2920 SERIES MAX SEALER PLUS™ OPERATOR’S MANUAL PARTS IDENTIFICATION 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.
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.
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 those working with you and for you follow the precautions. Finally, remember this an accident is usually caused by someone’s carelessness, neglect or oversight. 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.
INTRODUCTION The 2920 MAX SEALER PLUS™ disc sealer has been designed for the operators who demand durability, longevity and performance in the field. The 2920 MAX SEALER PLUS™ has adjustable blade pitch to match the changes in soil tilth. The unit is heavy enough to fill the knife track and flexible enough to not cut a trench for water to start erosion. The 2920 MAX SEALER PLUS™ has independent arms to allow the blades to follow the roughest terrain and maintain soil flow to cover the knife track.
GENERAL INFORMATION Note: Right Hand and Left Hand designations are based on sitting in the tractor and facing forward. 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.
ASSEMBLY STEP 1. Attach the 2920-115 swing arm assembly to the shank/bracket using the appropriate u-bolts, flat washers, lock washers and hex nuts or the ½” bolts and lock nuts. STEP 2. Attach the 2920-117 Arm Hub Assembly to the 2920-115 Swing Arm using the ½” carriage bolts, flat washers, lock washers and hex nuts.
ASSEMBLY STEP 3. Attach the blade to the 2920-117 Sealer Arm Hub Assembly using the 4) ½” x 11/2” carriage bolts, lock washers and hex nuts. Curved blades can be used with the cup “in” toward the knife for the most aggressive adjustment or with the cup “out” away from the knife for a less aggressive adjustment. STEP 4. “Barn Yard Setting” – set the sealer blade to 2” closer to the bottom of the knife than the depth that the knife will be used at.
MAINTENANCE Lubrication: Use #2 multi-purpose lithium grease. To insure longevity and reliability of the MAX SEALER PLUS™ the recommended lubrication schedule should be followed. BEARING ADJUSTMENT Tighten the slotted nut to 10 to 15 ft/lbs. or until a definite drag is felt when the blade is turned by hand. Tighten the nut one slot position to align the slot with the hole in the spindle shaft. Secure the nut with a new cotter pin. Install the hubcap. BEARING REPLACEMENT 1.
PARTS IDENTIFICATION 9
PARTS IDENTIFICATION 10
PARTS IDENTIFICATION 11
PARTS IDENTIFICATION 12
PARTS IDENTIFICATION 13
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TROUBLESHOOTING Problem Cause Solution Poor overall performance. Toolbar not adjusted correctly Adjust the toolbar so that during operation it is level. Max Sealer Plus not creating a mound or too small of a mound. Speed too slow. Operate at 5mph min. Blades are not set aggressively enough Increase the angle of the front edge of blade to the row. Toolbar is not level-probably nose down Level toolbar. Blades are not set aggressive enough. Curved blades the “cup” should be in toward the knife.
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.
