Great Plains 7336 DH User Manual
Table of Contents Index
Pre-Delivery Manual
Series II 7323DH, 7326DH, 7329DH,
7330DH, 7333DH & 7336DH
Disk Harrow
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!
Illustrations may show optional equipment not supplied with standard unit.
43401
ORIGINAL INSTRUCTIONS
© Copyright 2014 Printed 2014-06-25 556-235Q
Table of Contents Index
EN
Table of Contents Index
Table of Contents Index
Great Plains Manufacturing, Inc. iii
Table of Contents
Important Safety Information ...................................... 1
Introduction ..................................................................4
Description of Unit ..........................................................4
Models Covered ............................................................. 4
Document Family ...........................................................4
Tools Required ...............................................................4
Pre-assembly Checklist..................................................4
Using This Manual..........................................................5
Definitions................................................................... 5
Shipping .........................................................................6
Unloading ....................................................................... 6
Unload Smaller Items First .........................................6
Unload Disk Harrow....................................................6
Unpacking Boxes .......................................................6
Assembly and Setup Assistance ................................6
Assembly ......................................................................7
Narrow Center Hub and Wheel Assembly.................. 7
Wide Center Frame Assembly....................................8
Center Frame Gang Assembly...................................9
Wing Hub and Wheel Assembly...............................10
Hitch and Lever Link Assembly ................................11
7329-7336 Wing Assembly.......................................12
Hydraulic Assembly..................................................13
Attach Hose Clamps and Hose wraps...................... 14
Hydraulic Hose Hookup............................................ 14
Hose Handles...........................................................14
Purging Hydraulic System ........................................15
Light Brackets and SMV Assembly ..........................16
Manual Gauge Wheel............................................... 17
Hydraulic Gauge Wheel............................................17
C-Shank Alignment-Disc Gang Assembly................18
Appendix - Reference Information............................19
Torque Values Chart .................................................... 19
Tire Inflation & Warranty...............................................20
Hydraulic Connectors and Torque................................21
Narrow Center Hydraulic Lift Layout ............................23
Wide Center Hydraulic Lift Layout ............................... 24
7323 Hydraulic Fold Layout ......................................... 25
7326-7336 Hydraulic Fold Layout ................................ 26
Hydraulic Level Layout 7323-7336 .............................. 27
7323DH Machine Layout ............................................. 28
7323DH Machine Layout ............................................. 29
7326DH Machine Layout ............................................. 30
7326DH Machine Layout ............................................. 31
7329DH Machine Layout ............................................. 32
7329DH Machine Layout ............................................. 33
7330DH Machine Layout ............................................. 34
7330DH Machine Layout ............................................. 35
7333DH Machine Layout ............................................. 36
7333DH Machine Layout ............................................. 37
7336DH Machine Layout ............................................. 38
7336DH Machine Layout ............................................. 39
7323DH 3 Bar Spike HR Drag Layout ........................ 40
7323DH 3 Bar Coil Tine Layout ................................... 41
7323DH Finishing Reel Layout .................................... 42
7326DH 3 Bar Spike HR Drag Layout ......................... 43
7326DH 3 Bar Coil Tine Layout ................................... 44
7326DH Finishing Reel Layout .................................... 45
7329DH 3 Bar Spike HR Drag Layout ......................... 46
7329DH 3 Bar Coil Tine Layout ................................... 47
7329DH Finishing Reel Layout .................................. 48
7330DH 3 Bar Spike HR Drag Layout ......................... 49
7330DH 3 Bar Coil Tine Layout ................................... 50
7330DH Finishing Reel Layout .................................... 51
7333DH 3 Bar Spike HR Drag Layout ......................... 52
7333DH 3 Bar Coil Tine Layout ................................... 53
7333DH Finishing Reel Layout .................................... 54
7336DH 3 Bar Spike HR Drag Layout ......................... 55
7336DH 3 Bar Coil Tine Layout ................................... 56
7336DH Finishing Reel Layout .................................... 57
Index........................................................................... 59
© Copyright 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.
2014-06-25 556-235Q
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 Series I 3323, 3326, 3329,
4330, 4333 & 4336 Great Plains Manufacturing, Inc.
556-235Q 2014-06-25
Great Plains Manufacturing, Inc. 1
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.
Use Adequate Lifting Means
The frame sections and gangs of this machine are
extremely heavy. If using multiple lifters, make sure each
is rated for at least its share of the load.
> 14,000
POUNDS
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.
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2 Series II Disk Harrow Great Plains Manufacturing, Inc.
Be Familiar with Safety Decals
▲ Read and understand the “Safety Decals” section of the
Operators Manual.
▲ Read all instructions noted on the decals.
▲ Keep decals clean. Replace damaged, faded and illegible
decals.
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 hear-
ing impairment or hearing loss, wear suitable hearing protection such as earmuffs or earplugs.
▲ Because operating equipment safely requires your full
attention, avoid wearing entertainment headphones while
operating machinery.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury.
▲ Avoid the hazard by relieving pressure before disconnecting
hydraulic lines.
▲ Use a piece of paper or cardboard, NOT BODY PARTS, to
check for suspected leaks.
▲ Wear protective gloves and safety glasses or goggles when
working with hydraulic systems.
▲ If an accident occurs, seek immediate medical assistance
from a physician familiar with this type of injury.
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
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.
556-235Q 2014-06-25
Great Plains Manufacturing, Inc. Important Safety Information 3
Shutdown and Storage
▲ Lower implement, put tractor in park, turn off engine, and
remove the key.
▲ Secure Disk Harrow using blocks and supports provided.
▲ Detach and store Disk Harrow in an area where children
normally do not play.
Tire Safety
Tire changing can be dangerous and should be performed by trained personnel using correct tools and
equipment.
▲ When inflating tires, use a clip-on chuck and extension hose
long enough for you to stand to one side–not in front of or
over tire assembly. Use a safety cage if available.
▲ When removing and installing wheels, use wheel-handling
equipment adequate for weight involved.
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 machine functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave machine unattended with tractor engine run-
ning.
▲ Do not stand between the tractor and machine 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
machine. Make sure all persons are clear of working area.
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4 Series II Disk Harrow Great Plains Manufacturing, Inc.
Introduction
The Disk Harrow has been designed with care and built
by skilled workers using quality materials. Proper setup,
maintenance, and safe operating practices will help the
customer get years of satisfactory use from the machine.
Description of Unit
The Series II Disk Harrow is a three section primary and
secondary tillage tool. Working width ranges from 23 to
36 feet. The implement is designed to cut out and bury
roots and crop residue, kill weeds and dry out the soil,
level ridges and ruts and for seedbed preparation. Various finishing attachments are also available to further
smooth, redistribute residue, kill weeds, and break clods
Models Covered
7323DH 23-Foot 3-section
7326DH 26-Foot 3-section
7329DH 29-Foot 3-section
7330DH 30-Foot 3-section
7333DH 33-Foot 3-section
7336DH 36-Foot 3-section
Figure 1
3326 Disk Harrow
43391
Document Family
556-235Q Pre-Delivery Manual (this document)
556-235M Operator Manual
556-235P Parts Manual
Tools Required
• Basic Hand Tools
• Torque Wrench
• Fork Truck, Overhead Hoist or Loader
Pre-assembly Checklist
1. Before assembling, read and understand “Important
Safety Information” in front part of this manual.
2. Have at least two people on hand while assembling.
3. Make sure area is level and free of obstructions
(preferably an open concrete area).
4. Have all major componets
5. Have all fasteners and pins shipped with machine.
556-235Q 2014-06-25
Great Plains Manufacturing, Inc. Introduction 5
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 and parts manual is also provided with the
new machine. Read and understand “Important Safety
Information” and “Operating Instructions” in the operator’s manual before assembling the machine. Refer to
the parts manual for proper part’s identification. As a reference, keep the operator’s and part’s manual on hand
while assembling.
The information in this manual is current at printing.
Some parts may change to assure top performance.
Definitions
The following terms are used throughout this manual.
R
F
U
B
L
D
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.
R
F
U
B
L
D
R
L
Figure 2
Right / Left
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6 Series II Disk Harrow Great Plains Manufacturing, Inc.
Shipping
The Disk Harrow will be shipped partially pre-assembled.
Refer to Figure 3
• The machine will be shipped with center frame and
wings stacked on stands and banded together.
• Finishing attachments (if equipped), will be shipped
with mounted brackets assembled and all bolts will be
in a box.
• Remove unit from shipping stands (if equipped), after
machine is lowered to ground and carefully un-band all
componets.
• The shipping stand bolts are not used in the assembly
of unit.
• The shipping stands do not need to be returned to
Great Plains.
Figure 3
Disk Harrow Shipping
43465
Unloading
Be sure the truck is on level ground, preferably concrete.
Centering componets:
Be sure and center fork truck or chains (overhead hoist) on componets
so they won’t slide and cause injury.
Unload Smaller Items First
Unloading the Disk Harrow is a potentially dangerous
operation.
Reduce risk and complications by first unloading
1. gangs and finishing attachments
2. misc. boxes
3. Disk Harrow
(described in the next section)
4. Place these components well out of the manoeu-
vring area needed for unloading the Disk Harrow.
Unload Disk Harrow
5. Double-check that all chains and tie-down straps
have been released and stowed.
6. Set parking brake on trailer tractor.
7. Slowly lift the Disk Harrow off trailer bed using two
fork lifts.
8. Stop lifting about 12” above the bed.
9. Have the truck driver slowly pull the trailer straight
out from under the Disk Harrow.
10. Making sure to keep level from front to back and side
to side, slowly lower the Disk Harrow.
11. Lower the Disk Harrow down until the machine is
about 12” off ground.
12. Remove shipping stands.
Unpacking Boxes
Note: Position boxes in area that you can maneuver
components up to machine to assembly.
13. Carefully remove banding from boxes.
14. Carefully remove banding from gangs and finishing
reels.
15. Locate and identify all componets before assembling.
Assembly and Setup Assistance
To order additional copies of pre-delivery 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
the assembly or setup questions, assistance is available.
Contact:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
(800)255-9215
556-235Q 2014-06-25
Great Plains Manufacturing, Inc. 7
Assembly
Narrow Center Hub and Wheel Assembly
Refer to Figure 4
Note: All bolts will be pre-installed on the unit in their
proper location. Bolts will need to be removed and
then re-installed during assembly. See “Parts
Manual” for complete break down of parts. For
7330-7336 models, skip to, See “Wide Center
Frame Assembly” on page 8.
1. Set pre-assembled center frame section on
stands that are tall enough to allow for installation
of the wheel hubs and tires as shown. See “Wide
Center Frame” on page 8, for Models 7330-7336.
2. Bolt on rear fold bracket with3⁄4” x 21⁄2” hex
bolts and secure with3⁄4” lock washers and3⁄4” nuts.
12
13 14
11
3. Remove1⁄2” x 41⁄2” Gr. 5 hex bolt from walking
beam. Slide the hub/spindle assembly into the walking beam and reinstall the hex bolt and secure with
1
⁄2” lock nut.
Note: The center uses 340/60R 16.5 tires while the
wings have 12.5Lx15 tires.
4. Install tire/wheel to hub assembly with
nuts .
18
5. Bolts may be tightened to specs, See “Torque Val-
ues Chart” on page 19.
16 17
15
5
⁄8” lug
11
15
14
17
13
R
F
12
U
B
L
D
18
16
Figure 4
Narrow Center Hub and Wheel
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43447
8 Series II Disk Harrow Great Plains Manufacturing, Inc.
Wide Center Frame Assembly
Refer to Figure 5
6. Lower the left and right sides of the center
frame onto stands .
7. Install the3⁄4” x 2” Gr. 8 hex bolts through the 4hole tie plates , secure with3⁄4” lock washers and
3
⁄4” nuts. Do not tighten at this time.
8. Pin the torque tube weldment to the center frames
with 11⁄4” x 9” pins (outer) and 11⁄4” x 7” pins
(center). Secure pins with
thread bolts and1⁄2” top lock nuts.
9. Remove1⁄2” x 41⁄2” Gr. 5 hex bolt from the walking beams. Slide the hub/spindle assembly into the
walking beam and reinstall the hex bolt and secure
with1⁄2” lock nut.
11 12
13
14
16 17
18
15
1
⁄2” x 25⁄8” Gr. 8 special
19
Note: The center uses 380/55R 16.5 tires while the
wings have 12.5Lx15 tires.
10. Install tire/wheel to hub assembly with5⁄8” lug
nuts .
22
11. Fasten center lift cylinders , base end to center
frame and rod end to torque tube with pins, machine
washers and cotter pins, provided. Be sure the
washer is installed between the cotter pin and the
cylinder.
12. Tighten all bolts to specs, See “Torque Values
Chart” on page 19.
20 21
23
U
15
R
B
14
11
14
13
17
18
16
19
21
20
12
23
F
L
D
22
Figure 5
Wide Center Frame
556-235Q 2014-06-25
43448
Great Plains Manufacturing, Inc. Assembly 9
Center Frame Gang Assembly
Refer to Figure 6
Note: The gang assemblies will be marked as to the
location on disk as “left, front, center”. This would
refer to the left, front gang on the center section.
You may also refer to the machine layout section
for placement. The gang assembly will be the
same on both the narrow and wide center.
1 3
13. Remove the 1” x 3” Gr. 8 hex bolts . Align holes in
plates of gang assemblies to center frame plates
2 3
, secure with 1” x 3” Gr. 8 hex bolts , 1” lock
washers and 1” nuts.
14. Bolts may be tightened to specs, See “Torque Val-
ues Chart” on page 19.
1
3
2
1
1
Figure 6
Wide Center Frame
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43448
10 Series II Disk Harrow Great Plains Manufacturing, Inc.
Wing Hub and Wheel Assembly
Refer to Figure 7
Note: Remove the assembly stands from center section
and allow unit to rest on the ground in the center of
work area.
15. Set pre-assembled wing frame section on stands
2
that are tall enough to allow for installation of the
pre-assembled gang bars.
1
16. Remove the
hub/spindle assembly to walking beam
assembly secure with the
secure with
Note: Install tire/wheel (12.5Lx15, tire/wheel assem-
bly) to hub assembly with
17. Bolts may be tightened to specs, See “Torque Val-
ues Chart” on page 19
⁄2” x 41⁄2” hex bolts and slide in the
3
5 4
1
⁄2” lock washers and1⁄2” nuts.
6
1
⁄2”x41⁄2” hex bolts ,
3 7
9
⁄16” lug nuts .
1
4
1
2
5
4
3
Figure 7
Wing Hub and Wheel
6
7
41617
556-235Q 2014-06-25
Great Plains Manufacturing, Inc. Assembly 11
Hitch and Lever Link Assembly
Note: The hitch to frame assembly will be the same on
both the narrow and wide models. Narrow shown.
Refer to Figure 8
18. Install hitch assembly to front of center frame with
the 11⁄4” x 8” Gr. 8 hex bolts provided. Be sure
and install 1
both sides, to insure a tight fit (be sure and have
same amount on both sides of hitch). Secure with
the 11⁄4” top lock nuts. Bolts need to be tightened
down securely on the ball joints but do not torque as
hitch needs to pivot freely.
19. Remove the tongue jack from its storage location
at rear of hitch and install it on the jack stub at the
front of the hitch frame to support the front side of
hitch.
1
⁄4” machine washers as needed on
11
12
13
14
20. Connect the bottom of leveling turnbuckle to rear
of hitch with 1
and 1 nylon lock nut, (do not torque bolt), connect
the top of the turnbuckle to the middle hole of leveler
assembly with the 11⁄4” x 11” hinge pin ,1⁄2” x
5
⁄8” Gr. 8 special thread hex bolt and1⁄2” top
2
lock nut.
21. Attach spring hose loop to front of hitch assembly
22. Bolts may be tightened to specs, See “Torque Val-
1
with
⁄2” x 11⁄2” hex bolts ,1⁄2” flat washers,1⁄2”
lock washers and1⁄2” nuts.
ues Chart” on page 19.
1
⁄4” x 6” Gr. 5 special thread bolt ,
17 18
19
20
21
15
16
U
R
B
17
18
F
L
D
20
21
11
12
14
19
16
15
12
13
Figure 8
Hitch to Frame Assembly
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43448
12 Series II Disk Harrow Great Plains Manufacturing, Inc.
7329-7336 Wing Assembly
Note: The wing assembly will be the same on both the
narrow and wide center. Model 7329DH shown.
Refer to Figure 9
23. With the center frame stands removed, the center
frame gangs should be resting on the floor.
24. Connect the wing gang bars to the center gang
bars using the hinge pins ,1⁄2”x21⁄2” pin spirol ,
1” flat washer, and 1” top lock nut.
25. Set the wing frame on the gang bars and attach
with 1” x 3” Gr. 8 hex bolts , 1” lock washer and 1”
nut.
4
1
2 3
5
Pins must be installed so the pin spirol is in the pin stop
as shown in inset picture .
Note: Do not hook up rod end of fold cylinder until sys-
tem is purged of air. See “Purging Hydraulic
System” on page 15.
26. Install the 8-bolt hub and spindle assembly (if not
already), to the wing walking beam with
Gr. 8 hex bolt and
and Wheel Assembly” on page 10
27. Tighten all bolts to specs, See “Torque Values
Chart” on page 19.
28. Repeat the same procedure for the other wing.
6
1
1
⁄2” top lock nut, See “Wing Hub
⁄2” x 41⁄2”
3
5
2
1
2
4
1
6
Figure 9
7323-7336 Wing
556-235Q 2014-06-25
43453
43460
Great Plains Manufacturing, Inc. Assembly 13
Hydraulic Assembly
Note: Models 7323-7329 hydraulic hoses should already
be routed and installed thru the hose clamps before
delivery.
Refer to Figure 10
29. Route the tractor end of the hydraulic hoses thru
the spring hose loop and store in the hose storage
bracket located on the side of the hitch. Approximately 3’ of hose should extend past the hitch point.
Attach hose wraps on hoses to prevent hoses from
dragging or getting pinched. Connect the female
ends of the hydraulic hoses to the bulkhead fittings
3
Note: The bottom set of fittings are for the lift hydraulics,
30. See “Attach Hose Clamps and Hose wraps” on
page 14 for proper assembly.
2
located on the front of the center section.
the middle fittings are for the fold hydraulics and the
top fittings are for the level hydraulics. There is an
empty set of spaces for auxiliary fittings. (See inset
picture)
1
3
1
2
2
Refer to Figure 11
31. Connect the hoses from the center section to the
bulkhead fittings located in a bracket on the side
of the wings frame. Connect hoses to the hydraulic
gauge wheel cylinder is equiped.
32. When all hoses are connected, check that all fittings
are tight. You are ready to charge the hydraulic system.
4
5
Figure 10
Hydraulic Routing
4
Figure 11
Center to Wing Hose Routing
5
43459
43455
43459
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14 Series II Disk Harrow Great Plains Manufacturing, Inc.
u
e
.
Refer to Figure 12
Attach Hose Clamps and Hose wraps
33. Make sure all Stauff Clamps are tight and that hoses
are routed correctly. If not install hose clamps on
hoses as shown.
34. Install hose wraps on hoses as needed.
Note: Be sure and get hoses and light wiring harness fas-
tened properly so they do not drag. Check to be
sure there is enough slack in hinge area when folding machine the first time.
Hydraulic Hose Hookup
35. 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
Black Lift (2 hoses)
Green Fold (2 hoses)
Red Hydraulic Level (2 hoses)
Yellow Auxiliary (Optional 2 Hoses)
Refer to Figure 13
Hose Handles
36. To distinguish hoses on the same hydraulic circuit, refer
to hose handles. The hose under an extended-cylinder
symbol feeds a cylinder base end. The hose under a
retracted-cylinder symbol feeds a cylinder rod end.
37. Once all hoses are tightened, hook hoses to tractor
Figure 12
Hose Clamp Assembly
High Pressure Fluid Hazard:
Relieve pressure before disconnecting hydraulic lines. Use
paper or cardboard, NOT BODY PARTS, to check for leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems. Escaping fluid under press
can have sufficient pressure to penetrate the skin causing s
ous injury. If an accident occurs, seek immediate medical
assistance from a physician familiar with this type of injury
Only trained personnel should work on system hydraulics.
43454
556-235Q 2014-06-25
Figure 13
Hose Handles
41552
Great Plains Manufacturing, Inc. Assembly 15
Purging Hydraulic System
Refer to Figure 14
38. Charge the lift system first, this includes the hydraulics for the gauge wheel if equiped. Extend the lift
cylinders (black handles) until the center section is
fully raised. Place a block under the gauge wheel
cylinder to allow it to move freely. Hold lever back so
the lift cylinders will be filled with oil. Remove the cylinder transport locks and store on frame plate .
Raise and lower the gang system several times to
purge air from system. Watch for leaks and retighten
fittings if necessary.
39. You may now charge the fold system. Before charging the fold cylinders , make sure the rod end of the
cylinders are un-bolted or un-pinned and a block is
under the cylinders as shown, so that when the rod
is extended, it will clear the wing fold brackets.
Extend the fold cylinders (green handles) com-
1
5
2 3
4
5
4
pletely and then close them. Extend and retract the
cylinders several times to purge air from the system.
Now the cylinders may be extended far enough to be
connected to the wing fold brackets.
40. The fold cylinders may now be connected to the wing
fold brackets. Use the 1” x 5.38” snap ring pin , 1”
washers, and 1” heavy snap rings provided.
41. Charge the hydraulic leveling cylinder at this time
(red handles). Extend and retract this cylinder several times also.
42. The unit may now be folded. Once unit is raised
completely, slowly fold the machine, watching that
hoses do not get pinched, etc.... Once machine is
fully folded, install the transport locks. Now the unit is
in transport mode.
6
3
2
1
4
5
6
Figure 14
Hydraulic Purging
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16 Series II Disk Harrow Great Plains Manufacturing, Inc.
Light Brackets and SMV Assembly
Refer to Figure 15
43. Install the amber light bracket assemblies to rear
gang bars with the u-bolts provided with brackets.
Position the amber light brackets between the
gang bar mounting plate and the c-shank mounting
plate. The placement may need small adjustments to
avoid the tires during field operation and the wings
while folding and unfolding.
44. Attach red lights and the SMV sign on the wing
stops with the bolts, lock washers and the nuts provide in the locations shown.
2 3
1
1
45. Connect the wiring harness leads marked right and
left, red and amber to the appropriate side of the
machine for turn signals to be correct. For the amber
lights, thread the wires through the light bracket tubing before connecting to the lights. For the red lights
run wires long sides of the wing stops and secure
with zip ties.
46. Tighten all bolts to specs, See “Torque Values
Chart” on page 19.
1
3
2
1
Figure 15
Narrow Center Lights
43462
556-235Q 2014-06-25
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