Troubleshooting - MacDon C Series Operator's Manual

Troubleshooting

13 Troubleshooting
In this chapter, the most often occurring problems were listed. Of course all possibilities
cannot be listed, so please, if you encounter a phenomenon that is not listed in the ta-
ble, or the specified solution proposals prove to be insufficient, please call our customer
support!
Possible causes
Problem 1.
A large quantity of grain ears are between the gathering auger and feeder house.
The combine was not properly assem-
bled for corn harvesting.
Problem 2.
In laid or lodged corn stalks, the stalks do not feed properly into the snapping rolls.
In some cases the rubber ears equipped
on the plastic covers may prevent the
stalk from getting into the snapping unit.
Problem 3.
Snapping unit can get clogged.
The corn stalk thickness and variety of
stocks may change.
The gathering chain may slip.
Problem 4.
Stalk or weed is winded up on the snapping roll.
Set plough gaps.
Problem 5.
Gathering auger does not rotate.
Check setting of the auger drive torque
limiting clutch.
The auger is overloaded.
Problem 6.
Ears split from gathering hollow.
The gathering auger speed is too high.
60
Solution suggestions
Make sure that the combine was as-
sembled for corn harvesting in accord-
ance with the instructions. If it was, ex-
pand concave gap to about 60 mm.
See the specification written in the com-
bine's operator's manual!
Remove rubber ears from the plastic
cover! (see: Chapter 10)
Set the snapping plate to an optimal dis-
tance! (see: Chapter 8.5)
Check the chain adjuster's settings!
Replace the gathering chain!
Set snapping roll gaps!
8.6)
Check the safety switch if necessary,
replace the friction pads!
8.2)
Decrease the quantity of the crop by
decreasing the speed of the combine;
adjust the position of the auger.
With sprocket-exchanged, reduce the
gathering auger speed!!
(see: Chapter 8.2)
(see: Chapter
(see: Chapter