Combines concave wedge

[tbran]

We zero the concave - top cross bar on upper threshing grate - and set the gauge (mid-min-max) to Mid when the clearance is 7_16" on front -2nd cross bar lower greate-. Then for wheat we go up 1 to 2 marks toward min via nuts on lower grate eyeboltes and set the grate just a little over 0 to whatever to get the job done. If one gets whitecaps still add fillter plates. If it is doing a good job try removing one at a time. Run cyl as fast as possible til crackage occurs. Remember speed cracks. Very seldom does clearance cause crackage.

 

[slims]

all of ours are at 7_16" at the bottom when at zero in the back. we have over 40 CDF's out and have not had any trouble with this setup

 

[mailman13]

Running as recommended in the CDF installation instructions, that is .6 to .75 inches at front grate bottom bar when 0 at first bottom bar of rear concave. I think mine is set right at 5_8 inch (.625). This is corn and soybeans only. Is the 7_16 you mention for corn and beans alsoIJ