How can I tighten loose blade in my circular saw?

The blade is loose in my Black & Decker KS850. How can I fix this?
Michel Griffin, April 2022


done
unplug saw, place a screw driver in teeth of blade and turn blade till it locks against screw driver. use wrench and tighten blade.

Randy, October 2022
https://www.manualslib.com/manual/17154/Black-And-Decker-Circular-Saws.html

Rtjfj, April 2022
link Click here to see other fixes for Black & Decker.