Case-IH 16/21/23 Series Combine Settings

Case-IH Trouble Shooting

The most critical aspect of setting up a Case-IH axle flow combine and Stripper Header is ensuring that an even load of material is maintained across the full width of the sieve from the rotor and that the material is split evenly between the rotor and sieves for separation. The direction of the rotor naturally tends to load the left side of the sieve, this then leads to losses on the left side and under-utilisation of the right side of the machine. In order to create an equal loading the concaves must be centralised on the rotor, then it may be necessary, particularly in rice to fit a second paddle to the left side shoe feed auger.

The combine is not feeding smoothly
Ensure that the distance between the header auger and feeder chain is minimised using the adaptor plate tilt adjustment.

Combine rotor loss is experienced
Raise concaves to ensure grain is forced through, adjust rotor speed & check grain loss monitor. It may become necessary to retard the veins above the rear section of the rotor.

Combine sieve loss is experienced
Generally opening up the sieves more and increasing the fan speed will give greater sieve capacity, ensure that the balance is correct of splitting the load between the sieves and rotor, it may be that the rotor is way under capacity yet you are overloading the sieves. In this case it will be necessary to fit more blanking plates
or interuptor bars in the rotor to prevent such a high proportion of material falling onto the sieves.

Unthreshed heads appear in grain sample
In this case it will be necessary to either close the concave a little to provide better threshing or fit additional blanking plates or interuptor bars. In particularly tough threshing varieties it might be beneficial to close the bottom sieve and run these unthreshed heads through the combines return system.