How to disassemble bolt?

[Cosine26]

I am surprised that no one has come forward to answer your question so I shall venture an answer. I have a bolt on which the handle has been altered to clear a scope and it is equipped with a Buhler safety.
As you have surmised , with the Buhler safety there is not center or disassembly notch- the safety is either on or off and in the on position the bolt cannot be opened.
What you have to do is:
1. Ensure that the safety is off.
2. With the bolt in your left hand and the cocking knob in your right hand, disengaged the bolt sleeve lock , seize the cocking knob and begin unscrewing the firing pin assembly counter clockwise. When the cocking cam on the firing pin rod drops into the cocking slot on the bolt, you have to manually pull back on the cocking knob until it clears this notch, then continue to unscrew the assembly.
3. Continue to unscrew the firing pin assembly until it comes free of the bolt. On the last couple of turns the firing pin will clear the cocking slot on the bolt without pulling back on the cocking knob.
4. Re assembly is just the reverse.
Hope this helps.