the 6710 had auto sharpening however the previous owner sharpened threw a whole entire set of knives and got really irritated so he stripped it off now its a manual however the 6750 still has the auto sharpening and john deere says its up and working we will find out so since my last post everything was going great and getting ready to sharpen put the chain on the shaft and that 1/8th of an inch came back and bit me, come to find out the previous mechanic didnt install the correct sprocket for the application, we are 1/8th off on our chain, drum, and belts, so now trying the find the correct sprocket is proving to be more of a handful, back to the 6750 came back from john deere and did a complete service i did the annual and the 1000 hour so dropping all fluids/ filters. however the previous mechanic again came back and bit me again, none of the machines have ever seen a 1000 hour basic fluid drop so getting the fitting off of the tranny was a pain finally came off in two pieces and now that machine is now sitting waiting for parts along with the 6710 BASIC MAINTENANCE GOES along ways! however talking to washington tractor they inform me that this is not the only machine to snap the fitting so my fix is napa brand grease, its called Lubriplate NO. 105 motor assembly grease now im just putting a film on the two O-rings along with a film on the inside of the fitting(metal-metal no good) so after these deere can get to their feet we will finally be harvesting thank for all the info on this site we are running OEM Drum and bolts and just kooima knives this is my first time being around actual tractors and its fun learning curve
Brandon