Page 1
GRAY
Predelivery Instructions
PFH-15 and PFH-20
Precision Fertilizer Hitch
Manufacturing, Inc.
www.greatplainsmfg.com
Read this 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!
© Copyright 2000 Printed
4/3/2003
18078
Cover illustration may show optional equipment not supplied with standard unit.
148-365Q
Page 2
Table of Contents
Table of Contents
Important Safety Information . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Description of Unit . . . . . . . . . . . . . . . . . . . . . . . . 4
Models Covered. . . . . . . . . . . . . . . . . . . . . . . 4
Intended Usage . . . . . . . . . . . . . . . . . . . . . . . 4
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . 4
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Assembly and Setup Assistance . . . . . . . . . . . . . 4
Section 1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pre-Assembly Checklist . . . . . . . . . . . . . . . . . . . . 5
Assemble Non-Fertilizer Unit . . . . . . . . . . . . . . . . 6
Assemble Fertilizer Unit . . . . . . . . . . . . . . . . . . . . 7
Section 2 Fertilizer Option Assembly . . . . . . . . . . 10
Pump Option . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing Pump . . . . . . . . . . . . . . . . . . . . . . 10
Installing Strainer. . . . . . . . . . . . . . . . . . . . . 11
Manifold Option . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installing Fertilizer Tines . . . . . . . . . . . . . . . . . . 14
Installing Fertilizer Arms. . . . . . . . . . . . . . . . . . . 15
Section 3 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Hooking Hitch to Tractor. . . . . . . . . . . . . . . . . . . 16
Bleeding Air from Hydraulics . . . . . . . . . . . . . . . 16
Bleeding Tongue Cylinder . . . . . . . . . . . . . . 16
Bleeding Transport Lift Cylinders . . . . . . . . . 16
Hooking Hitch to Drill . . . . . . . . . . . . . . . . . . . . . 17
Hooking Up Hydraulic Hoses . . . . . . . . . . . . . . . 18
Coulter Command Hookup . . . . . . . . . . . . . . . . 18
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Torque Values Chart for Common Bolt Sizes. . . 20
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . . 20
Great Plains Mfg., Inc.
© Copyright 2000 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.
The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains
All other brands and product names are trademarks or registered trademarks of their respective holders.
PFH-15 and PFH-20 Precision Fertilizer Hitch 148-365Q 2/20/2006
Great Plains Manufacturing, Incorporated Trademarks
Printed in the United States of America.
Page 3
Great Plains Mfg., Inc.
Important Safety Information
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. The signal words are:
!
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.
Keep Riders
Off Machinery
Riders obstruct the operator’s view.
Riders could be struck by foreign
objects or thrown from machine.
▲ Never allow riders on implement.
▲ Never allow children to operate
equipment.
For Your Protection
▲ Before assembling or operating
the implement, read thoroughly
and understand the Safety Decals
and “Operating Instructions”
sections in the operator’s manual.
Read all instructions noted on
decals.
OFF
Shutdown and Storage
▲ Lower machine to ground, put
tractor in park, turn off engine,
and remove key.
▲ Detach and store implement in an
area where children normally do
not play. Secure implement with
blocks and supports.
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Page 4
Important Safety Information
Great Plains Mfg., Inc.
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.
▲ Use flashing warning lights and
turn signals whenever driving on
public roads.
▲ Use lights and devices provided
with implement.
Transport
Machinery Safely
Maximum transport speed for implement is 20 mph. Some rough terrains
require a slower speed. Sudden
braking can cause a towed load to
swerve and upset.
▲ Do not exceed 20 mph. Never
travel at a speed which does not
allow adequate control of steering
and stopping. Reduce speed if
towed load is not equipped with
brakes.
▲ Comply with state and local laws.
▲ Do not tow an implement that,
when fully loaded, weighs more
than 1.5 times the weight of towing vehicle.
Use A Safety Chain
▲ Use a safety chain to help con-
trol drawn machinery should it
separate from tractor drawbar.
▲ Use a chain with a strength rat-
ing equal to or greater than the
gross weight of towed machinery.
▲ Attach chain to tractor drawbar
support or other specified
anchor location. Allow only
enough slack in chain to permit
turning.
▲ Replace chain if any links or end
fittings are broken, stretched or
damaged.
▲ Do not use safety
chain for towing.
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 to ground, put
tractor in park, turn off engine,
and remove key before performing
maintenance.
▲ Allow implement to cool completely.
▲ 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.
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Great Plains Mfg., Inc.
Important Safety Information
Prepare for Emergencies
▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extin-
guisher handy.
▲ Keep emergency numbers for
doctor, ambulance, hospital and
fire department near phone.
911
Wear
Protective Equipment
▲ Wear protective clothing and
equipment.
▲ Wear clothing and equipment
appropriate for the job. Avoid
loose-fitting clothing.
▲ Because prolonged exposure to
loud noise can cause hearing
impairment or hearing loss, wear
suitable hearing protection such
as earmuffs or earplugs.
▲ Because operating equipment
safely requires your full attention,
avoid wearing radio headphones
while operating machinery.
Avoid High
Pressure Fluids Hazard
Escaping fluid under pressure can
penetrate skin, causing serious
injury.
▲ Avoid the hazard by relieving
pressure before disconnecting
hydraulic lines.
▲ Use a piece of paper or card-
board, NOT BODY PARTS, to
check for suspected leaks.
▲ Wear protective gloves and safety
glasses or goggles when working
with hydraulic systems.
▲ If an accident occurs, see a doc-
tor immediately. Any fluid injected
into the skin must be surgically
removed within a few hours or
gangrene may result.
Safety at All Times
Thoroughly read and understand this
manual before operating implement.
Refer to Safety Decals, page 4. Read
all instructions noted on decals.
▲ Be familiar with all implement
functions.
▲ Operate implement from driver’s
seat only.
▲ Do not leave tractor or implement
unattended with engine running.
▲ Do not dismount a moving tractor.
Dismounting a moving tractor could
cause serious injury or death.
▲ Do not stand between the tractor
and implement during hitching.
▲ Keep hands, feet and clothing
away from power-driven parts.
▲ Wear snug-fitting clothing to avoid
entanglement with moving parts.
▲ Watch out for wires, trees, etc.,
when raising implement. Make
sure all persons are clear of working area.
▲ Do not turn tractor too tight, caus-
ing implement to ride up on
wheels.
Tire Safety
Tire changing can be dangerous and
should be performed by trained personnel using correct tools and equipment.
▲ When inflating tires, use a clip-on
chuck and extension hose long
enough to allow 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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Page 6
Introduction
Introduction
Great Plains Mfg., Inc.
Great Plains Manufacturing wants you to be satisfied with
any new machine delivered by the Great Plains Trucking
network. To ease the assembly task and produce a properly working machine, read this entire manual before assembling or setting up new equipment.
Description of Unit
The Precision Hitch is a pull-type tillage implement designed to tow a Great Plains three-point drill. No-till
coulters are mounted on the hitch. Each coulter is aligned
with a drill opener. The coulters till strips for the drill openers. The hitch has two hydraulic circuits: one for raising
and lowering the coulters and one for raising and lowering
the drill.
The hitch can be outfitted with fertilizer coulters, a drive
system, a piston pump and tanks for liquid-fertilizer application. With coulters set at various spacings, the hitch can
be used to apply fertilizer in the row below the seedbed at
rates from 4 to 80 gallons per acre. Total combined tank
capacity is 400 gallons.
Models Covered
PH-15 and PH-20 (standard model)
PFH-15, and PFH-20 (with fertilizer)
Intended Usage
Use this hitch to apply approved liquid fertilizer to production-agriculture crops. Use this hitch in conjunction with
Great Plains equipment only. Do not modify the hitch for
use with products or attachments other than those specified by Great Plains.
Definitions
The following terms are used throughout this manual.
Right and left as used in this manual are determined by
facing the direction the machine will travel while in use unless otherwise stated.
IMPORTANT: A crucial point of information about the
preceding topic. For safe and correct operation, read
and follow the directions provided before continuing.
NOTE: Useful information about the preceding topic.
Assembly and Setup Assistance
To order additional copies of predelivery instructions or
operator’s and parts manuals, write to the following address. Include model numbers in all correspondence.
If you do not understand any part of this manual or have
other assembly or setup questions, assistance is available. Contact
Product Support
Great Plains Mfg. Inc., Service Department
P.O. Box 5060
Salina, KS 67402-5060
Using This Manual
This manual was written to help you assemble and prepare the new machine for the customer. The manual includes instructions for assembly and setup. Read this
manual and follow the recommendations for safe, efficient
and proper assembly and setup.
An operator’s manual is also provided with the new machine. Read and understand “Important Safety Informa-
tion” and “Operating Instructions” in the operator’s
manual before assembling the machine. As a reference,
keep the operator’s manual on hand while assembling.
The information in this manual is current at printing. Some
parts may change to assure top performance.
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Great Plains Mfg., Inc.
Section 1 Assembly
Section 1 Assembly
The following headings are instructions for assembling the
hitch and its fertilizer options. Begin with Tools Required
and Pre-Assembly Checklist to make sure you have all
necessary parts and equipment, then proceed with assembly. Complete sections as required; skip sections for
options not purchased with hitch.
The hitch is shipped via flat bed truck. It is the dealer’s responsibility to unload the new machine. Unload all equipment before beginning assembly. Do not attempt any
assembly work while the hitch is on the truck.
Tools Required
Forklift or Hoist
•
• General Hand Tools
• Utility Knife
Pre-Assembly Checklist
1. Read and understand “Important Safety Informa-
tion” on page 1 before assembling.
2. Have at least two people on hand while assembling.
3. Make sure the assembly area is level and free of ob-
structions and overhead power lines (preferably an
open concrete area).
4. Have all major components.
5. Have all fasteners and pins shipped with the drill.
IMPORTANT: If a pre-assembled part or fastener is
temporarily removed, remember where it goes. Keep
the parts separated.
6. Have a copy of the parts manual on hand. If unsure of
proper placement or use of any part or fastener, refer
to the parts manual.
7. Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.
8. Check for proper tension and alignment on all drive
chains.
9. Check that all safety decals and reflectors are correct-
ly located and legible. Replace if improperly located or
damaged. Refer to Safety Decals, “Important Safety
Information” in the operator’s manual.
10. Inflate tires to recommended pressure as listed on the
Tire Inflation Chart on the “Appendix” on page 20.
Tighten wheel bolts as specified on Torque Values
Chart on the “Appendix” on page 20.
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Page 8
Section 1 Assembly
Assemble Non-Fertilizer Unit
Refer to Figure 1-1.
1. Remove transport tire, hub and spindle assemblies
that are banded to hitch. Slide spindles (1) into outer
spindle tubes (2). Secure spindles with 1/2-by-4 3/4inch bolts (3) and lock nuts (4).
2. Cut bands holding tongue and tongue cylinder to
hitch. Swing tongue (5) into position and pin cylinder
(6) onto cylinder lug on hitch. Swing tongue links (7)
into position and bolt links to ears (8) on frame.
3. Assemble spring hose loop (9) on nut welded near
front of tongue. Use 1/2-by-1-inch bolt, two flat washers and lock washer (10).
4. Hang coulter toolbars (11) under hitch on coulter toolbar support (12), using 5/8-by-6-inch bolts (13), flat
washers, lock washers and nuts. Position coulter toolbars so a gap between center coulters (14) is on center line of hitch.
Great Plains Mfg., Inc.
IMPORTANT: It is critical that the coulters are centered
under the hitch to ensure proper tracking with drill openers. Use extra care when assembling coulter toolbar to
hitch.
NOTE: The center of the coulter blade is about 1/4-inch to
the right of the coulter mount casting and coulter spring
bar.
5. Bolt weight rests (15) to weight brackets (16) using
5/8-by-2-inch bolts (17), flat washers, lock washers
and nuts. U-bolt weight brackets to frame (18) using ubolts (19) and nuts.
Figure 1-1
Non-Fertilizer Unit
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Great Plains Mfg., Inc.
Section 1 Assembly
Assemble Fertilizer Unit
1. Complete steps 1 through 4 on page 6, then refer to
Figure 1-2 and complete the following steps.
2. Using mechanical assistance, position tanks on hitch
frame (1) as shown.
3. Bolt tank mounts onto hitch frame on outside ends (2)
of hitch using 3/4-by-3 3/4-inch bolts, flat washers,
lock washers (3) and nuts.
4. Bolt tank mount onto hitch frame from front using 3/4by-1 1/4-inch bolts (4), lock washers and nuts.
5. On each tank, use three 5/8-inch u-bolts (5) to bolt
tanks to rear frame tube (6).
18055
2/20/2006
Figure 1-2
Install Tanks, Fertilizer Unit
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Section 1 Assembly
Great Plains Mfg., Inc.
6. Refer to Figure 1-3. Install a threaded adaptor (1) in
each tank outlet.
7. Connect a tank valve (2) to each tank adaptor. Tighten
the valves making sure the valves end up facing in the
opposite direction. Valves must be orientated as
shown.
8. Install a threaded/hose barb elbow (3) in each tank
valve. Tighten the elbows so each elbow is facing to
the center of the hitch and parallel to the bottom of the
tank.
9. Attach mounting plate (4) to the valve (2) on the left
tank and fasten plate to the slotted holes as shown.
10. Attach mounting plate (5) to the valve (2) on the right
tank and fasten plate to the slotted holes as shown.
11. Mount quick-fill valve with cam lock (6) onto mounting
plate on outside end of left tank. Install a threaded/
hose barb adaptor (8) into quick-fill valve.
12. Assemble three threaded/hose barb adaptors (8) onto
four-way cross (7). Install threaded/hose barb elbow
(3) into open outlet in four-way cross.
13. Use roll of 1 1/2-inch-diameter hose to connect valves
to four-way cross. Cut hose into four pieces with
lengths as listed on Figure 1-3.
a. Use 34-inch sections to connect 3/4-inch tank
valves to four-way cross.
b. Use 59-inch section to connect quick-fill valve to
four-way cross. Route hose through the hole in
the mounting plate (4).
c. Use 42-inch section to connect four-way cross to
manifold plumbing.
14. Install each hose over barbed fitting and lock in place
with a worm drive hose clamp.
NOTE: Use pipe sealant, Rectorseal 21 Blk Thread Sealant (Great Plains Part Number 890-310C), on all threaded
joints.
Figure 1-3
Install Tank Plumbing
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Great Plains Mfg., Inc.
Section 1 Assembly
15. Refer to Figure 1-4. U-bolt drive wheel to front coulter
toolbar under hitch tongue. Position drive wheel so inside edge of drive tire is 2 3/4 inches from hitch.
2/20/2006
Figure 1-4
Install Drive Wheel
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Section 2 Fertilizer Option Assembly
Section 2 Fertilizer Option Assembly
Great Plains Mfg., Inc.
Pump Option
Installing Pump
Refer to Figure 2-1.
1. Assemble pressure gauge and relief valve onto pump
as shown using these parts: 1-inch adaptor (1), fourway cross (2), 1-by-1/4-inch adaptor (3), gauge (4), 1inch threaded/hose barb adaptor (5), 1-by-3/4-inch
adaptor (6), relief valve (7), and 3/4-by-3/8-inch elbow
(8).
2. Push 3/8-inch hose (9) onto relief valve outlet.
3. Install 1 1/2-inch threaded/hose barb elbow (10) into
pump inlet.
4. Install 13-tooth sprocket (11) onto pump shaft.
5. Refer to Figure 2-2. U-bolt pump mount (1) to hitch
frame at location shown. Leave nuts on u-bolts loose
for later repositioning.
6. Secure pump (2) on
pump mount using
3/8-inch bolts, flat
washers, lock washers and nuts.
7. Positionpump mount
so pump sprocket (3)
is aligned with drive
wheel sprockets (4).
Tighten nuts on
pump-mount u-bolts.
8. Route chain (5) over
drive wheel and
pump sprockets.Use
idlers to remove
chain slack.
18155
Figure 2-1
Assemble Fittings on Pump
Figure 2-2
Assemble Pump on Hitch
NOTE: Use pipe sealant, Rectorseal 21 Blk Thread Sealant
(Great Plains Part Number
890-310C), on all threaded
joints.
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Great Plains Mfg., Inc.
Section 2 Fertilizer Option Assembly
Installing Strainer
Refer to Figure 2-3.
1. On left side of hitch tongue, clamp valve mount plates
(1) around front coulter toolbar using 5/16-inch bolts
(2), washers and nylock nuts.
2. Mount 1 1/2-inch valve (3) on valve mount plates.
3. Using 1 1/2-inch threaded adaptor (4), connect strainer (5) to 1 1/2-inch valve.
4. Install 1 1/2-inch elbow (6) in front of strainer.
5. Use hose (7) and worm clamps to connect strainer to
pump inlet. (Inlet is on the bottom side of the pump.)
6. Connect 1 1/2-inch valve to tanks using 1 1/2-inch
threaded/hose barb adaptor (8).
NOTE: Use pipe sealant, Rectorseal 21 Blk Thread Sealant (Great Plains Part Number 890-310C), on all threaded
joints.
2/20/2006
Figure 2-3
Assemble Strainer
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Section 2 Fertilizer Option Assembly
Great Plains Mfg., Inc.
Manifold Option
Refer to Figure 2-4.
1. From Figure 2-5 on the next page, determine combination of tubing sections needed for your manifold
based on hitch width and tine spacing. Connect sections with threaded tee fittings (1) or pipe couplers (2)
as indicated on Figure 2-5. Cap ends of tubing with
caps (3).
2. Install hangers (4) to the coulter bar with u-bolts.
Place hangers where necessary. Use at least one
hanger per tubing section.
3. Mount manifold on hangers. At each hanger, use a
bolt (5) and nut (6) to secure base of nozzle body (7)
to hanger. Assemble other half of nozzle body (8)
around manifold.
4. Install a nozzle body over all remaining holes in manifold.
5. In each nozzle body, install an orifice plate (9). Place a
nozzle cap (10) over nozzle body and turn cap clockwise to secure nozzle cap on nozzle body.
NOTE: On 8-, 10-, and 15-inch nozzle spacings, you must
plug some nozzles. Refer to chart to determine where to
install nozzle caps (11) instead of quick caps.
6. Install threaded/hose barb adaptors (12) in quick
caps.
7. Plumb manifold. Install an elbow (13) in tee fittings.
Cut 3/4-inch-diameter hose in half. Connect 3/4-inch
hose (14) to elbows on manifold and to hose barb tee
fitting (15). Use 1-inch-diameter hose (16) to connect
tee fitting to pump outlet fitting.
NOTE: Use pipe sealant, Rectorseal 21 Blk Thread Sealant (Great Plains Part Number 890-310C), on all threaded
joints.
Figure 2-4
Manifold Assembly
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Great Plains Mfg., Inc.
Section 2 Fertilizer Option Assembly
2/20/2006
Figure 2-5
Manifold and Nozzle Layout
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Section 2 Fertilizer Option Assembly
Great Plains Mfg., Inc.
Installing Fertilizer Tines
The fertilizer tine kit (GP part no. 204-242K) contains all
parts needed to convert one coulter into a fertilizer injection coulter.
To assemble one tine:
Refer to Figure 2-6.
1. Assemble front fertilizer arm (1) to coulter swing arm
(2) with two 1/2-by-2-inch flange bolts, flat washers
and flange nuts.
2. Fasten back fertilizer arm (3) to front fertilizer arm with
two 1/2-by-2-inch flange bolts, six flat washers and
two flange nuts. Tighten bolts.
3. Assemble coil tine (4) to back fertilizer arm using 1/2by- 4 1/2-inch bolt (5), spacer tube (6) spring clip (7),
two rectangular spacers (8), flat washer and flange
nut (9). Assemble spring clip between hooked end of
tine and first spring coil. Hook end of tine assembles in
one of top four holes of arm, depending on desired
coulter depth.
4. Adjust tine for proper fertilizer placement. Refer to
hitch operator’s manual for tine adjustment instructions.
5. Once tines are adjusted, assemble nozzle (10) to bottom of tine coupling with extension pipe (11) to top of
tine coupling. Screw 3/8-inch hose-barb fitting (12) to
top of extension pipe. Use pipe sealant provided in kit
on these pipe-thread connections.
Use roll of 3/8-inch hose from manifold kit to connect
each nozzle body to a fertilizer tine. For each nozzle
body, insert hose onto nozzle barb at manifold. Route
hose down to fertilizer tine, pulling hose straightbut not
taut. When satisfied with hose length, cut hose. Connect hose (13) to hose-barb fitting (12).
IMPORTANT: Do not cut hoses longer than 3 feet. You
will not have enough hose for all nozzles if hoses are
longer than 3 feet.
Figure 2-6
Assemble Fertilizer Tine
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Section 2 Fertilizer Option Assembly
Installing Fertilizer Arms
The fertilizer arm kit (GP part no. 164-140A) contains all
parts needed to convert one coulter into a fertilizer injection coulter.
To assemble one fertilizer arm:
Refer to Figure 2-7.
1. Assemble the fertilizer arm (1) to the coulter swing
arm (2) with two 1/2” x 1 3/4” bolts (3), 1/2” flat washers (4), 1/2” lock washers (5) and 1/2” nuts (6).
2. Slide the fertilizer arm (1) up or down to the desired
position and tighten hardware.
3. Install the solid stream nozzle (7) in the lower end of
the fertilizer arm (1) and tighten. Install the hose-barb
fitting (8) in the upper end of the fertilizer arm (1) and
tighten. Use pipe sealant on the pipe-thread connectios. Repeat above steps for remaing arms.
4. Use roll of 3/8” hose from manifold kit to connect each
nozzle body to a fertilizer arm (1). For each nozzle
body, insert hose onto nozzle barb at manifold. Route
hose down tofertilizer arm (1), pulling hose straight but
not taut. When satisfied with hose length, cut hose.
Connect hose to hose-barb fitting (8).
IMPORTANT: Do not cut hoses longer than 3 feet. You
will not have enough hose for all nozzles if hoses are
longer than 3 feet.
2/20/2006
Figure 2-7
Assemble Fertilizer Arm
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Section 3 Setup
Section 3 Setup
Great Plains Mfg., Inc.
This section covers hooking the hitch to the tractor and
drill, hooking the hydraulic hoses to the tractor, and bleeding the hitch hydraulics.
Hooking Hitch to Tractor
!
DANGER!
You may be severely injured or killed by being crushed between
the tractor and hitch. Do not stand or place any part of your
body between hitch and moving tractor. Stop tractor engine and
set park brake before installing the hitch pin.
1. Place hitch weldment (1) over ball swivel (2) on hitch
tongue. Hold hitch weldment in place by inserting
spacer tube (3) through hitch clevis and ball swivel.
2. Back tractor up to hitch and bolt hitch weldment to
tractor drawbar using 1-by-10-inch bolt (4), large flat
washer (5), lock washer (6), and nut (7).
3. Use 3/4-by-9-inch bolt (8) to bolt hitch weldment
through its slotted hole and onto secondary hole of
tractor drawbar. Install a 3/4-inch flat washer (9) next
to top slotted hole and fasten with a lock washer (10)
and nut (11). Tighten both bolts.
5. Remove jack from stob on side of hitch tongue and
place in transport position on frame brace. See Figure
3-2.
12083
Figure 3-2
Jack in Transport
Bleeding Air from Hydraulics
!
WARNING!
Escaping fluid under pressure can have sufficient force to penetrate the skin. Check all hydraulic lines and hoses before applying pressure. Fluid escaping from a very small hole can be
almost invisible. Use paper or cardboard, not body parts, to
check for suspected leaks. If injured, seek medical assistance
from a doctor that is familiar with this kind of injury. Foreign
fluids in the tissue must be surgically removed within a few
hours or gangrene will result.
17215
Figure 3-1
Drawbar Assembly Illustration
4. Securely attach safety chain to frame of tractor drawbar.
The hydraulics must be bled of air before hitch operation.
If the hydraulics are not bled, the cylinders will move with
jerky, uneven motions.
Bleeding Tongue Cylinder
1. Check hydraulic fluid in tractor reservoir and fill to
proper level. Add fluid to system as needed. Tongue
cylinder capacity is one-half gallon (1.89 liters).
2. Raise and safely support hitch, transport frame and
front tongue.
3. Unpin rod end of tongue cylinder. Block, wire or otherwise safely support cylinder so when rod end is fully
extended it does not contact anything.
4. Cycle cylinder completely in and out at least three
times to purge air from cylinder and hoses.
5. Fully extend cylinder and repin rod end.
6. Recheck tractor reservoir and fill to proper level.
Bleeding Transport Lift Cylinders
1. Check hydraulic fluid in tractor reservoir and fill to
proper level. Add fluid to system as needed. Cylinder
capacity is about 2 gallons (7.57 liters).
2. Jack up and support hitch frame.
3. Unpin rod ends of cylinders. Block, wire or otherwise
safely support cylinders so when rod ends are fully extended they do not contact anything.
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Great Plains Mfg., Inc.
Section 3 Setup
4. Cycle cylinders in and out completely at least three
times to purge air from cylinders and hoses.
5. Fully extend cylinders and repin rod ends.
6. Recheck tractor reservoir and fill to proper level.
Hooking Hitch to Drill
!
DANGER!
You may be severely injured or killed by being crushed between
the hitch and drill. Do not stand or place any part of your body
between the drill and moving hitch. Stop tractor engine and set
park brake before installing hitch pins.
1. Place hitch extension (1) between top hitch plates on
drill. Bolt hitch extension in place as shown in Figure
3-3 using two 1-by-5 1/2-inch bolts (2), lock washers
(3) and hex nuts (4).
18177
12085
Figure 3-3
Top Hitch Extension
2. Move transport-lock handle to field position. See Figure 3-4.
Figure 3-5
Hitch Links
4. Position hitch in front of drill so quick-hitch links on
hitch are in line with lower hitch pins on drill. Hydraulically retract transport-lift cylinders to position quickhitch links slightly lower than drill hitch pins.
5. Back hitch up to drill until hitch pins contact quick
hitch. Hydraulically raise hitch just until drill hitch pins
are secure inside quick-hitch links. Do not raise drill
any higher than necessary.
6. Visually confirm that the drill hitch pins have seated
and the quick hitch locks have snapped back out.
7. Attach slotted link bar (1) to top hitch extension on
drill. Use 1-by-3 3/4-inch pin (2) and bushing (3) to pin
level-link bar to drill. Secure pin with clip provided (4).
See Figure 3-6.
Figure 3-4
Transport-Lock Handle in Field Position
3. Position quick-hitch handles to locking position as
shown in Figure 3-5. This will allow drill hitch pins to
snap into quick-hitch links and secure drill to hitch.
2/20/2006
12330
12086
Figure 3-6
Top Hitch Link and Drill Extension
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Section 3 Setup
Hooking Up Hydraulic Hoses
Great Plains hydraulic hoses are color coded to help you
hookup hoses to your tractor outlets. Hoses that go to the
same remote valve are marked with the same color.
Color Hydraulic Function
Red Tongue Cylinder
Blue Transport Lift Cylinders
Orange Marker Cylinders
To distinguish hoses on the same hydraulic circuit, refer to
plastic hose holder. See Figure 3-7. Hose under extended-cylinder symbol feeds cylinder base ends. Hose under
retracted-cylinder symbol feeds cylinder rod ends.
Great Plains Mfg., Inc.
18047
Figure 3-8
Set Coulter Command Valve
NOTE: On tractors with open-center hydraulics, use poppet-style couplers on hydraulic hoses to reduce oil heating. See Figure 3-9.
17641
Figure 3-7
Hydraulic Hose Color Ties
NOTE: If your implement is equipped with the optional
Coulter Command system, refer to Coulter Command
Hookup, page 18, for instructions on hydraulic hookup.
1. Connect hydraulic hoses from tongue cylinder to one
set of tractor outlets.
2. Connect hoses from transport-lift cylinders to another
set of tractor outlets.
3. Connect hoses from optional markers to a third set of
tractor outlets.
Coulter Command Hookup
1. Adjust tractor flow-control valve so flow rate is between 8 and 12 gpm.
2. Set Coulter Command to open-center or closed-center mode, depending on your tractor hydraulics. If you
are not familiar with your tractor hydraulics, contact
your tractor dealer.
• Closed Center: Turn knob on Coulter Command
valve completely clockwise.
• Open Center: Turn knob on Coulter Command valve
completely counterclockwise.
18041
Figure 3-9
Poppet-Style Coupler for Open-Center Systems
3. Connect transport-lift hoses from valve on side of
hitch frame to one set of tractor outlets. If one of your
hydraulic circuits is designated priority, connect transport-lift hoses to this circuit.
4. Connect hoses from tongue-cylinder hoses from valve
on top of hitch frame to another set of tractor outlets.
Lock hydraulic lever for this circuit for continuous oil
flow.
John Deere tractors with Sound-Gard ® Body: Use
lever lock clip, John Deere part number R52667, to
lock lever forward. See your tractor dealer for clip purchase and installation.
John Deere 7000 Series tractors: Rotate valve
detent selector to motor position to lock lever in forward position.
John Deere 8000 Series tractors: Set timer to con-
tinuous. Push lever forward until detent clicks.
Case-IH Magnum tractors: Lock lever forward in
detent position. You may need to turn up detent pressure to its maximum setting. Do not tie hydraulic lever
past detent position with a strap. See your tractor
dealer for hydraulic-system details.
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Great Plains Mfg., Inc.
Section 3 Setup
Other tractors: Lock lever forward in detent position.
You may need to turn up detent pressure to maximum
or use a mechanical detent holder to hold lever forward. See your tractor dealer for proper means of providing constant flow to openers.
5. Connect hoses from marker cylinders to another set of
tractor outlets.
6. Connect power cord to an uninterrupted, 12-volt power source such as your tractor battery.
NOTE: To prevent circuit damage, connect the white wire
to the positive (+) battery terminal and the black wire to the
negative (-) battery terminal.
7. Connect control-box cable to back of control box.
Route cable out of tractor cab. Connect cable to hitch
wiring harness.See Figure 3-10.
2/20/2006
Figure 3-10
Coulter Command Control Box
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Appendix
Appendix
Torque Values Chart for Common Bolt Sizes
Great Plains Mfg., Inc.
Bolt Head Identification
Bolt Size
(Inches)
1
in-tpi
1/4" - 20 7.4 5.6 11 8 16 12 M 5 X 0.8 436597
1/4" - 28 8.5 6 13 10 18 14 M 6 X 1 7 5 11 8 15 11
5/16 - 18 15 11 24 17 33 25 M 8 X 1.25 17 12 26 19 36 27
5/16" - 24 17 13 26 19 37 27 M 8 X 1 18 13 28 21 39 29
3/8" - 16 27 20 42 31 59 44 M10 X 1.5 33 24 52 39 72 53
3/8" - 24 31 22 47 35 67 49 M10 X 0.75 39 29 61 45 85 62
7/16" - 14 43 32 67 49 95 70 M12 X 1.75 58 42 91 67 125 93
7/16" - 20 49 36 75 55 105 78 M12 X 1.5 60 44 95 70 130 97
1/2" - 13 66 49 105 76 145 105 M12 X 1 90 66 105 77 145 105
1/2" - 20 75 55 115 85 165 120 M14 X 2 92 68 145 105 200 150
9/16" - 12 95 70 150 110 210 155 M14 X 1.5 99 73 155 115 215 160
9/16" - 18 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230
5/8" - 11 130 97 205 150 285 210 M16 X 1.5 155 115 240 180 335 245
5/8" - 18 150 110 230 170 325 240 M18 X 2.5 195 145 310 230 405 300
3/4" - 10 235 170 360 265 510 375 M18 X 1.5 220 165 350 260 485 355
3/4" - 16 260 190 405 295 570 420 M20 X 2.5 280 205 440 325 610 450
7/8" - 9 225 165 585 430 820 605 M20 X 1.5 310 230 650 480 900 665
7/8" - 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780
1" - 8 340 250 875 645 1230 910 M24 X 2 525 390 830 610 1150 845
1" - 12 370 275 955 705 1350 995 M30 X 3.5 960 705 1510 1120 2100 1550
1-1/8" - 7 480 355 1080 795 1750 1290 M30 X 2 1060 785 1680 1240 2320 1710
1 1/8" - 12 540 395 1210 890 1960 1440 M36 X 3.5 1730 1270 2650 1950 3660 2700
1 1/4" - 7 680 500 1520 1120 2460 1820 M36 X 2 1880 1380 2960 2190 4100 3220
1 1/4" - 12 750 555 1680 1240 2730 2010
1 3/8" - 6 890 655 1990 1470 3230 2380
1 3/8" - 12 1010 745 2270 1670 3680 2710
1 1/2" - 6 1180 870 2640 1950 4290 3160
1 1/2" - 12 1330 980 2970 2190 4820 3560
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
Grade 2 Grade 5
N · m2ft-lb3N · m ft-lb N · m ft-lb mm x pitch4N · m ft-lb N · m ft-lb N · m ft-lb
Grade 8
Bolt Size
(Metric)
1
in-tpi = nominal thread dia.in inches-threads per inch
2
N· m = newton-meters
3
ft-lb= foot pounds
4
mm x pitch = nominal thread dia. in millimeters x thread pitch
Bolt Head Identification
5.8 8.8 10.9
Class 5.8 Class 8.8 Class 10.9
Tire Inflation Chart
Tire Size Inflation PSI Tire Size Inflation PSI
7.50 x 20" 4-Ply Drill Rib 28 11L x 15" 6-Ply Rib Implement 28
9.0 x 22.5 10-Ply Highway Service 70 70 11L x 15" 12-Ply Rib Implement 52
9.0 x 24" 8-Ply Rib Implement 40 12.5L x 15" 8-Ply Rib Implement 36
9.5L x 15" 6-Ply Rib Implement 32 12.5L x 15" 10-Ply Rib Implement 44
9.5L x 15" 8-Ply Rib Implement 44 16.5L x 16.1" 10-Ply Rib Implement 36
9.5L x 15" 12-Ply Rib Implement 60 21.5 x 16.1” SC 10-Ply Rib Implement 28
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Great Plains Manufacturing, Inc.
Corporate Office: P.O. Box 5060
Salina, Kansas 67402-5060 USA
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