18
12.0 TROUBLESHOOTING
Problem
Possible cause
Solution
Too much damage to the
soil to be treated.
Knives are damaged.
Try aligning the knives by
straightening them using a
hammer and anvil.
Knives are crooked.
Align the knives.
Mount new ones.
Machine is not in line with the
tractor.
Adjust the machine to align the
knives with the tractor.
Not driven in a straight line.
Try driving in a straight line.
Soil is too wet.
Postpone the job until the soil has
dried.
The aerator shaft is not
turning.
Cam-clutch is engaged.
Repeat starting procedure
Drive chain has broken.
Repair or replace the chain.
Gearbox damaged.
Repair or replace the gearbox.
Gearbox is leaking.
Seal is leaking.
Replace seal.
Cam-clutch is engaged
too much.
Cam-clutch is worn out
Too many stones or rocks.
Replace cam-clutch
Adjust the operating depth.
Ground is too hard.
Adjust the operating depth.
Driving speed is too high.
Adjust the driving speed.
PTO speed is too low.
Increase the PTO speed (rpm).
Machine is pushing the
tractor forward.
Tractor is too light.
Weigh down the tractor or choose
another type of tractor.
Driving speed is too high.
Adjust the driving speed.
Soil is insufficiently
aerated.
Too fast driving.
Drive more slowly.
Soil is too wet.
Postpone the job until the soil has
dried.
PTO speed (rpm) is too low. Raise the PTO speed (rpm).
Knives are bringing up
too much soil.
Knives are crooked.
Align the knives.
Mount new ones.
Soil is too wet.
Postpone the job until the soil has
dried.
