GREAT PLAINS d LS12, Operator'S Manual, Page: 19 / 32

LS10 and LS12 Table of Contents Index Troubleshooting
Great Plains | 117-055M | 5/6/19 Table of Contents Index 15
Troubleshooting
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 ” on page 14.
Adjust flow control on hydraulic drive. Refer to “ Seeding Rate Adjustment ”
on page 13.
Calibrate flow to hydraulic drive when seeder box is full of seed.
Refer to “
Seeding Rate Adjustment ” on page 13.
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 tractor outlets. Refer
to “
Hydraulic Hose Connections ” on page 9.
Excessive seed cracking
Position seed-cup handles to a lower notch. Refer to “ Seed Cup Doors ” on
page 13.
Check that seed-cup shaft is rotating in the correct direction. If not, reverse
direction of flow to hydraulic drive by switching hoses at tractor outlets. Refer
to “
Hydraulic Hose Connections ” on page 9.
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.