Posted by steve terplak on July 15, 2016 at 19:02:18 from (162.72.14.70):
Hey guys, I posted a couple days ago with some questions about the gearbox of a 479 Haybine as we had quite a bit of slop in the shaft at the end of the PTO drive...so in taking that apart the question became how to remove the bearing races and spacer and, as stated on here, in order to remove that part of the drive, the gear on the other shaft would have to be removed as well. In looking, we determined the best way to approach this was the remove the retainer ring on the shaft, remove the four bolts holding the gearbox on and slide the gearbox off the shaft and disassemble from there. So far, very successful. Decided since we were going that far, we would replace the bearings on both shafts in the gearbox and also do the belt that drives the cutter bar as it is cracked and worn - original from new in the mid-70's.
So here are my two questions:
1. Could someone describe the process for belt replacement - any tips/tricks. It looks like we can feed it into the hole for the gearbox to squeeze it around the upper pulley, but it looks like the lower drive will be a little more difficult...
2. Anything else we should. Consider replacing while we are at it. Chains on the sprockets seem to all be relatively tight. Though it is an old machine, it is pretty well kept - been here since new, mows 65 acres a year, generally stored inside, always greased and maintained.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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