I agree with cornstalks on the hours. Use to be we never had to do much to our AF combines until they got to around 2,000 hrs. Now it seems we are replacing those components at 1,250 -1,500 hrs.. Not sure if it's because of more volumne going thru the machines of the quality of parts are not as good as they use to be.
We have an '02 2388 that had around 2,300 engine hursa when we started this fall. In '07 we spent over $12,000 on repairs but that did include a new AFX rotor prior to the strt of the year. In '08 we spent around $15,000 in repairs, a lot of which was a complete new unloading system. This year we spent over $25,000 prior to the beginning of harvest but that did include about $10,000 for a Field Tracker & 3rd hyd lift cylinder. All work was done by us except for the installation of the rotor & thework done prior to harvest this year which was done thru our CIH dealers CMI program.
We're running about 2,400 ac of corn & beans thru this machine per year.