Yetter 2000 Series Vertical Tillage Tool (V.T.T.) - Manual (Page 28)

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OPERATION
WARNING:
Do not allow children to operate this equipment. Do not allow riders on the
tractor or implement. Failure to heed may result in personal injury or death.
IMPORTANT: Do not operate the coulter depth so deep that the coulter hubs are in the soil, this will
cause premature bearing failure.
Yetter Model 2000 Series Vertical Tillage Tool ¥ coulters are designed for tillage 3” to 5”
deep and to be operated 6-10 mph.
• During assembly, the coulters should be set up to swivel. This reduces the side load on the coulter
during operation.
• Set/mount coulter blades to run perpendicular to the soil. Operation depth and blade wear can be
affected if the shank is mounted crooked or if the toolbar is not level side to side.
•
After a few hours of use, check all bolts for tightness and proper torque.
•
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 hubcap and cotter
pin and adjust the slotted nut to remove wobble. Recommended torque of 15 ft lbs. 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.
IMPORTANT:
For proper operation, the Vertical Tillage Tool¥ frame must operate level.
• Level the toolbar frame so that the coulter blades are the same depth front to back and side to side.
In hard no-till conditions the desired operating depth may not be possible. Tighten spring nut might be
necessary, to maintain tillage depth.
Vertical Tillage Tool¥ machine weight may limit operating depth in hard conditions. Use enough ballast to
keep the transport wheels on the ground during operation.
If needed, add ballast or weight to
maintain coulter blade depth.
Drawbar Height
The Yetter 2000 Series Vertical Tillage Tool tm is designed to operate on tractors with drawbar heights from
18” to 22” from the ground to the top of the drawbar. On certain tractors the drawbar can be turned over to
obtain the correct height. Proper operation of the V.T.T. requires that the frame is level: front to rear as well
as side to side.