Troubleshooting – Great Plains 3N4010HDA Operator Manual User Manual
Page 54
196-444M
2013-09-24
50
3N-4010HDA
Great Plains Manufacturing, Inc.
Troubleshooting
Problem
Cause
Solution
Planting too much
Excessive overlap
Adjust marker, page 21.
Seed meter incorrectly set
Verify initial setting, calibration and double-
check meter box flute “stars”.
Seed size and/or density varies from
charts
Calibrate air cart seed meter for your seed.
Setup sprockets incorrect for drill
Check tooth count in air cart Operator man-
ual.
Meter flutes damaged
Open meter box calibration door, inspect and
replace as needed.
Actual field size is different
Verify field size.
Planting too little
Excessive field speed
Slow down.
Seed meter incorrectly set
Verify initial setting, calibration and double-
check meter box flute “stars”.
Seed size and/or density varies from
charts
Calibrate air cart seed meter for your seed.
Setup sprockets incorrect for drill
Check tooth count in air cart Operator man-
ual.
Fan speed too low
Increase fan speed. See page 29.
Plugged primary or secondary seed
tube
Disconnect tubes at clamps. Inspect and
clear.
Obstruction in meter
Unload hopper and clear obstruction.
Hopper vent line plugged
Clear any top obstruction. Unload hopper and
clear any low obstruction.
Plugged opener seed tube
Lift drill, inspect and clear tube.
Contaminated seed
Use new clean seed.
No Seed Flow
Fan not operating
Check selector and shut off valves, and
hydraulic flow to cart
Lift switch mis-adjusted or malfunction-
ing
Check that air cart clutches cycle with switch
operation. Readjust switch engagement point
(page 60).
Clutch failure
Lower drill to engage lift switch and cart
clutches. Clutch-to-gearbox chain should be
impossible to move (using calibration crank) if
clutch is engaged.
Chain break
Check all four stages of chains from cart
wheel to meter boxes.
Gearbox set to 0 or malfunctioning
Open air cart meter box calibration door and
check for seed flow using calibration crank.
Seed run-out
Check seed hopper.