Both the drive shaft and pump where brand new, only 4 months old before the key sheared.
Yes, the key seat depth in the drive shaft is too deep, thus allowing the key to work itself out.
It would cost more to go to a machine shop than to get a new pump...I think I'll try some steel (not stainless) rectangular key stock and see if I can get it to work.
The key that came out was a rounded edge or feathered square key...it was oversized, and these feathered keys are not suppose to come out or need to be held in place with a set screw. Thanks for the replies and please post more advice if you have it.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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