Check here for the latest tips on servicing your Great Plains Implement.
Do NOT apply petroleum-based products on any plastic components. The petroleum expands the plastic, causing high torque loads on drives and can restrict pivot points.
Mechanical jaw clutches, like those used on Min-Till Drills, are a simple, positive means of engaging and disengaging seed drives. Grease them sparingly or use a graphite spray. "Over-greasing" can draw in dirt and foreign material that will form a thick paste. This paste can then cause the clutches to stick together, which prevents them from engaging. As the clutch tries to force itself apart, damage can occur to linkages, bearings, and bearing mounts due to the excess side load. If a clutch is sticking or is over-greased, remove and disassemble the clutch and clean it thoroughly.
To set the depth on a Drill or piece of Tillage Equipment, there is a stroke control valve used to hydraulically stop the field lift system at a consistent point. Set the flow of the tractor remote valve for less than 8 gpm. Excessive flow can damage this valve and cause it to not function correctly or develop a leak. In most cases, when the valve is leaking or damaged, you can purchase a replacement cartridge to rebuild it.
To get the most accuracy with any Great Plains Drill, calibration is a must. Seed rate charts that are supplied with the unit or found on-line should be used as a starting point only! Follow the operator’s manual closely when performing the calibration. The time spent on this step can save valuable seed and time if the drill is not set properly before going to the field.
Seed Cup Calibration
To ensure even seeding across the drill, and to verify scale setting to seed cup positioning, a periodic seed cup calibration should be performed per the following: