I purchased a used ICI Pro Spray 485 HVLP 4 stage turbine and spray gun.  The gun has problems and was wondering if anyone is aware if gun parts are interchangeable with anything else?  

Does anyone have a copy of a manual that they could share?

ICI shut their doors and sold part of the company to Akzo Nobel.  I don’t see that they are selling anything like this.  I saw Graco is selling some ICI labeled sprayers now.  I have reached out to them and they say they don’t have it.  

I am new to painting with HVLP so Any help is appreciated.