GREAT PLAINS RCB6610 User manual
Table of Contents
Manufacturing, Inc.
www.greatplainsmfg.com
EN
ORIGINAL INSTRUCTIONS
11 / 2 1 / 16
Read the operation 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!
Illustrations may show optional equipment not supplied with standard unit.
39936
© Copyright 2016 Printed 334-291M
11/21/16
Operator Manual
RCB(M)6610
Rotary Cutters
Table of Contents
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
© Copyright 2016 All rights Reserved
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been
taken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products as
it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.
Trademarks of Great Plains Manufacturing, Inc. include: AccuShot, Max-Chisel, Row-Pro,
Singulator Plus, Short Disk, Swath Command, Terra-Tine, Ultra-Chisel, and X-Press.
Registered Trademarks of Great Plains Manufacturing, Inc. include: Air-Pro, Clear-Shot, Discovator, Great Plains, Land Pride, MeterCone,
Nutri-Pro, Seed-Lok, Solid Stand, Terra-Guard, Turbo-Chisel, Turbo-Chopper, Turbo-Max, Turbo-Till, Ultra-Till, Whirlfilter, and Yield-Pro.
Brand and Product Names that appear and are owned by others are trademarks of their respective owners.
Printed in the United States of America
Table of Contents
Important Safety Information . . . . . . . . . . . . . 1
Safety at All Times . . . . . . . . . . . . . . . . . . . . . . . . . 1
Look For The Safety Alert Symbol . . . . . . . . . . . . . . 1
Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . 11
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . 11
Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Section 1: Assembly & Set-up . . . . . . . . . . . 12
Tractor Requirements . . . . . . . . . . . . . . . . . . . . . . 12
Horsepower . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drawbar Set-up . . . . . . . . . . . . . . . . . . . . . . . . . 12
PTO Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hydraulic Outlets . . . . . . . . . . . . . . . . . . . . . . . . 12
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Torque Requirements . . . . . . . . . . . . . . . . . . . . . . 12
Hitch Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hitch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Park Jack Assembly . . . . . . . . . . . . . . . . . . . . . . . 14
Tractor Shutdown Procedure . . . . . . . . . . . . . . . . . 14
Standard Clevis Hitch Hook-up . . . . . . . . . . . . . . . 15
Performance Hitch Hook-up . . . . . . . . . . . . . . . . . 16
Bar-Tite Hitch Hook-up . . . . . . . . . . . . . . . . . . . . . 17
Hydraulic Plumbing . . . . . . . . . . . . . . . . . . . . . . . . 18
Hydraulic Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . 18
Unfolding Wing Deck . . . . . . . . . . . . . . . . . . . . . . . 18
Driveline Installation . . . . . . . . . . . . . . . . . . . . . . . 20
Driveline Hook-up to Tractor PTO . . . . . . . . . . . . . 21
Adjust Driveline Hanger . . . . . . . . . . . . . . . . . . . . . 21
Driveline Clearance Check . . . . . . . . . . . . . . . . . . 21
Purge Hydraulic System . . . . . . . . . . . . . . . . . . . . 22
Lift Cylinder Mounting Position . . . . . . . . . . . . . . . 23
Rephase Lift Cylinders . . . . . . . . . . . . . . . . . . . . . 23
Slow Moving Vehicle Sign (SMV) . . . . . . . . . . . . . 23
Adjust Optional Light Kit . . . . . . . . . . . . . . . . . . . . 24
Remove Shipping Lugs . . . . . . . . . . . . . . . . . . . . . 24
Unhook Rotary Cutter . . . . . . . . . . . . . . . . . . . . . . 25
Section 2: Adjustments . . . . . . . . . . . . . . . . . 26
Park Jack Angle Alignment . . . . . . . . . . . . . . . . . . 26
Leveling Center Deck & Wing . . . . . . . . . . . . . . . . 26
Center Deck Leveling . . . . . . . . . . . . . . . . . . . . . 26
Cutting Height Adjustment . . . . . . . . . . . . . . . . . . . 28
Performance Hitch Hole Size . . . . . . . . . . . . . . . . 28
Section 3: Operating Instructions . . . . . . . . 29
Startup Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . 29
Avoid Extreme Turning Angles . . . . . . . . . . . . . . . 30
Tractor & Cutter Inspection . . . . . . . . . . . . . . . . . . 31
Blade Operation Inspection . . . . . . . . . . . . . . . . . . 31
Transport Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Road Side Cutting . . . . . . . . . . . . . . . . . . . . . . . . . 32
Field Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Inspect Field and Cutter Blades . . . . . . . . . . . . . 33
Lower Wing Down & Set Cutting Height . . . . . . . 33
Set Wing Lift Lever In Float Position . . . . . . . . . . 33
Rephasing Lift Cylinders . . . . . . . . . . . . . . . . . . . 34
Select Gear Range . . . . . . . . . . . . . . . . . . . . . . . 34
Engage Blades . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Disengage Blades . . . . . . . . . . . . . . . . . . . . . . . 34
General Operating Instructions . . . . . . . . . . . . . . . 35
Section 4: Options & Accessories . . . . . . . . 36
Light Kit Option (LED) . . . . . . . . . . . . . . . . . . . . . . 36
Tool Box Option . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Installation Instructions . . . . . . . . . . . . . . . . . . . . 37
Mechanical Wing Lift . . . . . . . . . . . . . . . . . . . . . . . 38
Installation Instructions . . . . . . . . . . . . . . . . . . . . 38
Operating Instructions . . . . . . . . . . . . . . . . . . . . 38
Safety Guard Options . . . . . . . . . . . . . . . . . . . . . . 39
Low Lift Blade Accessory . . . . . . . . . . . . . . . . . . . . 39
Tire & Axle Options . . . . . . . . . . . . . . . . . . . . . . . . 39
Hitch Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Selector Control Valve Kit . . . . . . . . . . . . . . . . . . . 39
Section 5: Maintenance & Lubrication . . . . . 40
General Maintenance Information . . . . . . . . . . . . . 40
Tractor Maintenance . . . . . . . . . . . . . . . . . . . . . . . 40
Skid Shoes & Side Skirt . . . . . . . . . . . . . . . . . . . . . 40
Center Skid Shoes . . . . . . . . . . . . . . . . . . . . . . . 40
Wing Skid Shoe . . . . . . . . . . . . . . . . . . . . . . . . . 40
Side Skirt With Skid Shoes Attached . . . . . . . . . 40
Weight Box Skid Shoe . . . . . . . . . . . . . . . . . . . . 41
Gearbox Shaft Guard . . . . . . . . . . . . . . . . . . . . . . 41
Cutter Blade Maintenance . . . . . . . . . . . . . . . . . . . 42
Drivelines With Slip Clutches . . . . . . . . . . . . . . . . . 44
Type A Clutches . . . . . . . . . . . . . . . . . . . . . . . . . 44
Type B Clutches . . . . . . . . . . . . . . . . . . . . . . . . . 46
Tire Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . . 48
Ordering Replacement Parts . . . . . . . . . . . . . . . . . 48
Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . 49
Section 6: Specifications & Capacities . . . . . 56
Section 7: Features & Benefits . . . . . . . . . . . 58
Section 8: Troubleshooting . . . . . . . . . . . . . . 60
Section 9: Torque & Tire Inflation Charts . . . 62
Section 10: Warranty . . . . . . . . . . . . . . . . . . . 63
1
Important Safety Information
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Table of Contents
Important Safety Information
These are common practices that may or may not be applicable to the products described in
this manual.
Safety at All Times
Thoroughly read and understand
the instructions given in this
manual before operation. Refer to
the “Safety Label” section, read all
instructions noted on them.
Do not allow anyone to operate
this equipment who has not fully
read and comprehended this
manual and who has not been
properly trained in the safe
operation of the equipment.
The operator must not use drugs
or alcohol as they can change the
alertness or coordination of that
person while operating equipment.
The operator should, if taking over-
the-counter drugs, seek medical
advice on whether he/she can
safely operate the equipment.
Operator should be familiar with all
functions of the tractor and
attachments, and be able to
handle emergencies quickly.
Make sure all guards and shields
are in place and secured before
operating implement.
Keep all bystanders away from
equipment and work area.
Operator must start tractor and
operate controls from the driver’s
seat only. Never from the ground.
Do not leave tractor or implement
unattended with engine running.
Dismounting from a moving tractor
can cause serious injury or death.
Do not allow anyone to stand
between tractor and implement
while backing up to implement.
Keep hands, feet, and clothing
away from power-driven parts.
Watch out for fences, trees, rocks,
wires, etc., while operating and
transporting implement.
Turning tractor too tight may cause
hitched machinery to ride up on
wheels. This could result in injury
or equipment damage.
Look For The Safety Alert 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.
Tractor Shutdown & Storage
If engaged, disengage PTO.
Lower attached implement to
ground, put tractor in park or set
park brake, turn off engine, and
remove switch key to prevent
unauthorized starting.
Wait for all components to come to
a complete stop before leaving the
operator’s seat.
Detach and store implement in an
area where children normally do
not play. Secure implement using
blocks and supports.
OFF
REMOVE
Be Aware of
Signal Words
A Signal word designates a degree or
level of hazard seriousness. The
signal words are:
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.
!
DANGER
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.
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.
!
WARNING
!
CAUTION
For Your Protection
Thoroughly read and understand
the “Safety Label” section, read
all instructions noted on them.
2
Important Safety Information
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
These are common practices that may or may not be applicable to the products described in
this manual.
Use Safety
Lights and Devices
Slow moving tractors,
self-propelled equipment, and
towed implements can create a
hazard when driven on public
roads. They are difficult to see,
especially at night.
Flashing warning lights and turn
signals are recommended
whenever driving on public roads.
Use A Safety Chain
A safety chain will help control
drawn machinery should it
separate from the tractor drawbar.
Use a chain with the strength
rating equal to or greater than the
gross weight of the towed
machinery.
Attach the chain to the tractor
drawbar support or other specified
anchor location. Allow only
enough slack in the chain to
permit turning.
Do not use safety chain for towing.
Maximum transport speed for an
attached implement is 20 mph. DO
NOT EXCEED. Never travel at a
speed which does not allow
adequate control of steering and
stopping. Some rough terrains
require a slower speed.
As a guideline, use the following
maximum speed weight ratios for
an attached implement:
20 mph when weight of attached
implement is less than or equal to
the weight of machine towing the
implement.
10 mph when weight of attached
implement exceeds weight of
machine towing implement but
not more than double the weight.
IMPORTANT: Do not tow a load
that is more than double the weight
of the machine towing the load.
Transport
Machinery Safely
Comply with state and local laws.
Use towing vehicle and trailer of
adequate size and capacity.
Secure equipment towed on a
trailer with tie downs and chains.
Sudden braking can cause a trailer
to swerve and upset. Reduce
speed if trailer is not equipped with
brakes.
Avoid contact with any over head
utility lines or electrically charged
conductors.
Engage parking brake when
stopped on an incline.
Practice Safe Maintenance
Understand procedure before doing
work. Use proper tools and
equipment, refer to Operator’s
Manual for additional information.
Work in a clean dry area.
Lower attached implement to the
ground, put tractor in park, turn off
engine, and remove key before
performing maintenance.
Allow implement to cool before
working on it.
Disconnect battery ground cable (-)
before servicing or adjusting
electrical systems or before welding
on implement.
Do not grease or oil implement
while it is in operation.
Replace parts on this machine with
genuine Great Plains parts only. Do
not alter this machine in a way
which will adversely affect its
performance.
Remove buildup of grease, oil, or
debris.
Remove all tools and unused parts
from implement before operation.
3
Important Safety Information
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
These are common practices that may or may not be applicable to the products described in
this manual.
Prepare for Emergencies
Be prepared if a fire starts.
Keep a first aid kit and fire
extinguisher handy.
Keep emergency numbers for
doctor, ambulance, hospital, and
fire department near phone.
Keep Riders Off
Machinery
Never carry riders or use
machinery as a person lift.
Riders obstruct operator’s view.
Riders could be struck by foreign
objects or thrown from the
machine.
Never allow children to operate
equipment.
Avoid High
Pressure Fluids Hazard
Escaping fluid under pressure can
penetrate the skin causing serious
injury.
Avoid the hazard by relieving
pressure before disconnecting
hydraulic lines or performing work
on the system.
Make sure all hydraulic fluid
connections are tight and all
hydraulic hoses and lines are in
good condition before applying
pressure to the system.
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.
DO NOT DELAY. If an accident
occurs, see a doctor familiar with
this type of injury immediately. Any
fluid injected into the skin or eyes
must be treated within
a few hours or
gangrene may
result.
Tire Safety
Tire changing can be dangerous
and should be preformed by
trained personnel using the
correct tools and equipment.
When inflating tires, use a clip-on
chuck and extension hose long
enough to allow you to stand to
one side and NOT in front of or
over the tire assembly. Use a
safety cage if available.
When removing and installing
wheels, use wheel handling
equipment adequate for the
weight involved.
Use Seat Belt and ROPS
Operate only tractors equipped
with Roll-Over Protective
Structure (ROPS) and seat belt.
Fasten seat belt snugly and
securely to help protect against
serious injury or death from falling
and tractor overturn.
Wearing protective equipment
such as safety shoes, safety
glasses, hard hat, and ear plugs is
highly recommended.
911
Wear
Protective Equipment
Wear protective clothing and
equipment appropriate for the job.
Clothing should be snug fitting
without fringes and pull strings to
avoid entanglement with moving
parts.
Prolonged exposure to loud noise
can cause hearing impairment or
hearing loss. Wear suitable
hearing protection such as
earmuffs or earplugs.
Operating equipment safely
requires the operator’s full
attention. Avoid wearing radio
headphones while operating
machinery.
4
Important Safety Information
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
Safety Labels
Your Rotary Cutter comes equipped with all safety labels in
place. They were designed to help you safely operate your
implement. Read and follow their directions.
1. Keep all safety labels clean and legible.
2. Refer to this section for proper label placement. Replace
all damaged or missing labels. Order new labels from your
nearest Great Plains dealer. To find your nearest dealer,
visit our dealer locator at www.landpride.com.
3. Some new equipment installed during repair requires
safety labels to be affixed to the replaced component as
818-840C
Danger: Rollover Hazard
1 - Place: Left side of center deck
37690
37690
37690
818-130C
Caution! Use 540 RPM PTO only (RC Series cutters)
818-240C
Caution! Use 1000 RPM PTO only (RCM Series cutters)
818-276C
Warning! Rotating Blade Hazard
1 - Place: Left side of center deck
specified by Great Plains. When ordering new components
make sure the correct safety labels are included in the
request.
4. Refer to this section for proper label placement.
To install new labels:
a. Clean surface area where label is to be placed.
b. Spray soapy water onto the cleaned area.
c. Peelbacking from label and press label firmly ontothe
surface.
d. Squeeze out air bubbles with edge of a credit card or
with a similar type of straight edge.
6
Important Safety Information
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
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30164
30165
30165
30163
818-142C
Danger! Rotating Driveline - Keep Away
2 - Places: Top of wing gearbox shield and splitter
gearbox input shaft shield
818-564C
Danger! Rotating Blade
1 - Place: Rear of the right wing
818-556C
Danger! Thrown Object Hazard
1 - Place: Rear of the right wing
818-045C
Warning! Pinch Point
1 - Place: Top of rear center axle
7
Important Safety Information
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
30163
37609
37690
37690
37690
818-543C
Danger! Guard Missing - DO NOT Operate
2 - Places: Under spindle gearbox shields
818-552C
Danger! Rotating Driveline - Keep Away
1 - Place: Top of splitter shield
2 - Places: Main driveline and wing driveline
ROTATING DRIVELINE
KEEP AWAY!
8
Important Safety Information
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
13313
37690
37690
37690
838-588C
Warning! Folding Cutter Speed Warning
1 - Place: Located on hitch frame
838-094C
Warning! High Pressure
1 - Place: Located on hitch frame
818-540C
Danger! Shield Missing - DO NOT Operate
2 - Places: On wing drive line and main driveline
818-714C
Danger! Crushing Hazard
1 - Place: Located on hitch frame
9
Important Safety Information
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
30222
37690
30222
30163
30163
838-615C
2" x 9" Amber Reflector
2 - Places: Font left side of center deck and front left
side of weight box
838-615C
2" x 9" Amber Reflector
2 - Places: Left & right side of center deck rear axle.
818-229C
1 3/4" x 2 3/4" Amber Reflector
1 - Place: Front side of right transport lock
818-229C
1 3/4" x 2 3/4" Amber Reflector
1 - Place: Front right corner of right-hand wing
818-055C
Caution! Slow moving vehicle sign (SMV)
10
Important Safety Information
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
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30222
35938
27853
35938
838-614C
2" x 9" Red Reflector
1 - place: Back face of weight box
818-230C
11/16" x 2 13/16" Red Reflector
8 possible places:
1 - place: Back face of transport lock
3 - places: Back face of wheel arms
2 - places: Back face of optional mechanical winch
2 - places: Back face of optional tool box
Mechanical winch & Tool Box Options
3022
838-614C
2" x 9" Red Reflector
1 - place: Back face of wing axle
11
Introduction
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
Introduction
Owner Assistance
The Online Warranty Registration should be completed
by the dealer at the time of purchase. This information is
necessary to provide you with quality customer service.
The parts on your Rotary Cutter have been specially
designed by Great Plains and should only be replaced
with genuine Great Plains parts. Contact a Great Plains
dealer if customer service or repair parts are required.
Your Great Plains dealer has trained personnel, repair
parts, and equipment needed to service the implement.
Serial Number
Model No. _____________Serial No. ______________
For quick reference and prompt service, record model
number and serial number in the spaces provided above
and again on warranty page 63. Always provide model
number and serial number when ordering parts and in all
correspondences with your Great Plains dealer. Refer to
Figure 1 for location of your serial number plate.
Serial Number Plate Location
Figure 1
Further Assistance
Your dealer wants you to be satisfied with your new
cutter. If for any reason you do not understand any part of
this manual or are not satisfied with the service received,
the following actions are suggested:
1. Discuss the matter with your dealership service
manager making sure that person is aware of any
problems you may have and has had the opportunity
to assist you.
2. If you are still not satisfied, seek out the owner or
general manager of the dealership, explain the
problem, and request assistance.
3. For further assistance write to:
Great Plains Service Department
1525 East North Street
P.O. Box 5060
Salina, Ks. 67402-5060
30166
Great Plains welcomes you to the growing family of new
product owners. This Rotary Cutter has been designed
with care and built by skilled workers using quality
materials. Proper assembly, maintenance and safe
operating practices will help you get years of satisfactory
use from this machine.
Application
The RCB6610 & RCBM6610 Series 2 Rotary Cutters are
designed and built by Great Plains to provide excellent
cutting performance on gently sloping or slightly
contoured right-of-ways, roadsides, pastures, set-aside-
acres, or for residue in row crop fields. The 10’ cutting
width, 2" to 14" cutting height and ability to cut weeds and
brush up to 4 1/2" in diameter make them well suited for
these applications.
All listed models offer a pull-type, narrow A-frame hitch,
and Cat 5 conventional or Cat. 6 constant velocity main
driveline for attachment to 50-250 hp tractors. The
RCB6610 attaches to 540 RPM tractors and RCBM6610
attaches to 1000 RPM tractors.
They are also offered with various optional hitch types,
axle configurations, tires, safety guards, and deck rings
making them an excellent choice for agricultural, state,
and municipal mowing applications.
See “Specifications & Capacities” on page 56 and
“Features & Benefits” on page 58 for additional
information and performance enhancing options.
Using This Manual
•This Operator’s Manual is designed to help 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 contained within this manual was
current at the time of printing. Some parts may change
slightly to assure you of the best performance.
•To order a new Operator’s or Parts Manual, contact
your authorized dealer. Manuals can also be
downloaded, free-of-charge, from our website at
www.landpride.com.
•Store this manual in the dry storage tube located on top
of the splitter guard.
Terminology
“Right” or “Left” as used in this manual is determined by
facing forward in the direction the machine will operate
while in use unless otherwise stated.
Definitions
A special point of information related to the following
topic. Great Plains’ intention is this information must
be read & noted before continuing.
NOTE: A special point of information that the
operator should be aware of before continuing.
12
Section 1: Assembly & Set-up
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
Section 1: Assembly & Set-up
If your tractor is not equipped with two duplex outlets, an
optional control valve kit is available from your local Great
Plains dealer. See “Selector Control Valve Kit” on page
39 for information about the hydraulic kit.
Before You Start
Read and understand the operator’s manual for your
cutter. An understanding of how it works will aid in the
assembly and setup of your cutter.
It is best to go through the Assembly Checklist before
assembling the cutter. Speed up your assembly task and
make the job safer by having all needed parts and
equipment readily at hand.
Torque Requirements
See “Torque Values Chart” page 62 to determine
correct torque values when tightening hardware. See
“Additional Torque Values” at bottom of chart for
exceptions to common torque values.
Assembly Checklist
Check Reference
Have a fork lift or loader with properly sized chains and
safety stands capable of lifting and supporting the
equipment on hand.
Have a minimum of two people available during
assembly.
Make sure all major components and
loose parts are shipped with the machine.
Operator’s
Manual
Double check to make sure all parts,
fasteners, and pins are installed in the
correct location. Refer to the Parts
Manual if unsure. By double checking,
you will lessen the chance of using a bolt
incorrectly that may be needed later.
NOTE: All assembled hardware from the
factory has been installed in the correct
location. Remember location of a part or
fastener if removed during assembly.
Keep parts separated.
Operator’s
Manual
334-291M
Parts
Manual
334-291P
Make sure working parts move freely,
bolts are tight & cotter pins are spread.
Operator’s
Manual
Make sure all grease fittings are in place
and lubricated. Page 49
Make sure all safety labels are correctly
located and legible. Replace if damaged. Page 4
Make sure all red and amber reflectors
are correctly located and visible when
machine is in transport position.
Page 10
Make sure all tires are inflated to the
specified psi air pressure and all wheel
bolts and axle nuts are tightened to the
specified torque.
Page 62
Tractor Requirements
Horsepower
!WARNING
Do not use too small a tractor. Tractors that are too small can
be pushed around and/or flipped over by the weight of the
cutter. Tractors that are too large can damage the cutter.
Tractor horsepower should be within the range noted
below. Tractors outside the range must not be used.
Horsepower Rating . . . . . . . . . . . . . . . . . .50-250 HP
Drawbar Set-up
Refer to Figure 1-1:
Maintain proper distance, dimension A, between center
of drawbar hitch pin hole and end of tractor PTO shaft.
Hitch Type . . . . . . . . . . . . . . . . . . . . . . . . . . Draw Bar
540 RPM & 1 3/8", 1000 RPM Rear PTO Speed:
A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14"- 16"
B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8" - 10"
C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18" - 22"
1 3/4", 1000 RPM Rear PTO Speed:
A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18" - 20"
B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10" - 12"
C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18" - 22"
PTO to Drawbar Distance
Figure 1-1
PTO Speed
Rear PTO Speed:
Model RCB6610 . . . . . . . . . . . . . . . . . . . . 540 RPM
Model RCBM6610. . . . . . . . . . . . . . . . . . 1000 RPM
Hydraulic Outlets
Two duplex outlets are required. One to raise and lower
the cutter, and one to fold the wing. Float position is
highly recommended for the wing.
IMPORTANT: PTO damage may occur if distances
“A” and “B” are not properly maintained.
IMPORTANT: A PTO adaptor should not be used.
Using a PTO adaptor can damage the PTO.
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11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
Hitch Types
The cutter is factory supplied with the standard clevis
hitch. Other optional hitches are available. They include
Great Plains Performance hitch, bar-tite hitch, ball hitch,
and pintle hitch. See your nearest Great Plains dealer
should you want to change your hitch set-up.
Standard Clevis Hitch
Refer to Figure 1-2:
A clevis leveling rod attached to the underside of the
clevis keeps the clevis parallel with tractor drawbar at all
cutting heights. Cutter rotation about the tractor drawbar
is limited to slots located in the clevis’ upper and lower
plates and drawbar hole size.
Performance Hitch (Optional)
Refer to Figure 1-3:
The Performance Hitch is a drawbar friendly,
self-leveling hitch that pivots up and down and side-to-
side. It is held upright with customer-supplied hitch pin to
allow single-person hook-up.
Bar-Tite Hitch (Optional)
Refer to Figure 1-4:
The bar-tite hitch functions similar to the Performance
hitch except it clamps directly to the drawbar. The bar-tite
hitch is sandwiched between hardened steel plates to
eliminate drawbar wear. It has a bushing in the tongue to
extend hitch life. Bushing and hitch swivel are greasable.
Ball Hitch (Optional)
Refer to Figure 1-5:
Cutter rotation about the tractor drawbar is limited to
swivel movement over the 2 5/16" tractor mounted ball.
Pintle Hitch (Optional)
Refer to Figure 1-6:
A leveling rod attached to the underside of the pintle hitch
keeps the pintle parallel with the tractor drawbar at all
cutting heights. Cutter rotation about the tractor drawbar
is limited to movement about the pintle connection. The
pintle hitch is ideal for a drawbar hammer strap.
Standard Clevis Hitch
Figure 1-2
Performance Hitch
Figure 1-3
Bar-Tite Hitch
Figure 1-4
Ball Hitch
Figure 1-5
Pintle Hitch
Figure 1-6
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Section 1: Assembly & Set-up
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
Hitch Assembly
Refer to Figure 1-7:
1. Remove and discard 1/2" nuts (#9) and bolts (#6).
2. Rotate hitch (#4) down into pulling position as shown
in Figure 1-7.
3. Instructions “a” & “b” below are for cutters equipped
with standard clevis or pintle hitch. Skip to step 4 if
assembling the Performance, bar-tite, or ball hitch.
a. Attach clevis level rod (#2) to center deck lug and
clevis hitch (#1) with clevis pins (#12), flat
washers (#10), and cotter pins (#11).
b. Secure cotter pins (#11) by bending one or more
legs of each pin.
4. Attach hitch frame (#4) to leveling rods (#3) by
inserting 3/4" x 3" lg. bolts (#7) through leveling rod’s
outside clevis plate, hitch frame (#4), and out through
leveling rod’s inside clevis plate. Secure bolts with
nylock nut (#8). Draw nuts up snug, do not tighten.
5. Leveling rod adjustment will be made after the cutter
is attached to the tractor.
IMPORTANT: Insert bolts (#7) from outside the hitch
frame. Inserting bolts from inside the hitch will result
in them interfering with tractor tires.
Park Jack Assembly
Refer to Figure 1-7:
1. Attach park jack (#14) to jack mount (#5) and secure
with detent pin (#13).
2. If park jack is not vertical, adjust jack angle according
to “Park Jack Angle Alignment” on page 26.
3. Adjust jack up or down until clevis hitch (#1) is at
drawbar height.
Tractor Shutdown Procedure
The following is proper tractor shutdown procedures.
Always follows these procedures before dismounting
tractor.
1. If engaged, disengage PTO.
2. Lower attached implement to ground, put tractor in
park or set park brake, turn off engine, and remove
switch key to prevent unauthorized starting.
3. Wait for all cutter components to come to a complete
stop before leaving the operator’s seat.
Hitch & Jack Assembly
Figure 1-7
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Section 1: Assembly & Set-up
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
Standard Clevis Hitch Hook-up
!DANGER
A Crushing Hazard exists when hooking-up equipment to a
tractor. Do not allow anyone to stand between tractor and
implement while backing-up to implement. Do not operate
hydraulic 3-Point lift controls while someone is directly
behind the tractor or near the implement.
Refer to Figure 1-8:
1. Make certain park jack (#3) is properly attached to
cutter hitch and secured with detent pin (#8). If park
jack is not vertical, refer to “Park Jack Angle
Alignment” on page 26.
2. Start tractor and raise 3-point arms fully up.
3. Carefully back tractor within close proximity of
clevis (#9).
4. Shut tractor down properly before dismounting.Refer
to “Tractor Shutdown Procedure” on page 14.
5. Verify tractor drawbar is adjusted correctly. Refer to
“Drawbar Set-up” dimensions on page 12.
6. Raise or lower park jack (#3) to align clevis (#9) with
tractor drawbar. Drawbar should fit between lower
and upper plates of clevis.
7. Restart tractor and continue to back tractor up to
cutter hitch until hitch holes in tractor drawbar and
clevis hitch (#9) are properly aligned.
8. Shut tractor down properly before dismounting.
9. Attach cutter to tractor drawbar with customer
supplied hitch pin (#1) and hairpin cotter (#2).
10. Lower park jack (#3) until hitch weight is supported
by drawbar.
11. Remove park jack (#3) from the hitch and attach it to
the weight box with detent pin (#8). Make sure jack
base is level or lower than the jack crank head. See
cover picture for correct positioning.
12. Attach hitch safety chain (#4) to the tractor. Adjust
chain length to remove all slack except what is
necessary to permit turning. Lock chain hook
securely to the safety chain.
13. Continue with “Hydraulic Plumbing” on page 18
and “Driveline Installation” on page 20.
IMPORTANT: Ball detent pin (#8) must be fully
inserted in park jack (#3) before working on or
around a cutter not hooked to a tractor drawbar.
NOTE: Hitch pin (#1) and hairpin cotter (#2) are
supplied by customer.
IMPORTANT: Protect park jack by attaching it to the
weight box before moving the cutter. Make sure jack
is stored with its base level or lower than the head to
prevent water and freeze damage.
Tractor Hook-up to Standard Clevis Hitch
Figure 1-8
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Section 1: Assembly & Set-up
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
Performance Hitch Hook-up
!DANGER
A Crushing Hazard exists when hooking-up equipment to a
tractor. Do not allow anyone to stand between tractor and
implement while backing-up to implement. Do not operate
hydraulic 3-Point lift controls while someone is directly
behind the tractor or near the implement.
Refer to Figure 1-9:
1. Make certain park jack (#3) is properly attached to
the cutter hitch and secured with ball detent pin (#8).
2. Adjust park jack angle if it is not vertical. Refer to
“Park Jack Angle Alignment” on page 26.
3. If clevis (#9) is not already supported horizontal,
rotate clevis (#9) horizontal and flip hitch holder (#16)
up so that its holes are on top as shown.
4. Insert customer-supplied hitch pin (#1) through holes
in hitch holder (#16) as shown in detail A. Secure with
hairpin cotter (#2).
5. Store center 3-point link in its storage hook.
6. Start tractor and raise 3-point arms fully up.
7. Carefully back tractor within close proximity of
clevis (#9).
8. Shut tractor down properly before dismounting. Refer
to “Tractor Shutdown Procedure” on page 14.
IMPORTANT: Ball detent pin (#8) must be fully
inserted in park jack (#3) before working on or
around a cutter not hooked to a tractor drawbar.
NOTE: Hitch pin (#1) and hairpin cotter (#2) are
customer-supplied.
9. Verify tractor drawbar is adjusted correctly. Refer to
“Drawbar Set-up” dimensions on page 12.
10. Raise or lower park jack (#3) to align clevis (#9) with
tractor drawbar. Drawbar should fit between lower
and upper plates of clevis.
11. Restart tractor and continue to back tractor up to
cutter hitch until hitch holes in tractor drawbar and
hitch clevis (#9) are aligned.
12. Shut tractor down properly before dismounting.
13. Remove bushings in clevis if customer supplied hitch
pin diameter is larger than 1". See “Performance
Hitch Hole Size” on page 28 for instructions.
14. Remove hairpin cotter (2) and hitch pin (#1) from
hitch holder (#16) and rotate hitch holder down.
15. Attach cutter to tractor drawbar with hitch pin (#1) and
hairpin cotter (#2) as shown in detail B.
16. Lower park jack (#3) until hitch weight is supported
by tractor drawbar.
17. Remove park jack (#3) from jack mount (#15) and
attach it to the weight box with detent pin (#8). Make
sure jack base is level or lower than the jack crank
head. See cover picture for correct positioning.
18. Attach hitch safety chain (#4) to the tractor. Adjust
chain length to remove all slack except what is
necessary to permit turning. Lock chain hook
securely to the safety chain.
19. Continue with “Hydraulic Plumbing” on page 18
and “Driveline Installation” on page 20.
IMPORTANT: Protect park jack by attaching it to the
weight box before moving the cutter. Make sure jack
is stored with its base level or lower than the head to
prevent water and freeze damage.
Tractor Hookup to Performance Hitch
Figure 1-9
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Section 1: Assembly & Set-up
11 / 2 1 / 16 RCB(M)6610 Rotary Cutters 334-291M
Table of Contents
Bar-Tite Hitch Hook-up
Refer to Figure 1-10:
Attach Bar-Tite Hitch to Tractor Drawbar
1. Insert 1" x 5 1/2" hex bolt (#1) through hitch top
plate (#2), hitch bushing (#3), hitch wear plate (#4),
tractor drawbar (#5), and washer (#6) as shown.
Secure with 1" lock nut (#7). Tighten 1" lock nut
snugly to remove all play and then back nut
one-quarter turn. Do Not torque 1" lock nut.
2. Insert two 3/4" x 6" GR5 hex bolts (#8) through,
3/4" flat washers (#9), hitch top plate (#2), hitch wear
plate (#4), and formed hitch support (#10) as shown.
Secure with 3/4" locknuts (#11).
3. Tighten 3/4" locknuts to correct torque.
4. Remove 1" x 6 1/2" GR5 hex bolt (#12) and 1" lock
nut (#13) from hitch bushing (#3). Keep bolt and lock
nut for reuse.
Attach Tractor to Rotary Cutter
!DANGER
A Crushing Hazard exists when hooking-up equipment to a
tractor. Do not allow anyone to stand between tractor and
implement while backing-up to implement. Do not operate
hydraulic 3-Point lift controls while someone is directly
behind the tractor or near the implement.
Refer to Figure 1-11:
1. Make certain park jack (#3) is properly attached to
cutter hitch and secured with detent pin (#8). If park
jack is not vertical, refer to “Park Jack Angle
Alignment” on page 26.
2. Store center 3-point link in the tractor storage hook.
3. Start tractor and raise 3-point arms fully up.
4. Carefully back tractor within close proximity of
clevis (#9).
5. Shut tractor down properly before dismounting. Refer
to “Tractor Shutdown Procedure” on page 14.
6. Verify tractor drawbar is adjusted correctly. Refer to
“Drawbar Set-up” dimensions on page 12.
7. Raise or lower park jack (#3) to align swivel
clevis (#9) with bolt hole in hitch bushing (#7).
8. Restart tractor and back tractor up to swivel
clevis (#9) until hole in hitch bushing (#10) aligns with
holes in swivel clevis (#9).
9. Shut tractor down properly before dismounting.
10. Insert 1" x 6 1/2" GR5 hex bolt (#1) through swivel
clevis (#9) and hitch bushing (#7). Secure hex bolt
with lock nut (#2). Tighten lock nut snugly to remove
all play. Do Not torque 1" lock nut.
IMPORTANT: Ball detent pin (#8) must be fully
inserted in park jack (#3) before working on or
around a cutter not hooked to a tractor drawbar.
Bar-Tite Hitch Assembly to Tractor Tongue
Figure 1-10
11. Lower park jack (#3) until hitch weight is supported
by the drawbar.
12. Remove park jack (#3) from the hitch and attach it to
the weight box with detent pin (#8). Make sure jack
base is level or lower than the jack crank head. See
cover picture for correct positioning.
13. Attach hitch safety chain (#4) to the tractor. Adjust
chain length to remove all slack except what is
necessary to permit turning. Securely lock chain
hook to the safety chain.
14. Continue with “Hydraulic Plumbing” on page 18
and “Driveline Installation” on page 20.
Tractor Hookup to Bar-Tite Hitch
Figure 1-11
22265
IMPORTANT: Protect park jack by attaching it to the
weight box before moving the cutter. Make sure jack
is stored with its base level or lower than the head to
prevent water and freeze damage.
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Section 1: Assembly & Set-up
RCB(M)6610 Rotary Cutters 334-291M 11/21/16
Table of Contents
Hydraulic Plumbing
!DANGER
Hydraulic fluid under high pressure can penetrate skin. Wear
protective gloves and safety glasses or goggles when working
with hydraulic systems. Use a piece of cardboard or wood
rather than hands when searching for hydraulic leaks. If
hydraulic fluid is injected into the skin or eyes, it must be
treated by a doctor familiar with this type of injury within a
few hours or gangrene may result. DO NOT DELAY.
Refer to Figure 1-12:
Located on the hand grips are symbols indicating if the
cylinder will extend or retract when hydraulic pressure is
applied to that hose. Make sure hand grips are on the
correct hoses. Use hand grip colors and symbols to aid in
hook-up.
Hydraulic Hose Hand Grips
Figure 1-12
Refer to Figure 1-14 on page 19:
Refer to Figure 1-14 to verify wing folding cylinder is
plumbed correctly. Make sure couplings (#4) with red
hand grips (#5 & #6) are attached to the right wing folding
cylinder. It is best if the wing folding cylinder (#1) is
connected to a duplex outlet with float option to allow the
wing to float with the contour of the ground while cutting.
Refer to Figure 1-15 on page 19:
The cutting/transporting height is controlled by two
rephasing lift cylinders (#1 & #2) which are plumbed
together to operate in unison. The decks will not lift
properly if rephasing cylinders are plumbed incorrectly.
See Figure 1-15 to verify plumbing. Make sure
couplings (#5) with black hand grips (#9 & #10) are
attached to lift cylinders (#1 & #2).
Hydraulic Hook-up
Refer to Refer to Figure 1-9 on page 16:
1. Route right wing cylinder hoses (#10) with red hand
grips through hose support loop (#13) and connect to
a tractor duplex outlet with float option if available.
2. Route lift cylinder hoses (#11) with black hand grips
through hose support loop (#13) and connect to a
tractor duplex outlet.
Hand Grips with Cylinder Extension Symbol
Hand Grips with Cylinder Retraction Symbol
35553
Unfolding Wing Deck
!CAUTION
Metal shipping bands are under tension. Always wear eye
protection when cutting bands. Keep head, body, and body
extremities away from areas a band will recoil into when cut.
!DANGER
Keep everyone out of the area where the wing deck will unfold
into. A wing that falls suddenly on a person will cause serious
bodily injury or death.
!WARNING
The wing deck is shipped leaning in towards the center deck.
A person will need to manually push the wing deck out pass
vertical position before it will lower under its own weight.
Before pushing on the wing deck:
•Make certain no one is in the area where the deck will
lower down into as it is unfolded.
•Make certain your footing is secure and you are clear of
any possible pinch points.
•Make certain you are standing on the center deck behind
and away from hydraulic hoses, hydraulic cylinders,
gearboxes, and drivelines so that you do not become
entangled in them as they move while the decks are unfolding.
Remove Shipping Bar
Figure 1-13
Refer to Figure 1-13:
1. Make sure cutter is parked on a level surface.
2. Place gear selector in park or set park brake, fully
retract wing hydraulic cylinder, shut tractor off, and
remove switch key before dismounting tractor.
3. Remove hex nylock nuts (#6 & #7), bolts (#4 & #5),
shipping strap (#1), and shipping tubes (#2 & #3).
Discard removed hardware (#1 thru #7).
4. See “DANGER” above. Cut and remove rear metal
shipping strap securing the wing deck wheel.
5. Set tractor control lever for the wing cylinder in float.
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