KUHN AXERA-M, Operator'S Manual

Page: 36 / 46

36
12. Fault diagnosis
Uneven spread pattern
♦
Remove fertilizer build-up around spreading discs, disc vanes and shutter outlets.
♦
Check disc and disc vane positions correspond correctly with spreading charts.
♦
Make sure open/close shutter slide is fully open.
Too much fertilizer within tractor tracks
♦
Check disc vanes and shutter outlets. Replace any defective parts immediately.
♦
Fertilizer granules have a smoother surface than those tested for the spreading
charts. Check disc vane position.
♦
Check position of output point (see chapters 3.4 and 3.8)
Too much fertilizer in overlapping zones
♦
Fertilizer granules have a rougher surface than those tested for the calibration
charts. Check disc vane operation/position.
♦
PTO speed is higher than what the tractor tachometer indicates. Check rpm.
♦
Check position of output point (see chapters 3.4 and 3.8).
Spreading application higher on one side than the other
♦
Check that metering slides are opening equally.
Fertilizer flow to spreading discs is uneven
♦
Check agitator and replace if necessary.
♦
Fertilizer has formed a bridge over the shutter outlet.
Spreading discs are "fluttering"
♦
Check synthetic disc hub nut is correctly tightened into position.
Hopper empties unevenly even though both right- and left-hand sides have been
equally used
♦
Check that both metering slide positions are equal and that both open/close shutter
slides are fully open.
Hydraulic cylinder does not open
♦
Open/close shutter slide has too much resistance. Check shutter, levers and pivot
points are free and adequately lubricated.
Agitator does not function
♦
Increase tightening pressure of brake locking nuts. (U-form flat steel that half
encloses the agitator shaft, which is attached under the fertilizer spreader bolts.)