My New Holland l553 just lost all hydraulics

[Glenn1234]

I was backing up a small hill when I lost all of my hydraulics. I heard and felt something briefly and then nothing.

I was looking at a parts diagram and it shows 2 couplers. Anyone here have this happen to them?

Any chance it as simple as that or did something worse take place? Thoughts?

Thank you in advance.

 

[River Fluid Power]

I was backing up a small hill when I lost all of my hydraulics. I heard and felt something briefly and then nothing.

I was looking at a parts diagram and it shows 2 couplers. Anyone here have this happen to them?

Any chance it as simple as that or did something worse take place? Thoughts?

Thank you in advance.

My first guess is the the input shaft to the hydrostatic pump stripped.

 

[Glenn1234]

I hope to take the unit apart this weekend so I should have better idea then.
Thank you for the reply.