Lola DIN plug, how to exchange o-ring inside the housing?

[Agro]

ZV Blind-End Plug I use those plugs and like them very, very much. One plug is leaking. It is not the DIN o-ring but the o-ring inside the housing.

Has anybudy an idea how to open the housing?

I once "opened" a Lola plug by destroying it in the lathe. I found no way to open it without destroying. But I also did not realise how it was assembled. It was assembled so there should be a way to diassemble. Or am I wrong?

Thanks for your help.

 

[Agro]

Nobody has an idea?

 

[Alastor]

The inside of the knob, is just a protective cap that can be removed to uncover an allen bolt?
Just a suggestion, I've never used any of those plugs.

 

[Agro]

The black part (cap, knob) can be turnded about 90 degrees against metal part (threaded). When turning the knob conterclockwise pressure is released. So you turn the whole plug in, it is sealed. You turn a little bit counterclockwise, pressure is released. You keep on turnging ccw and plug comes out. So far so very good.

No, you can not remove the cap. At least not without tools. Strange.

 

[Agro]

I was told there is a tool for that. No idea how it looks like. I ordered one.

 

[Dsix36]

The black part (cap, knob) can be turnded about 90 degrees against metal part (threaded). When turning the knob conterclockwise pressure is released. So you turn the whole plug in, it is sealed. You turn a little bit counterclockwise, pressure is released. You keep on turnging ccw and plug comes out. So far so very good.

No, you can not remove the cap. At least not without tools. Strange.

Perhaps as already posted, the center of the knob can be pryed out to reveal the connection. Probably some type of machine screw, either phillips head or allen head would be my guess.

 

[Agro]

The metal center is one single piece. Black plastic part can be turned about 90 degrees. The only thing I can imagine is, the plastic was somehow pressed on metal. But why doesn't it come off and can still be turned with very low resistance? Anyway as soon as I have the tool I will know more. At least I hope so

 

[Endler's]

Have you sent an email to the manufacturer?

Also curious how many years used, before internal o-ring failed?

 

[Alastor]

I think that internally it has a seat, like those found in 1st stage regulator. because of this, is it possible that some sort of deposit (e.g. salt) is causing the leakage ? Can it be "washed"?

 

[Agro]

No, inside there is no seat. I only found 2 o-rings when destroying it.

I have 20 of them, 2 failed after 2 years.

I tried washing out but don't know if any watter passed through it.

Tool is on it's way, I will post pics.