Posted by Determined on April 29, 2021 at 16:20:53 from (216.130.212.201):
Picked up a Case IH 595 manure spreader mounted on a tandem Mack truck.
It has been converted to full hydraulic drive utilizing the factory gearboxes.
First time I tried it I loaded it with 5 year old manure, basically topsoil and the apron chain would not move the load.
Pulled the gearbox, replaced all the bearings, re-shimmed the worm gear and resealed it, all was good but it still would not pull the load to the back.
Put a 12 inch pipe wrench on the input shaft and within 4 turns of the input shaft the 1 1/2 apron shaft sheared in two right at the gearbox.
Off to the machine shop, had a brand new shaft made up, checked all the bearings and slides and all were good.
Put it all back together and managed 25-30 loads before the shaft twisted off in two just outside the gearbox.
Shaft is obsolete from Case so machine shop was the only choice.
Anybody know if this should be made from mild steel or would one be better off with a hardened shaft?
Kind of pricy and inconvenient if I can only get 25 loads out of a $500 shaft.
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