HELP Porter Cable router

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Forum topic by ClayandNancy posted 08-17-2011 02:46 PM 1201 views 0 times favorited 4 replies Add to Favorites Watch
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521 posts in 3284 days

08-17-2011 02:46 PM

I bought a PC 7518 with the knowledge that it might need bearings and/or brushes. How do you get the collet retainer off(part on end of shaft) to replace that bearing?
Only half of the brushes are contacting the commutator as if the armature wasn’t pressed on all the way, about a1/4”. Can i press it on further? I posted this on a router forum but got no response, should have started here on LJ’s.

4 replies so far

View TimL's profile


36 posts in 3044 days

#1 posted 08-17-2011 03:04 PM

This link has an exploded schematic. Bearing is held on with set screw. I took my PC router apart and it needed a little persuasion. Good luck.

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521 posts in 3284 days

#2 posted 08-17-2011 03:42 PM

TimL I was able to get the set screw loose, your right quite tight. I’m looking at the other end, where the collet is. I think it might screw on but not to sure and which direction clockwise or counter-clock.

View dryhter's profile


74 posts in 3873 days

#3 posted 08-19-2011 01:17 AM

Hey Clay, This may be a little late, and you have already taken care of the problem, Like you said ” I think it might screw on but not to sure and which direction clockwise or counter-clock. ” ,that is what I would think also. I have never changed a collet on a router, but I have changed a chuck on a drill, on a drill chuck there is usually a screw at the bottom of the chuck, the screw is reverse threads, because the drill goes in both directions and the router does not, so I don’t think you will find a screw. On a drill, after removing the screw you would chuck up a good size Allen wrench in the chuck and give it a sharp Wacke with a hammer in the counter clockwise direction, that will loosen the chuck. I believe tools like these always turn into the part so it won’t come loose during operation. So. . . . .. If i am thinking about it right the collet should come off in a counter clockwise direction. I would chuck up a sacrificially bit in the router put your shaft wrench on the shaft and a pipe wrench on the bit and try to unscrew it. The brushes are soft graphite and the springs are kinda week any little burr will stop them in the holder, don’t be afraid to scrub the brushes against some 100 grit paper and make them a little smaller, forty fiving the corners helps too.

-- Chips and Shavings/ see you at

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521 posts in 3284 days

#4 posted 08-19-2011 06:11 PM

Hey dryhter Finally just went for it with my electric impact and it unscrewed counter-clockwise. Pulled the armature out of the housing to find that all the blades of the fan on the shaft are gone. That is what was making the noise, one of the blades was just bouncing around in the housing. I found the part on the PC website. Thanks for all the responses

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