Retired & lovin it!
Join Date: Feb 2009
Location: Howells, New York
Re: porter cable 146
If you Google it there are a number of instructions/manuals for the saw. Basically, unplug tool, hold down the arbor lock and unscrew blade retention nut. If no button, the blade can be held in place using a piece of wood and unscrewing the nut. That last part is not a recommended method from the Consumer Product Safety Commission (CPSC). Proceed at your own risk.
"It isn't bragging if you've done it."