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Have a lexion 480r and our horizontal unloading augers in hopper (2) one is bent. the one closest to cab bent other day. now bangs as unloading. This is second one in last 3 season. Just front one. Anyone else have this problem. thanks
Also put a new sunny brook cylinder and concave in. Works well. Problem is in wheat. Run a 30ft honey bee header in 70 bu wheat and can only do about 3 mph as over throws on rotors. Sample is clean and nothing on sieves. Run cylinder at 680 and rotor at 780. Can take more as only using about 60% engine. What needs to change thanks
 

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pete my guess would be your aps concaves, pull one out after you've done a littel &
check it's not blocked up, if this is the case i would go for larger grates here.
Without any more info thats were i would look first.
 

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If you have rotor loss speed up the rotors as fast as you can and try to remove as much grain as you can in the aps and cylinder before it gets to the rotors. Check to make sure you do not have filler plates in the rotor grates.
 

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I have a 480 and last year the tube of the front auger you are talking about broke. I ended up welding it a couple of times to get through the harvest. This year I took it out and got a machine shop to turn down an 18" long shaft to fit inside the tube and weld it up properly. This got it straight again and hopefully will be a permanent fix. I don't know why it broke or how common of a problem it is. I did lower the shields that cover the auger so that the far end of the auger has a lot less gap than the discharge end hoping the reduce the amount of stress on the auger.
 

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Have a lexion 480r and our horizontal unloading augers in hopper (2) one is bent. the one closest to cab bent other day. now bangs as unloading. This is second one in last 3 season. Just front one. Anyone else have this problem. thanks
Also put a new sunny brook cylinder and concave in. Works well. Problem is in wheat. Run a 30ft honey bee header in 70 bu wheat and can only do about 3 mph as over throws on rotors. Sample is clean and nothing on sieves. Run cylinder at 680 and rotor at 780. Can take more as only using about 60% engine. What needs to change thanks
I had a 480 for a number of years and broke the front grain tank auger about four times. I ended up slowing it down some by welding on a smaller sprocket which drives the unloading auger chain.
480 was replaced by a 580R which broke two of these front augers (before I touched it). Present one has been fixed similar to "hav'nfun". Claas tech says that they break.

On the subject of timing, every description and/or diagram I have looked at has been ambiguous at best. My tech and I interpreted things differently and after I showed him how I did it he conceded that he may have been wrong. So who knows? I think I do but my record would suggest otherwise!
Dave
 

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The tech marked all my sprockets so that if I did have trouble like a chain breaking it would be easy to put back on and have the augers timed
 
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