Ha! ... about the only problem I have with my 7518 ... and one I have done
nothing about either.

The problem is the heat buildup during use causes the metal to expand,
tightening the nut beyond human ability to un-tighten without pliers ...
something I keep handy for just that.

There is a solution (which I haven't bothered with because I tend to forget
the frustration between uses) that involves using a bicycle seat clamp to
replace the current locking assembly. You can find more about it at:

http://groups.google.com/groups?q=bi...tic.loc&rnum=2

Good luck ... and let us know if you do the fix, and what parts you needed.
A regular here has a picture on their website, but can't remember who it is
.... hopefully they, or someone with a better memory, will chime in.

--
www.e-woodshop.net
Last update: 7/28/03


"Roy Smith" wrote in message
I've got a PC-7518 router mounted under a table. When I change the
depth, I reach under, loosen the depth adjust lock, turn the motor to
get the right depth, then tighten the lock again.

I'm always careful to only tighten the lock with two fingers, and I
always find that when I go to loosen it again, it's so tight, I need
to put a pair of pliers on it to get it free. Do these things just
tighten up by themselves due to vibration or something?