Great Plains FH6800HD Operator Manual
Table of Contents Index
Operator Manual
6000 Series Harrow
FH6424HD, FH6330HD, FH6336HD, FH6642HD,
FH6845HD, FH6848HD & FH6851HD
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!
31686
Illustrations may show optional equipment not supplied with standard unit, or may show
wider or narrower models where the topic function is identical.
ORIGINAL INSTRUCTIONS
© Copyright 2014 Printed 2014-04-28 564-070M
Table of Contents Index
EN
Table of Contents Index
Table of Contents Index
Great Plains Manufacturing, Inc. iii
Table of Contents
A.Important Safety Information...................................1
Safety Decals ................................................................. 5
Introduction ................................................................10
Description of Unit ........................................................10
Models Covered ........................................................... 10
Intended Usage ........................................................10
Document Family......................................................10
Using This Manual........................................................10
Definitions................................................................. 10
Owner Assistance ........................................................11
Preparation and Setup ...............................................12
Initial Setup...................................................................12
Post-Delivery/Seasonal Setup......................................12
Pre-Application Setup...................................................12
Hitching Harrow to Tractor ...........................................13
Electrical Hookup......................................................14
Hydraulic Hose Hookup............................................ 14
Operating Instructions...............................................15
Pre-Start Checklist .......................................................15
Unfold Harrow ..............................................................16
Fold ..............................................................................18
Transport ......................................................................19
Harrow Transport Weights........................................19
Transport Steps........................................................19
Field Operation.............................................................20
Field Set-Up Checklists ................................................20
Short-Term Parking ......................................................21
Long-Term Storage ...................................................... 21
Adjustments................................................................22
Wing Fold Height Adjustment.......................................22
FH6424HD to FH6642HD Wing Fold Height............22
FH6845HD to FH6851HD Wing Fold Height............ 23
FH6636 to FH6851HD Wing Adjustment ................. 24
Troubleshooting......................................................... 25
Maintenance and Lubrication ................................... 26
Maintenance ................................................................ 26
Hydraulic Maintenance ................................................ 27
Bleeding Hydraulics ................................................. 28
Lubrication and Scheduled Maintenance..................... 29
Options ....................................................................... 31
Appendix A - Reference Information........................ 32
Specifications and Capacities ...................................... 32
Model FH6400HD Specifications and Capacities .... 32
Model FH6600HD Specifications and Capacities .... 32
Model FH6800HD Specifications and Capacities .... 33
Tire Inflation & Warranty .............................................. 33
Torque Values Chart.................................................... 34
Appendix B - Initial Setup ......................................... 35
Post-Delivery Checklist ................................................ 35
Hitch Configuration ...................................................... 35
Hitch Height or Hitch Inversion................................. 35
Clevis Hitch .............................................................. 36
Category III Hitch ..................................................... 36
Tooth Angle.................................................................. 37
Spot Implement ........................................................ 37
Disconnect/Move Leading Chains............................ 37
Disconnect Trailing Chains ...................................... 38
Reconnect Leading Chains ...................................... 38
Reconnect Trailing Chains ....................................... 38
Install Row Extensions................................................. 39
Install Wing Extensions................................................ 40
Index............................................................................ 43
© Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 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.
04/28/2014 564-070M
Trademarks of Great Plains Manufacturing, Inc. include: Singulator Plus, Swath Command, Terra-Tine.
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, Verti-Till, Whirlfilter, 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
iv FH6000HD Great Plains Manufacturing, Inc.
564-070M 04/28/2014
Great Plains Manufacturing, Inc. 1
A.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.
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.
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. Know the reporting
requirement for spills or releases of the chemicals you are
using. Have contact numbers available.
Be Familiar with Safety Decals
▲ Read and understand “Safety Decals” on page 5, thor-
oughly.
▲ Read all instructions noted on the decals.
▲ Keep decals clean. Replace damaged, faded and illegible
decals.
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2 FH6000HD Great Plains Manufacturing, Inc.
Use Safety Chains
▲ Use safety chains to help control drawn machinery should it
separate from tractor draw-bar or trailing nurse tank hitch.
▲ Use chain with a strength rating equal to or greater than
the gross weight of towed machinery.
▲ Attach implement chain to tractor draw-bar support or
specified anchor location. Allow only enough slack in chain
for turns.
▲ Replace chain if any links or end fittings are broken,
stretched or damaged.
▲ Do not use safety chain for towing.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury. This flex harrow requires a PowerBeyond port, which is always under pressure when the
tractor is running.
▲ Avoid the hazard by relieving pressure at other remotes, and
shutting down tractor before connecting, disconnecting or
inspecting 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, seek immediate medical assistance
from a physician familiar with this type of injury.
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 during operation.
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 driv-
ing on public roads.
▲ Use lights and devices provided with implement.
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Great Plains Manufacturing, Inc. A.Important Safety Information 3
Transport Machinery Safely
Maximum transport speed for implement is 20 mph (32
kph), 13 mph (22 kph) in turns. Some rough terrains
require a slower speed. Sudden braking can cause a
towed load to swerve and upset.
▲ Do not tow an implement or nurse tank that weighs more
than 1.5 times the weight of towing vehicle.
▲ Carry reflectors or flags to mark flex harrow in case of
breakdown on the road.
▲ Keep clear of overhead power lines and other obstructions
when transporting. Refer to transport dimensions under
“Specifications and Capacities” on page 32.
▲ 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.
▲ Reduce speed on rough roads.
▲ Comply with national, regional and local laws.
▲ Do not fold or unfold the flex harrow while the tractor is
moving.
Shutdown and Storage
▲ Lower flex harrow, put tractor in park, turn off engine, and
remove the key.
▲ Secure flex harrow using parking jack provided.
▲ Detach and store flex harrow in an area where children nor-
mally do not play.
Tire Safety
Tire changing can be dangerous. Employ 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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4 FH6000HD Great Plains Manufacturing, Inc.
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 implement, 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.
▲ Disconnect battery ground cable (-) before servicing or
adjusting electrical systems or before welding on flex harrow.
▲ 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 implement before
operation.
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 flex harrow functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave flex harrow unattended with tractor engine
running.
▲ Do not stand between tractor and implement, or implement
and nurse tank, during hitching.
▲ Keep hands, feet and clothing away from power-driven
parts.
▲ Wear snug-fitting clothing to avoid entanglement with mov-
ing parts.
▲ Watch out for wires, trees, etc., when folding and raising
flex harrow. Make sure all persons are clear of working
area.
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Great Plains Manufacturing, Inc. A.Important Safety Information 5
Safety Decals
Safety Reflectors and Decals
Your implement comes equipped with all lights, safety
reflectors and decals in place. They were designed to
help you safely operate your implement.
▲ Read and follow decal directions.
▲ Keep lights in operating condition.
▲ 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 cor-
responding 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.
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818-055C
Slow Moving Vehicle Reflector
On cross-bars at center of center wing;
1 total
838-614C
Red Reflectors
On rear of center wing (top) when folded up (both sides);
2 total
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6 FH6000HD Great Plains Manufacturing, Inc.
838-615C
Amber Reflectors
On outside face of wing end arm mounts, on outside of
outer arm of center and on outside of tongue, front, angle
tube (both sides);
6 total
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838-603C
Daytime (Orange) Reflectors
On rear of center wing (bottom) when folded up (both
sides);
2 total
838-599C Danger: Electrocution
On top face of tongue rear of manual pak (rear);
1 total
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Great Plains Manufacturing, Inc. A.Important Safety Information 7
838-600C Danger: Hitch Crush
On side face of tongue near hitch;
1 total
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848-705C Danger: Tip Over Hazard
On outside of wing end arm mount (both sides), on top
face of tongue front of manual pak (front);
3 total
818-337C Warning: Speed
On top face of tongue near hitch (rear);
1 total
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8 FH6000HD Great Plains Manufacturing, Inc.
838-094C Warning: High Pressure Fluid Hazard
One on top face of tongue in front of manual pak (middle), one on rear of hitch;
2 total
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838-602C Warning: Overhead Wing
On front (when unfolded) face of wing frame near wing
wheel (top and bottom of tube) (both sides);
4 total
818-398C Caution: Tires Not a Step
On outside face of wing end arm mount (both sides);
2 total
42318
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838-598C Caution: Read Operator’s Manual
On top face of tongue in front of manual pak (rear);
1 total
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Great Plains Manufacturing, Inc. A.Important Safety Information 9
NOTICE
TIP OVER HAZARD –
Do Not Attempt to Fold or Unfold
Machine Unless Securely Attached
to the Towing Tractor.
848-706C Notice: Tip Over Hazard
On top face of tongue near hitch (front);
1 total
848-706C
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10 FH6000HD Great Plains Manufacturing, Inc.
Introduction
Great Plains welcomes you to its growing family of new
product owners. The Flex Harrow (FH6000HD1 family)
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 FH6400HD, FH6600HD & FH6800HD Flex Harrow
is a heavy-duty flexible-link spike harrow. It is a pull-type
implement intended for towing directly behind a tractor,
or behind another implement. The outer sections fold up
and forward for narrow (12 ft 8 in) transport.
Models Covered
FH6424HD FH6000, 12-Bar, 24-Foot, Heavy-Duty
FH6630HD FH6000, 12-Bar, 30-Foot, Heavy-Duty
FH6636HD FH6000, 12-Bar, 36-Foot, Heavy-Duty
FH6642HD FH6000, 12-Bar, 42-Foot, Heavy-Duty
FH6845HD FH6000, 12-Bar, 45-Foot, Heavy-Duty
FH6848HD FH6000, 12-Bar, 48-Foot, Heavy-Duty
FH6851HD FH6000, 12-Bar, 41-Foot, Heavy-Duty
U
R
F
D
R
L
Figure 1
Flex Harrow
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.
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Intended Usage
Use the Flex Harrow to level soil, firm seedbeds, break
up and spread residue. Do not modify Great Plains-provisioned components, or install user-provisioned components, except as authorized or recommended by Great
Plains.
Document Family
564-070M MANUAL 6424-6845HD FLEX H
(this document)
584-070Q PART MAN 6424-6845HD FLEX H
584-070Q PRE-DELIV MAN 6424-6845HD FH
564-000M MANUAL, MARTENS HARROWS FF,
HD
1. The Great Plains FH6000HD product line is based on Model HD harrows previously offered by Martens Manufacturing, Fairview OK.
The present manual (564-070M) is intended for use with FH6000HD family harrows made by Great Plains. Owners of older (2010 and
earlier) Martens HD harrows may rely on their existing Martens manual. The final edition of that manual is available on the Great
Plains web site as Great Plains part number 564-000M. Great Plains provides continuing support for Martens HD harrows.
Definitions
The following terms are used throughout this manual.
A crucial point of information related to the preceding topic.
Read and follow the directions to remain safe, avoid serious
damage to equipment and ensure desired field results.
Note: Useful information related to the preceding topic.
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.
An orientation rose in some line art
illustrations shows the directions of:
Up, Back, Left, Down, Front, Right.
“(Option)” refers to components not part of the standard
product, and not “optional” steps.
R
F
U
B
L
D
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Great Plains Manufacturing, Inc. Introduction 11
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
Your machine’s parts were specially designed and
should only be replaced with Great Plains specified
parts. Always use the serial and model number when
ordering parts from your Great Plains dealer. The serialnumber plate is located on the top face of the tongue,
near the hitch.
Record your Flex Harrow 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.
Figure 2
Serial Number Plate
For further assistance write to:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
42319
785-823-3276
04/28/2014 564-070M
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