DuraTech Industries Haybuster GP-50 Parts list manual

PO BOx 1940, JamestOwn, nD 58402-1940
NOVEMBER 2014 0500136
TM
GP-50
GRAIN
PROCESSOR
Operating Instructions
and Parts Reference

A Tradition of Innovation Since 1966

GP-50
GRAIN
PROCESSOR
Operating Instructions
and Parts Reference
TM
DuraTech Industries International Inc. (DuraTech Industries) has made every effort to assure
that this manual completely and accurately describes the operation and maintenance of the
GP-50 Grain Processor as of the date of publication. DuraTech Industries reserves the right to
make updates to the machine from time to time. Even in the event of such updates, you should
still nd this manual to be appropriate for the safe operation and maintenance of your unit.
This manual, as well as materials provided by component suppliers to DuraTech Industries are
all considered to be part of the information package. Every operator is required to read and
understand these manuals, and they should be located within easy access for periodic review.
& are registered trademarks of Duratech Industries
International, Inc. Haybuster, GP-50 are trademarks of Duratech Industries International, Inc.

A Tradition of Innovation Since 1966

i
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
FOREWORD
Foreword
All personnel must read and understand the following sections before operating the
GP-50 Grain Processor.
•Foreword and Section 1, important safety information.
•Section 2, “Machine operation,” which explains normal operation of the
machine.
•Section 2.1, “Pre-Operation Inspection”.
Appropriate use of unit
The GP-50 Grain Processor is designed to grind material into more palatable or
manageable rations for your operation. It has multiple uses:
1. Grind most types of grain
•Ear corn
•Shell corn
•High moisture corn
•Most small grains
2. Grind various sizes
• Screens are available from 1/8” to 8”
• Combine screen sizes to get desired cut

ii GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
Operator protection
As with all machinery, care needs to be taken in order to insure the safety of the
operator and those in the surrounding area.
WARNING: The OPERATOR IS RESPONSIBLE for the safety of the
operator and those in the surrounding area. Operators and those observing the
operation of the GP-50 Grain Processor are required to wear head, eye, and ear
protection, No loose clothing is allowed.

iii
TABLE OF CONTENTS
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
Part 1: Operating Instructions ........................................1
Introduction ................................................................................. 2
Purpose ....................................................................................... 2
Section 1: Safety......................................................................... 4
1.1 Safety-alert symbols.......................................................................................... 4
1.2 Operator - personal equipment.......................................................................... 6
1.3 Machine safety labels ........................................................................................ 7
1.4 Thrown objects and operator safety ................................................................ 11
1.5 Shielding.......................................................................................................... 12
1.6 Personal protection equipment ........................................................................ 12
1.7 Safety Review ................................................................................................. 13
1.8 Fire Prevention ................................................................................................ 15
1.9 Fire Extinguishers: .......................................................................................... 15
1.10 Towing .......................................................................................................... 16
1.11 Service and maintenance ............................................................................... 17
Section 2: Operation .................................................................. 18
2.1 Pre-Operating Inspection.................................................................................. 18
2.2 Introduction to the machine .......................................................................... 19
2.2.1 Description of the GP-50 Grain Processor.................................................... 19
2.2.2 Overview of Operator’s Controls.................................................................. 20
2.2.3 Rotor.............................................................................................................. 20
2.2.4 Screens .......................................................................................................... 20
2.2.7 Conveyor lifting and folding ......................................................................... 21
2.2.5 Hopper........................................................................................................... 21
2.2.6 Hydraulic Tilt Platform ................................................................................. 21
2.2.8 Auger ............................................................................................................. 22
2.2.9 Conveyor ....................................................................................................... 22
2.2.10 Large Hopper (option)................................................................................. 22
2.3 Machine Operation ........................................................................................ 23
2.3.1 Tractor Set Up ............................................................................................... 23
2.3.2 How to hook up to tractor ............................................................................. 24
2.3.3 How to disconnect from tractor..................................................................... 24
2.3.4 How to operate machine as a unit ................................................................. 24
2.4 Shutdown procedure ...................................................................................... 25

iv GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
TABLE OF CONTENTS
2.4.1 Normal shutdown procedure ......................................................................... 25
2.4.2 Emergency shutdown procedure ................................................................... 25
2.5 Storage............................................................................................................. 26
2.5.1 Preparing for storage ..................................................................................... 26
2.5.2 Removing from storage................................................................................. 26
2.6 Road Transport............................................................................................... 26
2.6.1 Set up to transport ......................................................................................... 26
2.7 Raising the Hopper Platform............................................................................ 27
2.8 Installing screens .............................................................................................. 28
2.9 Adjusting the conveyor belt tension ................................................................. 29
2.10 Adjusting the conveyor belt tracking ............................................................ 29
2.11 Main drive belt adjustment............................................................................ 30
Section 3: General Maintenance ............................................... 31
3.1 Lubrication ................................................................................................ 32
3.2 Hydraulic system....................................................................................... 39
3.4 Hammermill maintenance ......................................................................... 40
3.5 Hammer maintenance and replacement .................................................... 41
Section 4: Troubleshooting the GP-50 Grain Processor .......... 43
Appendix A: Warranty ............................................................... 44
Appendix B: GP-50 GRAIN PROCESSOR Specications ........... 45
Appendix C: Required for operation ......................................... 46
Notes .......................................................................................... 47

v
TABLE OF CONTENTS
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
Part 2: Parts Reference .................................................49
MAIN FRAME ASSEMBLY THRU S.N. 0101 .................................................... 50
MAIN FRAME ASSEMBLY THRU S.N. 0101 - DETAILS A & B .................... 52
MAIN FRAME ASSEMBLY THRU S.N. 0101 - DETAILS C & D..................... 54
MAIN FRAME ASSEMBLY THRU S.N. 0101 - DETAILS E & F ..................... 56
MAIN FRAME ASSEMBLY S.N. 0102 & UP ..................................................... 58
MAIN FRAME ASSEMBLY S.N. 0102 & UP - DETAILS A & B....................... 60
MAIN FRAME ASSEMBLY S.N. 0102 & UP - DETAILS C & D ...................... 62
MAIN FRAME ASSEMBLY S.N. 0102 & UP - DETAILS E & F ....................... 64
BULLWHEEL ASSEMBLY .................................................................................. 66
BELLY AUGER ASSEMBLY - REAR ................................................................. 68
BELLY AUGER ASSEMBLY - FRONT ............................................................... 70
GREASE LINES S.N. 0102 & UP......................................................................... 72
ROTOR ASSEMBLY (S.N. UP TO GP50IJ0071)................................................. 74
ROTOR ASSEMBLY (S.N. GP50IJ0072 & UP)................................................... 76
LOWER DISCHARGE ASSEMBLY .................................................................... 78
UPPER DISCHARGE ASSEMBLY...................................................................... 80
AUGER ASSEMBLY THRU S.N. 0101................................................................ 82
AUGER ASSEMBLY S.N. 0102 & UP ................................................................. 84
SMALL HOPPER ASSEMBLY............................................................................. 86
LARGE HOPPER ASSEMBLY............................................................................. 88
OIL TANK ASSEMBLY THRU S.N. 0101 ........................................................... 90
OIL TANK ASSEMBLY S.N. 0102 & UP............................................................. 92
P.T.O. ASSEMBLY (WITH PLASTIC GUARDS) (THRU S.N. 0101) ................ 94
P.T.O. ASSEMBLY 3600562 (S.N. 0102 & UP).................................................... 96
P.T.O. ASSEMBLY 3600816 (S.N. 0102 & UP).................................................... 97
HYDRAULIC CYLINDER SEALS AND OTHER ITEMS ................................. 98
GP-50 HYDRAULICS......................................................................................... 100
GP-50 AUGER OPTION HYDRAULICS .......................................................... 101
HYDRAULIC TANK AND TANDEM PUMP THRU S.N. 0101....................... 102
HYDRAULIC TANK AND TANDEM PUMP S.N. 0102 & UP......................... 104
CONVEYOR FLOW CONTROL AND ORBIT MOTOR.................................. 106
HYDRAULIC VALVE TO DIVIDER BLOCK................................................... 108
LIFT AND FOLD HYDRAULICS...................................................................... 110
HOPPER TILT HYDRAULICS........................................................................... 112
AUGER FLOW CONTROL AND TANDEM PUMP ......................................... 114
AUGER ORBIT MOTOR TOP............................................................................ 116
AUGER HYDRAULICS - DETAIL H ................................................................ 118

vi GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
BOTTOM AUGER HYDRAULICS - DETAIL I ................................................ 120
CONVEYOR MOTOR HYDRAULIC SCHEMATIC ........................................ 122
CONVEYOR AND AUGER MOTOR HYDRAULIC SCHEMATIC ................ 123
CONVEYOR CYLINDERS HYDRAULIC SCHEMATIC ................................ 124
HOPPER TILT CYLINDER HYDRAULIC SCHEMATIC ................................ 125
TAIL LIGHTS AND SMV................................................................................... 126
TAIL LIGHT SCHEMATIC................................................................................. 129
DECALS .............................................................................................................. 130
DECAL LOCATIONS ......................................................................................... 132
GP-50 GRAIN PROCESSOR DOCUMENTATION COMMENT FORM ......135

GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS 1
GP-50
GRAIN
PROCESSOR
Part 1:
Operating Instructions
TM

2GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
Introduction
The GP-50 Grain Processor is designed to grind material into more palatable or manageable rations for your operation.
It has multiple uses:
1. Grind most types of grain
•Shell corn
•High moisture corn
•Most small grains
2. Grind various sizes
• Screens are available from 1/8” to 8”
• Combine screen sizes to get desired cut
To avoid possible damage to the machine and risk of injury to the operator, consult with a DuraTech Industries
International, Inc. (DuraTech Industries) representative before attempting to process materials other than grain.
Purpose
The purpose of this owner’s manual is to explain maintenance requirements and routine adjustments for the most
efcient operation of your GP-50 Grain Processor. There is also a trouble shooting section that may help in case of
problems in the eld. Any information not covered in this manual may be obtained from your dealer.
Special Note: When reference is made as to front, rear, left hand, or right hand of this machine, the
reference is always made from standing at the rear end of the machine and looking toward the hitch.
Always use serial number and model number when referring to parts or problems. Please obtain your
serial number and write it below for your future reference.
MODEL: GP-50 Grain Processor SERIAL NO. _______________________
How to use this manual
Manual organization
This manual is organized into the following parts:
• Part 1: Operating Instructions
• Section 1: Safety decals, safety instructions and information
• Section 2: Tells how to use the GP-50 Grain Processor.

3
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
• Section 3: Describes how to maintain the GP-50 Grain Processor.
• Section 4: Tells how to troubleshoot GP-50 Grain Processor.
• Part 2: Part’s reference contains diagrams of each assembly, with the part number of each part. A key on
the same or facing page contains a description of the part and the quantity used.
Dealer responsibilities
•Upon delivery of the unit to the customer, it is your responsibility to conduct a training session on the safe
operation of the unit for the primary operator(s). You must also conduct a “walk-around” inspection of all
safety instructional decals on the machine itself. Decals are illustrated in Part 2: Parts Reference.
•Complete and return the Warranty Registration postcard. DuraTech Industries must receive this form
before activating the warranty. Appendix A provides details of the warranty.
Operator responsibilities
• Note the important safety information in the Foreword and in Section 1, “Safety.”
•Thoroughly review sections 1 and 2, which explain normal operation of the machine, and section 3, which
explains maintenance requirements. These sections will function as your textbook during the dealer-
conducted training course that is required before you can use the unit.
•Manuals for certain allied supplier’s components are provided separately. You should also be familiar
with their contents.
•Keep copies of all manuals in a readily accessible location for future reference.

4GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
Section 1: Safety
The safety of the operator is of great importance to DuraTech Industries/Haybuster. We have provided decals, shield
and other safety features to aid you in using your machine safely. In addition, we ask you to be a careful operator who
will properly use and service your Haybuster equipment.
WARNING: FAILURE TO COMPLY WITH SAFETY INSTRUCTIONS THAT FOLLOW
WITHIN THIS MANUAL COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH.
BEFORE ATTEMPTING TO OPERATE THIS MACHINE, CAREFULLY READ ALL
INSTRUCTIONS CONTAINED WITHIN THIS MANUAL. ALSO READ THE INSTRUCTION
MANUAL PROVIDED WITH YOUR TRACTOR.
THIS MACHINE IS NOT TO BE USED FOR ANY PURPOSE OTHER THAN THOSE
EXPLAINED IN THE OPERATOR’S MANUAL, ADVERTISING LITERATURE OR OTHER
DURATECH INDUSTRIES WRITTEN MATERIAL PERTAINING TO THE GP-50 GRAIN
PROCESSOR
1.1 Safety-alert symbols
Decals are illustrated in Part 2: Parts Reference.
The safety decals located on your machine contain important and useful information that will help you operate your
equipment safely.
To assure that all decals remain in place and in good condition, follow the instructions below:
• Keep decals clean. Use soap and water - not mineral spirits, adhesive cleaners and other similar cleaners
that will damage the decal.
• Replace all damaged or missing decals. When attaching decals, surface temperature of the machine must
be at least 40° F (5° C). The surface must be also be clean and dry.
• When replacing a machine component to which a decal is attached, be sure to also replace the decal.
• Replacement decals can be purchased from your Haybuster dealer.

5
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
DuraTech Industries uses industry accepted ANSI standards in labeling its products for safety and operational
characteristics.
DANGER: Indicates an imminently
hazardous situation that, if not avoided, will
result in death or serious injury. This signal
word is to be limited to the most extreme
situations, typically for machine components
that, for functional purposes, cannot be
guarded.
WARNING: Indicates a potentially hazardous
situation that, 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 that, if not avoided, may result in
minor or moderate injury. It may also be used
to alert against unsafe practices.
Safety-Alert Symbol
Read and recognize safety information. Be alert to
the potential for personal injury when you see this
safety-alert symbol.
This manual uses the symbols to the right to denote
important safety instructions and information.
The DANGER, WARNING and CAUTION symbols
are used to denote conditions as stated in the text above.
Furthermore, the text dealing with these situations is
surrounded by a box with a white background, will begin
with DANGER, WARNING, or CAUTION.
The INFORMATION symbol is used to denote important
information or notes in regards to maintenance and use of
the machine. The text for this information is surrounded
by a box with a light grey background, and will begin with
either IMPORTANT or NOTE.
DANGER
INFORMATION
CAUTION
WARNING

6GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
1.2 Operator - personal equipment
THE OPERATOR
Physical Condition
You must be in good physical condition and mental health and not under the inuence of any substance (drugs, alcohol)
which might impair vision, dexterity or judgment.
Do not operate a GP-50 Grain Processor when you are fatigued. Be alert - If you get tired while operating your GP-
50 Grain Processor, take a break. Fatigue may result in loss of control. Working with any farm equipment can be
strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before
operating
Proper Clothing
Clothing must be sturdy and snug-tting, but allow complete freedom
of movement. Avoid loosetting jackets, scarfs, neckties, jewelry, ared
or cuffed pants, unconned long hair or anything that could become
entangled with the machine.
Protect your hands with gloves when handling hammers, screens, etc.. .
Heavy-duty, nonslip gloves improve your grip and protect your hands.
Good footing is most important. Wear sturdy boots with nonslip soles.
Steel-toed safety boots are recommended.
To reduce the risk of injury to your eyes never operate a GP-50 Grain
Processor.unless wearing goggles or properly tted safety glasses with
adequate top and side protection.
Tractor noise may damage your hearing. Always wear sound barriers (ear
plugs or ear mufers) to protect your hearing. Continual and regular users
should have their hearing checked regularly.

7
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
1.3 Machine safety labels
The safety decals located on your machine contain important information that will help you operate your equipment.
Become familiar with the decals and their locations.
DANGER: ROTATING PARTS WITHIN CAN KILL OR
DISMEMBER. WAIT FOR ALL MOVEMENT TO STOP
BEFORE SERVICING, UNLOADING, OR INSPECTING
MACHINE.
DANGER: ROTATING DRIVELINE, CONTACT CAN
CAUSE DEATH, KEEP AWAY!
DO NOT OPERATE WITHOUT
• ALL DRIVELINE GUARDS, TRACTOR AND
EQUIPMENT SHIELDS IN PLACE
• DRIVELINES SECURELY ATTACHED AT BOTH
ENDS
• DRIVELINE GUARDS THAT TURN FREELY ON
DRIVELINE
DANGER: OBJECTS THROWN BY MACHINE
DO NOT OPERATE GRINDER WITH THE PLATFORM IN
THE RAISED POSITION
WARNING: FOR YOUR PROTECTION KEEP ALL
SHIELDS IN PLACE AND SECURED WHILE MACHINE
IS OPERATING MOVING PARTS WITHIN CAN CAUSE
SEVERE PERSONAL INJURY.
6500085
6500040
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8GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
WARNING: FOR YOUR PROTECTION AND
PROTECTION OF OTHERS, PRACTICE THE
FOLLOWING SAFETY RULES.
1. BEFORE OPERATING THIS MACHINE, READ THE
OPERATOR’S MANUALS SUPPLIED WITH THIS
MACHINE AND YOUR TRACTOR.
2. CHECK OPERATORS MANUALS TO BE SURE
YOUR TRACTOR MEETS THE MINIMUM
REQUIREMENTS FOR THIS MACHINE.
3. READ ALL DECALS PLACED ON THIS MACHINE
FOR YOUR SAFETY AND CONVENIENCE.
4. NEVER ALLOW RIDERS ON THIS IMPLEMENT OR
THE TRACTOR.
5. KEEP OTHERS AWAY FROM THIS MACHINE
WHILE IN OPERATION.
6. KEEP ALL SHIELDS IN PLACE WHILE MACHINE IS
OPERATING.
7. KEEP HANDS, FEET, LOOSE CLOTHING, ETC.,
AWAY FROM POWER DRIVEN PARTS.
8. ALWAYS SHUT OFF MACHINE AND ENGINE
BEFORE SERVICING, UNCLOGGING,
INSPECTING, OR WORKING NEAR THIS MACHINE
FOR ANY REASON. ALWAYS PLACE
TRANSMISSION IN PARK OR SET PARK BRAKE
AND WAIT FOR ALL MOVEMENT TO STOP
BEFORE APPROACHING THIS MACHINE.
WARNING: NO RIDERS
SERIOUS INJURY COULD RESULT FROM RIDING ON
THE MACHINE.
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9
GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
WARNING: THROWN OBJECT HAZARD
TO PREVENT SERIOUS INJURY OR DEATH DO NOT
RAISE TUB WHEN ROTOR IS TURNING.
1. DISENGAGE ROTOR AND ALLOW TO COME TO A
COMPLETE STOP.
2. BE CERTAIN THAT ALL PERSONNEL ARE CLEAR
OF MACHINERY AREA.
3. RAISE TUB TO FULL VERTICAL POSITION.
4. STOP ENGINE AND REMOVE KEY BEFORE
APPROACHING TUB AND ROTOR AREA.
WARNING: OVERHEAD CONVEYOR HAZARD
TO PREVENT SERIOUS INJURY OR DEATH:
DO NOT WALK UNDER CONVEYOR AT ANY TIME.
STAY CLEAR OF CONVEYOR DURING OPERATION,
RAISING, AND LOWERING. LOWER CONVEYOR
FULLY BEFORE SERVICING.
KEEP OTHERS AWAY.
WARNING: HIGH-PRESSURE FLUID HAZARD, TO
PREVENT SERIOUS INJURY OR DEATH:
• RELIEVE PRESSURE ON SYSTEM BEFORE
REPAIRING OR ADJUSTING OR DISCONNECTING.
• WEAR PROPER HAND AND EYE PROTECTION
WHEN SEARCHING FOR LEAKS. USE WOOD OR
CARDBOARD INSTEAD OF HANDS.
• KEEP ALL COMPONENTS IN GOOD REPAIR.
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10 GP-50 GRAIN PROCESSOR OPERATING INSTRUCTIONS
CAUTION: KEEP WHEEL BOLTS TIGHT.
CAUTION: ADJUST TRACTOR DRAWBAR SO THAT
THE DISTANCE FROM THE END OF THE P.T.O.
SHAFT ON THE TRACTOR TO THE CENTER OF THE
DRAWBAR HITCH PIN IS 16”.
6500042
6500057