Backing Plate Stuck on Makita...

[Brandon1]

I have a 6" ( I think) AG backing plate. I have had it on my makita for about a month or so now, and when I went to remove it today, I could not get the stinking thing off! I put PB blast in the threads, twisted the hell out of the damn thing, and I cant get the bugger off.

Any tips on removing this backing plate?

[michael k]

Weird,I just depress the shaft lock and twist.(righty tighty lefty loosey).Backing plate facing you turn counterclock wise.
Does the back plate have a hexagon on the back for a wrench?