Fixing a devilbiss aerograph sprite major

has anybody got one of these airbrushes and can give me some pointers on fixing one,
i was given one a few years back and keep intending to fix it, it leaks air out the trigger so i presume a O-ring or something in the air valve mecanism has gone - but as its a little differnt from my more modern airbrushes im a little reluctant to just start messing with it and pulling it apart.. has anyone got one of these and knows how to strip it down and check for faults? also i cant see anywhere to buy parts so what have you used to fix faults - as i presume its about trial and errpor with bits from other airbrushes?
its not urgent to get it working , and if it never works it will just sit nicely int eh box on the side at my studio - but it would be cool to see how it sprays

Calling @DaveG. Come in Dave, can you hear me

I will have to look, but someone posted copies of repair manual for Aerograph brushes here a while back. I am not real familiar with the Sprite or Sprite Major, but think they are basically the same. The Aerograph brushes used a diaphragm in the air valve that are notorious for splitting. I have repaired older ones with crazy glue. The newer style, (which would be used in the Sprite brushes) are available inthe UK from Anything/Everything airbrush - https://www.everythingairbrush.com/...accessories/airbrush-spares/aerograph-spares/


I'll look to see if I can find the manual post on here...

ah! thanks for posting the link, those pictures help loads it looks like the air valve can be stripped back further than i've managed already.. i have got the pin and ball bearing and spring out but looks like the section above that also can be stripped back. so i might look into that more.