Yetter 2920 Disc Sealer User Manual

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2920-012 DISC SEALER 12” SMOOTH

2920-015 DISC SEALER 13” RESIDUE WHEEL

2920-016 DISC SEALER 16” SMOOTH

2920-016-N DISC SEALER NOTCHED

2920-016-ST DISC SEALER SHARK TOOTH

2920-021 DISC SEALER FOR 2995/2996 16” SMOOTH

OPERATOR’S MANUAL PARTS IDENTIFICATION

2565-412_REV_C 12/11

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

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BOLT TORQUE

Mounting bolts and hardware

Before operating the Disc Sealer for the first time, check to be sure that all hardware is tight. Check all hardware again after approximately 50 hours of operation and at the beginning of each season.

All hardware used on the Disc Sealer is Grade 5 unless otherwise noted. Grade 5 cap screws are marked with three radial lines on the head. If hardware must be replaced, be sure to replace it with hardware of equal size, strength and thread type. Refer to the torque values chart when tightening hardware.

Important: Over tightening hardware can cause as much damage as when under tightening. Tightening hardware beyond the recommended range can reduce its shock load capacity.

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

Torque is the force you apply to the wrench handle or the cheater bar, times the length of the handle or bar. Use a torque wrench whenever possible.

The following table shows torque in ft. lbs. for coarse thread hardware.

Lubricate all bearings and moving parts as assembled and make certain that they work freely.

WARNING: Never work around the toolbar/implement while in a raised position without using safety lockups.

CAUTION: The Disc Sealer attachments are very heavy. Pay extra attention to lifting techniques while handling and or maneuvering the opener during assembly. Failure to do so may lead to personal injury.

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ASSEMBLY

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. Example: knife at 6” depth, set the blades to 4” above the bottom of the knife. Adjust the blade pitch as needed to cover the knife track with soil. Tighten all hardware to the recommended amount of torque unless otherwise stated.

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