . . . . . . 3
Before Getting Started . . . . . . . . . . . . . . . . . . . . . 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Handling and Disposing of Chemicals . . . . . . 4
Operation Noise Hazard. . . . . . . . . . . . . . . . . 4
PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Tire Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
High Pressure Fluids . . . . . . . . . . . . . . . . . . . 5
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Chain. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Lights and Devices . . . . . . . . . . . . . . . 5
Shutdown and Storage. . . . . . . . . . . . . . . . . . . . . 5
Proper Waste Disposal . . . . . . . . . . . . . . . . . . . . 5
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparation and Setup. . . . . . . . . . . . . . . . . . . . 7
General Assembly Instructions . . . . . . . . . . . . . . 7
Tools Required. . . . . . . . . . . . . . . . . . . . . . . . 7
UMRC Installation . . . . . . . . . . . . . . . . . . . . . . . . 7
Install UMRC Adjuster Parts. . . . . . . . . . . . . . 8
Install UMRC Mount Weldment . . . . . . . . . . . 8
Install the UMRC Cleaner Arm . . . . . . . . . . . . 8
Install CMRC Cleaner Arms . . . . . . . . . . . . . . 9
Install Cleaner Wheel Assemblies . . . . . . . . 10
Mount a Left Wheel . . . . . . . . . . . . . . . . . . . 11
Mount a Right Wheel . . . . . . . . . . . . . . . . . . 11
Install Down Stop (CMRC Only). . . . . . . . . . 12
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wheel Placement . . . . . . . . . . . . . . . . . . . . . 13
Dual Wheel Placement. . . . . . . . . . . . . . . . . 13
Single Wheel Placement . . . . . . . . . . . . . . . 14
Row Cleaner Depth . . . . . . . . . . . . . . . . . . . 14
Selecting Depth . . . . . . . . . . . . . . . . . . . . . . 14
Adjusting UMRC Depth . . . . . . . . . . . . . . . . 15
Adjusting CMRC Depth . . . . . . . . . . . . . . . . 15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Row Cleaner Maintenance . . . . . . . . . . . . . . 16
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
UMRC Mount . . . . . . . . . . . . . . . . . . . . . . . . 18
207-308S Dual UMRC Arm . . . . . . . . . . . . . 19
207-337S Dual UMRC Narrow Arm . . . . . . . 20
207-340S (Left) / 207-341S (Right) Single
UMCR Arm Twin Row . . . . . . . . . . . . . . . . . 21
207-334S / 207-335S Dual CMRC Kit . . . . . 22
207-336S Dual Narrow CMRC Kit . . . . . . . . 23
207-338S (Left) / 207-339S (Right) Single
CMRC Arm Twin Row . . . . . . . . . . . . . . . . . 24
Cleaner Wheel Assembly 207-142V (Right) /
207-143V (Left). . . . . . . . . . . . . . . . . . . . . . . 25
Hub Assembly (815-255C) . . . . . . . . . . . . . . 26
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 27
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Great Plains | 204-811M | 08/12/2021 1
UMRC Table of Contents Introduction
Introduction
Great Plains welcomes you to its growing family of
new product owners. Your Unit and Coulter Mount
Row Cleaners (UMRC and CMRC) have 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 these accessories.
Description of Unit
The row accessories covered by this manual are
rigid toothed wheel row cleaners. They are provided
as a pivoting assembly that attaches to either its
own mount (UMRC) or to a unit-mount coulter
(CMRC). In either case, the row cleaner
assembly is coupled to the individual row unit
(opener body). It follows the terrain with the row
unit, and raises and lowers with the row unit.
Adjustments are provided for setting the amount of
residue clearing desired.
Intended Usage
Use row cleaners on supporting implements
equipped with Great Plains 5000 series row units or
any implements with unit-mount coulters (UMCs).
Use the row cleaners for residue management with
production-agriculture crops only. Do not modify
row cleaner for use with attachments other than
those approved by Great Plains.
Document Family
204-811M Installation, Operation, and Parts Manual
(this document)
For routine operation and maintenance, you also
need to have your implement Operator and Parts
Manuals.
The information in this manual is current at printing.
Some parts may change to assure top
performance.
Supporting Implements for UMRC
Tighter row spacings and twin-row spacings do not
allow dual row cleaners. Some implements may
only support UMRC or CMRC only.
The row cleaners may not be compatible with other
planters and drills that have 5000 Series row units.
Using This Manual
This manual familiarizes you with safety, assembly,
operation, adjustments, troubleshooting, and
maintenance. Read this manual and follow the
recommendations to help ensure safe and efficient
operation.
Figure 1:
Row Cleaner Arm
L
R
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UMRC Table of Contents Introduction
Great Plains | 204-811M | 08/12/2021 2
Kits Covered by this Manual
Part Number Description
Single Row UMRC Kits
207-307K ROW CLEANER AND UM ASY
207-342K ROW CLEANER AND UM ASY
SHORT
207-343K ROW CLEANER AND UM XTRA
NARW
207-344K ROW CLEANER AND UM ASY
TR LH
207-345K ROW CLEANER AND UM ASY
TR RH
Individual Row Cleaners
207-308S ROW CLEANER ARM ASY UM
207-334S ROW CLEANER ARM ASY CM
207-335S ROW CLEANER ARM ASY CM
207-336S ROW CLEANER ARM ASY CM
NARROW
207-337S ROW CLEANER ARM ASY UM
NARROW
207-338S ROW CLEANER ARM ASY CM
TR LH
207-339S ROW CLEANER ARM ASY CM
TR RH
207-340S ROW CLEANER ARM ASY UM
TR LH
207-341S ROW CLEANER ARM ASY UM
TR RH

Great Plains | 204-811M | 08/12/2021 3
UMRC Table of Contents Safety Information
Safety Information
The safety symbol indicates a potential safety
hazard to persons operating or near the
machine and advises on how to avoid it.
The notice symbol indicates a potential for
machine or property damage from operator
error and advises on how to avoid misuse.
The information symbol indicates useful - but
not crucial - information for machine
operation, assembly, or adjustment.
Before Getting Started
1. Read this manual in its entirety before attempting
to start and operate the machine.
2. Only use operators that are thoroughly trained by
the owner or trained by someone with the
owner’s consent. The operator must be familiar
with all functions of the tractor and attachments,
and be able to handle emergencies quickly.
3. Maintain attention on operation at all times. Do
not operate if using a smart phone, tablet, or
similar electronic device, and never operate
machine while impaired by alcohol, medication,
any controlled substance, or while fatigued.
4. Do not ever allow passengers to ride the
machine at any time, for any reason.
5. Before operation, make sure that all tractor cab
levers are in their neutral positions and that the
parking brake is engaged.
6. Check brakes, link pins, and other mechanical
parts for wear before using machine.
7. Never wear loose or bulky clothing around
machine. Use additional safety equipment, such
as hard hats, eye and ear protection, safety
boots, etc., as needed.
8. Do not modify the machine. Unauthorized
modification can result in unsafe conditions that
lead to machine damage or personal injury.
Operation
1. Always stop the tractor, put in Park and turn off
engine before leaving the cab. Dismounting from
a moving tractor can cause serious injury or
death.
2. Consider turning radius of tractor and implement
in the field. Turning tractor too tight can cause
hitched implement to ride up on wheels which can
result in injury or equipment damage.
3. Pull machine only from the hitch at the end of the
tongue. Never pull from jack stand, safety chain,
or any point other than the hitch.
4. Never leave the tractor cab unattended while the
implement is running. Remove key and turn off
tractor before exiting the tractor cab.
5. Watch your surroundings at all times. Do not
operate with bystanders nearby, and avoid
contacting overhead obstructions.
6. Check that all guards and shields are
undamaged, installed, and secure before
operating implement.
7. Keep children out of the work area. Do not
operate or turn on machine while children are in
the area.
8. Do not operate near ditches, holes, steep slopes,
embankments, or other surfaces which may
collapse under the machine’s weight or tip the
machine over.
9. Never stand between tractor and implement
unless parking brake is applied.
!
!
i

UMRC Table of Contents Safety Information
Great Plains | 204-811M | 08/12/2021 4
Handling and Disposing of Chemicals
Agricultural chemicals can be dangerous. Improper
use can seriously injure persons, animals, plants, soil
and property.
1. Read chemical manufacturer’s instructions
carefully, and then take appropriate precautions
before use.
2. Wear protective clothing.
3. Wash hands and face before eating after working
with chemicals. Shower as soon as application is
completed for the day.
4. Apply only with acceptable wind conditions. Make
sure wind drift of chemicals will not affect any
surrounding land, people or animals.
5. Dispose of unused chemicals and chemical
waste as specified by the manufacturer. Observe
all the local ordinances and regulations in your
area.
Operation Noise Hazard
1. Use proper ear protection like headphones or
earplugs while working.
PTO
1. Wait until all moving components have
completely stopped before adjusting, cleaning, or
servicing any PTO driven equipment.
2. Before installing or using PTO driven equipment,
read the tractor manual and review the safety
labels attached to the equipment.
3. When operating stationary PTO driven
equipment, always apply the parking brake and
place chocks behind wheels.
4. Stay clear of and never step over any rotating
parts.
Maintenance
1. Understand procedure before doing work. Use
proper tools and equipment.
2. Work in a clean, dry area.
3. Lower the implement. Put tractor in Park, turn off
engine. To prevent unauthorized starting, remove
key before performing maintenance or service
work.
4. If work must be performed with wings raised, set
the wing tilt locks to the road position.
5. Make sure all moving parts have stopped and all
system pressure is relieved.
6. Relieve hydraulic pressure before disconnecting
hydraulic lines or performing any work on the
system.
7. Do not work underneath any hydraulically
supported components. Hydraulics can settle,
leak, or be accidentally lowered. If working
underneath hydraulically supported components
is necessary, secure implement with stands or
suitable blocking beforehand.
8. Disconnect electronic monitor and lighting
harness from the tractor before servicing or
adjusting electrical systems.
9. Before welding, disconnect electronic monitor and
lighting harness from the tractor. Protect hydraulic
lines. Avoid fumes from heated paint.
10. Remove buildup of grease, oil, or debris.
11. Check and replace worn brake lines as needed.
12. Remove all tools and unused parts from
implement before operation.
Tire Safety
1. Check tires for cuts, bulges, and correct
pressure. Replace worn or damaged tires.
2. Tire changing can be hazardous and must be
performed by trained personnel using correct
tools and equipment.
3. Tire explosion and/or serious injury can result from
over inflation. Do not exceed tire inflation
pressures.
4. When removing and installing wheels, use wheel-
handling equipment adequate for weight involved.
5. Tighten wheel bolts only to the specified torque.

Great Plains | 204-811M | 08/12/2021 5
UMRC Table of Contents Safety Information
High Pressure Fluids
1. Escaping fluid from holes in hydraulic lines is
difficult to spot. Do not use your hands or bare
skin to search for suspected leaks; instead, use a
piece of cardboard or wood. If injured by
escaping hydraulic fluid, see a medical
professional immediately. Exposure can result in
gangrene or severe allergic reaction.
2. Check that hydraulic fittings are tight and all
hydraulic hoses and lines are in good condition
before applying pressure to the system.
3. Wear protective gloves and safety glasses or
goggles when working with hydraulic systems.
Transporting
1. As with transporting any piece of heavy
machinery, comply with all local laws and
regulations before and during transport process.
2. Transport only at recommended transport speed
for implement. Some rough terrains require a
slower speed. Sudden braking can cause a
towed load to swerve and upset.
3. Before towing implement on roads, make sure to
empty out all material from the hoppers or boxes.
4. Know transport height and width of implement.
5. Do not tow an implement that, when fully loaded,
weighs more than 1.5 times the weight of towing
vehicle.
6. Keep clear of overhead power lines and other
obstructions when transporting.
7. Do not fold or unfold the implement while the
tractor is moving.
8. Reduce speed when turning, and make as wide a
turn as possible. Turning tractor too tight can
cause implement to tip over.
9. When towing on a trailer, secure implement with
tie downs and chains.
10. When towing on a trailer, sudden braking can
cause a trailer to swerve and upset. Reduce
speed if trailer is not equipped with brakes.
Safety Chain
1. Use a chain with a strength rating equal to or
greater than the gross weight of towed machinery.
2. Replace chain if any links or end fittings are
broken, stretched or damaged.
3. Do not use safety chain for towing.
Safety Lights and Devices
1. Always use safety lighting. Slow-moving tractors
and towed machinery can create a hazard when
driven on public roads. They are difficult to see,
especially at night.
2. If equipped, use flashing warning lights and turn
signals whenever driving on public roads.
3. Use safety devices provided with implement.
4. Keep safety lights and signs clean and visible from
front and rear of machine.
5. Keep lights in operating condition.
Shutdown and Storage
1. Park the tractor and implement on a solid, level
surface where children normally do not play.
2. Fold and tilt wings.
3. Put tractor in park or set the parking brake. Turn
off engine and remove switch key to prevent
unauthorized starting.
4. Wait for all components to come to a complete
stop before leaving the operator’s seat.
5. Turn lockout valve and wing lock levers to locked
position to prevent the wings from lowering.
6. Detach the tractor. Secure the implement using
blocks.
Proper Waste Disposal
1. Dispose of waste properly to avoid threatening
the environment and ecology. Potential harmful
waste includes oil, fuel, filters, and batteries.
2. Use a leak-proof container for draining fluids. Do
not use a food or beverage container that may be
mistaken for a consumable product.
3. Do not drain or pour waste onto the ground,
down a drain, or into any water source.
4. Contact your local environmental or recycling center
for the proper way to recycle or dispose of waste.

UMRC Table of Contents Safety Decals
Great Plains | 204-811M | 08/12/2021 6
Safety Decals
Your implement comes equipped with safety
reflectors and decals in place.
Read and follow decal directions. Keep all safety
decals clean and legible. Replace all damaged,
faded, 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:
Clean the area on which the decal is to be placed.
Peel backing from decal. Press firmly on surface,
being careful not to cause air bubbles under decal.
Warning: Sharp Object Hazard
818-525C
Top of RC arm gusset;
1 total per RC
818-525C
WARNING
SHARP OBJECT HAZARD
To prevent serious injury or Death from Sharp Objects:
Keep hands, feet, hair, & clothing away from tines.
DO NOT stand or climb on machine when operating.
Keep others away.
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Great Plains | 204-811M | 08/12/2021 7
UMRC Table of Contents Preparation and Setup
Preparation and Setup
Before You Start
WARNING: Row cleaner tines are sharp.
UMC blades are sharp. Wear gloves when han-
dling these parts. Maintain awareness of
installed coulters and row cleaners when work-
ing in front of row units.
Perform these steps before installing your row
cleaners.
1. Read and understand the “Safety Information”
section.
2. Hitch the implement to a suitable tractor. Refer to
the hitching topic in the Operator Manual for your
implement.
3. Position the implement in a level, dry, well-lighted
area. Pick a location with a clear surface
beneath, so that any dropped tools or parts can
be easily located.
4. Unfold the implement.
5. Raise the implement (or leave it raised).
6. Install any lift locks provided.
7. Set all hydraulic circuits to neutral.
8. Shut off the tractor. Set the parking brake.
General Assembly Instructions
Start mounting with the left-most row unit of the
implement. Single-arm row cleaners are
provisioned as left and right hand pairs. Start with a
left hand row cleaner, and alternate left-right-left-
right across the implement.
Some fasteners may be loosely assembled.
Remove them before mounting that component.
Due to evolving manufacturing practices, some
assemblies may already be completely
pre-assembled. If so, check that fasteners are tight,
and skip the unneeded assembly steps.
Wheel bearings are pre-greased and should not
require additional lubrication until the first service
interval.
Tools Required
Basic hand tools, including an extension for any
socket or air wrench to be used.
Screw thread adhesive, such as Loctite.
UMRC Installation
For Unit-Mount Row Cleaners (no UMC disk
coulters).
Unit-Mount Row Cleaners (UMRCs) are used only
on 5000 series row units which have no
accessories forward of the openers (other than a
disc shield ).
In the case of plain 5000 series row unit, the UMRC
mounts on the front face of the row unit shank.
!
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UMRC Table of Contents Preparation and Setup
Great Plains | 204-811M | 08/12/2021 8
Install UMRC Adjuster Parts
1. Select one of each:
207-141D PLATE, ROW CLEANER DEPTH T
207-326H ROW CLEANER UM MOUNT HIGH
(shown) or
207-325H ROW CLEANER UM MOUNT LOW
805-362C PIN CLVS.38X1.75 USBL
805-301C PIN CLVS HDLS 1.13X7.12 USB
817-084C PARALLEL ARM PIVOT BUSHING
2. Press bushings into mount .
3. Insert the tee handle in the weldment
with the adjustment holes up. Hold in place with
the clevis pin and cotter pin . Pin the tee
handle at the highest position.
Install UMRC Mount Weldment
4. Select the mount partially assembled above.
5. Select four sets of:
802-106C RHSNB 1/2-13X1 1/2 GR5
804-015C WASHER LOCK SPRING 1/2
803-020C NUT HEX 1/2-13
6. Attach the UMRC mount weldment to the
row unit shank face using the four sets of
fasteners.
Install the UMRC Cleaner Arm
7. Select one of the following, depending on kits:
207-306H ROW CLEANER ARM ASY UM
207-329H ROW CLEANER ARM UM NARROW
207-332H ROW CLEANER ARM UM TR LH
(odd rows)
207-333H ROW CLEANER ARM UM TR RH
(even rows)
8. Select one each:
207-133D TUBE, PIVOT .75X4.400 LONG
842-559C HFS 1/2-13X5 GR5 PLT
803-169C NUT HEX FLG LOCK 1/2-13 PLT
818-525C DECAL SHARP OBJECT WARNING
9. Line up arm weldment ( , , , or ) in
place at mount over holes with bushings
installed.
10. Insert pivot tube through the arm weldment
and mount.
11. Insert bolt through the installed pivot tube.
Secure with nut .
12. Clean and dry the surface of the gusset on the
arm weldment and apply the decal .
13. Repeat UMRC step 1-14 for all rows.
Skip to “Install Cleaner Wheel Assemblies”
3
12
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5
1
2
3
4
552
12
34
2
3
4
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2
3
4
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75452
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34
5
6
7
8
9
1
2
3
4
5
6
7
8
1 2 3 4
5
6
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Great Plains | 204-811M | 08/12/2021 9
UMRC Table of Contents Preparation and Setup
Install CMRC Cleaner Arms
For Unit-Mount Coulter - Row Cleaners (disk
coulters present).
CMRC kits do not include a mount weldment, as
they rely on mounts on the UMC brackets . If
the UM coulter mounts are not yet on the
implement, install them before installing the row
cleaners, but do not install the coulter blades until
step 11 below.
WARNING: If the Unit Mounted Coulter
blades are already installed, exercise extra care
while installing the row cleaners.
The CMRC itself is mounted directly on the coulter
mount.
1. Select one of the following, depending on kits:
207-323H ROW CLEANER ARM CM
207-327H ROW CLEANER ARM CM
207-328H ROW CLEANER ARM CM NARROW
207-330H ROW CLEANER ARM CM TR LH
(odd rows)
207-331H ROW CLEANER ARM CM TR RH
(even rows)
2. Select two each:
803-169C NUT HEX FLG LOCK 1/2-13 PLT
804-017C WASHER FLAT 1/2 USS PLT
207-135D LONG UMC RC PIVOT TUBE
817-615C RC ARM PIVOT BUSHING
804-029C WASHER FLAT 1 SAE
802-456C HFS 1/2-13X2 GR8
3. Select one:
818-525C DECAL SHARP OBJECT WARNING
4. If the row cleaner wheels are already installed on
the arm, use a large block of wood placed on the
ground to support the weight of the row cleaner
wheels while completing steps 5 and 6.
5. Position the row cleaner arm ( , , , ,
or ) inside the ears on the coulter arm. While
trapping the flat washer under the flange on
the pivot bushing, push bushing and pivot
tube through the hole in the coulter arm and
into the pivot hole on the row cleaner arm.
6. Repeat step 5 on the opposite side.
7. Install the bolt from the inside of the arm,
through the bushing and secure with the flat
washer and the nut .
8. Repeat on step 7 on the opposite side.
9. Torque both nuts to spec.
10. Clean and dry the surface of the gusset on the
arm weldment and apply the decal .
11. If a coulter is also being installed, mount the
blade.
12. Repeat UMC-RC step 1 through step 8 for all
rows.
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UMRC Table of Contents Preparation and Setup
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Install Cleaner Wheel Assemblies
Row cleaner wheels are pre-assembled. Each
assembly is intended for either left or a right
mounting.
207-142V RIGID ROW CLEANER ASM RH
207-143V RIGID ROW CLEANER ASM LH
If any identifying tags or packaging are separated
from a wheel, you can identify the wheel type by a
part number stamped in spoked wheel face. Left
and right wheels have part numbers ending in “L”
and “R”, respectively.
The first wheel to be mounted is a left wheel.
Whether single- or dual-arm, the next wheel is a
right, and they alternate left-right across the
implement.
Notice:
Be sure to mount left wheels on left arms or on
the left side of dual arms, and vice-versa for
right. Unsatisfactory row cleaning and
premature cleaner wear may otherwise result.
Wheel Placement
Each arm (and each side of a dual arm) has two
mounting holes for cleaner wheels. Which hole(s) to
use is dependent on your field conditions and field
experience.
Review the topic “Wheel Placement” on page 13,
and make a determination as to which hole(s) to
use for the initial mounting. If no clear choice
emerges, use the forward holes.
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UMRC Table of Contents Preparation and Setup
Mount a Left Wheel
13. Select one:
207-330H ROW CLEANER ARM CM TR LH
14. Partially disassemble it (some parts my be
attached by cable ties), freeing the:
802-657C HFS 5/8-11X1 3/4 GR8
828-057C RC HUB LOCK
15. Insert the bolt through the selected arm hole
from inside the arm. If a flat washer is present, it
is not used.
16. Place the hub lock over the bolt threads from
outside the arm, with the bent edge of the lock up
and toward the inside of the arm. This lock
prevents the back face of the hub from rotating
while you secure the bolt in the next step.
17. Place the cleaner wheel assembly on the
bolt, and screw the bolt into the wheel hub. Use
the lock, up against the hub, to prevent hub
rotation. Torque bolt to specifications once hub
and lock are fully seated.
Mount a Right Wheel
18. Select one:
207-331H ROW CLEANER ARM CM TR RH
19. Partially disassemble it (some parts may be
attached by cable ties), freeing the:
802-657C HFS 5/8-11X1 3/4 GR8
828-057C RC HUB LOCK
20. Insert the bolt through the selected arm hole
from inside the arm. If a flat washer is present, it
is not used.
21. Place the hub lock over the bolt threads from
outside the arm, with the bent edge of the lock up
and toward the inside of the arm. This lock
prevents the back face of the hub from rotating
while you secure the bolt in the next step.
22. Place the cleaner wheel assembly on the
bolt, and screw the bolt into the wheel hub. Use
the lock, up against the hub, to prevent hub
rotation. Torque bolt to specifications once hub
and lock are fully seated.
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UMRC Table of Contents Preparation and Setup
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Install Down Stop (CMRC Only)
If you have installed CMRC, the adjuster hardware
is already installed. Skip this section and make final
adjustments per the Operation section.
The height adjustment for CMRC units is a sliding
stop.
23. Select one:
207-309H UMC ROW CLEANER ADJUSTER
24. Select one set of:
802-569C HFSS 3/8-16X1 1/2 GR5
803-209C NUT FLANGE LOCK 3/8-16 PLT
805-091C PIN CLVS .38X1.52 USBL
805-031C PIN HAIR COTTER .098 WIRE
Note: on single-wheel arms, the down stop
mounts on the side of the arm with the wheel.
On dual-wheel arms, the down stop may be
mounted on either side, and you may want to
select a location on a per-row basis, for ease of
access for adjustments.
25. Swing the cleaner arm up until the tines are well
above the height of the bottom edge of the row
unit opener disks. Support the arms at this
height.
26. From underneath the arm , orient the tip end
of the down-stop forward, and slide the down
stop up onto the arm. Temporarily secure with
the bolt , using the rear bolt hole.
27. Loosely add the nut to the bolt.
28. If you know the initial height at which you desire
to operate the cleaner (from the next section), set
the cleaner arm at that height and support it
there.
29. Slide the adjuster back until it contacts the
coulter bracket. Secure the nut. Add the pin
and secure with the cotter pin .
The adjuster should be able to move if you have
the pin taken out of the adjuster. If the adjuster
cannot slide after removing the pin, the nut is
secured too tightly.
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UMRC Table of Contents Operation
Operation
Adjustment
Wheel Placement
Cleaner arms have two alternate mounting holes for
cleaner wheels. Which hole to use depends on your
field conditions, experience, and preference. Great
Plains suggests starting with the “more aggressive”
positions.
Too aggressive row cleaner use can remove treated
soil from the seed furrow area, reducing effective-
ness of treatments.
Make the placement choice prior to setting row
cleaner depth, as moving the wheel position
changes the depth. When changing placement, be
sure to re-adjust the depth.
Dual Wheel Placement
Offset Dual Wheel
Start with this “more aggressive” configuration.
Mounting one wheel forward and one wheel
retracted allows the wheels to rotate independently
while still keeping one close to center line.
Retracted Dual Wheel
This setting is the least aggressive. If clogging
occurs with offset, try retracted.
Retracted may also be necessary to shorten the
overall length of the row cleaner, and provided
greater clearance from leading equipment or
accessories.
Intersected Dual Wheel
Not recommended
In this configuration, the disk tines mesh. This is an
extremely aggressive placement, and is not recom-
mended by Great Plains, as it causes excess tine
wear and is prone to clogging and rotation stop-
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UMRC Table of Contents Operation
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Single Wheel Placement
Single Wheel Forward
This is the most aggressive placement, putting the
disk closest to the row unit centerline, and is
suggested for no-till conditions.
Single Wheel Retracted
This is a less aggressive placement, and may be
preferred for tilled conditions.
Row Cleaner Depth
Make adjustments to wheel placement before
setting row cleaner depth. Changing placement
changes depth. Make any planned changes to
opener disk height (T-handle) before adjusting row
cleaner.
WARNING: Be careful when working around
row cleaners. Tines and disk corners are sharp.
Coulter Blades present are sharp. Use a jack or
block to support the tines while setting the
adjuster.
Selecting Depth
Set the depth so that the row cleaner tines are at or
slightly above the soil line. Monitor your results, and
adjust the height as needed to clear residue but not
overly disturb the soil (or trench).
Row Cleaner Lock-up
To prevent a row cleaner from operating at all, set
the height to maximum.
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UMRC Table of Contents Operation
Adjusting UMRC Depth
A large screwdriver, long small bolt, or rod can
be used to hold the row cleaner arm up while
the height adjustments are made.
1. Raise the row cleaner arm until the holes in the
mount are visible under the arm. Insert a large
screwdriver through the cross holes then lower
the arm onto the screwdriver.
2. Remove the tee plate clevis pin.
3. Raise or lower the tee plate to the desired stop
height.
4. Re-install the tee plate, clevis pin, and cotter.
5. While holding the row cleaner arm, remove the
screwdriver then lower the arm onto the tee
plate.
6. Check the height of the row cleaner relative to
the opener disks and re-adjust if needed.
Six small height indicator tabs are provided on
the mount to aid in setting the height of the tee
plate.
Adjusting CMRC Depth
1. Remove pin from adjuster stop.
2. Raise row cleaner arm to slightly higher than
desired operating height and support it at this
height.
3. Tilt the adjuster stop slightly and move it up until
it contacts the coulter bracket. Re-insert clevis
pin and secure with cotter pin.
4. Relax the cleaner arm and check height relative
to opener disks.
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