Hydraulic fitting oring replacement size

[BC Dave]

During the transmission repair, I noticed a fair amount of hydraulic fluid leakage coming from the joystick area, thinking that the O-ring hose fitting connections need to be replaced to fix leaks. Anyone replaced orings?; what size was used on YM 180D's? Details below.

Front End loader and Hyd Control
FEL – YFL 675 – 212-200-00675 - made in Canada

Joy Stick – Kontak – Made in UK
What O-oring size? and fitting size; and type for that matter. 1st pic from top; bottom pic from side view

 

[ponytug]

@BC Dave Do you have any higher resolution photos? There should be a detailed part number on the coupler, between the knurled rings. It may take some brake cleaner and a rag to see the numbers.

I confess that I tend to just replace the whole coupler assembly, as seals can be hard to find sometimes.

All the best, Peter

 

[ptsg]

It's an o-ring and a backing ring, which is often in good shape.

Pull the o-ring out and measure or take it to a parts store and get a bunch of them.

Get the NBR ones as those can handle oil. You can get the more expensive Viton ones but those are meant for high temps which is not the case here, so not at all necessary.