Great Plains DVN8552 User Manual

Download

Page 1

Table of Contents Index

Assembly Manual

Series VIII 8321, 8324, 8326, 8328,

8333, 8537, 8544, 8548 & 8552

Discovator (Disc & Coulter)

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.

41419

ORIGINAL INSTRUCTIONS

Table of Contents Index

Page 2

Table of Contents Index

Page 3

Great Plains Manufacturing, Inc. iii

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 Inventory..........................................................6

Unloading ....................................................................... 7

Unpacking Components .............................................7

Unload Smaller Items First .........................................7

Unpacking Boxes .......................................................7

Assembly and Setup Assistance ................................7

Assembly ......................................................................8

Center Brace Bar & Torque Tube............................... 8

Truss & Level Bar.....................................................10

8321-8328, 8537-8544 Center Fold .........................12

8333, 8548-8552 Center Fold ..................................14

Connect Hitch...........................................................16

Install 8321-8324 Wings...........................................18

Install 8321-8324 Wing Fold..................................... 19

Install 8326-8333 Wings...........................................20

Install 8537-8552 Inside Wings ................................22

Install 8537-8552 Wing Fold..................................... 24

Install 8537-8552 Outside Wings..............................26

Install 8537-8552 Outside Wing Fold .......................27

Walking Beam Assembly..............................................27

Install Bearings and Seals........................................27

Install Spindle Sleeves .............................................28

Install Walking Beam................................................28

Install K-Flex............................................................. 29

Install Magnum Shank..............................................29

Gang Hangers ..............................................................30

Install Gang Hangers................................................ 30

Gang Hanger Spring Adjustment..............................30

Install 8321-8537 Gauge Wheel...............................30

Install 8544-8552 Hydraulic Gauge Wheel...............31

Hydraulic Gauge Wheel Spring Adjustment .............31

Install Hydraulic Valves ............................................32

Install Rebound Valve and O-Ring Fittings...............33

Install Depth Control Valve.......................................33

Install Hose Handles.................................................34

Install JIC Fittings.....................................................34

Attach Hose Clamps and Hose wraps ..................... 35

Hydraulic Hose Hookup ........................................... 35

Hose Handles........................................................... 36

Purging Hydraulic System........................................36

Install Gang Assembly ............................................. 38

Straight Gang Depth Indicator Installation ............... 38

Angled Gang Depth Indicator Installation................. 39

Install Depth Guide Decal ........................................ 39

Lights and SMV Assembly ....................................... 40

Rear Hitch Assembly (optional)................................ 42

Completing Setup..................................................... 42

Appendix..................................................................... 43

Torque Values Chart.................................................... 43

Tire Inflation and Warranty........................................... 44

Hydraulic Connectors and Torque ............................... 45

8321-8333 Lift & Gang Layout ..................................... 46

8321-8333 Fold Layout ................................................ 47

8537 Lift & Gang Layout .............................................. 48

8537 Lift & Gang Layout .............................................. 49

8544-8552 Lift & Gang Layout ..................................... 50

8544-8552 Lift & Gang Layout ..................................... 51

8537-8552 Fold Layout ................................................ 52

8537-8552 Fold Layout ................................................ 53

8321D Machine Layout, Disc ....................................... 54

8321C Machine Layout, Coulter .................................. 55

8324D Machine Layout, Disc ....................................... 56

8324C Machine Layout, Coulter .................................. 57

8326D Machine Layout, Disc ....................................... 58

8326C Machine Layout, Coulter .................................. 59

8328D Machine Layout, Disc ....................................... 60

8328C Machine Layout, Coulter .................................. 61

8333D Machine Layout, Disc ....................................... 62

8333C Machine Layout, Coulter .................................. 63

8537D Machine Layout, Disc ....................................... 64

8537D Machine Layout, Disc ....................................... 65

8537C Machine Layout, Coulter .................................. 66

8537C Machine Layout, Coulter .................................. 67

8544D Machine Layout, Disc ....................................... 68

8544D Machine Layout, Disc ....................................... 69

8544C Machine Layout, Coulter .................................. 70

8544C Machine Layout, Coulter .................................. 71

8548D Machine Layout, Disc ....................................... 72

8548D Machine Layout, Disc ....................................... 73

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.

02/12/2014 550-353Q-ENG

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

Page 4

iv8321-8552DV Great Plains Manufacturing, Inc.

8548C Machine Layout, Coulter .................................. 74

8548C Machine Layout, Coulter .................................. 75

8552D Machine Layout, Disc ....................................... 76

8552D Machine Layout, Disc ....................................... 77

8552C Machine Layout, Coulter .................................. 78

8552C Machine Layout, Coulter .................................. 79

8321DV HD 3 Bar Spike W/Reel ................................. 80

8321DV S7T Spike Drag.............................................. 81

8321DV S5T HR Spike Drag ....................................... 82

8321DV CH4B Coil Tine .............................................. 83

8324DV HD 3 Bar Spike W/Reel ................................. 84

8324DV S7T Spike Drag.............................................. 85

8324DV S5T HR Spike Drag ....................................... 86

8324DV CH4B Coil Tine .............................................. 87

8326DV HD 3 Bar Spike W/Reel ................................. 88

8326DV S7T Spike Drag.............................................. 89

8326DV S5T HR Spike Drag ....................................... 90

8326DV CH4B Coil Tine .............................................. 91

8328DV HD 3 Bar Spike W/Reel ................................. 92

8328DV S7T Spike Drag.............................................. 93

8328DV S5T HR Spike Drag ....................................... 94

8328DV CH4B Coil Tine .............................................. 95

8333DV HD 3 Bar Spike W/Reel ................................. 96

8333DV S7T Spike Drag.............................................. 97

8333DV S5T HR Spike Drag ....................................... 98

8333DV CH4B Coil Tine .............................................. 99

8537DV HD 3 Bar Spike W/Reel ............................... 100

8537DV HD 3 Bar Spike W/Reel ............................... 101

8537DV S7T Spike Drag............................................ 102

8537DV S7T Spike Drag............................................ 103

8537DV S5T HR Spike Drag ......................................104

8537DV S5T HR Spike Drag ......................................105

8537DV CH4B Coil Tine.............................................106

8537DV CH4B Coil Tine.............................................107

8544DV HD 3 Bar Spike W/Reel ................................108

8544DV HD 3 Bar Spike W/Reel ................................109

8544DV S7T Spike Drag ............................................110

8544DV S7T Spike Drag ............................................111

8544DV S5T HR Spike Drag ......................................112

8544DV S5T HR Spike Drag ......................................113

8544DV CH4B Coil Tine.............................................114

8544DV CH4B Coil Tine.............................................115

8548DV HD 3 Bar Spike W/Reel ................................116

8548DV HD 3 Bar Spike W/Reel ................................117

8548DV S7T Spike Drag ............................................118

8548DV S7T Spike Drag ............................................119

8548DV S5T HR Spike Drag ......................................120

8548DV S5T HR Spike Drag ......................................121

8548DV CH4B Coil Tine.............................................122

8548DV CH4B Coil Tine.............................................123

8552DV HD 3 Bar Spike W/Reel ................................124

8552DV HD 3 Bar Spike W/Reel ................................125

8552DV S7T Spike Drag ............................................126

8552DV S7T Spike Drag ............................................127

8552DV S5T HR Spike Drag ......................................128

8552DV S5T HR Spike Drag ......................................129

8552DV CH4B Coil Tine.............................................130

8552DV CH4B Coil Tine.............................................131

Index ..........................................................................133

550-353Q-ENG 02/12/2014

Page 5

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.

02/12/2014 550-353Q-ENG

Page 6

2 8321-8552DV 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.

550-353Q-ENG 02/12/2014

Page 7

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 Discovator using blocks and supports provided.

▲ Detach and store Discovator in an area where children nor-

mally 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.

02/12/2014 550-353Q-ENG

Page 8

4 8321-8552DV Great Plains Manufacturing, Inc.

Introduction

The Discovator 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 VIII, 8321-8552DV Discovator is a three or ﬁve-section ﬁeld ﬁnishing, one-pass tillage tool. Working width ranges from 21 to 52 feet. The implement is designed to combine discing/slicing, cultivating, harrowing and herbicide incorporation in a single pass. Various ﬁnishing attachments are available to customize your tillage and residue requirements for your operation

Models Covered

8321DV 21-Foot 3-section

8324DV 24-Foot 3-section

8326DV 26-Foot 3-section

8328DV 28-Foot 3-section

8333DV 33-Foot 3-section

8537DV 37-Foot 5-section

8544DV 44-Foot 5-section

8548DV 48-Foot 5-section

8552DV 52-Foot 5-section

Document Family

550-353Q-ENG Assembly Manual (this document)

550-353Q Pre-Delivery Manual

550-353M Operator Manual

550-353P Parts Manual

Tools Required

• Basic Hand Tools

• Torque Wrench

• Fork Truck, Overhead Hoist or Loader

Figure 1

Discovator

41645

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.

550-353Q-ENG 02/12/2014

3. Make sure area is level and free of obstructions (preferably an open concrete area).

4. Have all major components

5. Have all fasteners and pins shipped with Discovator.

Page 9

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.

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

Figure 2

Right / Left

41542

02/12/2014 550-353Q-ENG

Page 10

6 8321-8552DV Great Plains Manufacturing, Inc.

Shipping Inventory

The discovator will be shipped unassembled as shown in a big shipping rack and shipping boxes on pallets. The only parts that will be assembled are the disc or coulter gang assemblies and reel attachment assemblies. The reel attachments (if equipped) will be banded together with the gang assemblies on pallet.

Refer to Figure 3

• All frame sections, hitch and torque tubes will be shipped in shipping container.

Refer to Figure 4

• Shank parts, small parts and bolts will be shipped in boxes. Rear attachment big parts will be banded to attachment smaller parts box.

Shipping containers do not need to be returned to Great Plains.

Figure 3

Shipping Rack

Figure 4

Shipping Boxes

41647

41621

550-353Q-ENG 02/12/2014

Page 11

Great Plains Manufacturing, Inc. Introduction 7

Unloading

Once everything is unloaded from “storage pod” you may proceed with taking parts out of shipping containers. Carefully move everything to level site and prepare to un pack items.

Unpacking Components

Be sure you have read and understood the Important Safety Information, starting on page 1 of this manual, before you start unpacking componets.

Centering componets:

Be sure and center fork truck or chains (overhead hoist) on componets so they won’t slide and cause injury.

Carefully un-band componets.

Now unload individual componets one at a time using a fork truck or overhead hoist.

Move each component out of the way so you have plenty of room to remove the next one.

Unload Smaller Items First

Unloading the frames is a potentially dangerous operation.

Reduce risk and complication by ﬁrst unloading

1. the tire wheel assemblies,

2. the smaller items

Place these components well out of the maneuvering area needed for unloading the gang assemblies and frames.

3. Carefully unload the Frames and hitch out of shipping rack

Unpacking Boxes

1. Carefully remove banding and lids from boxes.

2. 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

02/12/2014 550-353Q-ENG

Page 12

8 8321-8552DV Great Plains Manufacturing, Inc.

Assembly

Center Brace Bar & Torque Tube

Refer to Figure 5

1. Once the center Frame has been uncrated and put

on stands, the torque tube maybe installed.

2. Carefully raise the torque tube with an overhead

hoist and secure with 1 1/4 x 6 pins , 3/8 x 2 1/4 Gr.

8 hex bolts and 3/8 top lock nut.

3. Install walking beams , See “Walking Beam

Assembly” on page 27

4. Install pre-assembled hub assembly using 5/16 x

4 bolts (models 8321-8537) or 1/2 x 4 1/2 bolts (models 8544-8552) , secure with 1/2 lock washer

and 1/2 nut.

5. Attach the tire/wheel assemblies to hub assembly

and secure with lug nuts .

4 7

6. Now install the appropriate cylinders , see hydrau-

lics section of “Parts Manual” for correct size, using 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washers

and 3/16 x 2 cotter pins.

7. Install cylinder transport locks to cylinders

10 8

using the 3/8 x 3 pins and clip pin.

Note: Install 3/4 x 2 Gr. 5 hex bolts , back to front as

shown.

8. Carefully move center brace bar into position with

fork truck or overhead hoist. Secure with 3/4 x 2 Gr. 5 hex bolts , 3/4 lock washers and 3/4 hex nuts.

9. All bolts may be tightened to specs, See “Torque Values Chart” on page 43. Attach plastic end caps

to all open ends of 4 x 3 tube.

550-353Q-ENG 02/12/2014

Page 13

Great Plains Manufacturing, Inc. Assembly 9

Cylinder Transport Lock

Install Bolts from

Back to Front

as Shown

Shown in Field Position

Cylinder Transport Lock

Shown in Transport

Position

Figure 5

Center Brace Bar & Torque Tube

41648

02/12/2014 550-353Q-ENG

Page 14

10 8321-8552DV Great Plains Manufacturing, Inc.

Truss & Level Bar

Refer to Figure 6

10. Now the center frame trusses may be installed using 5/8 x 1 1/2 Gr. 5 hex bolts , secure with 5/8

lock washers, 5/8 hex nuts and 3/4 x 2 Gr. 5 hex bolts , secure with 3/4 lock washers and lock nuts.

11. Attach the h-bracket mounting plate with 3/4 x 2 Gr. 5 hex bolts , secure with 3/4 lock washers and

lock nuts

12. Mount the bottom side of the h-bracket using the 1 x 2 29/64 pins , 1.5 x 1.0 x.075 machine washers

and 3/16 x 2 cotter pins.

13. Attach the level bar slide tube assembly into the top side of the h-bracket , secure with 1 x 9 Gr. 8 hex bolt and 1 nylon lock nut.

Note: Install level bar with depth stop tube pin to left

side of machine.

14. Now slide the front of the level bar over the back side of the level bar slide tube assembly , secure with a 3/4 x 5 1/2 Gr. 5 hex bolt and 3/4 nylock

nut.

15. Attach rear of level bar to the torque tube with the 1 x 6 Gr. 8 special hex bolt and 1 nylon lock nut.

16. Mount the level bar cross tube to the level bar side plates with 5/8 x 1 1/2 Gr. 5 hex bolts , secure

12 9

with 5/8 lock washers and 5/8 nuts.

17. All bolts may be tightened to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 15

Great Plains Manufacturing, Inc. Assembly 11

Be Sure to Install Depth Stop Mount on Left Side

Figure 6

Truss & Level Bar Assembly

02/12/2014 550-353Q-ENG

41649

Page 16

12 8321-8552DV Great Plains Manufacturing, Inc.

8321-8328, 8537-8544 Center Fold

Refer to Figure 7

18. Attach brace bar truss (models 8537 & 8544) to

front of center brace bar, outside plates with 3/4 x 2

, 3/4 lock washers and 3/4 nuts, inside plates with

5/8 x 1 1/2 bolts , 5/8 lock washers and nuts.

19. Mount front and rear fold brackets to center frame with 5/8 x 1 1/2 bolts , 5/8 lock washers and

3 4

nuts.

20. Attach inside plate of center wing stop , using 5/8 x 1 1/2 bolts , 5/8 lock washers and nuts.

21. Attach outside plate of center wing stop , with 5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 lock washers and nuts.

22. Insert the 1/2 x 4 1/2 pin w/keepers into round tubes on rear of wing stop .

23. Mount cylinder rest pads , (Models 8321-8324

only) to center frame, with 1/2 x 3 1/32 x 5 u-bolts , 1/2 lock washers and 1/2 nuts.

Note: Position cylinder rest pad 12” from inside of

outer tube to plate on pad as shown.

24. All bolts may be tightened to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 17

Great Plains Manufacturing, Inc. Assembly 13

Models 8537-8544 Only

Models 8321-8324 Only

Models 8537-8544 Only

Models 8326-8328, 8537-8544 Only

Models 8323-8328 Only

Figure 7

8321-8328, 8537-8544 Center Fold

02/12/2014 550-353Q-ENG

41650

Page 18

14 8321-8552DV Great Plains Manufacturing, Inc.

8333, 8548-8552 Center Fold

Refer to Figure 8

25. Mount front and rear fold brackets to center frame with 5/8 x 1 1/2 bolts , 5/8 lock washers and

1 2

nuts.

26. Attach plates of front wing stop , with 5/8 x 3 1/32 x 4 1/2 u-bolts , 5/8 lock washers and nuts. Position

plates of wing stop over truss mounting tube as shown.

27. Insert the 1/2 x 4 1/2 pin w/keepers into round tubes on rear of wing stop .

28. Attach rear wing stop on center frame tubes as shown, with 5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 lock

washers and nuts.

29. Mount the SMV sign to wing stop, with 1/4 x 3/4 pan head screws , 1/4 lock washers and 1/4 nuts.

30. All bolts may be tightened to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 19

Great Plains Manufacturing, Inc. Assembly 15

Models 8548-8552 Only

Models 8333 Only

Figure 8

8333, 8548-8552 Center Fold

Position Wing Stop with One U-Bolt on each Side of Truss Mounting Tube

42327

02/12/2014 550-353Q-ENG

Page 20

16 8321-8552DV Great Plains Manufacturing, Inc.

Connect Hitch

Refer to Figure 9

31. Attach hitch to center brace bar using 1 1/4 x 7 Gr. 8 hex bolt and top lock nut.

32. Mount square jack to front mount on hitch with

3 1

pin provided with jack.

• Use jack to help support front of hitch for rest of hitch

assembly.

33. Attach rear of turnbuckle assembly to h-bracket with 1 x 9 Gr. 8 hex bolt and 1 nylon lock nut.

34. Attach front of turnbuckle assembly to hitch using 1 x 3 3/8 pin , 1.5 x 1.0 x.075 machine

4 1

washer and 3/16 x 2 cotter pin.

35. Slip holes in turnbuckle wrench over pegs on inside (left) side of hitch .

36. Align holes in hitch base with holes in front of hitch

37. Align holes in safety chain support with holes on left side of hitch , secure with 1 x 8 Gr. 8 special hex bolts , 1 lock washers and 1 nut.

38. Install safety chain on bottom side of hitch ,

12 1

secure with 1 x 7 Gr. 8 hex bolt , 1 3/4od x 1 1/32 id x 1/2 round tube , fold roller , 1 lock washer

13 14

and 1 nut.

39. Route safety chain through safety chain support

40. Mount spring hose loop to top side of hitch , with 1/2 x 1 1/2 bolt , 1/2 ﬂat washer, 1/2 lock

15 1

washer and 1/2 nut.

41. Mount the manual pack to hitch with 1/4 x 3/4 pan screws , rubber spacers , 1/4 lock washers

18 19

17 1

and 1/4 nuts.

42. All bolts may be tightened to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 21

Great Plains Manufacturing, Inc. Assembly 17

Figure 9

Hitch Assembly

02/12/2014 550-353Q-ENG

41651

Page 22

18 8321-8552DV Great Plains Manufacturing, Inc.

Install 8321-8324 Wings

Refer to Figure 10

43. Carefully align holes in wing frame LH with holes in center frame. Secure with 1 x 7 Gr. 8 special thread hex bolt and 1 nylon lock nut.

Note: Be sure and install the 1 x 6 hex bolts as shown

44. Attach wing brace to the front of the wing frame LH

with 3/4 x 2 Gr. 5 hex bolts , 3/4 lock washers

1 4

and 3/4 hex nuts.

45. Install 1 x 6 Gr. 5 hex bolts and 1 nylon lock nuts through hinge in center wing brace.

with arrows with head against plate on side of hinge.

Refer to Figure 11

Note: If you have a model 8324, go to Refer to Figure 12.

46. Align holes in wheel arm L , secure with 1 1/4 x 6 pins , 3/8 x 2 1/4 hex bolts and 3/8 top lock nuts.

6 7

47. Model 8321, align hole in 6-bolt spindle assembly with wheel arm tube, secure with 5/16 x 2 13/16 clevis pin and 1/8 x 1 cotter pin, bend over to secure.

48. Attach tire/wheel assembly with lug nuts .

49. Repeat same procedure for right wing.

Refer to Figure 12

50. Align holes in wheel arm L , secure with 1 1/4 x 6 pins , 3/8 x 2 1/4 hex bolts and 3/8 top lock nuts.

13 14

51. Install walking beams , See “Walking Beam Assembly” on page 27.

52. Model 8324, align hole in 6-bolt spindle assembly with tube of walking beam, secure with 5/16 x 2 13/16 clevis pin and 1/8 x 1 cotter pin, bend over to secure.

53. Attach tire/wheel assembly with lug nuts .

54. Install hub/wheel on other side of walking beam .

55. Repeat same procedure for right wing.

56. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

10 11

17 18

42330

Figure 10

8321-8324 Wing

Figure 11

8321 Hub/Wheel

Figure 12

8324 Hub/Wheel

42330

550-353Q-ENG 02/12/2014

Page 23

Great Plains Manufacturing, Inc. Assembly 19

Install 8321-8324 Wing Fold

Refer to Figure 13

57. Attach 1 1/4 x 9 1/2 eye bolt , secure with 1 1/4 jam nuts (one on each side of plate).

58. Mount 3.5 x 8 x 1.25 cylinder to eye bolt and wheel arm L with 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washers and 3/16 x 2 cotter pins.

59. Mount rocker bracket to wing plate with 3/4 x 3 Gr. 5 hex bolts , 3/4 lock washers and 3/4 hex nuts.

60. Attach one end of rocker to rocker bracket using 1 x 3 3/8 pin , 1.5 x 1.0 x.075 machine washer and 3/16 x 2 cotter pin.

61. Bolt the connecting link , with 1 x 3 Gr. 5 bolts , 1 lock washers and 1 nuts.

62. Attach base end of 3.5 x 24 x 1.25 cylinders to center fold bracket with 1 x 3 11/16 pin , 1.5 x 1.0 x.075 machine washer and 3/16 x 2 cotter pin.

Note: Do not attach rod end of fold cylinders until fold sys-

tem has been purged, See “Purging Hydraulic System” on page 36.

63. Repeat same procedure for right wing.

64. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

3 1

7 5

910

Figure 13

8321-8324 Wing Fold

Model8321Does Not Use Connecting Link.

41665

02/12/2014 550-353Q-ENG

Page 24

20 8321-8552DV Great Plains Manufacturing, Inc.

Install 8326-8333 Wings

Refer to Figure 14

65. Carefully align holes in wing frame LH with holes

in center frame. Secure with 1 x 7 Gr. 8 special thread hex bolt and 1 nylon lock nut.

Note: Be sure and install the1x6hexbolts as shown

with arrows with head against plate on side of hinge.

66. Align holes in wheel arm L , secure with 1 1/4 x 6 pin , 3/8 x 2 1/4 hex bolts and 3/8 top lock nuts.

4 5

67. install walking beams , See “Walking Beam

Assembly” on page 27.

68. Align hole in 6-bolt spindle assembly , secure with 5/16 x 2 13/16 clevis pin and 1/8 x 1 cotter pin,

bend over to secure.

69. Attach tire/wheel assembly with lug nuts .

70. Attach wing brace to the front of the wing frame LH with 3/4 x 2 Gr. 5 hex bolts , 3/4 lock wash-

112

910

ers and 3/4 hex nuts.

71. Install 1 x 6 Gr. 5 hex bolt and 1 nylon lock nut

through hinge in center wing brace.

72. Attach 1 1/4 x 9 1/2 eye bolt , secure with 1 1/4 jam nut (one on each side plate).

73. Mount 3.25 x 8 x 1.25 cylinder (models 8326-8328) or 3.75 x 8 x 1.38 (models 8333) to eye bolt and wheel arm L with 1 x 3 11/16 pins , 1.5 x

15 13

1.0 x.075 machine washers and 3/16 x 2 cotter pins.

74. Mount wing fold bracket to wing with 3/4x5Gr.5 hex bolts , 3/4 lock washers and 3/4 hex nuts, 5/8

x 3 1/32 x 5 1/2 u-bolts , 5/8 lock washers and 5/8

hex nuts.

75. Attach base end of4x30x1.5cylinders to center fold bracket with 1 x 3 11/16 pin , 1.5 x 1.0

x.075 machine washer and 3/16 x 2 cotter pin.

Note: Do not attach rod end of fold cylinders until fold

system has been purged, See “Purging Hydrau- lic System” on page 36.

76. Repeat same procedure for right wing.

77. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 25

Great Plains Manufacturing, Inc. Assembly 21

Figure 14

8326-8333 Wing

02/12/2014 550-353Q-ENG

41653

Page 26

22 8321-8552DV Great Plains Manufacturing, Inc.

Install 8537-8552 Inside Wings

Refer to Figure 15

78. Carefully align holes in wing frame LH with holes

in center frame. Secure with 1 x 7 Gr. 8 special thread hex bolt and 1 nylon lock nut.

Note: Be sure and install the1x6hexbolts as shown

with arrows with head against plate on side of hinge.

79. Attach wheel arm L , to wing frame secure with 1 1/4 x 6 pin , 3/8 x 2 1/4 hex bolts and 3/8 top lock

4 5

3 1

nuts.

80. Install walking beams , See “Walking Beam

Assembly” on page 27.

81. Align hole in 6-bolt spindle assembly , secure with 5/16 x 2 13/16 clevis pin and 1/8 x 1 cotter pin,

bend over to secure.

82. Attach tire/wheel assembly with lug nuts .

910

83. Attach wing brace to the front of the wing frame LH with 3/4 x 2 Gr. 5 hex bolts , 3/4 lock wash-

112

ers and 3/4 hex nuts.

84. Attach wing lock mount with 1/2 x 3 1/32 x 5 ubolts , 1/2 lock washers and 1/2 nuts.

Note: See layout section for proper placement of lock

mount .

85. Mount automatic wing latch , using 3/4 x 4 1/2 hex bolt and 3/4 lock nut.

86. Attach bolt-on stub , to wing frame plate, using 5/8 x 1 1/2 hex bolts , 5/8 lock washers and 5/8 nuts.

87. Repeat same procedure for right wing.

88. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 27

Great Plains Manufacturing, Inc. Assembly 23

Model8548&8552 Only.

Figure 15

8537-8552 Wing

02/12/2014 550-353Q-ENG

41655

Page 28

24 8321-8552DV Great Plains Manufacturing, Inc.

Install 8537-8552 Wing Fold

Refer to Figure 16

89. Attach 1 1/4 x 9 1/2 eye bolt , secure with 1 1/4 jam nuts (one on each side of plate).

90. Mount cylinder to eye bolt and wheel arm L with 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washers

3 1

and 3/16 x 2 cotter pins.

Note: See hydraulic section of “Part’s Manual” for proper

cylinders.

91. Mount front fold bracket to wing plate with 3/4 x 3 Gr. 5 hex bolts , 3/4 x 5 1/2 hex bolt ,3/4 lock

6 7

washers and 3/4 hex nuts, 5/8 x 3 1/32 x 5 1/2 ubolts , 5/8 lock washers and 5/8 nuts.

92. Mount rear fold bracket to wing plate with 3/4 x 3 Gr. 5 hex bolts , 3/4 lock washers and 3/4 hex nuts,

5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 x 2 hex bolts , 5/

810

8 lock washers and 5/8 nuts.

93. Attach wing rest , on top of front fold bracket , wing rest plate , bottom of fold bracket, with 1/2 x 4 1/2 hex bolts , 1/2 lock washers and nuts.

11 5

Note: See layout section for proper placement of wing

rest pad .

94. Bolt the 180-degree fold bracket , with 5/8 x 2 hex bolts , 5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 lock

10 8

washers and 5/8 nuts.

95. Attach base end of4x30x1.5cylinders to center fold bracket with 1 x 3 11/16 pin , 1.5 x 1.0 x.075

machine washer and 3/16 x 2 cotter pin.

96. Do not attach rod end of fold cylinders until fold system has been purged, See “Purging Hydraulic Sys- tem” on page 36.

97. Repeat same procedure for right wing.

98. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

Page 29

Great Plains Manufacturing, Inc. Assembly 25

Figure 16

8537-8552 Wing Fold

02/12/2014 550-353Q-ENG

Models8537-8552Coulter Only.

41654

Page 30

26 8321-8552DV Great Plains Manufacturing, Inc.

Install 8537-8552 Outside Wings

Refer to Figure 17

99. Attach outside wing hinges , to wing frame and wing brace , with 1 x 5 1/2 Gr. 5 hex bolt , 1 nylon lock, 5/8 3 1/32 x 5 1/2 u-bolts , 5/8 lock washers and 5/8 nuts.

100.Attach wing brace to the front of the wing frame LH

with 3/4 x 2 Gr. 5 hex bolts , 3/4 lock washers, 3/4

2 6

hex nuts and 1 x 6 Gr. 8 hex bolt and 1 nylon lock nut.

101.Carefully align holes in wing hinges with holes in inside wing fold brackets. Secure rear two hinges with 1 1/4 x 8 Gr. 8 hex bolt and 1 1/4 nylon lock nut, front hinge with 1 x 6 Gr. 8 hex bolt and 1 nylon lock nut.

102.Repeat same procedure for right wing.

Refer to Figure 18

Note: For Models 8548-8552, See “8548-8552 Outside

Wing Transport” on page 26

103.Attach holes in wheel arm L , to wing frame , secure with 1 1/4 x 6 pin , 3/8 x 2 1/4 hex bolts and 3/8 top lock nuts.

104. Align hole in 6-bolt spindle assembly , to wheel arm , secure with 5/16 x 2 1/16 pin and 1/8 x 1

10 14

cotter pin.

105.Attach pre-assembled tire/wheel assembly with lug nuts .

106.Repeat same procedure for right wing.

3 5

1 2

10 2

11 12

Models8537-8552 Coulter Only.

Figure 17

8537-8552 Outside Wing

Figure 18

8537-8544 Outside Wing Transport

Models8537-8552 Coulter Only.

41666

42331

Refer to Figure 19

107.Attach holes in wheel arm L , to wing frame , secure with 1 1/4 x 6 pin , 3/8 x 2 1/4 hex bolts and 3/8 top lock nuts.

108.Install walking beams , See “Walking Beam Assembly” on page 27.

109. Align hole in 6-bolt spindle assembly , to walking beam , secure with 5/16 x 2 13/16 clevis pin and

19 20

1/8 x 1 cotter pin, bend over to secure.

110.Attach pre-assembled tire/wheel assembly with lug nuts .

111.Repeat same procedure for right wing.

112.Tighten all bolts to specs, See “Torque Values Chart” on page 43.

550-353Q-ENG 02/12/2014

17 2

11 12

8548-8552 Outside Wing Transport

Figure 19

42332

Page 31

Great Plains Manufacturing, Inc. Assembly 27

Install 8537-8552 Outside Wing Fold

Refer to Figure 20

113.IAttach 1 1/4 x 9 1/2 eye bolt , secure with 1 1/4 jam nut (one on each side plate).

114.Mount 3.5 x 8 x 1.25 cylinder (models 8537-8544) or 4 x 8 x 1.38 (models 8548-8552) to eye bolt and wheel arm L with 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washers and 3/16 x 2 cotter pins.

115.Mount bottom of rocker to wing hinge with1x33/8 clevis pin ,1.5 x 1.0 x.075 machine washer and 3/16 x 2 cotter pin, bend cotter pin over to secure.

116.Attach base end of 3.5 x 24 x 1.25 cylinders to fold bracket with 1 x 3 11/16 pin , 1.5 x 1.0 x.075 machine washer and 3/16 x 2 cotter pin.

117.Do not attach rod end of fold cylinders until fold system has been purged, See “Purging Hydraulic Sys- tem” on page 36.

118.When fold system is purged, attach rod end of cylinders , to top of rockers , with 1 x 7 hinge pin , 1 ﬂat washers, 1 3/4 od rollers and 3/8 x 2 roll pins in order shown.

119.Mount wing lock T brackets , with 1/2 x 3 1/32 x 5 ubolts , 1/2 lock washers and 1/2 nuts.

Note: See layout section for proper placement of wing lock

T brackets .

120.Repeat same procedure for right wing.

121.Tighten all bolts to specs, See “Torque Values Chart” on page 43.

7 5 8

3 1

Figure 20

8537-8552 Outside Wing Fold

41656

Walking Beam Assembly

Note: The center and wing walking beams install the same way as shown below.

Install Bearings and Seals

Refer to Figure 21

122.Pack bearings with grease and put one on each side of torque tube ,

123.Carefully drive grease seals (metal part of seal to outside) into torque tube until it ﬂush with the outside of torque tube.

Figure 21

Bearing & Seal

02/12/2014 550-353Q-ENG

41673

Page 32

28 8321-8552DV Great Plains Manufacturing, Inc.

Install Spindle Sleeves

Refer to Figure 22

124.Slide one spindle sleeve through the back side of torque tube seal until it goes against bearing . The rubber part of seal will hold it in place until the walking beam is installed.

125.Slide the other spindle sleeve as far on to the pivot spindle as it will go.

Note: Be sure spindle sleeve stay in position when in-

stalling walking beam , if not installed properly it will not pivot correctly or will cause excessive wear.

3 2

Install Walking Beam

Refer to Figure 23

Note: Be sure spindle sleeves stay in correct positions.

126.Now align holes in walking beam with holes in grease seals .

127.Secure with center pivot spindle , two, machine washers , and slotted nut .

Note: Tighten slotted nut snug until all the end play is

out of bearings. If necessary to align slot with hole in spindle, then back off nut a 1/2 slot (maximum) and install cotter pin, bend over to secure.

Refer to Figure 24

Note: Orientate the 8544-8552 walking beam as shown.

Be sure spindle sleeves stay in correct positions.

128.Now align holes in walking beam with holes in grease seals .

129.Secure with center pivot spindle , two, machine washers , and slotted nut .

Note: Tighten slotted nut snug until all the end play is

out of bearings. If necessary to align slot with hole in spindle, then back off nut a 1/2 slot (maximum) and install cotter pin, bend over to secure.

7 8

Spindle Sleeve Assembly

Be Sure Spindle Sleeve is installed.

8321-8537 Walking Beam

Be Sure Spindle Sleeve is installed.

Figure 22

Figure 23

41674

Be Sure Spindle Sleeve is installed.

41675

Mount Spindle Tubes Offset Towards Top.

Be Sure Spindle Sleeve is installed.

Figure 24

8544-8552 Walking Beam

550-353Q-ENG 02/12/2014

42333

Page 33

Great Plains Manufacturing, Inc. Assembly 29

Install K-Flex

Note: See layout section for proper shank placement. If

machine is equipped with magnum shanks,

Refer to Figure 25

130.Slide k-flex shank mount through slot in k-ﬂex clamp . Slide these two parts over frame tube in proper location.

131.Align top hole in k-ﬂex clip with top hole in k-ﬂex clamp , secure with 1/2 x 1 1/2 Gr. 5 hex bolt , 1/ 2 lock washer and 1/2 nut. Install 1/2 x 5 Gr. 5 hex bolts , 1/2 lock washers and 1/2 nuts.

132.Slide shank through slotted hole in k-ﬂex shank mount , secure with 5/8 x 2 Gr. 5 hex bolt and 5/ 8 top lock nut. Attach sweep with 7/16 x 1 3/4 Gr. 5 plow bolts , one, 7/16 ﬂat washer (top slotted hole) and 7/16 nylock nuts.

133.Tighten all bolts to specs, See “Torque Values Chart” on page 43.

2 4

1 7

910

Figure 25

K-Flex Assembly

41667

Install Magnum Shank

Note: See layout section for proper shank placement.

Refer to Figure 26

134.Loosen 1/2 x 1 1/2 hex bolt clear up to get 5/8 x 2 Gr. 5 hex bolt installed.

135.Position pre-assembled shank mount assembly over front of frame tube in proper location. Secure with 5/8 x 4 1/32 x 4 3/4 u-bolt and 5/8 top lock nut.

136.Be sure the 3/4 nylock jam nut is loose enough for shank cradle to pivot.

137.Slide shank into shank cradle until holes are aligned, secure with 5/8 x 2 Gr. 5 hex bolt and 5/8 top lock nut.

138.Align sweep with holes on shank , secure with 7/16 x 1 3/4 plow bolts , one, 7/16 ﬂat washer (top slotted hole) and 7/16 nylock nuts.

139.Re-tighten 1/2 x 1 1/2 hex bolt until threads bottom out.

Note: IIMPORANT(!) Be sure and tighten 3/4 nylock

jam nut until threads bottom out to insure that hole doesn’t wear excessively.

140.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43.

7 5

8 9

Figure 26

Magnum Shank Assembly

41668

02/12/2014 550-353Q-ENG

Page 34

30 8321-8552DV Great Plains Manufacturing, Inc.

Gang Hangers

Install Gang Hangers

Refer to Figure 27

Note: See layout section for proper gang hanger placement

of wing .

141.Install gang hanger to proper frame tube with 5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 lock washers and 5/8 nuts.

142.Slide cupped washer and spring over gang spring bolt .Slide gang spring bolt through gang hanger tube, secure with 1 ﬂat washer , 1 hex nut and 1 jam nut .

143.Install gang lift cylinders , as shown, with 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washer and 3/16 x 2 cotter pin.

144.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43.

4 5

3 3 1

6 7

Gang Hanger Spring Adjustment

Refer to Figure 28

145.Tighten 1 hex nut to preload of 8 3/4 (22.23cm)

146.Tighten down 1 jam nut , See “Refer to Figure 27” on page 30.

147.Tighten rest of bolts to specs and bend cotter pins.

Install 8321-8537 Gauge Wheel

Refer to Figure 29

Note: Standard on model 8537 and optional on models

8321-8333, 8544-8552.

148.Install gauge wheel bracket , using 5/8 x 4 1/32 x 4 1/4 u-bolts or 5/8 x 1 1/2 hex bolt , secure with 5/8 lock washers and 5/8 nuts.

149.Attach optional angle stub extension between gauge wheel bracket and outside wing frame with same bolts and u-bolts.

150.Slide gauge wheel arm assembly into gauge wheel bracket , secure with 3/4 x 4 3/8 hitch pin and keeper. Attach the 1/2 x 1 hex bolts into gauge wheel bracket .

151.Attach wheel/tire assembly , gauge wheel arm assembly , secure with 1/2 x 1 wheel bolts .

152.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43.

2 3

1 5

Figure 27

Gang Hanger Assembly

Figure 28

Gang Hanger Spring Adjustment

41664

41575

Figure 29

Gauge Wheel Assembly

41662

550-353Q-ENG 02/12/2014

Page 35

Great Plains Manufacturing, Inc. Assembly 31

Install 8544-8552 Hydraulic Gauge Wheel

Refer to Figure 30

153.Install gauge wheel arm mounts , to plates on front of wing brace, using 5/8 x 1 1/2 hex bolt , secure with 5/8 lock washers and 5/8 nuts.

154.Align holes in gauge wheel arm LH , with top holes of gauge wheel arm mounts , secure with 1 x 6 hex bolts and 1 nylon lock nuts.

155.Align holes in gauge wheel arm w/lever LH with top holes of gauge wheel arm mounts , secure with1x6 hex bolts and 1 nylon lock nuts.

156.Attach 1 x 8 1/2 eye bolt , secure with 1 jam nut (one on each side plate).

157.Mount 3.25 x 8 x 1.25 (model 8544) or 3.75 x 8 x 1.38 (models 8548-8552) cylinder to gauge wheel arm w/ lever LH , with 1 x 3 11/16 pins , 1.5 x 1.0 x.075 machine washers and 3/16 x 2 cotter pins.

158.Align holes in pivot bracket to holes in gauge wheel arm LH and gauge wheel arm w/lever LH , secure with 3/4 x 4 1/2 hex bolts , 3/4 lock washers and 3/4 nuts.

159.Slide gauge wheel arm spindle LH assembly up through pivot bracket , slide friction cap , spring

, spring cover , secure with 3/4 hex nut and 3/4

14 15

jam nut.

160.Attach wheel/tire assembly to gauge wheel arm spindle LH assembly , secure with 1/2 x 1 1/4 wheel bolts gauge wheel arm spindle LH assembly .

161.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43.

6 7

5 9

3 5

10 13

Figure 30

Hydraulic Gauge Wheel Assembly

41663

Hydraulic Gauge Wheel Spring Adjustment

Refer to Figure 31

162.Adjust spring cover with 3/4 hex nut until there is a 1/4” gap between friction cap and spring cover .

163.Tighten 3/4 jam nut down against 3/4 hex nut to secure.

02/12/2014 550-353Q-ENG

13 15

Figure 31

Spring Adjustment

41676

Page 36

32 8321-8552DV Great Plains Manufacturing, Inc.

Install Hydraulic Valves

Refer to Figure 32

164.Attach depth stop valve mounting bracket with 5/8 x 3 1/32 x 5 1/2 u-bolts , 5/8 lock washers and 5/8 nuts.

165.Align holes in depth control valve to top of depth stop valve mounting bracket using 5/16 x 2 Gr. 5 hex bolts

and 5/16 lock washers.

166.Slide one end of depth stop tube (with 2 holes) through slotted hole in depth stop valve mounting bracket . Slide other end of depth stop tube over peg on left side of level bar, secure with 1/2 ﬂat washer

6 7

167.Bolt depth stop screw assembly to front of depth stop tube with 1/2 x 2 1/2 Gr. 5 hex bolts , 1/2 lock washers and 1/2 nuts.

168.Align holes of rebound bracket on front side of center frame tube (to right of level bar mount assembly. Align holes in rebound mount plate with holes on rebound bracket (back side of side of center frame tube, secure with 1/2 x 4 1/2 Gr. 5 hex bolts , 1/2 lock washers and 1/2 nuts.

169.Mount rebound valve in position shown, with 5/16 x 4 Gr. 5 hex bolts , 5/16 lock washers and 5/16 nuts.

170.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43 and bend cotter pin.

171.Install all hydraulic ﬁttings as shown in steps below.

1 5

and 1/8 x 1 cotter pin .

5 9

Figure 32

Hydraulic Valves

41659

550-353Q-ENG 02/12/2014

Page 37

Great Plains Manufacturing, Inc. Assembly 33

Install Rebound Valve and O-Ring Fittings

Refer to Figure 33

172.Thread straight (non- adjustable stud) ﬁttings into ports V1, V2 and C2 of rebound valve .

Note: Tighten as shown below. Do not over tighten as this

could cause damage to valves.

a. Inspect all components for damage or contamination

during shipping.

b. Lubricate o-ring and threads on ﬁtting.

c. Turn ﬁtting into port until ﬁnger tight, See “Hydraulic

Connectors and Torque” on page 45 or proper torque value.

173.Thread elbow (adjustable stud) ﬁtting2 into port C1 of rebound valve .

a. Follow steps a and b from the foregoing instructions,

then proceed with the following steps below.

b.Looking from ﬁtting from end with nut/washer/o-ring

assembly, turn nut clockwise as far as possible.

c.Using wrench, turn ﬁtting into port until the washer

touches the port spot face. Continue turning ﬁtting until washer touches thread nearest wrench pad.

d.Back off ﬁtting counterclockwise not exceeding one

revolution until it is oriented in the correct position.

e.Place wrench on the wrench pad of ﬁtting to prevent ﬁt-

ting from turning, and See “Hydraulic Connectors and Torque” on page 45 for proper torque value.

Figure 33

Rebound Valve Fittings

42193

Install Depth Control Valve

Refer to Figure 34

174.Thread elbow (adjustable stud) ﬁtting into rear port of depth stop valve . Thread straight (non- adjustable stud) ﬁttings into right port of depth control valve .

175.Tighten ORB ﬁttings as shown in, See “Rebound Valve Fittings” on page 33.

3 1

Figure 34

Depth Control Valve Fittings

42099

02/12/2014 550-353Q-ENG

Page 38

34 8321-8552DV Great Plains Manufacturing, Inc.

Install Hose Handles

Refer to Figure 35

Note: Hose handles are color coded. See “Hydraulic Hose

Hookup” on page 35 for proper placement on hoses.

176.Install ﬁttings to end of hoses running to front of hitch. Attach poppet ﬁttings to ﬁttings .

177.Tighten ORB ﬁttings as shown in, See “Rebound Valve Fittings” on page 33.

178.Align the grooves in the front of the hose handles to the back two ribs of ﬁttings as shown and install the self threading screws through holes.

179.Route hoses as shown in layout section.

2 1

3 2

Install JIC Fittings

Refer to Figure 36

180.Install JIC female hose to male ﬁtting.

181.When the JIC hoses are routed, follow the following procedure for hooking up and tightening.

a.Inspect for possible contamination or damage from

shipping or handling. Sealing surface should be smooth. Annular tool marks of (100uin) concentric with thread permissible.

b.Lubricate the threads and the entire surface of the cone

with hydraulic ﬂuid or a light lubricant.

c.Align mating componets for hand connection and turn

ﬂare nut until sealing surfaces make full contact.

d.Torque nut to the values shown in, See “Hydraulic

Connectors and Torque” on page 45. If a wrench pad is provided next to nut, place a second wrench on pad to prevent ﬂare from rotating while being torqued.

e.When torquing nut onto a straight ﬂared ﬁtting, it may be

necessary to also place a wrench on the ﬂared ﬁtting wrench pad to prevent it from turning during assembly.

Figure 35

Hose Handle Assembly

41672

Figure 36

JIC Fittings Assembly

41678

550-353Q-ENG 02/12/2014

Page 39

Great Plains Manufacturing, Inc. Assembly 35

182.Alternate Assembly Method for JIC.

a.If torqued method not possible, follow steps a-c

(step 166), then proceed to the steps below.

b.Lightly wrench tighten the nut until there is ﬁrm

resistance.

c. Place a wrench on wrench pad next to nut as

near the 6 0’clock position as possible.

d.Place second wrench on nut as near the 3

o’clock position as possible.

e.Turn nut clockwise to no less than the 4 o’clock

position and no more than the 6 o’clock position. Required rotation generally decreases as size increases.

Attach Hose Clamps and Hose wraps

Refer to Figure 37

183.When all the hoses are hooked up and tightened properly, put hose clamps on hoses as shown.

184.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.

Figure 37

Hose Clamp Assembly

41583

Hydraulic Hose Hookup

185.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 Gang (2 hoses)

02/12/2014 550-353Q-ENG

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.

Page 40

36 8321-8552DV Great Plains Manufacturing, Inc.

Hose Handles

Refer to Figure 38

186.To distinguish hoses on the same hydraulic circuit, refer to hose handles. The hose under an extendedcylinder symbol feeds a cylinder base end. The hose under a retracted-cylinder symbol feeds a cylinder rod end.

187.Once all hoses are tightened, hook hoses to tractor

Purging Hydraulic System

Refer to Figure 39

188.Charge the lift system ﬁrst. Extend the lift cylinders

(black handles) until the center section is fully

raise. Remove the cylinder transport locks . The wings will not start to rise until the center cylinders are fully extended and the master cylinders begin to bypass oil through the rephasing ports, to the wing cylinders. Watch for leaks and retighten ﬁttings if necessary. Continue to pump oil to the lift system until the wing cylinders are also fully extended. At this point, reverse the ﬂow and lower the unit to the ground, retracting all cylinders. Raise and lower the unit several times to purge air from the system.

189.You may now charge the fold system. Before charging the fold cylinders , make sure the rod end of the

Figure 38

41552

Hose Handles

cylinders are un pinned and block is under cylinder 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. Now the cylinders may be extended far enough to be connected to the wing fold brackets. Remove wood block and install1x311/16 pin , 1.5 x 1.0 x.075 machine washer and 3/16 x 2

cotter pin.

190. The gang lift system (red handles), will need

purged like the lift system. Raise and lower the gang system several times to purge air from system.

550-353Q-ENG 02/12/2014

Page 41

Great Plains Manufacturing, Inc. Assembly 37

Figure 39

Hydraulic Purging

02/12/2014 550-353Q-ENG

41660

Page 42

38 8321-8552DV Great Plains Manufacturing, Inc.

Install Gang Assembly

Note: See layout section for proper gang assembly

placement.

Refer to Figure 40

Note: The disc or coulter gang assemblies will be shipped

banded together. Carefully un-band the assemblies. The L bundle number will be written on a blade of each gang assembly.

191.Carefully slide gang assembly under gang hanger

and slowly lower machine down until front holes line up, secure with 1 x 5 1/2 pin , 3/8 x 2 1/4 Gr. 8 hex bolt

2 3

and 3/8 top lock nut. Slide clevis end of gang spring bolt

over rear hole of gang frame, secure with 3/4 x 2 1/2

pin , 3/4 ﬂat washer and 5/32 x 1 1/2 cotter pin.

192.Tighten rest of bolts to specs, See “Torque Values Chart” on page 43.

Straight Gang Depth Indicator Installation

Note: See layout section for proper depth indicator tower

placement.

Refer to Figure 41

193.Attach depth indicator tower (models 8321D-8552D) to angled tube or (models 8321C-8328C) to straight front tube of center wing brace as shown, secure with 1/2 x 3 1/32 x 5 u-bolts , 1/2 lock washers and 1/2 nuts.

194.Align holes on one end of the depth indicator links (one on each side) of the lever on the gang hanger, secure with a 1/2 x 1 1/2 Gr. 5 hex bolt and 1/2 top lock nut. Slide bent end of depth indicator pointer through slot in depth indicator tower . Slide other end of depth indicator pointer over peg on center wing brace, secure with 1/2 ﬂat washer and 1/8 x 1 1/2 cotter pin. Slide other end of depth indicator links over depth indicator pointer , secure with two, 1/2 ﬂat washers , 1/2 x 1/2 Gr. 5 hex bolt and 1/2 top lock

6 5

nut.

195.Torque u-bolts to specs, See “Torque Values Chart”

on page 43. Tighten 1/2 x 1 1/2 Gr. 5 hex bolts down snug but leave loose enough to pivot. Bend 1/8 x 1 1/2 cotter pin over.

196.See “Depth Guide Decal Placement” on page 39 for placement of Depth Guide Decal .

Figure 40

Gang to Gang Hanger

41661

Figure 41

Straight Gang Depth Indicator

41669

550-353Q-ENG 02/12/2014

Page 43

Great Plains Manufacturing, Inc. Assembly 39

Angled Gang Depth Indicator Installation

Note: See layout section for proper depth indicator tower

placement.

Refer to Figure 42

197.Attach depth indicator tower (models 8333C-8552C)

to tube of center wing brace as shown, secure with 1/2 x 3 1/32 x 3 u-bolts , 1/2 lock washers and 1/2 nuts.

198.The rest of the parts install like, See “Straight Gang Depth Indicator” on page 38.

Install Depth Guide Decal

Refer to Figure 43

199.Be sure the spring preload is set at dimension shown. Move the top of the gang blades to the dimension shown. Clean the front of the plate on the tower and place the decal with the pointer at “O”.

200.See Operating Section in “Operator’s Manual” for proper depth in ﬁeld operation.

Figure 42

Angled Gang Depth Indicator

Figure 43

Depth Guide Decal Placement

41677

41577

02/12/2014 550-353Q-ENG

Page 44

40 8321-8552DV Great Plains Manufacturing, Inc.

Lights and SMV Assembly

Refer to Figure 44

201.Fasten light bracket LH to stub plate of center frame with 1/2 x 1 1/2 Gr. 5 hex bolts , 1/2 lock

washers and 1/2 huts. Repeat same procedure for light bracket RH .

202.Attach light mounting brackets to rear side tube as

shown, of center frame, with 1/2 x 4 1/32 x 4 u-bolts

, 1/2 lock washers and 1/2 huts.

203.Attach smv post (models 8321-8333) to back side of same tube as light mounting brackets , as close

to center as possible. Secure with 1/2 x 4 1/32 x 4 ubolts , 1/2 lock washers and 1/2 huts. Attach smv

sign to back side of smv post , secure with 1/4 x

7 6

3/4 pan head screws , 1/4 lock washers and 1/4

nuts.

204.Route light harness 30’ lead from front of hitch

(tractor plug to front), along same route as hydraulic hose (fasten in same clamps and hose wraps as

hoses). Plug one end of enhance light harness to small end of light harness 30’ lead . Plug bigger end of wishbone light harness into other end of enhance light module . Route other ends over

towards (marked left and right) the light mounting brackets as shown.

205.Mount red lamp lights to top of light mounting brackets , with 1/4 x 1 Gr. 5 hex bolts and 1/4

414

lock nuts.

206.Mount amber lamp lights to top of light brackets

and , with 1/4 x 1 Gr. 5 hex bolts and 1/4 lock

1 214

nuts.

207.Tighten all bolts to specs. Be sure and get all wiring harnesses fastened up securely with hose wraps or clamps (if routed close to hydraulic hoses) or use cable ties .

550-353Q-ENG 02/12/2014

Page 45

Great Plains Manufacturing, Inc. Assembly 41

Figure 44

Lights & SMV

02/12/2014 550-353Q-ENG

41659

Page 46

42 8321-8552DV Great Plains Manufacturing, Inc.

Rear Hitch Assembly (optional)

Refer to Figure 45

Note: The rear tow hitch will be shipped with big compo-

nents banded together and bolts will be in a box. Carefully un-band the components.

208.Attach left and right rear hitch arms, rear hitch truss , rear truss support to center frame using 5/8 x 1 1/2 bolts , 5/8 x 3 1/32 x 5 1/2 u-bolts , secure with 5/8 lock washers and 5/8 nuts.

Note: Do not tighten any bolts until every thing is in-

stalled.

209.Now install the rear hitch frame using 5/8 x 1 1/2 bolts , 5/8 x 4 1/32 x 4 1/4 u-bolts , secure with 5/8 lock washers and 5/8 nuts.

210.The bolt on sleeve assembly with rigid or ﬂex slide

may be fastened using 5/8 x 3 1/32 x 4 1/2 u-bolt

9 10

, secure with 5/8 lock washers and 5/8 nuts.

211. Tighten all bolts to specs, See “Torque Values Chart” on page 43.

212.If machine is equipped with optional rear hitch accessory kit may be installed as shown in “Parts Manual”.

213.Route hoses and light harness along hitch and frame with hose clamps and hose wraps, provided.

Note: Be sure hoses and light harness is fastened se-

curely so they don’t drag or get pinched.

2 1

4 5

6 7

6 8

Figure 45

Rear Hitch

41423

Completing Setup

214.If the Discovator is equipped with an optional ﬁnishing attachment, refer to “Parts Manual” for parts breakdown.

215.Once the options are installed, fold the Discovator to check for clearance and interferences. Slowly fold Discovator while watching that hoses and wiring harnesses do not become pinched or kinked while watching for interferences.

Note: Double check that all bolts are tightened to specs,

See “Torque Values Chart” on page 43.Consult the operating instructions, “Operator’s Manual”, for the ﬁrst time ﬁeld adjustments before going to the ﬁeld.

550-353Q-ENG 02/12/2014

Page 47

Great Plains Manufacturing, Inc. 43

Appendix

Torque Values Chart

Bolt

Size

in-tpi

⁄4-20

⁄4-28

⁄16-18

⁄16-24

⁄8-16

⁄8-24

⁄16-14

⁄16-20

⁄2-13

⁄2-20

⁄16-12

⁄16-18

⁄8-11

⁄8-18

⁄4-10

⁄4-16

⁄8-9

⁄8-14

1-8

1-12

⁄8-7

⁄8-12

⁄4-7

⁄4-12

⁄8-6

⁄8-12

⁄2-6

⁄2-12

Bolt Head Identiﬁcation

Grade 2 Grade 5 Grade 8 Class 5.8 Class 8.8 Class 10.9

N-m

ft-lb

7.4 11 16

8.5 13 18

15 24 33

17 26 37

27 42 59

31 47 67

43 67 95

49 75 105

66 105 145

75 115 165

95 150 210

105 165 235

130 205 285

150 230 325

235 360 510

260 405 570

225 585 820

250 640 905

340 875 1230

370 955 1350

480 1080 1750

540 1210 1960

680 1520 2460

750 1680 2730

890 1990 3230

1010 2270 3680

1180 2640 4290

1330 2970 4820

N-m N-m

5.6 8 12

61014 5 811

11 17 25 12 19 27

13 19 27 13 21 29

20 31 44 24 39 53

22 35 49 29 45 62

32 49 70 42 67 93

36 55 78 44 70 97

49 76 105 66 77 105

55 85 120 68 105 150

70 110 155 73 115 160

79 120 170 105 165 230

97 150 210 115 180 245

110 170 240 145 230 300

170 265 375 165 260 355

190 295 420 205 325 450

165 430 605 230 480 665

185 475 670 355 560 780

250 645 910 390 610 845

275 705 995 705 1120 1550

355 795 1290 785 1240 1710

395 890 1440 1270 1950 2700

500 1120 1820 1380 2190 3220

555 1240 2010

655 1470 2380

745 1670 2710

870 1950 3160

980 2190 3560

Bolt Head Identiﬁcation

Bolt Size

ft-lb ft-lb ft-lb ft-lb ft-lb

mm x pitch

M 5 X 0.8

M 6 X 1

M 8 X 1.25

M 8 X 1

M10 X 1.5

M10 X 0.75

M12 X 1.75

M12 X 1.5

M12 X 1

M14 X 2

M14 X 1.5

M16 X 2

M16 X 1.5

M18 X 2.5

M18 X 1.5

M20 X 2.5

M20 X 1.5

M24 X 3

M24 X 2

M30 X 3.5

M30 X 2

M36 X 3.5

M36 X 2

a. in-tpi = nominal thread diameter in inches-threads per inch

b. N· m = newton-meters

c. mm x pitch = nominal thread diameter in mm x thread pitch

d. ft-lb = foot pounds

5.8 8.8 10.9

N-m N-m N-m

357

71115

17 26 36

18 28 39

33 52 72

39 61 85

58 91 125

60 95 130

90 105 145

92 145 200

99 155 215

145 225 315

155 240 335

195 310 405

220 350 485

280 440 610

310 650 900

480 760 1050

525 830 1150

960 1510 2100

1060 1680 2320

1730 2650 3660

1880 2960 4100

946

Torque tolerance + 0%, -15% of torquing values. Unless otherwise speciﬁed use torque values listed above.

25199m

25199

Disc or Coulter Gang Bolt Torque 1 1/2”-6 650-750 Foot-pounds (175 lbs on 4’ cheater).

02/12/2014 550-353Q-ENG

Page 48

44 8321-8552DV Great Plains Manufacturing, Inc.

Tire Inﬂation and Warranty

Tire Inﬂation Chart

Wheel Tire Size Inﬂation

Gauge

Wheel

Gauge

Wheel

Transport/

Wings

Transport/

Center

Transport/

Center

Transport/

Center

Transport/

Center

6.70L-15” 4-ply

7.50x10” 10-ply

9.5L-15” 8-Ply

11L x 15SL 12-Ply

11L x 15” Load F

12.5L x Load F

12.5L x 16.5” Load G Galaxy

32psi

(221 kPa)

80 psi

(552 kPa)

44psi

(303 kPa)

52 psi

(359 kPa)

90psi

(621 kPa)

90 psi

(621 kPa)

105 psi

(724 kPa)

Tire Warranty Information

All tires are warranted by the original manufacturer of the tire. Tire warranty information is found in the brochures included with your Operator’s and Parts Manuals or online at the manufacturer’s web sites listed below. For assistance or information, contact your nearest Authorized Farm Tire Retailer.

Manufacturer Web site Firestone www.ﬁrestoneag.com Gleason www.gleasonwheel.com Titan www.titan-intl.com

550-353Q-ENG 02/12/2014

Page 49

Great Plains Manufacturing, Inc. Appendix 45

Hydraulic Connectors and Torque

Refer to Figure 46 (a hypothetical ﬁtting)

Leave any protective caps in place until immediately prior to making a connection.

NPT - National Pipe Thread Note tapered threads, no cone/ﬂare, and no O-ring.

Apply liquid pipe sealant for hydraulic applications. Do not use tape sealant, which can clog a ﬁlter and/or plug an oriﬁce.

JIC - Joint Industry Conference (SAE J514) Note straight threads and the 37° cone on “M” ﬁttings (or 37° ﬂare on “F” ﬁttings).

Use no sealants (tape or liquid) on JIC ﬁttings.

ORB - O-Ring Boss (SAE J514) Note straight threads and elastomer O-Ring .

Prior to installation, to prevent abrasion during tightening, lubricate O-Ring with clean hydraulic ﬂuid. Use no sealants (tape or liquid) on ORB ﬁttings.

ORB ﬁttings that need orientation, such as the ell depicted, also have a washer and jam nut (“adjustable thread port stud”). Back jam nut away from washer. Thread ﬁtting into receptacle until O-Ring contacts seat. Unscrew ﬁtting to desired orientation. Tighten jam nut to torque speciﬁcation.

4 5

5 7

8 9

Dash

Size

-4

-5

-6

-8

Figure 46

Hydraulic Connector ID

Fittings Torque Values

Fitting N-m Ft-Lbs

⁄4-18 NPT 1.5-3.0 turns past ﬁnger

tight

⁄2-20 JIC 19-20 14-15

⁄2-20 ORB w/jam nut 12-16 9-12

⁄2 -20 ORB straight 19-26 14-19

⁄16-18 JIC 24-27 18-20

⁄16-18 ORB w/jam nut 16-22 12-16

⁄16-18 ORB straight 24-33 18-24

⁄4 -16 JIC 37-53 27-39

⁄4 -16 ORB w/jam nut 27-41 20-30

⁄4-16 ORB straight 37-58 27-43

42905

02/12/2014 550-353Q-ENG

Page 100

96 8321-8552DV Great Plains Manufacturing, Inc.

8333DV HD 3 Bar Spike W/Reel

42906

550-353Q-ENG 02/12/2014