[guest]

I replaced some hydraulic hoses on my tractor and made SURE that I plumbed everything back correctly. I carefully marked all of the hoses before I took them off. When I restarted the tractor the hydraulic pump made a whine and immediately split open on the side and sprayed oil everywhere.

Was this just a coincidence or did I do something wrong with the lines? Maybe just needed the air bled out? Im afraid to buy a new pump until I can get it figured out.

[Brand]

It sounds like the pump was deadheaded. The most common cause, by far, is using quick disconnect fittings that do not fully couple or get uncoupled somehow. I STRONGLY recommend NOT installing quick disconnect fittings unless you actually remove your loader frequently. Many people (me included) opt for a quick detach loader and think they will remove the loader when they are not using it. It is, however, a relatively difficult job to remove a loader and, in reality, most loaders stay attached once they are installed.

We have a good 'dead head' article in the link below
https://brandmparts.com/pages/yanmar-hy ... ad-heading