Stuck loader fitting - how to loosen

[workinonit]

Plug the hole with something like a piece of cloth and use Scotchbrite first. If that doesn't clean it use some emery cloth.

 

[nyone]

I have just used a wire brush to clean the rusted male JIC fitting. Dont go to aggressive as the chamfered edge is the seal.

 

[newbury]

Well, in that case, how would you remove the rust from the fitting?

Like I wrote

I was going to suggest Kroil oil, then maybe heat.

 

[Gator6x4]

If you have a next time hold the lower nut and try to loosen the top nut in your highlighted post. If you have a Dremel tool insert a home made from a wooden stick, wooden peg in the opening at the top and clean away with the Dremel round wire brush wheel. Or use a wire brush wheel made for a electric drill.

A word of caution to those thinking heat. Be very careful about using open flame heat around hydraulic oil.

"Hydraulic and lubricating fluids are relatively non-flammable in bulk, but they can be flammable or explosive when atomized."