ISRI Parts

[phorner]

I have found one of my aux air leaks and it looks like I need to replace the switch console for the air lumbar support.

Any ideas where I might find a replacement?

[JIM CHALOUPKA]

Paul, Rogers solution to the lumbar air leak on my bus was to block it out of the system.

I find nothing negative about this.

Another way to address the leak and retain control of the lumbar support, would be to install a mini valve in the line just before the leaking switch and apply air to make an adjustment only.


JIM

[Ray Davis]

Paul,

How did you go about trouble-shooting your leak in your seat. During my OKC trip, I developed a leak in mine too (I think). I haven't yet tried to track it down, but the hiss while driving is definitely annoying.

How did you go about tracking it down the leak?

Thanks,
Ray

ps: I hope your front window is still leak free!

[jack14r]

I think I remember seeing the ISRI seat in the Prevost parts book.

[phorner]

Ray,

I borrowed an electronic stethoscope from Truk and the first place I suspected a leak paid off. You could clearly hear the difference from one switch to the other.

I confirmed with a spray of the Big Blue leak detection solution, and the bubbles were quite significant. There is a leak at the connection of the inlet air line and another internal to the switch.

These very small air lines and fittings are subjected to 120+ psi, so a small leak shows up fast.

Oh, and the windshield is still good to go

[Ray Davis]

I gotta get a stethoscope! Maybe I'll try locating one of those ultra-sonic leak detectors.

Glad to hear the window is doing good! Phew!

[Alek&Lucia]

Tom,

Which model of the electronic stethoscope do you have ?

Alek

[phorner]

Paul, Rogers solution to the lumbar air leak on my bus was to block it out of the system.

I find nothing negative about this.

Another way to address the leak and retain control of the lumbar support, would be to install a mini valve in the line just before the leaking switch and apply air to make an adjustment only.


JIM

Jim,

If I decide to plug this line off, what would you recommend? It's a very small inlet air line, maybe 1/16" ID or so.

And, it needs to seal against substantial pressure....

[Danss]

Parliament coach replaced my switch because of same leak.

[truk4u]

Alek - I'll have to refer you to Paul, I don't remember the name. It wasn't expensive, I think around 75 bucks and they work great. I had to buy Brian E one before he would deliver my bus!

Paul - I replaced the ISRI switch assembly on the Marathon I had and then it started leaking. Very expensive stuff and they suck! Got it from Prevost.