Great Plains PFH-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
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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
PH-15, PH-20, PFH-15 and PFH-20 Coulter Command System 148-384M 6/21/2004
Important Safety Information . . . . . . . . . . . . .1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Description of Unit . . . . . . . . . . . . . . . . . . . .4
Using This Manual . . . . . . . . . . . . . . . . . . . .4
Definitions . . . . . . . . . . . . . . . . . . . . . . .4
Owner Assistance . . . . . . . . . . . . . . . . . . . .4
Section 1 Assembly and Setup. . . . . . . . . . . .5
Prestart Checklist . . . . . . . . . . . . . . . . . . . .5
Depth Sensing Wheel . . . . . . . . . . . . . . . . .5
Sensor Box . . . . . . . . . . . . . . . . . . . . . .6
Gauge Wheel Lift Cylinder . . . . . . . . . .7
Speed Sensor . . . . . . . . . . . . . . . . . . . .7
Lift Switch . . . . . . . . . . . . . . . . . . . . . . .8
Wiring Harness . . . . . . . . . . . . . . . . . . .8
Tongue Cylinder . . . . . . . . . . . . . . . . . .9
Hydraulic Control Valve . . . . . . . . . . . .10
Hydraulic Connections . . . . . . . . . . . .11
Control Box . . . . . . . . . . . . . . . . . . . . .12
Sensor Box Adjustments . . . . . . . . . . . . . .13
Section 2 Operating Instructions . . . . . . . . .14
Load Sensing Hydraulics . . . . . . . . . . . . . 14
Hydraulic Hook-Up & Function . . . . . . . . . 14
Operation of Electronic Controls. . . . . . . . 15
Field Adjustments . . . . . . . . . . . . . . . . . . . 16
Lift Switch. . . . . . . . . . . . . . . . . . . . . . 16
Speed Sensor . . . . . . . . . . . . . . . . . . 17
Hydraulic Valve . . . . . . . . . . . . . . . . . 17
Section 3 Troubleshooting . . . . . . . . . . . . . . 18
System Schematics . . . . . . . . . . . . . . . . . 20
Hydraulic Schematic . . . . . . . . . . . . . 20
Electrical Schematic. . . . . . . . . . . . . . 21
Section 4 Maintenance & Lubrication . . . . . 22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . 22
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . 22
Depth Sensing Arm Wheel Pivot . . . . . . . 22
Axle Bearings . . . . . . . . . . . . . . . . . . . . . . 22
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Torque Values Chart. . . . . . . . . . . . . . . . . 23