Great Plains ADI445 Operator Manual - Manual (Page 40)

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Section 4 Troubleshooting
Model 2250 Air Drill Implement 160-192M 5/11/05
Great Plains Mfg., Inc.
Planting depth varies between sections. Gauge wheel cylinders need rephasing. See Implement Lifting System, in the
“Operating Instructions” section on page 30.
Gauge wheel cylinders have air in them. See Bleeding the Hydraulic Lifting Sys-
tem, in the “Assembly and Setup” section on page 16.
Check air pressure in gauge wheel tires. Make sure tires are properly inflated.
Implement is out of level. See Side to Side Frame Leveling, in the “Assembly and
Setup” section on page 19.
One of the gauge wheel cylinders is the wrong size. Make sure part numbers
stamped in the rod end castings of the cylinders reflects what schematic on page
14 shows.
Wing fold cylinders are not fully extended.
Implement creeps up or down in different
sections during field operation. Gauge wheel cylinders have air in them. See Bleeding the Hydraulic Lifting Sys-
tem, in the “Assembly and Setup” section on page 16.
Leaky gauge wheel cylinder. If a cylinder is leaking oil past the piston. See the
parts manual (part number 160-192P available from your Great Plains dealer) for
seal kit and service information.
Metering system won’t shut off when
making headland turns. Cam clamp or electric clutch switch has come loose. See Electric Clutch Height
Switch, in the “Adjustments” section on page 33.
Seed emergence to the side of the press
wheel track. Press wheels and openers are not aligned. If whole gang is off, move press
wheels.
Turning sharply with the openers in the ground may bend openers.
Seed being scattered on the ground
behind the drill. Seeding depth too shallow.
Fan speed too high.
Drilling too fast.
Opener partially plugged with dirt.
Problem Solution