Great Plains LS12 Operator Manual - Manual (Page 20)

LS10 and LS12
117-055M 3/20/06
18
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 17.
Adjust flow control on hydraulic drive. Refer to “Seeding Rate Adjust-
ment,” page 16.
Calibrate flow to hydraulic drive when drill box is full of seed.
Refer to “Seeding Rate Adjustment,” page 16.
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 12.
Excessive seed cracking Position seed-cup handles to a lower notch. Refer to “Seed Cup
Doors,” page 16.
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 12.
Drill box not emptying evenly Certain models do not have the same number of cups between each
divider of bulkhead. The section with more cups will empty sooner.
Troubleshooting