Great Plains PTO Kits Single-Section User Manual

Table of Contents Index
Operating, Maintenance
and Installation Instructions
411-163A, 411-164A, 411-165A, 411-166A, 411-167A and 411-168A
PTO Pump Accessory for Single-Section
Air-Pro
®
Planters and Fan Update Kit
Manufacturing, Inc.
www.greatplainsmfg.com
Read the installation 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!
CAUTION
818-130C Rev. B
To avoid Injury or Machine Damage: *Operate only with 540 rpm PTO
34617
Cover illustration shows only selected components for one kit. Manual illustrations may show various Yield-Pro are identical for the immediate topic.
®
planter models and configurations where installation details
ORIGINAL INSTRUCTIONS
© Copyright 2014 Printed 2014-06-16 401-885M
EN
Table of Contents Index
Table of Contents Index
Table of Contents Index
Great Plains Manufacturing, Inc. Cover Index iii

Table of Contents

Important Safety Information ......................................1
PTO-Specific Hazards....................................................1
Using PTO Safely...........................................................2
Safety Decals .................................................................4
Introduction ..................................................................6
Description of Unit .......................................................... 6
Suitable Applications ..................................................6
Kits Covered...................................................................6
Related Documents........................................................6
Related Parts..................................................................6
20-Spline Coupler...................................................6
21-Spline Coupler...................................................6
Using This Manual..........................................................7
Definitions................................................................... 7
Call-Outs ....................................................................7
Owner Assistance ..........................................................7
PTO Operation .............................................................. 8
Tractor Requirements.....................................................8
540 rpm Tractor Requirements...................................8
540 rpm PTO Clearance.........................................8
1000 rpm Tractor Requirements.................................9
1000 rpm Type 2 PTO Clearance...........................9
1000 rpm Type 3 PTO Clearance.........................10
Hitching with PTO.........................................................11
Hitching with 540 rpm PTO.......................................11
Prepare Tractor ....................................................11
Mount Pump .........................................................11
Secure Pump........................................................11
Hitching with 1000 rpm PTO.....................................12
Install Coupler.......................................................12
Prepare Tractor ....................................................13
Mount Pump .........................................................13
Check Hydraulics .........................................................14
Check Oil Level ........................................................14
Inspect Hoses and Fittings .......................................14
Starting the Pump.........................................................15
About the Flow Control Valve.......................................16
Setting Meter Pressurization ........................................17
General Steps for all Kits.......................................... 17
Ground Drive Meter Pressure...................................18
Hydraulic Drive Meter Pressure................................19
PTO Unhitching ............................................................ 20
Dismount 540 rpm Pump.......................................... 20
Dismount 1000 rpm Pump........................................ 20
PTO Troubleshooting ................................................ 21
PTO Maintenance....................................................... 22
Oil and Filter Change ................................................... 22
Oil Fill ....................................................................... 22
Oil Specification ................................................... 22
Oil and Filter Change ............................................... 22
Lubrication and Scheduled Maintenance..................... 23
Appendix A - Installation........................................... 25
Before You Start .......................................................... 25
Compatible Planters..................................................... 25
One PTO pump kit is always required. Older planters
may also require a fan update kit. Each kit
updates one planter.......................................... 25
Fan Motor Compatibility ........................................... 25
Configuration Compatibility ...................................... 26
2025A/2525A Compatible Kits ................................. 26
YP425A Compatible Kits.......................................... 26
YP625A Compatible Kits.......................................... 26
YP825A/AR Compatible Kits.................................... 26
Other Single-Section Air-Pro® Implements .............. 26
Tools Required............................................................. 27
Call-Outs .................................................................. 27
Pre-Delivery and Other Options................................... 27
Prepare Planter............................................................ 27
Prepare Fan ................................................................. 28
Disconnect Existing Fan Hoses ............................... 28
Disconnect 2-Port Fan ......................................... 28
Disconnect 3-Port Fan ......................................... 29
Open Fan Screen..................................................... 29
Dismount or Relocate Sensor Bracket ..................... 30
Update Fan Motor .................................................... 31
Recover Motor Fittings ......................................... 31
Release Impeller ..................................................31
Dismount Fan....................................................... 32
Remove 3-Port Hydraulic Motor........................... 32
Mount 2-Port Hydraulic Motor ..............................33
Re-Mount Fan ......................................................33
Install New Impeller Bushing................................ 34
Install Motor Fittings and Loop ............................. 35
Re-Mount Fan Inlet Screen .................................. 35
Re-Install RPM Sensor Bracket ........................... 36
Install Fan Cooler......................................................... 37
Install Fan Cooler ..................................................... 37
Break Down Cooler Assembly ............................. 37
Install Cooler Shroud............................................ 37
© Copyright 2013, 2014 All rights Reserved
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.
2014-06-16 Cover Index 401-885M
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, Ver ti-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
iv Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.
Orient Cooler Elbows ........................................... 38
Re-Assemble Fan Cooler..................................... 38
Modify Fan Cage.................................................. 38
Attach Cooler Hoses & Close............................... 39
Reconnect Hitch Hoses ............................................... 40
Install Oil Reservoir...................................................... 41
Determine Reservoir Location.................................. 41
Reservoir on Row Unit Tool Bar............................... 42
Identify Row Location........................................... 42
Support Row Unit ................................................. 43
Mount Row Unit Reservoir ................................... 43
Reservoir on Fertilizer Sub-Frame........................... 44
Reservoir on Mainframe Truss................................. 45
Reservoir Under Main Seed Box.............................. 46
Reservoir on Tongue at Hitch .................................. 47
Install Flow Control Valve ............................................ 48
Determine Control Location ..................................... 48
Install Controls on Fan Mast .................................... 49
Install Controls on Fertilizer Frame .......................... 50
Install Controls on Upper Frame Tube..................... 51
Install Controls on Forward Tool Bar........................ 52
Install Hoses ................................................................ 54
General Hose Installation......................................... 54
401-845A and 411-163A Flow Control Hydraulics... 54
401-846A and 411-164A Flow Control Hydraulics....55
401-847A and 411-165A Flow Control Hydraulics....56
401-848A and 411-166A Flow Control Hydraulics....57
401-849A and 411-167A Flow Control Hydraulics....58
401-879A and 411-168A Flow Control Hydraulics....59
411-016A Flow Control Hydraulics ...........................60
Connect Hoses .....................................................60
411-035A and 411-036A Flow Control Hydraulics....61
411-037A and 411-038A Flow Control Hydraulics....62
Replace/Add Fittings.............................................63
Connect Remaining Hoses ...................................63
Charge and Test...........................................................64
Close-Out .....................................................................64
Appendix R - Reference .............................................65
Torque Values ..............................................................65
Hydraulic Fitting Torque............................................66
Connector Identification ........................................66
Abbreviations................................................................67
Parts Lists.....................................................................68
Kits and This Manual ................................................68
New Parts in Kits ......................................................68
Existing Parts Affected..............................................70
Index ............................................................................73
401-885M Table of Contents Index 2014-06-16
Great Plains Manufacturing, Inc. Table of Contents Index 1

Important Safety Information

PTO-Specific Hazards
Even if you are experienced in PTO operations, review the “Using PTO Safely” topic on page 2. Topics in this manual dealing with PTO hazards include this PTO alert symbol and the standard alert symbol below. PTO hazards include:
Entanglement:
resulting in abrasions, lacerations, crushing, dismemberment or death. Loose clothing, cuffs, frays, laces, coattails, drawstrings, hair or scarves are taken up by a PTO faster than you can react, and with overpowering torque.
Flailing machinery:
resulting from an unsecured torque arm, resulting in serious injury or death.
High pressure fluid sprays:
due to hydraulic hose failure, resulting from PTO shaft over-speed or damaged hoses.

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.
2014-06-16 Table of Contents Index 401-885M
2 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

Using PTO Safely

The accessories covered by this manual rely on PTO power to operate, and require an adjustment at the planter while the PTO is running. The PTO pump is designed to work on a stub shaft PTO, and leaves no exposed shaft in use.
Use only a tractor with an approved master shield for the
PTO.
Use all guards provided for the tractor PTO. Have minimal
or NO shaft exposed after connecting the PTO pump.
Use only a rear-facing PTO. The provided hoses and torque
arms are not designed for use with a tractor-front or tractor-side PTO.
Use only the correct (540 or 1000) rpm PTO, or an
adjustable PTO set to the correct rpm (maximum). Running at a higher speed could result in equipment failure, and serious injury.
Use only a PTO with the correct shaft, and for 1000 rpm,
matching Great Plains coupler:
3
1
⁄8inch (35 mm) 6-spline
13⁄4inch (44.5 mm) 20-spline and 826-777C coupler 13⁄8inch (35 mm) 21-spline and 826-778C coupler
Do not use any other adaptor, coupler, driveline, extender
or external gearbox.
Use only a “live” or “independent” PTO. If the PTO only
operates when the tractor is in motion, there is no safe way to set the fan speed.
Ensure that all involved personnel are trained on PTO
operations and hazards. Always know where all team members are before, during and after PTO operations.
Allow only essential personnel near the PTO during setup,
adjustment, operation and disconnection.
Prior to PTO setup, remove any stray wire, rope or twine
found nearby. Should a loose end encounter the PTO stub, it is taken up at up to 14 feet per second, and could wrap around someone and pull them in.
Wear only snug-fitting clothes, with no scarves, loose
strings, cords, ties, and no frays, when working near a PTO.
Tie long hair back or gather it up under a well-secured hat.
Shut the tractor off for PTO connections or disconnections.
Do not trust your life to clutches and throw-outs.
A PTO shaft is a hazard at any speed, even when well below
rated shaft rpm, coasting to a stop, or idling.
Never step on or over the master shield or installed PTO
pump.
Be extra vigilant if any tractor PTO controls are external,
and in proximity to the PTO.
Elevate pump hose slack so that ground contact is not
possible during transport or field operations.
Keep all PTO safety decals clean and legible. Replace any
that are faded or damaged.
CAUTION
To avoid Injury or Machine Damage:
*Operate only with
540 rpm PTO
818-130C Rev. B
6
CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
826-777C
818-240C Rev. A
20
CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
826-778C
818-240C Rev. A
21
401-885M Table of Contents Index 2014-06-16
Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 3

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.

Be Familiar with Safety Decals

Read and understand “Safety Decals” in the Operator
manual.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible
decals.

Avoid High Pressure Fluids

Observe normal precautions for hitch hydraulic connections and disconnections. Escaping fluid under pressure can penetrate the skin, causing serious injury.
Avoid the hazard by relieving pressure before disconnecting
hydraulic lines.
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.

Practice Safe Maintenance

Understand procedure before doing work. Use proper
tools and equipment. Refer to this manual for additional information.
Work in a clean, dry area.
Lower the planter, put tractor in park, turn off engine, and
remove key before performing maintenance.
Make sure all moving parts have stopped and all system
pressure is relieved.
Inspect all parts. Make sure parts are in good condition
and installed properly.
Remove buildup of grease, oil or debris.
Remove all tools and unused parts from planter before
operation.
2014-06-16 Table of Contents Index 401-885M
4 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

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 implement functions.
Operate machinery from the driver’s seat only.
Do not leave implement unattended with tractor engine
running.
Wear snug-fitting clothing to avoid entanglement with
moving parts.

Safety Decals

Safety Decals

Kit components are shipped with all safety decals in place. They are intended to help you safely operate your implement.
Read and follow decal directions.
Keep all safety decals clean and legible.
Replace all damaged or missing decals. Order new decals
from your Great Plains dealer. Refer to this section for proper decal placement.
When ordering new parts or components, also request
corresponding safety decals.
To install new decals:
1. Clean the area on which the decal is to be placed.
2. Peel backing from decal. Press firmly on surface, being careful not to cause air bubbles under decal.
Danger Decals 858-005C
DANGER
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and chain

Danger: Rotating Driveline

On chain plate of torque arm at pump, for pumps with wide plates, otherwise on front face of oil reservoir; 1 total

858-005C

ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
DO NOT OPERATE WITHOUT-
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
DANGER
KEEP AWAY!
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and chain
CAUTION
818-240C Rev. A
858-005C
CAUTION
818-130C Rev. B
To avoid Injury or Machine Damage: *Operate only with 540 rpm PTO
36313
34617
34843
WARNING
HOT FLUID HAZARD
Read Owner’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO to prevent damage to Hydraulic Motor Keep Radiator clean and free of foreign matter to prevent overheating. Do NOT operate with hydraulic oil at or above 180°F.
OIL FILL LINE
CAPACITY = 13.5 U.S. GALS
USE ANY HIGH QUALITY MINERAL BASED HYDRAULIC FLUID WITH A VISCOSITY RATING OF 10W-30. OIL MUST BE CLEAN AND FREE FROM DIRT OR CONTAMINANT PARTICLES TO PREVENT DAMAGE TO PUMP AND MOTOR. REPLACE FILTER ELEMENT AFTER EVERY
858-004C
150 OPERATING HOURS OR 2 YEARS SERVICE. LEVEL TOOLBAR BEFORE CHEKING OIL LEVEL
CAUTION
To avoid Injury or
858-029C
Machine Damage:
·Operate only with 1000 rpm PTO
DANGER
818-240C Rev. A
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and clamp
bolts properly torqued
858-030C
401-885M Table of Contents Index 2014-06-16
Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 5
Warning Decals 858-004C
WARNING
HOT FLUID HAZARD
Read Owner’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO to prevent damage to Hydraulic Motor Keep Radiator clean and free of foreign matter to prevent overheating. Do NOT operate with hydraulic oil at or above 180°F.

858-004C

Warning: Hot Fluid

On front face of oil reservoir; 1 total
34617
To avoid Injury or Machine Damage:
CAUTION
818-130C Rev. B
m PTO
erate only with
Caution Decals 818-130C
CAUTION
To avoid Injury or
Machine Damage:
*Operate only with
540 rpm PTO
818-130C Rev. B

Caution: 540 RPM PTO

On chain plate of torque arm at 540 rpm pump; 1 total (540 rpm kits only)

818-240C

CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO

Caution: 1000 RPM PTO

On chain plate of torque arm at pump, for pumps with wide plates, otherwise on front face of oil reservoir; 1 total (1000 rpm kits only)
818-240C Rev. A
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
DO NOT OPERATE WITHOUT-
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
DANGER
KEEP AWAY!
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and chain
CAUTION
818-240C Rev. A
858-005C
36313
34843
To avoid Injury or Machine Damage: *Operate only with 540 rpm PTO
CAUTION
818-130C Rev. B
34617
WARNING
HOT FLUID HAZARD
Read Owner’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO to prevent damage to Hydraulic Motor Keep Radiator clean and free of foreign matter to prevent overheating.
OIL FILL LINE
Do NOT operate with hydraulic oil at or above 180°F.
CAPACITY = 13.5 U.S. GALS
USE ANY HIGH QUALITY MINERAL BASED HYDRAULIC FLUID WITH A VISCOSITY RATING OF 10W-30. OIL MUST BE CLEAN AND FREE FROM DIRT OR CONTAMINANT PARTICLES TO PREVENT DAMAGE TO PUMP AND MOTOR. REPLACE FILTER ELEMENT AFTER EVERY
858-004C
150 OPERATING HOURS OR 2 YEARS SERVICE. LEVEL TOOLBAR BEFORE CHEKING OIL LEVEL
CAUTION
To avoid Injury or
858-029C
Machine Damage:
·Operate only with 1000 rpm PTO
DANGER
818-240C Rev. A
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and clamp
bolts properly torqued
858-030C
2014-06-16 Table of Contents Index 401-885M
6 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

Introduction

Description of Unit

One of 17 dealer- or field-installed kits convert the hydraulic fan power source from tractor hydraulic remote to tractor Power Take-Off (PTO). An additional kit updates older fan motors for PTO compatibility.
Refer to Figure 1
Each Single-Section PTO Pumps kit includes:
• a flow control valve assembly for setting fan rpm,
• a tethered 540 or 1000 rpm PTO pump , with torque
1
2
arm and safety chain (no gearbox is required; a coupler is required for the 1000 rpm pump),
• an oil reservoir , with sight gauge, line filter and
3
6.5 gallon capacity (5.5 gallons/21 liters, used),
• an oil cooler , mounted inside the fan, and;
4
• all interconnecting hoses (not shown). There are separate kits for rigid and rotating planters,
pull-type and 3-point planters, planters with and without fertilizer capability and ground drive vs. hydraulic drive.

Suitable Applications

A PTO kit may be needed where:
• the tractor has an Open Center hydraulic system;
• the tractor has no remote port for the fan; or,
• the tractor is Closed Center, but the remotes offer insufficient oil flow to reliably operate the fan.

Kits Covered

401-845A YP4-6-8 PTO 540 3PT ASSY 401-846A YP4-6-8 PTO 540 NO FERT PULL 401-847A YP4-6-8 PTO 540 DRY FERT ASSY 401-848A YP4 PTO 540 LIQ FERT ASSY 401-849A YP6-8 PTO 540 LIQ FERT ASSY 401-879A 401-956A 411-016A 411-035A 411-036A 411-037A 411-038A 411-163A 411-164A 411-165A 411-166A 411-167A 411-168A
See “Compatible Planters” starting on page 25 for more details. Kits for 2- and 3-section planters are covered in separate manual 411-015M.
YP8RW 3PT PTO 540 ASSY YP4,6,8 FAN UPDATE 20A,25A PTO PUMP KIT YP825R PTO HYD PUMP GND DV 540 YP825R PTO HYD PUMP GND DV1000 YP825R PTO HYD PUMP HYD DV 540 YP825R PTO HYD PUMP HYD DV1000 YP4-6-8 PTO 1000 3PT ASSY YP4-6-8 PTO 1000 NO FERT PULL YP4-6-8 PTO 1000 DRY FERT ASSY YP4 PTO 1000 LIQ FERT ASSY YP6-8 PTO 1000 LIQ FERT ASSY YP8RW 3PT PTO 1000 ASSY
U
R
F
B
L
D
4
CAUTION
818-130C Rev. B
To avoid Injury or Machine Damage: *Operate only with 540 rpm PTO
2
Figure 1:
3
1
34617
PTO Kit Major Components

Related Documents

401-885M
118-999B
118-999M
118-999P
401-651M
401-651B
401-652P
401-652M
401-652P
401-923M
401-923B
401-923P
PTO Operation, Maintenance and Installation (this document)
Material Rate manual, 2025A and 2525A
Operator manual, 2025A and 2525A
Parts manual, 2025A and 2525A
Operator manual, YP425A, YP625A and YP825A pull-type models
Material Rate manual, YP4/6/825A/3P
Parts manual, YP4/6/825A pull-type
Operator manual, YP425A3P, YP625A3P and YP825A3P three-point models
Parts manual, YP4/6/825A 3-point
Operator manual, YP825AR rotating
Material Rate manual, YP825AR
Parts manual, YP825AR

Related Parts

The 1000 rpm PTO kits require one of two tractor-specific couplers, not included with the PTO kit.

20-Spline Coupler

210
826-777C 1 3/4-20 PTO COUPLER

21-Spline Coupler

211
826-778C 1 3/8-21 PTO COUPLER
401-885M Table of Contents Index 2014-06-16
Great Plains Manufacturing, Inc. Table of Contents Index Introduction 7

Using This Manual

This manual familiarizes you with safety, operation, adjustments, maintenance and assembly. Follow the recommendations to ensure safe and efficient operation.
Definitions
The following terms are used throughout this manual.
Note: Paragraphs in this format provide useful
information related to the current topic.
Liability, Economic and Results Risks:
Paragraphs in this format present a crucial point of information related to the current topic. Read and follow the directions to: remain safe, avoid serious damage to equipment and ensure desired field results.
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 (shown at right) depicts Up, Right, Back, Down, Left and Front.
U
F
L
R
B
D

Call-Outs

1 9
to
and
a z
to
11
to
101 244
to
The information in this manual is current at printing. Some parts may change to assure top performance.
Single-character callouts identify components in the currently referenced Figure or Figures. Numbers and letters may be reused for different items on other pages.
53
Two-digit callouts identify the same existing parts throughout this manual. See page 70 for a list of these parts and their disposition.
Three-digit callouts identify the same new parts throughout this manual. See page 68 for a list of these parts.

Owner Assistance

If you need customer service or repair parts, contact a Great Plains dealer. They have trained personnel, repair parts and equipment specially designed for Great Plains products. Your machine’s parts were specially designed and should only be replaced with Great Plains parts.
Record your Air-Pro® PTO pump kit model number here for quick reference:
Model Number:__________________________
Date Purchased: __________________________
Your Great Plains dealer wants you to be satisfied with your updated machine. If you do not understand any part of this manual or are not satisfied with the service received, please take the following actions.
1. Discuss the matter with your dealership service manager. Make sure they are aware of any problems so they can assist you.
2. If you are still unsatisfied, seek out the owner or general manager of the dealership.
For further assistance write to:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060 Salina, KS 67402-5060
785-823-3276
2014-06-16 Table of Contents Index 401-885M
8 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

PTO Operation

Tractor Requirements

Tractor requirements are different for 540 rpm pumps (below) and 1000 rpm pumps (page 9).

540 rpm Tractor Requirements

The 540 rpm Air-Pro® PTO pump accessories require a tractor with:
Refer to Figure 2
• a rear-facing ASABE or ASAE Type 1 PTO stub
5 6
shaft with master shield shaft: 1 clockwise rotation (as viewed from tractor rear, facing forward),
• a “live” or “independent” PTO drive system, that can be operated with the tractor stationary,
• a fixed or available shaft speed of 540 rpm, and an available PTO power output of 5 hp (3.7 kW),
• a drawbar that engages the torque arm of the PTO pump assembly, and
• a chain anchor point - a stable, non-moving component of the tractor, within reach of the pump’s torque arm chain.
540 rpm PTO Clearance
If the tractor PTO is not known to conform to Type 1 specifications, check the following pump-specific clearance dimensions:
Refer to Figure 3
a. Shaft to master shield top:
b. Shaft to master shield sides:
c. Shaft to drawbar top:
d. Shaft to ground:
3
⁄8inch (35 mm) 6-spline,
7
8
3.5 inches (8.9 cm) minimum or hinged lid
5.0 inches (12.7 cm) minimum
9 inches (22.8 cm) minimum 15 inches (38.1 cm) maximum It may be necessary to invert an offset drawbar, or relocate or remove any clevis installed on the drawbar.
16 inches (40.6 cm) minimum
CAUTION
To avoid Injury or
Machine Damage:
*Operate only with
540 rpm PTO
818-130C Rev. B
8
Figure 2:
Tractor PTO
a
b
6
5
7
34618
c
d
Figure 3:
Tractor PTO Clearances
401-885M Table of Contents Index 2014-06-16
34623
Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 9

1000 rpm Tractor Requirements

540 rpm tractor requirements are on page 8. The 1000 rpm Air-Pro tractor with:
Refer to Figure 2
• a rear-facing ASABE or ASAE Type 2 or Type 3 PTO stub shaft with master shield
3
1
⁄4inch (44.5 mm) 20-spline
13⁄8inch (35 mm) 21-spline
clockwise rotation (as viewed from tractor rear, facing forward),
• a “live” or “independent” PTO drive system, that can be operated with the tractor stationary,
• a fixed or available shaft speed of 1000 rpm, and an available PTO power output of: 20 hp (15 kW): Air-Pro® with ground drive meters 40 hp (30 kW): Air-Pro® with hydraulic drive meters
• and a drawbar that engages the torque arm of the PTO pump assembly.
®
PTO pump accessories require a
5 6
7
Figure 4:
Tractor PTO
6
5
7
34842
1000 rpm Type 2 PTO Clearance
If the tractor PTO is not known to conform to Type 2 specifications, check the following pump-specific clearance dimensions:
Refer to Figure 3
a. Shaft to master shield top:
3.5 inches (8.9 cm) minimum or hinged lid
b. Shaft to master shield sides:
5.0 inches (12.7 cm) minimum
c. Shaft to drawbar top:
9 inches (22.8 cm) minimum 15 inches (38.1 cm) maximum It may be necessary to invert an offset drawbar, or relocate or remove any clevis installed on the drawbar.
d. Shaft to ground:
16 inches (40.6 cm) minimum
CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
818-240C Rev. A
a
b
c
d
Figure 5:
Type 2 PTO Clearances
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10 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.
1000 rpm Type 3 PTO Clearance
If the tractor PTO is not known to conform to Type 3 specifications, check the following pump-specific clearance dimensions:
Refer to Figure 3
a. Shaft to master shield top:
5.9 inches (15.0 cm) minimum or hinged lid
b. Shaft to master shield sides:
7.0 inches (17.8 cm) minimum
c. Shaft to drawbar top:
8.6 inches (22.0 cm) minimum
13.75 inches (35.0 cm) maximum It may be necessary to invert an offset drawbar, or relocate or remove any clevis installed on the drawbar.
d. Shaft to ground:
16 inches (40.6 cm) minimum
a
b
c
d
CAUTION
To avoid Injury or
Machine Damage:
·Operate only with 1000 rpm PTO
818-240C Rev. A
Type 3 PTO Clearances
Figure 6:
34845
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Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 11

Hitching with PTO

Hitching procedures are different for 540 rpm pumps (below) and 1000 rpm pumps (page 12).

Hitching with 540 rpm PTO

The pump may be installed before or after hitching the planter to the tractor. With a 3-point planter, installing the pump first may be easier.
Prepare Tractor
1. Back the tractor into close proximity to the planter (within pump hose reach of the PTO shaft).
2. Shut down the tractor and remove the key.
Entanglement and Crushing Hazard:
Never perform any mechanical adjustment, PTO setup or hitching with the tractor running. Take no chances that the PTO might become active. Entanglement or flailing equipment can cause serious injury or death faster than you can react.
Refer to Figure 7
3. Make any necessary adjustment to the tractor drawbar . This might include: inverting an offset drawbar, and/or relocating a clevis assembly (not shown).
1
Mount PTO Pump
2
1
Figure 7:
3
34620
Entanglement and Flailing Equipment Hazards:
Do not use a driveline, shaft extension, adaptor or external gearbox with the PTO pump. Use only a native 540 rpm 6-spline stub shaft. Extra fittings create entanglement hazards. Fittings also destabilize the shaft, and may make it impossible to adequately secure the pump against torque and shaft slip.
Mount Pump
4. Clear the PTO shaft of any pins or wires that might prevent the pump from fully seating on the shaft.
5. With hydraulic hoses to rear, and torque arm to right of drawbar, slide the pump assembly fully onto the PTO shaft.
Secure Pump
Refer to Figure 8 (shown with pump off for clarity)
6. With the torque arm firmly against the drawbar: loop the chain once around the drawbar, then through the anchor point , then around the drawbar at least once more, then through the keyhole slot in the torque plate.
The drawbar loops prevent pump rotation. The anchor loop retains the pump on the PTO shaft.
2
3
4
5
1
7
5
4
Figure 8:
Route Pump Chain
6
7
34622
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12 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.
Refer to Figure 9
7. At least one full chain link must be exposed at the
7
slot on the decal side of the torque arm plate.
If there are more than a few chain loops left at the plate keyhole, route any excess chain through the anchor point and/or around the drawbar.
8. Do NOT use any pins, cross-bolts or wires to secure
DANGER
the pump to the PTO shaft. Such fasteners are not required for safe pump operation, and would add a needless entanglement hazard.
9. Pull and twist the pump assembly to verify that the chain is sufficiently taut to prevent excess pump
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
7
DO NOT OPERATE WITHOUT-
KEEP AWAY!
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely
attached with torque arm and chain
858-005C
rotation or sliding along the PTO shaft.
10. Complete normal planter hitching.

Hitching with 1000 rpm PTO

540 rpm hitching begins on page 11.
The 1000 rpm pump may be installed before or after hitching the planter to the tractor.
Install Coupler
The 1000 rpm PTO kits require one of two tractor-specific couplers, not included with the PTO kit:
210
826-777C 1 3/4-20 PTO COUPLER
211
826-778C 1 3/8-21 PTO COUPLER
Refer to Figure 10 (showing coupler 826-778C)
1. Loosen both set screws ( and ) at the narrow end of the coupler. Note that they are different sizes.
2. Rotate the coupler until the internal keyway aligns with the key on the pump shaft. Slide the coupler onto the pump shaft.
3. Tighten both set screws to the Grade 5 torque specification for each thread size.
To remove or exchange a coupler at a later time, first dismount the pump assembly from the tractor PTO shaft, then loosen both set screws.
243 244
243
Figure 9:
Secure Pump Chain
211
244
Figure 10:
Secure Coupler to Pump
34627
36316
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Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 13
Prepare Tractor
Refer to Figure 11
4. Completely remove the socket head cap screws from the coupler .
2
Note: If the coupler is not mounted, or you need to
change to a different coupler, see page 12.
5. If space is constrained inside the tractor PTO shield, rotate the coupler to an orientation that eases later
1
Entanglement and Crushing Hazard:
Never perform any mechanical adjustment, PTO setup or hitching with the tractor running. Take no chances that the PTO might become active. Entanglement or flailing equipment can cause serious injury or death faster than you can react.
inserting and tightening of the cap screws.
6. Back the tractor into close proximity to the planter (within pump hose reach of the PTO shaft).
7. Shut down the tractor and remove the key.
8
1
2
8. Make any necessary adjustment to the tractor drawbar . This might include:
3
4
inverting an offset drawbar, and/or relocating a clevis assembly (not shown).
9. Clear the PTO shaft of any pins or wires that
4
might prevent the pump from fully seating on the shaft.
Mount Pump
10. With hydraulics hoses to rear, and torque arm to
5
right of drawbar, slide the pump assembly fully onto the PTO shaft .
11. Insert one socket head cap screw into the larger counter-sunk clamping holes in the aft end of the
4
1
7
coupler. The screw head fully seat, below the
6
3
7
DANGER
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and clamp
bolts properly torqued
CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
858-030C
818-240C Rev. A
5
surface of the coupler, in these holes.
See NOTICE at right.
Figure 11:
Mount PTO Pump
36317
12. Adjust the position of the coupler on the shaft until the screw threads are in the shaft groove . Thread
6
screw in until finger tight.
13. Insert the other socket head cap screw in the other side of the coupler. Thread it until finger tight.
14. Pull and twist the pump assembly to verify that both retention screws have engaged the PTO shaft grove and prevent the pump from sliding along the PTO shaft.
Entanglement and Flailing Equipment Hazards:
Do not use a driveline, shaft extension, adaptor or external gearbox with the PTO pump. Use the pump, with a Great Plains coupler, only on a native 1000 rpm 20- or 21-spline stub shaft. Extra fittings create entanglement hazards. Fittings also destabilize the shaft, and may make it impossible to adequately secure the pump against torque and shaft slip.
15. Tighten both cap screws to1⁄2-13 Grade 8 torque specification (105 foot-pounds, 145 N-m).
16. Complete normal planter hitching.
Equipment Damage Risk:
Use the clamping holes . Do not use the drive-out holes
7 8
(the smaller forward holes that are threaded to the surface). Drive-out holes are used only during dismount. The screws only partially thread into these holes. These holes do not adequately secure the pump to the shaft. The screws are likely to fall out if these holes are used for pump mounting.
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14 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

Check Hydraulics

Check Oil Level

Refer to Figure 12
1. Verify that the planter is level front to back and side to side.
2. Inspect the sight gauge on the pump system reservoir tank. The oil level must be aligned with the center border of the OIL FILL LINE decal (858-003C).
8
9
8
9
Hot Surface and Hot Fluid Hazards:
Assess the tank temperature before adjusting oil level. Draining excess hot oil could result in a severe burn. If the PTO has been operated recently, the oil temperature could be as high as 180°F (82°C).
3. Add or drain oil as needed to obtain the correct amount. Some adjustment is normally required with a new system, or after a filter change.
Note: The fill level dimension from tank bottom is:
a
9.15 inches (23.2 cm)
If the
858-003C decal requires replacement, adjust
the center border line to this height.

Inspect Hoses and Fittings

4. Check that all hydraulic fittings are tight and dry. Inspect all hoses for damage, wear and fatigue. Because the PTO pump system is closed, any visible fluid may be an indication of a leak.
OIL FILL LINE
CAPACITY = 5.5 U.S. GALS
USE ANY HIGH QUALITY MINERAL BASED HYDRAULIC FLUID WITH A VISCOSITY RATING OF 10W-30. OIL MUST BE CLEAN AND FREE FROM DIRT OR CONTAMINANT PARTICLES TO PREVENT DAMAGE TO PUMP AND MOTOR. REPLACE FILTER ELEMENT AFTER EVERY 150 OPERATING HOURS OR 2 YEARS SERVICE. LEVEL TOOLBAR BEFORE CHECKING OIL LEVEL
858-003C
HOT FLUID HAZARD
Read Owner’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO to prevent damage to Hydraulic Motor Keep Radiator clean and free of foreign matter to prevent overheating. Do NOT operate with hydraulic oil at or above 180°F.
858-004C
a
WARNING
Figure 12:
Check Oil Level
34625
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Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 15

Starting the Pump

While the planter is stationary, it may be necessary to briefly operate the pump for any of several reasons:
• verify system installation or PTO operation.
• verify oil level with system fully charged.
• set initial meter pressurization.
Refer to Figure 13
1. If the system is adjusted, leave the flow control valve as-is.
If the system is not yet adjusted, close the flow control valve to prevent fan motion. Turn the lock
1 2
disc counter-clockwise to release the knob . Turn the knob fully clockwise to close the valve.
2. Clear the hitch area of non-essential persons. Check essential personnel for long hair, scarfs, cords, frays, loose flaps and anything else that might get entangled. Clear the area of dangling or loose wires, straps, cord and other lines that might become entangled and pull someone in.
3. It is not necessary to run the PTO at the full 540 or 1000 rpm. You may run it any lower speed that provides sufficient meter pressurization (page 17).
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is operating.
1
2
Figure 13:
Flow Control Valve
34626
Equipment Damage Risk:
Do not START the pump and fan suddenly at high PTO power. Engage the PTO clutch slowly (if possible) and/or at low engine rpm, and gradually increase PTO rpm. The hydraulic fan can be damaged by sudden acceleration.
4. • Check that tractor is in Park or Neutral.
• Check parking brake set.
• Set the tractor PTO controls for
540 or 1000arpm gearing (if multi-speed) and clockwise rotation (if bidirectional).
• Start tractor engine and set throttle to idle.
• Engage the PTO.
• Bring the tractor engine and PTO up to intended
field rpms.
5. Check for hydraulic fluid leaks.
6. Verify fluid level in tank (page 14).
High Pressure Fluid Hazard:
Watch for signs of fluid leaks. Escaping fluid under pressure can have sufficient pressure to penetrate the skin causing serious injury. Use a piece of paper or cardboard, NOT BODY PARTS, to check for leaks. Wear protective gloves and safety glasses or goggles when working with hydraulic systems. If an accident occurs, seek immediate medical attention from a physician familiar with this type of injury.
a. Operate above 540 rpm only with a 1000 rpm pump.
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16 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

About the Flow Control Valve

The flow control valve adjusts the percent of PTO pump output that is supplied to the planter hydraulic motors. The total pump flow, in gpm or liters/min, is also directly proportional to PTO shaft rpm.
Adjustment typically requires two persons. Pump oil flow is ideally adjusted with all motors active under simulated field workload, relying on Magnehelic® pressure gauge readout, and in some cases seed monitor rpm readout.
On Great Plains Yield-Pro® single section planters, the PTO pump supplies one or two hydraulic motors. The table below summarizes the motor count/use and readout resource available for the covered planters.
Figure 14:
Flow Control Valve (YP825A)
34626
PTO
Kit
401-845A 411-163A
401-846A 411-164A
401-847A 411-165A
401-848A 411-166A
401-849A 411-167A
401-879A 411-168A
411-016A 2025A, 2525A Ground Meter Fan - in. H
411-035A 411-036A
411-037A 411-038A
a. See page 25 for detailed compatibility information. b. Fan rpm is reported by the monitor console on this configuration, and can be used as a reference.
YP425A3P, YP625A3P, YP825A3P Narrow
Seed-only YP425A, YP625A, YP825A
Dry fertilizer YP425A, YP625A, YP825A
Liquid fertilizer YP425A
Liquid fertilizer YP625A, YP825A
YP825A3P Wide
YP825AR ground drive
YP825AR hydraulic drive
Planter
Model(s)
a
a
Seed
Drive
First
Motor
Second
Motor
Fan
Adjust
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Fan mast
Ground Meter Fan - in. H2O Mainframe front
Hydraulic Meter Fan Seed Drive in. H2O
Valve
Location
O Upper Frame Tube
2
b
Mainframe front
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Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 17

Setting Meter Pressurization

General Steps for all Kits

Refer to Figure 15
Meter pressurization is set as for a standard planter, using the PTO kit valve rather than a lever for a tractor
1
hydraulic remote. This adjustment is normally made with the seed meters full of seed.
Consult your planter Seed Rate manual for the correct seed disk, meter inlet shutter setting, and recommended initial pressure as reported by the Magnehelic
1. Check that the Inlet Butterfly valve handle is set
®
gauge .
3
to 30°. If not, loosen the pivot bolt, reset handle, and Re-secure bolt.
2. Mount the PTO pump (page 11).
3. Shut off the tractor and remove the key.
4. Consult your planter Seed Rate manual for the intended crop, noting:
• Range and Transmission sprockets required,
• correct Air-Pro
®
seed disk (not shown),
• initial inlet shutter setting (not shown), and
• initial meter pressurization.
5. Install seed disks. Leave rain covers off meters.
6. Set meter inlet shutters per the Seed Rate manual.
7. Open any slide gates under hoppers.
8. Load enough seed to completely fill the meter inlet tubes, and at least partially fill every hopper.
9. Set out containers, under row unit seed tubes, to collect seed metered during setup.
10. Clear the hitch area of non-essential persons. Check essential personnel for long hair, scarves, cords, frays, loose flaps and anything else that might get entangled. Clear the area of dangling or loose wires, straps, cord and other lines that might become entangled and pull someone in.
2
4
1
Meter Pressure Adjustment
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is operating.
2
90
60
30
0
848-020C
Figure 15: YP625A
3
29842 25137 34626
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Ground Drive Meter Pressure

1. Configure the meter drive system sprockets for the rate desired (see Seed Rate Manual).
2. Per your planter Operator manual, hitch the planter. Raise the planter. Install lift locks. This is to free the meter ground drive wheel.
3. • Check that tractor is in Park or Neutral.
• Check parking brake set.
• Set the tractor PTO controls for
540 or 1000 rpm gearing (if multi-speed) and clockwise rotation (if bidirectional).
• Start tractor engine and set throttle to idle.
• Engage the PTO.
• Bring the tractor engine and PTO up to intended
field rpms.
4. At the flow control valve, turn the lock disc counter-clockwise to release the knob . Slowly
4
1
turn the knob counter-clockwise to start the fan. Bring the fan speed up until the Magnehelic®gauge displays the suggested pressure for this crop.
5. Turn the meter ground drive wheel forward several turns, until all exposed cells in all seed disks contain seed.
6. Recheck the Magnehelic® gauge . The reported
2
pressure is likely to have increased. Adjust the flow control knob to bring the pressure reading back to the recommended value. Tighten the lock disc.
7. Shut down the PTO, and as desired, the tractor.
8. Install rain covers on seed meters.
The PTO pump is now ready for field work. Some adjustment of meter pressure and inlet shutters may be required, depending on seed and planting conditions. Use the flow control valve, and not the butterfly valve, to make pressure adjustments.
4
1
Meter Pressure Adjustment
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is operating.
2
90
60
30
0
848-020C
Figure 16: YP625A
3
29842 25137 34626
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Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 19

Hydraulic Drive Meter Pressure

On these models, the PTO system drives two motors, plumbed in parallel.
Adjustment Steps:
Refer to Figure 17
1. Have the DICKEY-john Level 2&3 manual at hand. Making changes to the GROUND SPEED SETUP configuration requires the Level 2 password.
2. Have the Operator and Seed Rate manuals at hand, so that meter setting and fan rpm targets are known for the seed to be planted.
3. Turn the IntelliAg® monitor system on. Turn the Master switch off. On the console, navigate to the GROUND SPEED SETUP screen. Record the ground speed constant:
Source Gspd Constant
4. Set:
Source Manual Gnd Spd Implement Lift
®
Planter/Drill Control User
Digital Freq. 12345 (actual value varies)
Manual
5.0 MPH (or as desired) Disabled
2
3
90
60
30
0
848-020C
1
4
Figure 17: YP825AR
Meter Pressure Adjustment
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is operating.
29842 25137 36291
5. Hitch the tractor to be used, and install the PTO pump. Raise the planter.
6. Turn the lock disc counter-clockwise to release the knob . Turn the knob fully clockwise to shut off
1
4
flow to the motors.
7. Start the tractor, and seed monitor. Bring the PTO up to expected field rpm (which is often not the full 1000 rpm).
8. Turn the IntelliAg
®
Master switch on to engage the
hydraulic seed meter drive.
9. With one person observing the Magnehelic pressure gaugea, turn the knob
1
®
counter-clockwise to obtain the pressure recommended for this planter configuration, crop, population and intended field speed.
Secure the knob at this setting with the lock disc.
10. Shut down the PTO. Set Master switch off.
11. On the console, navigate to the GROUND SPEED SETUP screen. Restore the original settings:
Source Gspd Constant Implement Lift
Digital Freq. 12345 (actual value varies) Enabled
12. If the planter has hydraulic drive, engage it for a “FIVE REV TEST” or similar operation to create a hydraulic motor load. Adjust PTO oil flow for target fan speed plus 50 rpm.
Monitor meter pressurization when planting. If it is different than during flow setup, perform the setup steps again, and adjust the flow control valve for the recommended pressure.
a. The monitor console also reports fan rpm. If you make a note of the fan rpm at the recommended pressure, you can use the console to
check air system status in the field.
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20 Single-Section PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.

PTO Unhitching

The pump may be dismounted before or after unhitching the planter and tractor. With a 3-point planter, dismounting the pump last may be easier, which is the order shown on this page. For safety, have the tractor completely shut down during PTO dismounting.
1. At the tractor, shut down the PTO.
Note: The PTO may be shut down suddenly or gradually.
The fan circuit includes a bypass to recirculate excess pressure during deceleration. The fan is only sensitive to sudden acceleration.
2. Do not approach the hitch area until the PTO shaft, and the fan, have slowed to a complete stop.
3. Mechanically unhitch the planter per the Operator manual. Leave the PTO pump mounted at this time.
4. Pull the tractor forward enough to allow access to the PTO pump. Put the tractor in Park or Neutral. Engage the parking brake. Shut the tractor down. Remove the key.

Dismount 540 rpm Pump

Refer to Figure 9 on page 12
5. Pass the free end of the pump chain forward through the torque arm keyhole.
6. Unwrap the chain from the anchor point and drawbar.
7. Slide the PTO pump off the PTO shaft. Store the pump on the planter. Use the chain to secure it to any available structure.
Entanglement Hazard:
Remain clear of a rotating PTO shaft. Even when coasting to a stop, a PTO shaft can have enough residual torque to inflict serious or fatal injury.
Hot Surface Hazard:
Remain clear of the pump reservoir during unhitching. The oil may be hot enough to inflict a painful burn.
1

Dismount 1000 rpm Pump

3
Refer to Figure 18
5. Loosen and remove the socket head cap screws at the PTO coupler .
2
1
6. Slide the PTO pump off the PTO shaft.
If, after removing the cap screws, the coupler is still grasping the PTO shaft too tightly to remove, use the drive-out holes to pry the clamping halves
3
apart. Insert the cap screws in the forward drive-out
2
DANGER
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely attached with torque arm and clamp
bolts properly torqued
CAUTION
To avoid Injury or Machine Damage:
·Operate only with 1000 rpm PTO
858-030C
818-240C Rev. A
holes. Tighten them alternately until the coupler is free.
Figure 18:
36317
Dismount 1000 rpm PTO Pump
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Great Plains Manufacturing, Inc. Table of Contents Index 21

PTO Troubleshooting

Symptom Cause Remedy
Seed meter pressure too low
Pressure correct on
®
Magnehelic
, but
skips or doubles
Oil overheating
Fan running in reverse
Fan doesn’t run at all
Flow control adjusted too low. Increase flow control (page 17).
Fan butterfly valve closed or set at too high an angle.
PTO rpm too low. Bring up PTO rpm, but do not exceed
Fan running in reverse (multiple possible causes).
Pump cavitating. Check oil level (page 14).
No blank disks in unused seed meters. Install blank disks to balance pressure.
Seed inlet shutters open too wide. Verify setting vs., rate charts. Adjust as
Oil filter clogged. Replace oil filter and oil (page 22).
Magnehelic® gauge disconnected or sample line(s) leaking.
Magnehelic® gauge uncalibrated. Re-zero (see Operator manual).
Flow control valve failure or malfunction. Repair or replace valve.
Fan seals damaged. Repair or replace fan motor.
PTO rotation and fan or valve hoses reversed (highly unlikely).
Fan cooler plugged. Clean or replace fan cooler.
Pressure gauge disconnected or sample line(s) leaking.
Magnehelic® gauge uncalibrated. Re-zero (see Operator manual).
Seed variety may require adjustment. Check all other possible pressure errors,
Oil filter clogged. Replace oil filter and oil (page 22).
PTO rpm too high. Adjust system for ideal pressure at lower
Fan butterfly valve angle too high. Reduce to 30° (page 17).
PTO shaft turning counter-clockwise. Set tractor controls for clockwise PTO.
Hoses reversed. Check hose routing from pump to valve, to
Low oil level in tank. Top off tank. Check system for leaks.
Flow control valve closed. Adjust valve (page 17).
Hoses misconnected. Review installation (page 54).
Reduce to 30° (page 17).
540 rpm.
See “Fan running in reverse” below.
need for actual seed pool.
Check air gauging system.
Set tractor controls for clockwise PTO. Reconnect hoses.
Check air gauging system.
then fine tune pressure for one seed per disk cell.
PTO rpm.
tank and fan per Parts manual.
2014-06-16 Table of Contents Index 401-885M
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