Great Plains CTA4000 Operator Manual - Manual (Page 26)

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Section 4 Troubleshooting
CTA4000 Air Drill Implement 160-269M 2/1/06
Great Plains Mfg., Inc.
Secondary seed hoses are plugging. Increase fan speed. Refer to Field Operations, “Operating Instructions,” page
16.
Check hoses for damage and replace if necessary.
Check for debris in seed that is too large for hose.
Take up extra slack in hoses. Leave just enough slack for wing down flex and
opener-body travel.
Reroute hoses so there are no sharp bends.
Primary seed hoses are plugging. Increase fan speed. Refer to Field Operations, “Operating Instructions,” page
16.
Check hoses for damage and replace if necessary.
Reroute hoses so there are no sharp bends.
Check for surging oil flow from tractor.
Check if metering system is not shutting off when fan is off, filling primary
hoses with seed. If so, fan hydraulic pressure switch (part number 823-083C)
may be faulty or improperly adjusted. Refer to the cart parts manual for pres-
sure-switch location.
Press wheels not compacting soil as
desired. Reset press wheels. Refer to Press Wheel Adjustment, “Adjustments,” page
20.
Increase down pressure on disk openers. Refer to Opener Down Pressure,
“Adjustments,” page 19.
Press wheel or openers plugging. Check soil conditions–may be too damp.
Decrease down pressure on openers. See Opener Down Pressure, “Adjust-
ments,” page 19.
Do not back up with openers in ground.
Do not stop and allow drill to roll backward with openers in ground.
Check optional Seed-Lok wheels. Lock up wheels if soil conditions are too
wet. Refer to Seed-Lok, Adjustments, page 22.
Opener disks not turning freely. Check for trash or mud build-up on disk scraper.
Check if scraper is too tight, restricting disk movement. Refer to Disk Scraper
Adjustment, “Adjustments,” page 22.
Check disk bearings.
Check opener frame for possible damage.
Check if opener disks turn freely by hand but not in field; if so, reduce down
pressure on disk opener. Refer to Opener Down Pressure, “Adjustments,”
page 19.
Check if press wheels are adjusted too high. Refer to Press Wheel Adjustment,
“Adjustments,” page 20.
Problem Possible Solutions