Troubleshooting – Great Plains NG12 Operator Manual User Manual

Page 18

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NG12

202-457M

8/5/2004

Problem

Solution

Actual metering rate is different than
desired

Check seed-rate chart for proper seed-cup-shaft rpms for your seeding
rate. Refer to “Seeding Rate Chart,” page 15.

Adjust flow control on hydraulic drive. Refer to “Seeding Rate Adjust-
ment,” page 14.

Calibrate flow to hydraulic drive when drill box is full of seed.

Refer to “Seeding Rate Adjustment,” page 14.

Check that seed-cup shaft is rotating is in the correct direction. If not,
reverse direction of flow to hydraulic drive by switching hoses at trac-
tor outlets. Refer to “Hydraulic Hookup,” page 11.

Add powdered graphite to the seed mixture. This helps the seed flow
more uniformly.

Troubleshooting