Mistral Rebuild

[captain]

You mean the only stage.

[kworkman]

Is the seat something that should always be replaced? I dont know how to determine if its to worn for use.

[captain]

If it leaks it needs to be replaced, if it doesn't it doesn't.

[kworkman]

The guy I bought it from said it had a slight free flow when he hooked it up but I never tested it. Since I have it apart and they arent expensive, I figured why not replace it.

[kworkman]

Does anyone have a picture or description of how to adjust the lever heights? I bought the adjustment tool but didnt see any literature about it.

[Bryan]

The main page of the website has a link to MANUALS AND CATALOGS
It's a great resource and by far the largest collection of this information available to the public for free....

The US Divers Original Service Manual is there.....Here is the link.

https://backup.filesanywhere.com/fs/v.a ... 65707bb2a4

Here is the information on the specific tool found in the online store where you purchased it

Copy of the LaSpirotechnique Royal Mistral lever height gauge.

Tool works great for all US and French single stage regulators. Lever height recommendations in the U.S. Divers manual are too conservative in my opinion. The LaSpirotechnique gauge puts the levers a little higher for superior performance. Getting the correct height is crucial to the ease of breathing that single stage regulators are known for. For $6.00 why waste time guessing?

[kworkman]

Ah, i was looking in the wrong place. Also, how hard should the pin be to push?

[Herman]

It's going to be fairly stiff, you are pushing it through an oring...you did replaced didn't you. Also, the shaft should be lightly lubricated with your oring lube of choice...the classic DOW 111 or one of the new O2 safe ones like Christolube....I use DC 111.

[SurfLung]

The main page of the website has a link to MANUALS AND CATALOGS
It's a great resource and by far the largest collection of this information available to the public for free....

The US Divers Original Service Manual is there.....Here is the link.

https://backup.filesanywhere.com/fs/v.a ... 65707bb2a4

Here is the information on the specific tool found in the online store where you purchased it

Copy of the LaSpirotechnique Royal Mistral lever height gauge.

Tool works great for all US and French single stage regulators. Lever height recommendations in the U.S. Divers manual are too conservative in my opinion. The LaSpirotechnique gauge puts the levers a little higher for superior performance. Getting the correct height is crucial to the ease of breathing that single stage regulators are known for. For $6.00 why waste time guessing?

Hey Bryan, don't you have a video on this? Seems to me that's how I learned was from one of your videos. Here's Drado's from YouTube:
[video]http://www.youtube.com/watch?v=8muSi-Gf2SA[/video]

Oh yeah, here it is... Linked from the store:
[video]http://www.youtube.com/watch?v=i-sNvS70 ... AAAAAAAHAA[/video]

[kworkman]

Yes, replaced the oring and lubed it per Bryans video. It does move well but it takes some effort so Im guessing thats all good. I also replaced the HP seat as well. Will I encounter issues with that? Is there a break in procedure for seating a new seat? I read that one of you said to pressurize for awhile then cycle and repeat. As far as adjusting the levers, haha, I should have read the manual closer when it said hold down the plate while adjusting. That made the difference. Silly newbie.

[Bryan]

From the Technical section of the website forum.

viewtopic.php?f=12&t=6188

Another section of the site you should become familiar with.

Search Search function works pretty good too..