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Cracking noise at metering device.
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Seeds too big, e.g. beans.
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Remove tensioning sleeve from agitator shaft.
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Seeds have attracted moisture.
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Do not leave seed in hopper overnight.
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Seed rate changes by itself.
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Spindle for seed rate adjustment is loose.
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Tighten the nuts on the crank.
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Cell wheel is sticky.
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Clean the cell wheel; check the cleaning brush and replace if necessary.
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Fine seed: red gearwheel not engaged.
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Engage the red gearwheel.
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Fine seed: even with micrometering, seed rate does not drop below 4-5 kg/ha.
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Seal lip on metering housing has been eaten by rodents.
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Replace the seal lip.
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Seal lip not properly in contact with cell wheel.
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Adjust position of seal lip.
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Drill is delivering excessive amounts of seed.
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Handle turned too fast during calibration.
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Turn no faster than one revolution per second.
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Fine seed: red gearwheel not engaged.
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Select micrometering.
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Amount of seed delivered is too high or too low.
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Incorrect drive wheel ratio in drive housing.
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Check no. of gear-teeth against spare parts list.
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Incorrect setting.
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Set correctly.
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Error when weighing the seed.
|
Check the scales.
|
| Symptom |
Problem |
Solution |
|
Amount of seed delivered too low.
|
Micrometering is selected.
|
Switch off micrometering.
|
|
|
Fine seed: cells are dirty, cleaning brush is jammed.
|
Thoroughly clean cells and cleaning brush.
|
|
|
On 6-m version, the two metering devices are not calibrated for the same seed rate.
|
Each metering device must deliver the desired amount of seed (Kg/hectare).
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|
Seeds not reaching any of the openers.
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Venturi cone is blocked, drive shaft not connected.
|
Run the engine at correct speed, connect the drive shaft.
|
|
Track markers fold too quickly, too slowly or not at all.
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Restrictor missing in the hydraulic coupler.
|
Install restrictor.
|
|
|
Restrictor in the hydraulic coupler is blocked.
|
Clean the restrictor.
|
|
Both hydraulic track markers fold at the same time.
|
Sequence valve is defective.
|
Replace sequence valve.
|
|
Hose blocked with seed.
|
Openers are blocked (e.g. with soil). Normal seed: butterfly valve is set for fine seed.
|
Clean the blocked opener. Set the butterfly valve for normal seed.
|
|
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Hose bent, sagging or deformed.
|
Check hose inside and outside hopper. If necessary, make the hoses shorter.
|
|
|
Fan speed too low.
|
Make sure engine speed is correct.
|