Sievert soldering iron

Anyone using the sievert soldering gun?
having problems with ours,looking for help on repairs,part sources,etc.

I use the Sievert propane iron (not really a soldering gun style) and love it. Whats the problem youre having?

the flame is not directed toward the iron,it just sort of leaks out around the head,with no control of flame.i think there must be a dirty orifice,or something,that is restricting the propane flow.
have emailed sievert for a parts diagram,no reply as yet