Yetter 2996 User Manual
FERTILIZER COULTER
MODEL 2995/2996
SET-UP & PARTS MANUAL
YETTER MANUFACTURING CO.
FOUNDED 1930
Colchester, IL 62326-0358
Toll free: 800/447-5777
309/776-3222 (Fax)
Website: www.yetterco.com
E-mail: info@yetterco.com
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.
We hope your new Yetter products will help you
achieve both goals-increase your productivity and
increase your efficiency so that you may generate
more profit.
This operator’s manual has been designed into
four major sections: Foreword, Safety
Precautions, Installation Instructions and Parts
Breakdown.
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 and 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.
If you are unable to understand or follow the
instructions provided in this publication, consult
your local Yetter dealer or contact:
YETTER MANUFACTURING CO.
309/776-4111
800/447-5777
309/776-3222 (FAX)
WARRANTY
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 shall 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.
Dealer ___________________________________________________
Yetter Manufacturing warrants its own products only and cannot be responsible for damages to
equipment on which mounted.
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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 they be followed by those working with you and for you.
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 machine must be services 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.
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YETTER MODEL 2995/2996
FERTILIZER COULTER
CLAMPS
Part No. Description
2990-153 Clamp Kit, 2” Sq. Bar
2990-154 Clamp Kit, 2 1/2” Sq. Bar
2990-155 Clamp Kit, 2 x 6 Bar
2990-156 Clamp Kit, 4 x 4 Bar
2990-157 Clamp Kit, 5 x 7 Bar
2990-158 Clamp Kit, 7 x 7 Bar
2990-159 Clamp Kit, 3” Dmd Bar
2990-160 Clamp Kit, 3 1/2” Dmd Bar
2990-161 Clamp Kit, 3 x 7 Bar
2990-162 Clamp Kit, 2 1/2” Sq., 1/2” Spacer
2990-163 Clamp Kit, 3” Sq. Bar
2990-166 Clamp Kit, 2 1/4”,2 1/2” Dmd Bar
2990-171 Clamp Kit, 3 x 4 Bar
2990-172 Clamp Kit, 4 x 6 Bar
2990-173 Clamp Kit, 6 x 4 Bar
2990-174 Clamp Kit, 7 x 5 Bar
2990-175 Clamp Kit, 7 x 4 Bar
2990-181 Clamp Kit, 4 x 10 Special
2990-182 Clamp Kit, 4 x 7 Bar
6300-105 Clamp Kit, 5 x 5 Bar
FERTILIZER KNIVES
2975-232 Dry Fertilizer Knife
2975-220 Liquid Fertilizer Knife
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SHANKS
Part No. Description
2990-208 Shank, 12 5/8” Long, 3” Offset
2990-221 Shank, 27” Long, 3” Offset
2990-310 Shank, 12 5/8”
2990-318 Shank, 16”
2990-328 Shank, 26”
2990-342 Shank, 18” Long, 3/4” Offset
2990-350 Shank, 27 1/8”
2990-353 Shank, 22” Long, 3/4” Offset
2990-354 Shank, 18” Long, 5 1/2” Offset
2990-370 Shank, 30” Long
2990-377 Shank, 15” Long, 5 1/2” Offset
3010-303 Shank, 22”
3011-302 Shank, 22” Long, 5 1/2” Offset
6300-331 Shank, 19” Long, 3/4” Offset
OPTIONAL EQUIPMENT
2975-120 Gauge Wheel Kit
2970-133 Knife Scraper 17”
2976-133 Knife Scraper 20”
INSTALLATION
1. Assembly 3/8 x 2-1/2” roll pin into hole closest to end of 1-1/2” diameter shank, leaving approximately equal
amount protruding out each side. For 12-5/8” shank, end without hole is upper end.
2. Insert lock collar into pivot casting and slide shank up through casting and lock collar. If you wish to lock coulter
from pivoting, slide roll pin into slots in casting. If you wish to let coulter pivot, do not align roll pin with casting
slots, but slide shank up till roll pin contacts casting surface. Install and tighten 5/8 x 1” setscrew in lock collar to
110 ft. lb. torque maximum.
3. Mount 17” coulter blade loosely to hub using four 1/2 x 1-1/2” carriage bolts, lockwashers and nuts.
4. Mount fertilizer knife and spacer block to rear support arm using two 1/2 x 3-1/2” Gr. 8 bolts, hardened flatwashers
and lock nuts. Place shims between knife and support arm as required to align knife point with blade.
5. Center blade on hub by rotating blade and watching clearance between knife and blade. Slide blade on hub as
required until the blade runs concentric, no run out on diameter. Tight four 1/2” nuts. The disc blade must run
concentric.
6. Adjust knife clearance to blade as close as possible. The high point of the blade should just clear the knife as
blade is rotated. Be sure blade rotates freely then tighten two 1/2” locknuts to 120 ft. lb. Re-check clearance, by
rotating blade one full revolution, after all bolts are tightened. See page 7.
7. Assemble clamp components loosely to planter front bar as shown in parts view of appropriate clamp.
8. Position coulter clamps either toward the inside or outside of the planter openers on each side of the planter to
equalize draft. Tighten four 1/2” nuts to secure the clamps.
9. Install coulters on planter by inserting shank up through clamps and tightening 5/8 x 1” setscrews.
10. Install 5/16 x 2-1/2” cotter pins in all vertical 1-1/2” diameter shanks. This cotter pin prevents loss of coulter should
the clamp setscrews work loose. Cotter pin can be installed between clamp castings or on top, above top casting
depending on shank.
11. Set coulter depth by loosening setscrews in clamp castings. For John Deere 7000 front fold planters there may not
be enough up adjustment to operate coulter at proper depth, not more than hub deep. Not all toolbars on John
Deere planters operate at the same height. If necessary, cut off top of 1/12” diameter shank to allow proper
adjustment.
12. On John Deere 7000 front fold planters there are two hoses that may interfere with coulter operation. Loosen
hydraulic fittings and swivel hoses up out of the way to provide clearance when coulter flexes up.
13. If you have elected to let coulter swivel, set lock collar to allow swivel in one or both directions as required. If you
have elected to hold coulter rigid, set coulter straight with the direction of travel. Tighten set screw to 110 ft. lb.
torque maximum.
14. Set spring tension by adjusting 3/4” lock nut until 1/8” of threads are exposed above the nut. Tighten 3/4” locknut if
greater spring pre-load is required.
15. Grease three fittings on each coulter before operation. The hub bearings should be greased only a few times each
season. Do not forget the lower parallel arm grease zerk.
16. NEVER mount coulters under planter drive shaft to allow coulter blades to contact shaft when an obstacle is struck.
Coulters must be mounted so blade can always flex up and clear drive shaft.
NOTE: Dry fertilizer must be free of chunks greater that 1/4” in size to prevent plugging. Yetter
recommends using screened fertilizer or running fertilizer through screen when hoppers are filled. Clean
hoppers thoroughly at the beginning of season to prevent plugging problems.
The rubber dry fertilizer tube may appear to be ‘stretched’ when the planter is in the transport position.
This does not affect operation of the planter and should not be detrimental to the fertilizer tube.
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OPERATION PRECAUTIONS
STOP
Read this before using the Yetter product.
- MACHINE OPERATION
IMPORTANT: failure to properly set the planter frame height and
levelness can result in less than successful operation of the planter
and the Yetter product and may result in damaged equipment. All
operators should read and thoroughly understand the instructions
given prior to using the Yetter product.
NOTE: DO NOT use this product if the planter is not adjusted properly!
Leveling the planter:
With the planter lowered to proper operating height (Usually 20”-22”).
Read the planter operator’s manual for recommended setting. Check to
be sure the toolbar and row unit parallel arms are level fore and aft. Re-
check when the planter is in the field and has been fully loaded with seed,
fertilizer, granular chemicals, etc. Also, a field check with a bubble level on
the frame should be made of the hitch height to ensure level operation front
to back.
It is important for the planter to operate level laterally. Tire pressure must be
maintained at pressures specified by the manufacturer.
Field and actual planting conditions change and will dictate planter frame
heights. You must ensure that the row unit parallel arms are approximately
parallel with the ground.
IMPORTANT: For proper operation of the planter attachments and row
units, it is imperative that the planter toolbars and row unit parallel arms be
level side-to-side and front-to-rear. The toolbar frame should operate at a
20”-22” height from the planting surface. Check the manufacturer’s
operator’s manual for instructions on how to adjust the frame height and
levelness.
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