Sorry to revive an old topic, but I'm hoping that someone can help me with the same problem:
My 4100 blade adjustment just suddenly stopped responding. The gears are turning, and if I reference the diagram that wingless posted, the rod #58 turns - although only if I use a socket wrench to turn the end of it by grabbing the #64 lug nuts. The blade adjustment goes up and down (what I presume is #201) but the blade does not raise or lower, it's just stuck in the highest position.
Also the wheel doesn't make the gears turn, I imagine that's a whole other issue.
I keep staring at that diagram trying to figure out what part could be responsible for the blade lowering if the rod mechanism is working.
The saw is not even a year old, and unfortunately Bosh's service is horrendous, they're asking me to ship the saw to a small repair shop across town by FedEx. I have half a mind to sell the saw as-is, try to recoup my losses and go with something better built.
