Massey 1100 hydraulic system

[MasseyT]

Hello, I have an MF 1100 and the hydraulic system is dead.!
I was blowing snow a few years ago and the tractor shook then stopped dead in its tracks, it killed the engine. I started the tractor back up but had no hydraulics, nothing, no brakes / seat / steering three point / pto. I did notice before loosing the hydraulics, when working ground, the engine RPM would drag then come back routinely.
anyone’s input would be greatly appreciated.

 

[kencombs]

Sure sounds like a hydraulic pump got deadheaded and sheared something.

 

[Dieseltech]

If hi hours, it MIGHT have one or both PTO drive shaft couplers failed. When they fail there's NO drive to the PTO and charging pump drive that supplies the front radial pump. No charge pump means ALL hydraulic functions will stop. The front coupler is at the flywheel, the rear one is at the rear trans-diff case split joint. When EITHER fails the charge pump won't run.

 

[MasseyT]

Sure sounds like a hydraulic pump got deadheaded and sheared something.

Maybe something with a pressure relief that’s stuck.

If hi hours, it MIGHT have one or both PTO drive shaft couplers failed. When they fail there's NO drive to the PTO and charging pump drive that supplies the front radial pump. No charge pump means ALL hydraulic functions will stop. The front coupler is at the flywheel, the rear one is at the rear trans-diff case split joint. When EITHER fails the charge pump won't run.

Thanks for the input.! That’s what I’m thinking is why I have 0 hydraulics, but I don’t understand what killed the engine then lost all hydraulics.

 

[MasseyT]

Sure sounds like a hydraulic pump got deadheaded and sheared something.

What would cause that, maybe pressure relief valve.?