ISRI seat info

[MDIGUY]

Hi all,

So I rebuilt my ISRI drivers seat and I thought I would pass along this info.

$5.00 bucks and a used air regulator and I had a custom air controlled seat.

seat001.jpg

the 4mm ( 1/4" air line " black tube " ) is reduced with a fitting that is not available, I had to build this connector, it's 1/4" X 2.44mm.

the tubing ( yellow ) is 2.44mm, I found this at my local Parker fitting store.

here is the receipt so you can see exact part numbers.

seat002.jpg

I also installed a air regulator that supplies air to the airbag under the seat, now I can adjust the air pressure for a softer ride, It works really well. I put the regulator behind the drivers seat to the left.

Hope this helps someone.

[Gil_J]

Good info.

[Joe Camper]

The seats if they do not have a ride height valve like isri would use an pneumatic up and down button where u used the regulator. Result would be the same.

The other added advantage of losing the stupid ride height valve in the seat besides the ability to adjust pressure is when making a hard right turn when u pull yourself up out of the seat to get that wide angle view of the right mirror ....when u go to sit back down the seat still retains its air and u dont end up bottomed out sitting on the floor waiting to come back up.

20200206_090633.jpg

If prevo wanted to make a great improvement to their product they would chuck the ISRI for Bostrom.They r a lot less trouble way less doe and give the same ride.

[MDIGUY]

Got really tired of that ISRI seat, replaced it today with a seats driving seat, what a difference.

Electric and air up n down still work, anyone need parts ?

Rick

[Joe Camper]

As of today the deepest i will go into one of these IRSI is identifying any leaks and plugging the air source in the bay below. I avoid all unnecessary agitation and ive plenty of other work. Will not order parts nothing.

[BGLogistics]

I was the dummy that actually fixed mine. Removed entire seat with base and set it on the dinette table. Yes it was a PIA. Mine had a broken small diameter air line. After buying 4mm line and connectors from different sources, I could not come up with a combination that would stay together for any length of time. Had a truck shop attempt same thing and after a couple hours they gave up. So I ordered new airbag AND switches/manifold from Prevo thinking (as did the Prevo parts guy) those 2 together should be enough small diameter line. I had already tried ordering just line from Prevo and what I got was too big.

So.....re-install seat with new parts. All's good until a few inches from max height and airlines on the new components pull apart. Almost, but NOT QUITE long enough.

Thanks to Jason at Willingham Inc who sent me some "proprietary" ISRI connectors - that are not avail for sale as parts??? I was able to splice in a section of old line to make it work.

And to add, I had called ISRI in U.S. and was told they were in the process of moving and the "bus and coach" guy that had been there for a few decades they had let go.

These seats aren't very user friendly parts wise.