You will have to remove the long belt on the right side that drives the cross shaft, then remove the cross shaft that drives the augers. Set everything out as it comes off, I find it handy to take a picture on cell phone, for reassembly. Chances are you will have to torch some or all the bearings out, so open the hinged door below the augers & clean the pan out to reduce risk of fire when cutting. Then i always use anti-seize when reassembling. Take a good look at the bevel gears for wear as well as keyways in the cross shaft, & replace if necessary. I think the gears are held on the augers with roll pins. Then clean behind the bearings every year after you're done.

 

Also, the gears on the cross shaft are held by the clamps with a 3/8" bolt & there are keys between the shaft & gears. The clamp has to be positioned correctly so the keys can't work out. I would also check the wood blocks on the upper end of the augers. If the blocks are too worn, the auger tube can be cut off from metal to metal contact.

 

You will for sure need a torch to heat the bearing housings or bearing even to get them out, ive had to cut bearings from the augers before. A good chisel, and a short handled hammer with a heavy head incase to have to get back in behind them and drive them out. I just changed the bearing that are on the outer most part of the machine where the chain drives the unload system. And my combine is in the 80's. I would think you will for sure need a torch on a 60's model. oh and and a flat file to clean back up what your chisel may had scuffed up. If u clean everything back up real well, (auger shaft,bearing housing) it will make reinstallation ALOT easier.

 

No disrespect intended but I believe the 6600 series was not made until around 72' that aside, check the ends of the back where the go into the wood blocks carefully the auger is just a tube and they will ware thin and start to collapse and pound on the shield under the augers and ware it through then you have a problem usually you can cut the wore out part off an replace it with a stub shaft welded in place you will need to use a lathe to cut the shaft to fit it in the tube.

 

If you are just replacing the auger bearings, all the cross shaft and belt and such doesn't need to come off. Just knock out you roll pin and take your lock collar off. You can drive the tube back with an air hammer. This only works about half the time but it may save you a lot of time if it works.