Great Plains AS-20 User Manual

Operator’s/Parts Manual

All Seeds Hitch

Flat Fold Marker

Manufacturing, Inc.

P.O. Box 5060 ● Salina, Kansas 67402-5060

Read the Operator’s manual entirely. When you see this symbol, the subsequent in-

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structions and warnings are serious - follow without exception. Your life and the lives of
others depend on it!

© Copyright 1995 Printed 3/19/03

12432

Cover illustration may show optional equipment not supplied with standard unit.

113-476M

General Information

General Information

Important Notice

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 at all
times in the future.

Printed in the United States of America.
For your convenience, record your Serial Number, Mod-

el Number and the Date Purchased, of your drill, in the
spaces provided below. Have this information before
you when calling a Great Plains Authorized Dealer.

This Operator’s Manual applies to the All Seeds Hitch Flat Fold Marker listed below:

113-469A 15’ All Seeds Dual Marker
113-470A 20’ All Seeds Dual Marker

Owner’s Information

Name: _____________________________________
Address ____________________________________
City________________State ____ Zip ___________
Phone_______________________

Name of Dealership ___________________________
Dealer’s Name _______________________________
Address ____________________________________
City________________State ____ Zip ___________
Phone_______________________

Model Number_______________________________
Date Purchased______________________________

All Seeds Hitch Flat Fold Marker 113-476M 4/8/04Great Plains Mfg., Inc.

Table of Contents

Table of Contents

Using this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Section 1Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

General Operation & Repair . . . . . . . . . . . . . . . . 3

Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Section 2 Assembly Instructions & Set-Up . . . . . . 4

Torque Values Chart. . . . . . . . . . . . . . . . . . . . . . . 4

Installation Instructions . . . . . . . . . . . . . . . . . . . . 5

Section 3 Hydraulic System . . . . . . . . . . . . . . . . . . 9

Adjusting The Hydraulics . . . . . . . . . . . . . . . . . . . 9

Section 4 Maintenance & Lubrication. . . . . . . . . . 10

Section 5 Troubleshooting . . . . . . . . . . . . . . . . . . 12

Section 6 Warranty. . . . . . . . . . . . . . . . . . . . . . . . . 12

Parts Section

Section 7 Assembly . . . . . . . . . . . . . . . . . . . . . . . . 14

Flat Fold Marker Assembly . . . . . . . . . . . . . . . . 14

Disk Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Section 8 Hydraulics . . . . . . . . . . . . . . . . . . . . . . . 18

Hydraulic Assembly . . . . . . . . . . . . . . . . . . . . . . 18

Hydraulics Cylinder (810-196C). . . . . . . . . . . . . 20

Sequence Valve (810-197C) . . . . . . . . . . . . . . . 22

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All Seeds Hitch Flat Fold Marker 113-476M

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Using this Manual

Using this Manual

For your safety and to help in developing a better under­standing of your equipment we highly recommend that
you read the operator sections of this manual. Reading
these sections not only provides valuable training but
also familiarizes you with helpful information and its lo

Introduction

This manual has been prepared to instruct you in the
safe and efficient operation of your All Seeds Hitch Flat
Fold Marker. Read and follow all instructions and safety
precautions carefully.

The parts on your All Seeds Hitch Flat Fold Marker have
been specially designed and should only be replaced
with genuine Great Plains parts. Therefore, should your
All Seeds Hitch Flat Fold Marker require replacement
parts go to your Great Plains Dealer.

The right hand and left hand as used throughout this
manual is determined by facing in the direction the ma
chine will travel when in use unless otherwise stated.

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The SAFETY ALERT SYMBOL indicates that there is a
potential hazard to personal safety involved and extra
safety precautions must be taken. When you see this
symbol, be alert and carefully read the message that fol
lows 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.

cation. The parts sections are for reference only and
don’t require cover to cover reading. After reviewing
your manual store it in a dry, easily accessible location
for future reference.

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Watch for the following safety notations through­out your Operators Manual:

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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.

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Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

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.

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WARNING!

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CAUTION!

NOTE: Indicates a special point of information which
requires your attention.

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All Seeds Hitch Flat Fold Marker 113-476M 4/8/04

Great Plains Mfg., Inc.

Section 1 Safety Rules

Section 1 Safety Rules

Most accidents are the result of negligence and care­lessness, usually caused by failure of the operator to
follow simple but necessary safety precautions. The fol
lowing safety precautions are suggested to help prevent
such accidents. The safe operation of any machinery is
a big concern to consumers and manufacturers. Your All
Seeds Hitch Flat Fold Marker has been designed with
many built-in safety features. However, no one should
operate this product before carefully reading this Oper
ators Manual.

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General Operation & Repair

1. Never allow the Flat Fold Marker to be operated by any­one who is unfamiliar with the operation of all functions
of the unit. All operators should read and thoroughly un­derstand the instructions given in this manual prior to
moving the unit.

2. Make sure safety rules are understood before operating
machinery or tractor.

3. Never permit any persons other than the operator to ride
on the tractor.

4. Never permit any persons to stand near the Flat Fold
Marker while it is in operation.

5. Regulate your speed to the field conditions, maintaining
complete control at all times.

6. After repairing or adjusting, make sure all tools and
parts are removed from the implement before attempting
to operate it.

7. Do not grease or oil machine while it is in operation.

8. Loose fitting clothing should not be worn as it may catch
in moving parts.

9. Never dismount from a moving tractor.

10. Do not leave the tractor or the implement unattended
with the engine running.

11. Do not stand between the tractor and the implement dur-

ing hitching.

12. Detach and store implements in an area where children

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normally do not play. Stabilize implements by using suit
able supports and block wheels.

13. If a hydraulic leak develops, correct it immediately. Es­caping hydraulic oil can have extremely high pressure. A
stream of high pressure oil may easily penetrate the skin
as with modern needle-less vaccination equipment - but
with the exception that hydraulic fluid may cause blood
poisoning. It is imperative that the connections are tight
and that all lines and pipes are in good condition. If an
injury is caused by the escaping hydraulic fluid, see doc­tor at once!

14. Use a piece of cardboard or wood to detect leaks of hy­draulic oil under pressure.

15. Be sure to relieve all hydraulic pressure before disconnec­tion any lines or pipes between the implement and the trac­tor hydraulic system. Keep all guards and shields in place.

Transporting

1. Use good judgement when transporting tractor and im­plements on the highway. Always maintain complete con­trol of the machine.

2. Limit transport speed to 20 mph. Transport only with a
farm tractor of sufficient size and horse power.

3. Always make sure flashing safety lights, “Slow Moving
Vehicle” emblem, and reflectors are in place and visible
prior to transporting the machine on public roads.

4. Know your state and local laws concerning highway
safety and regulations. Comply with these laws when
transporting machinery.

5. Use warning flags or approved warning lights at night
and during other periods of poor visibility. Do your best
to prevent highway accidents

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Section 2 Assembly Instructions & Set-Up

Section 2 Assembly Instructions & Set-Up

Torque Values Chart for UNC Threads

Bolt head
identification
marks are as per
grade.

NOTE: Manufactur­ing marks will vary.

Bolt Size

inches mm Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.

1/4" 6.35

5/16" 7.94

3/8" 9.53

7/16" 11.11

1/2" 12.70

9/16" 14.29

5/8" 15.88
3/4" 19.05
7/8" 22.23

1" 25.40
1 1/8" 25.58
1 1/4" 31.75
1 3/8" 34.93
1 1/2" 38.10

Foot Pounds Newton-Meters Foot Pounds Newton-Meters Foot Pounds Newton-Meters

5 6 6.8 8.13 9 11 12.2 14.9 12 15 16.3 20.3
10 12 13.6 16.3 17 20.5 23.1 27.8 24 29 32.5 39.3
20 23 27.1 31.2 35 42 47.5 57.0 45 54 61.0 73.2
30 35 40.7 47.4 54 64 73.2 86.8 70 84 94.9 113.9
45 52 61.0 70.5 80 96 108.5 130.2 110 132 149.2 179.0
65 75 88.1 101.6 110 132 149.2 179.0 160 192 217.0 260.4
95 105 128.7 142.3 150 180 203.4 244.1 220 254 298.3 358.0

150 185 203.3 250.7 270 324 366.1 439.3 380 456 515.3 618.3
160 200 216.8 271.0 400 480 542.4 650.9 600 720 813.6 976.3
250 300 338.8 406.5 580 596 786.5 943.8 900 1080 1220.4 1464.5

Grade 2 Grade 5 Grade 8*

800 880 1084.8 1193.3 1280 1440 1735.7 1952.6
1120 1240 1518.7 1681.4 1820 2000 2467.9 2712.0
1460 1680 1979.8 2278.1 2380 2720 3227.3 3688.3
1940 2200 2630.6 2983.2 3160 3560 4285.0 4827.4

* Thick nuts must be used with Grade 8 bolts

NOTE: Torque requirements listed above do not apply to self-locking nuts . For self-locking nuts increase the torque requirements listed by 15%.

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All Seeds Hitch Flat Fold Marker 113-476M 4/8/04

Great Plains Mfg., Inc.

Section 2 Assembly Instructions & Set-Up

All Seeds Hitch Marker
Installation Instructions

NOTE: While using the following text to install your
flat fold marker, you may need to refer back to the
parts section of this manual for more details and for
positive identification of related items not mentioned
in these instructions.

Refer to Figure 2-1 for Installation Instructions steps 1,
2, and 3.

1. Lower the hitch to field position. Allow clearance of
9’ on a 15’ drill and 11’ on a 20’ drill from each end of
the coulter tool bar for marker assembly.

2. Remove the outside u-bolt on the rear, left and right
hand coulter clamp. Position the left marker mount
(#1) so the outer flange can be bolted through the
coulter clamp with 5/8" x 7" bolts, lockwashers and
nuts (#2, 3 & 4). The inside flange of the mount is
fastened to the tube with a 5/8" x 4 1/32" x 6" u-bolt,

Assembly Diagram

Figure 2-1

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Great Plains Mfg., Inc.

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All Seeds Hitch Flat Fold Marker 113-476M

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Section 2 Assembly Instructions & Set-Up

lock washers and nuts, (#5, 3, & 4).

NOTE: The offset of the mount must be in the up­ward direction.

The right hand mount (#10) is mounted similar to the
left mount only the u-bolt is installed in the outside
flange and the inside flange is bolted through the
coulter clamp (See

3. Install the marker valve mount (#6) under the inner
coulter clamp u-bolt of the coulter that is just to the
right of center on the coulter frame tube. Assemble
the valve (#7) to the mount with the 4-port side
downward using two 3/8" x 3/4" long bolts (#8) and
lock washers (#9).

NOTE: JIC fittings do not require high torque. JIC
and O-Ring fittings do not require sealant. Always
use liquid pipe sealant when adding or replacing
pipe thread fittings. To avoid possible danger of
cracking hydraulic fittings from over tightening, DO
NOT use plastic sealant tape.

Refer to Figure 2-2 for Installation Instructions steps 4,
5, and 6.

Figure 2-1).

4. Route the hoses from each marker through the
mount and out the opening in the inside end of the
mount. Slide the cylinder and first section assembly
(#1) into the mount and manually swing the first sec
tion into the lowered position. Bolt the flanges of the
assembly and mount together with four 5/8" x 1 3/4"
long bolts (#2), lockwashers (#3), and nuts (#4) in
each mount.

5. Route the hoses along the coulter frame tube and tie
them to the tube with the releasable cable ties (#6)

Figure 2-2.

See

NOTE: If your hitch is equipped with the fertilizer op­tion, the hydraulic hose can be ran with the fertilizer
hoses.

Connect the hoses to the sequence valve (#7) with
four JIC elbows (#5). Note the port markings and re
fer to the drawing below for proper connections.

6. Connect the two 156" long hoses (#8) to the two top
ports of the sequence valve with two elbows (#5)
and route them to the tongue and through the hose
loop. Use releasable cable ties to secure hose to
frame.

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All Seeds Hitch Flat Fold Marker 113-476M 4/8/04

Great Plains Mfg., Inc.