Great Plains CPH-20 Operator Manual - Manual (Page 2)

Table of Contents
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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 informa-
tion 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
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Table of Contents
CPH Center Pivot Hitch 148-152M 12/29/2011
Important Safety Information . . . . . . . . . . . . . . . . . . 1
Safety Decals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description of Unit . . . . . . . . . . . . . . . . . . . . . . . . . 6
Intended Usage. . . . . . . . . . . . . . . . . . . . . . . . 6
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . 6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . 6
Section 1 Preparation and Setup . . . . . . . . . . . . . . . 7
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hitching Tractor to Hitch . . . . . . . . . . . . . . . . . . . . 7
Hitching Drill to Hitch . . . . . . . . . . . . . . . . . . . . . . . 8
Hydraulic Hose Hookup . . . . . . . . . . . . . . . . . . . . . 8
Bleeding the Hydraulics . . . . . . . . . . . . . . . . . . . . . 9
Bleeding Tongue Cylinder . . . . . . . . . . . . . . . . 9
Bleeding Transport Lift Cylinders . . . . . . . . . 10
Section 2 Operating Instructions . . . . . . . . . . . . . . 11
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . 11
Field Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pivot Lock Tubes . . . . . . . . . . . . . . . . . . . . . . 11
Transporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Section 3 Adjustments . . . . . . . . . . . . . . . . . . . . . . 13
Coulter Down Pressure . . . . . . . . . . . . . . . . . . . . 13
Added Weight . . . . . . . . . . . . . . . . . . . . . . . . 13
Coulter Springs . . . . . . . . . . . . . . . . . . . . . . . 13
Seeding Depth. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Coulter Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hydraulic Control. . . . . . . . . . . . . . . . . . . . . . 13
Coulter Mounting Height . . . . . . . . . . . . . . . . 14
Lock Plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Conventional Tillage, Very Soft Soils . . . . . . . . . 14
Level Link Adjustment . . . . . . . . . . . . . . . . . . . . 15
Leaf Spring Adjustment . . . . . . . . . . . . . . . . . . . 15
Pivot Lock Tube Adjustment . . . . . . . . . . . . . . . . 15
Transport Cylinder Support Brace . . . . . . . . . . . 16
Section 4 Troubleshooting . . . . . . . . . . . . . . . . . . . 17
Section 5 Maintenance and Lubrication . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Slide Block . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Front Tongue to Main Frame Pivot . . . . . . . . 19
Top and Bottom Vertical Pivot Bushings . . . 19
Level Link Pivot Tube . . . . . . . . . . . . . . . . . . 19
Transport Hub Wheel Bearings . . . . . . . . . . 20
Coulter Hub Bearings. . . . . . . . . . . . . . . . . . 20
Coulter Swing Arm Pivot . . . . . . . . . . . . . . . 20
Section 6 Options . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Coulter Toolbar Weight Brackets . . . . . . . . . . . . 21
Coulter Toolbar Brace. . . . . . . . . . . . . . . . . . . . . 21
Depth Channels and Cylinder Stops . . . . . . . . . 22
Clevis-Style Drawbar Adaptor. . . . . . . . . . . . . . . 22
Section 7 Specifications and Capacities . . . . . . . 23
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . . 24
Torque Values Chart for Common Bolt Sizes . . . 24
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25