GREAT PLAINS Turbo Max 3500TM User manual

Manufacturing, Inc.
www.greatplainsmfg.com
© Copyright 2019 Printed 2019-05-07 586-537Q
EN
Table of Contents Index
Table of Contents Index
ORIGINAL INSTRUCTIONS
Pre-Delivery Manual
Turbo Max (S/N C2411H+)
3500TM & 4000TM
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.
43054

Table of Contents Index
Table of Contents Index

3500-4000TM Cover Index iii
05/07/2019 Cover Index 586-537Q
© Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 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
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 Turbo Max......................................................7
Unpacking Boxes .......................................................7
Further Assistance .....................................................7
Assembly.................................................................................8
Center Brace Bar........................................................8
Valve Brackets & Valves ............................................8
Valve Brackets & Hoses.............................................9
Hitch Assembly...........................................................9
Hose Routing Hitch ..................................................10
Center Fold & H-Bracket ..........................................11
Inside Wing, Brace Bar & Fold .................................12
Wing & Brace Bar.....................................................13
Front Gang Assembly...............................................13
Attach Hose Clamps and Hose Wraps.....................15
Hydraulic Hose Hookup............................................15
Hose Handles...........................................................15
Purging Hydraulic System ........................................16
Depth Stop & Angle Gauge......................................17
Front Lights & SMV ..................................................18
Rear Lights...............................................................18
3500 Wing Fold Assist..............................................19
Proximity Sensor Adjustment ...................................20
Install Decals............................................................21
Rolling Harrow (optional)..........................................22
Reel Following Rolling Harrow (optional) .................23
Hydraulic Reel Down Pressure Kit ...........................24
Hydraulic Reel Attachment ..............................................25
Install Rear Hitch (optional) .............................................26
Extended Rear Hitch ................................................26
A-Frame Hitch ..........................................................26
Rear Stand ...............................................................27
Weight Package Assembly (Optional)......................27
Appendix - Reference Information ......................................29
Torque Values Chart .......................................................29
Tire Inflation Chart...........................................................30
Hydraulic Connectors and Torque...................................30
........................................................................................31
3500TM Hydraulic Lift Layout (S/N GP-C6545H+)..........32
3500TM Hydraulic Lift Layout (S/N GP-C6545H+)..........33
3500TM Hydraulic Lift Layout (S/N GP-C6544H-) ..........34
3500TM Hydraulic Lift Layout (S/N GP-C6544H-) ..........35
4000TM Hydraulic Lift Layout (S/N GP-C6545H+)..........36
4000TM Hydraulic Lift Layout (S/N GP-C6545H+)..........37
4000TM Hydraulic Lift Layout (S/N GPC6544H-)............38
4000TM Hydraulic Lift Layout (S/N GP-C6544H-) ..........39
3500TM Hydraulic Fold Layout (S/N GP-C6545H+) .......40
3500TM Hydraulic Fold Layout (S/N GP-C6544H-) ........41
4000TM Hydraulic Fold Layout (S/N GP-C6545H+) .......42
4000TM Hydraulic Fold Layout (S/N GP-C6545H+) .......43
4000TM Hydraulic Fold Layout (S/N GP-C6544H-) ........44
4000TM Hydraulic Fold Layout (S/N GP-C6544H-) ........45
3500TM Hydraulic Gang Angle Layout (S/N GP-C6545H+)
46
3500TM Hydraulic Gang Angle Layout (S/N GP-C6545H+)
47
33500TM Hydraulic Gang Angle Layout (S/N GP-C6544H-
) .......................................................................................48
3500TM Hydraulic Gang Angle Layout (S/N GP-C6544H-)
49
4000TM Hydraulic Gang Angle Layout (S/N GP-C6545H+)
50
4000TM Hydraulic Gang Angle Layout S/N GP-C6545H+).
51
4000TM Hydraulic Gang Angle Layout (S/N GP-C6544H-)
52
4000TM Hydraulic Gang Angle Layout (S/NGP-C6544H-) .
53
3500TM Machine Layout.................................................54
3500TM Machine Layout.................................................55
4000TM Machine Layout.................................................56
4000TM Machine Layout.................................................57
3500TM Rolling Harrow Layout.......................................58
3500TM Rolling Harrow Layout.......................................59
3500TM Heavy Reel Following Rolling Harrow Layout ...60
3500TM Heavy Reel Following Rolling Harrow Layout ...61
4000TM Rolling Harrow Layout.......................................62
4000TM Rolling Harrow Layout.......................................63
4000TM Heavy Reel Following Rolling Harrow Layout ...64

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3500-4000TM Table of Contents Index iv
4000TM Heavy Reel Following Rolling Harrow Layout ...65
3500TM Hydraulic Reel Layout .......................................66
3500TM Hydraulic Reel Layout .......................................67
4000TM Hydraulic Reel Layout .......................................68
4000TM Hydraulic Reel Layout .......................................69

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3500-4000TM Table of Contents Index 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.
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.
> 14,000
POUNDS

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3500-4000TM Table of Contents Index Important Safety Information 2
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
hearing 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
driving 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.
Shutdown and Storage
Lower implement, put tractor in park, turn off engine, and
remove the key.
Secure Turbo Max using blocks and supports provided.
Detach and store Turbo Max in an area where children
normally do not play.

3500-4000TM Table of Contents Index Important Safety Information 3
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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
running.
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
moving 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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3500-4000TM Table of Contents Index 4
Introduction
The Turbo Max 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 3500-4000TM Turbo Max is a three or five section
“vertical” tillage tool. Working width ranges from 35 to 40
feet. The implement is designed to cut and size residue,
till soil for faster seedbed warming, break up soil crust on
hard dried fields while eliminating compaction layers.
The front and rear gangs may be adjusted from 0-6
degree angle, depending on the aggressiveness desired.
Various finishing attachments are also available to
further smooth, redistribute residue, kill weeds, and
break clods
Models Covered
Document Family
Tools Required
•Basic Hand Tools
•Torque Wrench
•Fork Truck, Overhead Hoist or Loader
Pre-assembly Checklist
Before assembling, read and understand “Important
Safety Information” in front part of this manual.
Have at least two people on hand while assembling.
Make sure area is level and free of obstructions
(preferably an open concrete area).
Have all major components
Have all fasteners and pins shipped with machine.
3500TM 35’ (7.5in) spacing
4000TM 40’ (7.5in) spacing
586-537Q-ENG Assembly Manual
586-537Q Pre-Delivery Manual (this document)
586-537M Operator Manual
586-537P Parts Manual
Figure 1
3500 Turbo Max
43102

3500-4000TM Table of Contents Index Introduction 5
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Using This Manual
This manual was written to help you assemble and pre-
pare the new machine for the customer. The manual
includes instructions for assembly and setup. Read this
manual and follow the recommendations for safe, effi-
cient 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 oper-
ator’s manual before assembling the machine. Refer to
the parts manual for proper part’s identification. As a ref-
erence, 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.
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.
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.
L
R
Figure 2
Right / Left
43102
U
D
F
B
L
R

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3500-4000TM Table of Contents Index Introduction 6
Shipping
The Turbo Max will be shipped partially pre-assembled.
Refer to Figure 3
• The center frames will be shipped partially pre-
assembled. The wings will be shipped un-attached,
stacked together.
•The front gangs will be fully assembled but not
assembled to machine.
Refer to Figure 4
•The attachment frames (if equipped) will be stacked
on pallets and banded together.
•Finishing attachments (if equipped), will be will be
shipped with mounted brackets assembled, reel
assemblies 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 components.
•The shipping stands do not need to be returned to
Great Plains.
Unloading
Be sure the truck is on level ground, preferably concrete.
Centering components:
Be sure and center fork truck or chains (overhead hoist) on
components so they won’t slide and cause injury.
Unload Smaller Items First
Unloading the Turbo Max is a potentially dangerous
operation.
1. Reduce risk and complications by first unloading
2. the gangs and finishing attachments
3. the misc. boxes
4. Place these components well out of the maneuvering
area needed for unloading the Turbo Max.
5. the Turbo Max (described in the next section)
Figure 3
Shipping
42443
Figure 4
Hitch, Brace Bar & Attachments
42426

3500-4000TM Table of Contents Index Introduction 7
05/07/2019 Table of Contents Index 586-537Q
Unload Turbo Max
6. The center brace bar, front trusses and hitch
assembly may be attached to center section on
trailer. If heavy fork lift is not available to unload
machine, See “Assembly” on page 8 to install
components needed to pull off side of trailer.
7. If heavy fork lift or two fork lifts are available the
machine may be lifted off the truck before
assembling rest of machine. Double-check that all
chains and tie-down straps have been released
and stowed.
8. Set parking brake on tractor and trailer.
9. Slowly lift the Turbo Max off trailer bed using two
fork lifts.
10. Stop lifting about 12” above the bed.
11. Have the truck driver slowly pull the trailer straight
out from under the Turbo Max.
12. Making sure to keep level from front to back and
side to side, slowly lower the Turbo Max.
13. Slowly lower Turbo Max until it is resting on the
coulter gangs.
Unpacking Boxes
Position boxes in area that you can maneuver
components up to machine to assembly.
14. Carefully remove banding from boxes.
15. Carefully remove banding from brace bars and
finishing reels.
16. Locate and identify all components before
assembling.
Further Assistance
Great Plains Manufacturing, Inc. wants you to be
satisfied with your new Turbo Max. If for any reason you
do not understand any part of this manual or are
otherwise dissatisfies with the product please contact:
Great Plains Service Department
1525 E. North St.
PO Box 5060
Salina, KS 67402-5060
Or go to www.greatplainsag.com and follow the contact
information at the bottom of your screen for our service
department.

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3500-4000TM Table of Contents Index 8
Assembly
Center Brace Bar
Refer to Figure 5
The center brace bar, level bar and hitch may need to
be installed on truck if the machine is to be pulled off
side of truck. The bolt kit needed for assembling the
rest of machine will be shipped in a bag tied to front of
center frame. The center will be shipped partially pre-
assembled. See “Parts Manual” for part numbers and
description of parts.
17. Align holes in plates of the center brace bar with
holes on front of center frame , secure with 34 x 2
hex bolts , 34 lock washers and 34 nuts.
18. Bolts may be tightened to specs, See “Torque
Values Chart” on page 29.
Valve Brackets & Valves
Refer to Figure 6
The valves and brackets should be installed in the
correct locations on your machine. If for some reason
they are not follow the steps below to install.
19. Use 1732 x4
12 Gr. 5 hex bolt , 1732 lock nuts and
washers to secure the bypass valve to the by pass
valve bracket .
20. The bypass valve bracket is attached to the center
frame using 38x1
14 hex bolts , 38 lock washers
and hex nuts.
21. The lock valve is attached to a mounting plate that
is welded to the frame. Use 14x 2 Gr. 5 hex bolts
to secure to the frame.
22. Depth control valve is secured to the frame using
1732 x 2 hex bolts and 1732 lock washers.
23. Be sure hoses are routed as shown in, See “Valve
Brackets & Hoses” on page 9.
Bolts may be tightened to specs, See “Torque Values
Chart” on page 29
3
1
2
Figure 5
Center Brace Bar
TP-69104
1
2
3
3
2
8
6
5
1
4
7
Figure 6
Valve Brackets & Valves
TP-69107
3
1
2
2
4
5
6
7
8

3500-4000TM Table of Contents Index Assembly 9
05/07/2019 Table of Contents Index 586-537Q
Valve Brackets & Hoses
Refer to Figure 7
The hoses will be shipped hooked up to valves and
cylinders. The front valves and hoses (that will need
routed through front brace bar, trusses and up hitch to
tractor) will be rolled up and tied to front of center
frame during shipping. The bypass and lock valves
will need mounted in proper location as shown and
hoses routed correctly before front trusses and
hitch are installed so front weight kits may be installed
or removed without taking hoses or valves loose. The
hoses need to route in locations shown with arrows,
on top of wing brace to outside of tubes then back
to inside. Install front trusses on top of hoses as
shown. Set them 11116” (bypass valve bracket) and 3”
(lock valve bracket) from truss plates as shown. See
“Valve Brackets & Valves” on page 8 for proper
mounting instructions.
Hitch Assembly
Refer to Figure 8
24. Remove the 114 x 8 Gr. 8 bolts from the rear of
hitch assembly . Bolt the hitch assembly to
center frame with the 114 x 8 Gr. 8 bolts , 114 flat
washer (one side of uniball to take up space) and
114 top lock nuts. Tighten bolts snug, do not torque,
as the hitch must pivot freely.
25. Install jack on front outside of hitch to support the
front of hitch for the rest of assembly.
26. Remove 114 x 812 Gr. 8 special thread bolt from
front short level bar tube . Align holes in rear of
level bar tube and center hole of h-bracket .
Install the 114 x 812 Gr. 8 special thread bolt from
the left side and secure with 114 top lock nut.
27. Bolt the spring hose holder to welded nut on front
of hitch with 12 x 1 Gr. 5 bolt , 12 flat washer and
lock washer.
28. The front of the level turnbuckle may need
attached to ears on hitch assembly with 1 x 6 hex
bolt and 1 top lock nut
29. Bolts may be tightened to specs, See “Torque
Values Chart” on page 29.
4
1
2
3
Figure 7
Valve Brackets & Hoses
TP-69120
1
2
3
4
3
2
5
7
3
U
D
F
B
L
R
3
10
9
8
4
11 1
6
Figure 8
Hitch
42388
2
1
1
2
3
4
1
5
6
6
7
5
8
9
10
1
11

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3500-4000TM Table of Contents Index Assembly 10
Hose Routing Hitch
Refer to Figure 9
30. Route hydraulic hoses from valves , on center
brace bar, under manual pak bracket , under front
of hitch turnbuckle along all hose clamp blocks
and through spring hose holder loop to front of
hitch as shown. Secure hoses with hose clamps
, 516 hex bolts and 516 lock washers.
31. The light Harness will need routed with hydraulic
hoses along hitch. Be sure all bolts are tight.
Refer to Figure 10
32. If your machine is equipped with the hydraulic hitch
option, the hoses will be already attached to the
cylinder on the hitch and the lock valve and routed
to the back of the hitch. It will need to be attached
to the center frame brace bar the same way as the
turnbuckle hitch option.
5
6
7
1
4
3
2
2
Figure 9
Hose Routing Hitch
42945
1
2
3
4
5
6
7
Figure 10
Hydraulic Hitch Adjustment
43968

3500-4000TM Table of Contents Index Assembly 11
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Center Fold & H-Bracket
Refer to Figure 11
33. Attach level bar with 1 x 912 pin . Align hole in pin and holes in collars on outside of torque tube ears, install
38 x 214 Gr. 8 hex bolts and 38 nylock lock nuts.
34. Attach rear plate of spring rod assembly to front plate of level bar with 34 x 212 Gr. 8 hex bolts , 34 lock
washers and nuts.
35. Align bottom of h-bracket assembly with ears on front of center brace bar, secure with 1 x 314 usable pins ,
1.5 x 1.0 x.075 machine washers and 316 x 2 cotter pin.
36. Attach center wing stops to center brace bar plates with 58 x 112 hex bolts , 58 lock washers and nuts.
37. Attach rear wing stop to center frame with 58 x 3132 x 5 1/2 u-bolts , 58 lock washers and nuts.
38. Install the fold front and rear fold brackets to the center frame using 34x 2 hex bolts , 34 lock washers and
hex nuts.
39. Attach the base end of the four fold cylinders to the fold brackets with the 1 x 318 pins, 1.5 x 1.00 x.075
machine washer and 316 x 2 cotter pin.
40. Do not hook up rod end of fold cylinders until system is purged of air. See “Purging Hydraulic System” on
page 16.
41. Bolts may be tightened to specs, See “Torque Values Chart” on page 29.
1
2
3
4
1
5
6
7
8
9
10
11
12
13
14
15
15
11
U
D
F
B
L
R
23
12
10
15
6
17
13
9
9
7
13
4
1
5
8
14
Figure 11
Center Fold & H-Bracket TP-69124

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3500-4000TM Table of Contents Index Assembly 12
Inside Wing, Brace Bar & Fold
Refer to Figure 12
42. Attach wing brace to front of wing frame
assemblies with 34 x 2 hex bolts and 34 x 7 hex
bolts (inside plates, bottom holes) and (outside
plate, bottom outside hole, model 4000 only), 34 lock
washers and 34 nuts.
43. Attach wing frame assemblies to center frame
with the wing hinge pins , 114 flat washers (rear
side of wing hinge tubes only, do not use on wing
brace bar) and 1 lock nuts.
44. Attach front and rear wing stops to plates on
wing frame assemblies with 58 x 112 hex bolts ,
58 lock washers and 58 nuts.
45. On models 4000, attach base end of fold cylinders
to wing frame assemblies with 1 x 318 pins ,
1.5 x 1.00 x.075 machine washer and 316 x 2
cotter pin.
46. Do not hook up rod end of fold cylinders until
system is purged of air. See “Purging Hydraulic
System” on page 16.
47. Bolt may be tightened to specs, See “Torque Values
Chart” on page 29.
1
4
2
3
4
5
6
7
8
9
4
10
11
4
12
13
11
9
10
7
8
13
12
2
3
6
3
11
10
4
Figure 12
Inside Wing, Brace Bar & Fold 42870
U
D
F
B
L
R
1
5

3500-4000TM Table of Contents Index Assembly 13
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Wing & Brace Bar
Refer to Figure 13
48. Attach wing brace to front of wing frame with
34x 2 Gr. 5 hex bolts , 34 lock washers and nuts.
49. Remove wing hinge pins from center frame hinge
. Attach wing frame assemblies to center frame
with the wing hinge pins , 114 flat washers
(rear side of wing hinge tubes only, do not use on
wing brace bar) and 1 top lock nuts.
50. Do not hook up rod end of fold cylinder until
system is purged of air. See “Purging Hydraulic
System” on page 16.
51. Bolt may be tightened to specs, See “Torque Values
Chart” on page 29.
Front Gang Assembly
The center and wing gang assemblies will install the
same. The only difference is, that the gang
assemblies and turnbuckles will be different from
center to wings. Cylinder base end will be hooked to
ear on center and wing frames. See machine layouts
in appendix section for proper gang locations. See
wing gang bar & fold assembly 3500-4000 for
complete parts breakdown. You will probably need to
hook all hydraulics up, See “3500TM Hydraulic
Gang Angle Layout (S/N GP-C6545H+)” on
page 46 through See “4000TM Hydraulic Gang
Angle Layout S/N GP-C6545H+)” on page 51 and
charge systems before installing gang assemblies,
See “Purging Hydraulic System” on page 16.
6
2
1
4
6
7
3
U
D
F
B
L
R
5
Figure 13
Outside Wing & Brace Bar
42390
1
2
4
5
3
5
4
6
7

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3500-4000TM Table of Contents Index Assembly 14
Refer to Figure 14
52. Position gang assemblies in correct location on floor or ground and carefully lower machine down to gang
assemblies.
53. Install the gang pivot bolt through aligned tubes on gang bars and brace bars. Secure with 114flat washers
(one on top and one on bottom), 114 slotted nut (one on top and one on bottom) and two 316 x 2 cotter pins .
Tighten bolts snug, torque to 350 to 400ft-b. Cotter pins may be bent over to secure.
54. Install the round tubes (four on each gang bar) between bottom front plate (slotted hole toward rear) and
plate on brace bars. Install the 34 x 6 hex bolts , 34 lock washers and nuts.
55. Install bracket on bottom side of gang bar plate, secure with 58 x 312 hex bolts , 58 lock washers and 5/8
nuts.
56. Install either 586-444S turnbuckle assembly (center section) or 586-445S (wing sections) , adjustable end on
ear on front of rear gang bars and fixed end on ear of front gang bars. Secure with 1 x 314 clevis pin , 1.5 x 1.00
x 0.075 machine washer and 316 x 2 cotter pin .
57. Now the rod end of gang cylinders may be hooked up with the 1 x 318 clevis pin, 1.5 x 1.00 x 0.075 machine
washer and 316 x 2 cotter pin .
58. Bolt may be tightened to specs, See “Torque Values Chart” on page 29 and all cotter pins may be bent.
1
2
3
4
5
6
7
8
9
10
11
12
13
5
13
5
13
13
11
1
7
6
4
3
92
111
10
8
15
4
3
12
5
56
U
D
F
B
L
R
Figure 14
Front Gang Assembly 42881

3500-4000TM Table of Contents Index Assembly 15
05/07/2019 Table of Contents Index 586-537Q
Attach Hose Clamps and Hose Wraps
Refer to Figure 15
59. When all the hoses are hooked up and tightened
properly, put hose clamps on hoses as shown.
60. Install hose wraps on hoses as needed.
Be sure and get hoses and light wiring harness
fastened 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
61. 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.
Refer to Figure 16
Hose Handles
62. 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.
63. Once all hoses are tightened, hook hoses to tractor
Color Hydraulic Function
Black Lift (2 hoses)
Green Fold (2 hoses)
Red Gang Adjustment (2 hoses)
Yellow Hydraulic Reel Att. (2 hoses, optional)
Figure 15
Hose Clamp Assembly
43972
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 pressure
can have sufficient pressure to penetrate the skin causing
serious 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.
Figure 16
Hose Handles
41552

05/07/2019 Table of Contents Index 586-537Q
3500-4000TM Table of Contents Index Assembly 16
Purging Hydraulic System
Refer to Figure 17
64. Charge the lift system first. Extend the lift cylinders
(black handles) until the center section is fully raised.
Remove the cylinder transport locks and store on
lift straps . Raise and lower the lift system several
times to purge air from system. Retract and extend
the gang system (Red Handles) several times to
purge air from system. Watch for leaks and re-
tighten fittings if necessary.
65. You may now charge the fold system. Before
charging the fold cylinders , make sure the rod end
of the cylinders (model 4000 will have two fold
cylinders on front on both sides of machine) are un-
bolted or un-pinned and block is placed under
cylinders as shown, so that when the rod is
extended, it will clear the wing fold brackets. Extend
the fold cylinders (green ends) completely and
then close them. Extend and retract the cylinders
several times to purge air from the system.
66. Now the rod end of fold cylinders may be hooked
up to wing with the 1 x 3
18 usable pin ,
1.5 x 1.0 x.075 machine washer and 316 x 2 cotter
pin. Bend cotter pin over to secure.
Figure 17
Purging Hyd. System
42278
6
5
3
1
4
2
2
1
2
3
4
5
5
5
6