Yetter 2960-020 User Manual

2960

UNIT MOUNTED

CONSERVATION

COULTER

FOR 800/900/950/955/1200

CYCLO PLANTERS

YETTER MANUFACTURING CO.
FOUNDED 1930

Colchester, IL 62326-0358
Toll free: 800/447-5777
309/776-3222 (Fax)
Website: www.yetterco.com
E-mail: [e-mail]

FOREWORD

You’ve just joined an exclusive but rapidly growing
club.

For our part, we want to welcome you to the group
and thank you for buying a Yetter product.

This is a unique and revolutionary new product.

We hope your new Yetter coulter will help you
achieve both increased productivity and increased
efficiency so that you may generate more profit.
This operator’s manual has been designed into
four major sections.

Foreword, Safety Precautions, Installation and
Operation.

Throughout the manual references may be made
to left side and right side. These terms are used
as viewed from the operator’s seat facing the front
of the tractor.

This SAFETY ALERT SYMBOL indicates
important safety messages in the

manual. When you see this symbol, be
alert to the possibility of PERSONAL INJURY and
carefully read the message that follows.

The word NOTE is used to convey information that
is out of context with the manual text. It contains
special information such as specifications,
techniques, reference information of a
supplementary nature.

The word IMPORTANT is used in the text when
immediate damage will occur to the machine due
to improper technique or operation. Important will
apply to the same information as specified by note
only of an immediate and urgent nature.

It is the responsibility of the user to read the
operator’s manual and comply with the safe and
correct operating procedure and to lubricate and
maintain the product according to the maintenance
schedule in the operator’s manual.

The user is responsible for inspecting his machine
and for having parts repaired or replaced when
continued use of the product would cause damage
or excessive wear to the other parts.

It is the user’s responsibility to deliver his machine
to the Yetter dealer who sold him the product for
service or replacement of defective parts, which
are covered by the warranty policy.

IMPORTANT: When raising 3 pt. Toolbars watch
tractor tire clearance. EXAMPLE: In most cases 3
pt. hitches require a cat. 2 or cat. 3 quick hitch
coupler to offset toolbar away from tractor tires.

YETTER MANUFACTURING CO.

309/776-4111
800/447-5777
309/776-3222 (FAX)

WARRANTY POLICY

Yetter Manufacturing warrants all products manufactured and sold by it against defects in material. This
warranty being expressly limited to replacement at the factory of such parts or products as will appear to
be defective after inspection. This warranty does not obligate the Company to bear cost of labor in
replacement of parts. It is the policy of the company to make improvements without incurring obligations
to add them to any unit already sold. No warranty is made or authorized to be made, other than herein set
forth. This warranty is in effect for one year after purchase.

Yetter Manufacturing warrants its own products only and cannot be responsible for damage to
equipment on which mounted.

2

SAFETY

A brief description of signal words that may be used in this manual:

CAUTION: Used as a general reminder of good safety practices or to direct attention to unsafe practices.

WARNING: Denotes a specific potential hazard.

DANGER: Denotes the most serious specific potential hazard.

SAFETY PRECAUTIONS

You can make your farm a safer place to live and work if you observe the safety precautions given. Study
these precautions carefully and insist that those working with you and for you follow them.

Finally, remember this: an accident is usually caused by someone’s carelessness, neglect or oversight.

WARNING

Never clean, lubricate or adjust a machine that is in motion. Always lower or block the implement before
performing service.

If the machine must be serviced in the raised position, jack or block it up to prevent it from accidentally
falling and injuring someone.

Do not allow riders on the tractor or implement.

Use speeds and caution dictated by the terrain being traversed. Do not operate on any slope steep enough
to cause tipping or loss of control.

Be sure all personnel are clear of the immediate area before operating.

Read and understand the operator’s manual and require all other persons who will operate the equipment to
do the same.

Be familiar with all tractor and implement controls and be prepared to stop engine and implements quickly in
an emergency.

CAUTION

Consult your implement and tractor operator’s manual for correct and safe operating practices.

Beware of towed implement width and allow safe clearance.

FAILURE TO HEED MAY RESULT IN PERSONAL INJURY OR DEATH.

TABLE OF CONTENTS

Cover Page…………………………………………………………………………pg. 1
Foreword……………………………………………………………………………pg. 2
Safety Symbols
and meanings………………………………………………………………………pg. 2-3
Table of Contents.…………………………………………………………………pg. 4
Torque Specifications..……………………………………………………………pg. 4
Assembly Instructions..……………………………………………………………pg. 5
Operation……………………………………………………………………………pg. 6
Maintenance..………………………………………………………………………pg. 6,9
Parts Identification…………………………………………………………………pg. 7-8
Trouble Shooting…..………………………………………………………………pg. 10-11

BOLT TORQUE

READ THESE INSTRUCTIONS FIRST:

1. Improperly tightened bolts will result in damage, breakage, expense, and down time.

2. Always replace bolts with the specified grade and type.

3. Torque properly before first use of the machine and every 2-4 hours of use until you are sure bolts
are staying tight.

4. The chart below is a guide for proper torque. Use is unless a specified torque is called out
elsewhere in the manual.

5. Torque is the force you apply to the wrench handle or the cheater bar, times the length of the handle
or bar used.

6. Use a torque wrench whenever possible.

The following table shows torque in foot pounds.

4

HEAVY DUTY COULTER INSTALLATION

NOTE: Mounting hardware included in 2960-145 bolt bag.

1. Attach the unit coulter assembly to the planter unit with the two ½-13 x 3-1/2” bolts and locknuts. As
supplied, the disc is set in the shallowest position, the blade will run at approximately the same depth as
the opener blades. Ensure that in operation the planter frame is at the correct height (20”-22”)

and level the tool bar.

2. To adjust the depth of the coulter blade relative to the opener, remove the 5/8” bolt through the hub
assembly, reposition and replace bolt. Tighten bolt securely. If assembly is removed note the position
of various spacers.

3. Assemble 2960-223 unit stops to upper parallel arms with 3/8-16 x 1-1/4” bolts and locknuts as shown in
illustration on following page.

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OPERATION

1. Set/mount coulter blades to run perpendicular to the soil. Operation depth and blade wear

can be affected if the coulter is mounted crooked or if the toolbar is not level side to side.

2. After a few hours of use, check all bolts for tightness and proper torque.

3. After a day of use (10-12 hours) check coulter hubs for loose bearings. There should be no

endplay in the hub bearings allowing the blade to wobble. If necessary, remove cotter pin
and adjust the slotted nut to remove wobble, recommended torque of 150 in. lbs. and re­insert cotter pin. If the wobble or looseness cannot be corrected, the bearings, cups and
seals will need to be replaced.

DO NOT USE WORN OR DAMAGED PARTS.

MAINTENANCE

LUBRICATION: USE #2 MULTI-PURPOSE LITHIUM GREASE

To ensure longevity and reliability of the 2960-020 coulter, the recommended
lubrication schedule should be followed using multi-purpose grease at hourly intervals
as indicated.

BEARING ADJUSTMENT:

1. Raise the toolbar until the blade is clear of the ground. Place a safety stand under the toolbar.
Remove the cotter pin, slotted nut, washer and bolt from the hub assembly. Remove the blade from
the hub assembly.

2. Remove bearing cones and seals from hub.

3. Wash the old grease from the hub, bearing cups, spindle spacers, seals and bearing cones. Inspect
the condition of the bearing cups, cones and seals. Replace if necessary.

4. Apply #2 multi-purpose lithium grease on each bearing. Make sure the space around each roller is
filled. Lubricate the bearing cups.

5. Position the bearing in the cup and install the seal. Lubricate the seal lips and proceed with re­assembly of the removed parts including the blade. Blade bolt torque is 90 to 96 ft. lbs.

6. Tighten the slotted nut to 150 in. lbs. or until a definite drag is felt when the blade is turned by hand.

Tighten the nut one slot position to line up the cotter pin hole with a slot. Secure the nut with a new
cotter pin.

PARTS IDENTIFICATION

6

PRODUCTION DATE 12/02-PRESENT

PARTS IDENTIFICATION

7

PRODUCTION DATES 2/92 – 11/02

SERVICE AND MAINTENANCE

FOR COULTERS PRODUCED 2/92 – 11/02

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The bearings in the hub of this coulter are a ‘MATCHED SET’ and therefore when repairs
are required it will be necessary to replace all six components of the bearing set. DO
NOT REPLACE INDIVIDUAL COMPONENTS OF THE BEARING. All of the components
of the bearing are matched by the bearing company to provide the correct range of free­play in the assembled unit.

The bearings may be cleaned and repacked with multi-purpose grease like any other
taper roller bearing setup so long as all the parts from each hub remain and return to the
same hub.

When installing a bearing set, the new snap rings supplied with the new bearing must be used.

IMPORTANT

USE ONLY

‘MATCHED SET’

TIMPKEN Bearing

#LM67048-902A1

LUBRICATION: To ensure longevity and reliability of the coulter, the lubrication
schedule should be followed using multi-purpose grease at 50 hour intervals and
re-pack each season.

TO UPDATE COULTERS PRODUCED 2/92 – 11/02 THE FOLLOWING KIT IS NEEDED

TROUBLESHOOTING

Problem

Cannot adjust coulter
depth shallow enough.

9

Cannot adjust coulter
deep enough.

Coulter will not
penetrate.

Coulter penetrates too
much.

Seed placement is too
deep.

Optional wavy blade
disturbs too much soil.

No spring tension.

Cause

Planter frame not set

correctly.

Coulter blade is too big.

Planter opener blades
worn.

Coulter blade worn too
small.

Lack of spring tension.

Excessive spring down
pressure.

Coulter blade set too
deep relative to openers.

Planter frame not level
front to back.

Soil too damp or loose.

Planter frame not set
correctly.

Broken springs.

Solution

Ensure that in operation
the planter frame is at
correct height (20”-22”)
and level the toolbar,
refer to opposite page.

Blade must be 14 5/8”
diameter.

Replace planter opener
blades.

Replace coulter blade.

Increase spring tension.

Reduce spring tension.

Shallow up coulter depth.

Raise the planter drawbar
to level planter frame.

Reduce ground speed.

Install a less aggressive
blade.

Check planter frame
settings, see above.

Replace broken or
damaged parts.

PLANTER HIEGHT ADJUSTMENT

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Figure A. – The planter hitch and frame are both 20” off the ground. To ensure this, visually
check to see that the planter boxes are level and that the planter unit parallel arms are also
parallel with the ground. When using planter attachments located in front of the planter unit,

this setting is very important.

Figure B. – The planter hitch is set too low while the planter frame remains at 20” off the

ground! Notice from the illustration that the unit mounted coulter is running deeper in the
ground than the planter unit. This condition can result in the formation of an air pocket
below the seed bed which will in turn dramatically decrease seed growth.

NOTE: Both illustrations are strictly for reference only. They are intended to show that proper
adjustment of the hitch height is critical. Consult your planter operator’s manual for the
proper height adjustment of the hitch.

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Our name

Is getting known

Just a few years ago, Yetter products were sold primarily to

the Midwest only. Then we embarked on a program of
expansion and moved into the East, the South, the West and
now north into Canada. We’re even getting orders from as far
away as Australia and Africa.

So, when you buy Yetter products . . .you’re buying a name

that’s recognized. A name that’s known and respected. A name
that’s become a part of American agriculture and has become
synonymous with quality and satisfaction in the field of
conservation tillage.

Thank you.

YETTER MANUFACTURING CO.

COLCHESTER, IL 62326-0358  309/776-4111

TOLL FREE 800/447-5777

FAX [phone]

WEBSITE: WWW.YETTERCO.COM

E-MAIL: [e-mail]

2565-635  03/08

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