Hi
I am new to this forum and was just wondering if anyone can help.
I have a Scania Series 3 93M 220.
There are a few switches that I don’t actually know what they do and I was wondering if anyone could help?
Thanks in Advance 
Sure the max/set is a speed limiter or cruise control…unsure of other one though
Max/set is indeed a speed limiter, build up to a certain speed (30 if in town etc) push it to ‘set’ and that’s ya set limit…max position just lets it go to limiter speed. I think it needs resetting every time the ignition is killed. As for the other switch, no idea!
Any wires hanging down from the dash 
Steve-o:
Its the 4th fuse from the right, the ■■■ lighter…so I got told many years ago by a friend of a friend
Edit…unless you’re talking about where a CB has been removed before the OP took charge of the truck 
Adamwyllie:
Hi
I am new to this forum and was just wondering if anyone can help.
I have a Scania Series 3 93M 220.
There are a few switches that I don’t actually know what they do and I was wondering if anyone could help?Thanks in Advance
Picture below, the two gear wheels on yellow background is power take off. P.t.o. for tipper, hiab, ro.ro box etc.
Actrosman:
Steve-o:
Its the 4th fuse from the right, the ■■■ lighter…so I got told many years ago by a friend of a friend
Edit…unless you’re talking about where a CB has been removed before the OP took charge of the truck
Couldn’t possibly say, but I plugged a cheap fridge into the lighter socket once which blew the fuse and didn’t seem to do many miles between Calais and Frankfürt.
I also noticed that if a trailer popped the trailer abs fuse, a 3 series would go alot quicker…