Which way does the bolt unwind on a Boschmann chop saw? I can't seem to
budge it in either direction. The thing cuts anticlockwise and the
arrow points thataway so I presume the thread is a standard direction
and I need to unwind it in a clockwise motion.

Also the spindle stop that you push in to arrest the blade while
unwinding it, can't be held in place so I have jury rigged a spanner
across it and wrapped a tie around it. That can't be the design can it?
What moron came up with that brilliant idea?