SR450 Parts Diagram? (Backpack Sprayer-Blower)

[sitstihl]

Hi! I have an SR450 tank sprayer/blower and the liquid valve is leaking. Even when shut off, it lets a trickle of liquid out. I'm thinking of taking it apart to see if it's just clogged or something, but don't know if they designed a simple valve, or there is some fancy stuff in there that I'll mess up if I go in blind. Where can I get a parts diagram and/or repair manual for this? I went to 2 "approved Stihl dealers" in my town (Southern States and James River) and they don't have much experience with this model. I'm not even sure if Southern States does their own repairs...?

Thanks!

 

[StarTech]

SR 450 IPL - ONLINE

 

[sitstihl]

Thanks!

I see that's a UK company, so the parts diagram is great, but if I need any parts, I'll just have to find a U.S. company.

Just as I 'feared' there are a lot of little bits and pieces in there that will be easy for me to lose! Looks like I'll have to take it apart and check out some of the O-rings, valve and even the "piston" which is in the handle/grip.

Thanks again & take care!