lastcowboy32
Well-known Member
I did this trick on our Hesston 1070 haybine.
When I found this other one for scrap price, and realized that it was being scrapped, because of the same failure that ours had... I bought it.
The previous owner already tried a fix that failed really badly and tore up the end of the center tube... but, he did weld a "puck" onto the drive shaft. I kept that puck.... added another puck... to keep things better centered and distribute the load...
A friend with a metal lathe turned the pucks to the correct diameter to fit inside the repair piece.... and turned the repair tube to the correct OD to fit inside the original.
The tube splice will be with a "fishmouth" weld... to put brittle lines at diagonals to shearing forces. The drive shaft pucks will be connected to the tube with four lug bolts... two for each puck... at 180 degrees apart on each puck... rotated 90 degrees relative to the other puck...
A 29/64" carbide drill bit was worth its weight in gold for the drilling to prepare for 1/2"-20 UNF tapping...
I think it's going to work...
When I found this other one for scrap price, and realized that it was being scrapped, because of the same failure that ours had... I bought it.
The previous owner already tried a fix that failed really badly and tore up the end of the center tube... but, he did weld a "puck" onto the drive shaft. I kept that puck.... added another puck... to keep things better centered and distribute the load...
A friend with a metal lathe turned the pucks to the correct diameter to fit inside the repair piece.... and turned the repair tube to the correct OD to fit inside the original.
The tube splice will be with a "fishmouth" weld... to put brittle lines at diagonals to shearing forces. The drive shaft pucks will be connected to the tube with four lug bolts... two for each puck... at 180 degrees apart on each puck... rotated 90 degrees relative to the other puck...
A 29/64" carbide drill bit was worth its weight in gold for the drilling to prepare for 1/2"-20 UNF tapping...
I think it's going to work...
