256 00 0293 210 2 - BA DOMINATOR 150/140/130 - 12/09
12 Faults and remedies
12.9 Grain delivery
67088
• Grain losses caused by insufficient threshing • Adjust the cutterbar so that even feeding of the
threshing parts is achieved.
• Adjust threshing drum speed to suit crop conditions.
• Set the concave clearance to suit the crop.
• Add disawner plates if required.
• Provide for even crop feed to the threshing parts.
• Correct basic adjustment of concave.
• Have damaged or worn threshing drum repaired
• Grain losses over the straw walkers • Adjust tension of the belt driving the intensive sepa-
ration system.
• Adjust tension of the belt driving the straw walkers.
• Ensure even feeding of threshing parts (front
attachment).
• Clean concave and space behind it.
• Avoid excessive returns by correct adjustment of
cleaning unit.
• Clean dirty straw walkers and under-walker return
floor.
• Reduce drum speed and reduce concave-to-drum
clearance.
• Reduce ground travel speed.
• Provide correct position of deflector curtain above
straw walkers.
• Have deflector curtain above the straw walkers
replaced.
• Grain losses over the cleaning stage • Avoid excessive matting.
• Adapt air blast to meet crop conditions.
• Adjust wind boards to correct position.
• Decrease drum speed when short straw overloads
the sieve pan.
• Check fan variable-speed pulleys for smooth
operation.
• Standard cleaning system:
Adjust returns passthrough area of upper frogmouth
sieve wider open.
• Adjust frogmouth sieve gaps wider open and
increase air blast.
• Avoid excessive returns.
• Clean upper sieve, lower sieve and preparation
floor.
• Reduce ground travel speed.
Malfunction Cause, remedy
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