One For Router Experts

For background knowledge of the problem please read:

http://www.woodworkforums.ubeaut.com...ad.php?t=62927

The story continues....

Used the router to cut dovetails in a blanket box using the leigh jig. At no time did the router make the grinding sound. I thought, finally my problem has ended.
Put the router back in the table today to cut a rebate and after turning it on...... the grinding, growling sound returned at start up.
But with a blinding flash, it hit me! I realised what it was.
Even the gurus couldn't help me with this one and I can't believe someone else has not had the same problem with the big Triton router.

Come on who knows what causes the grinding sound?
I can't think of a prize just now but I will give something for the first correct entry.

Carry Pine

Bearing? sounds like it only does the grinding sound when upside down in the table.

Dunno really. Mine can be a pain to lift - feels like the handle hasn't got enough leverage to lift the body of the router, so I apply pressure with my other hand to carry the weight and it operates fine. But no growling...

Is something dragging somewhere? I can't imagine that something is touching the shaft or something like that. Does it only occur in the table?

woodbe.

I'll be a dumb bugger and say that the bit is too big for the hole in the table???
:doh: :doh:
Just a stab

No, no, and no.

Have to admit even the orange caped one could not help me here.

CP

I'll have a guess and say the thrust washer at the end of the shaft has collapsed and the brushes are hitting on the end of the commutator but only when it is mounted upside down.

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I can't believe someone else has not had the same problem with the big Triton router

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I think i have had the problem your describing there CP :-(i missed your other thread)

My big triton (which is mounted in a table) has made some wierd screaching/grinding sounds a couple of times, also when this happen the motor seems to speed up ....I had no idea what it was :?. I just switched the router off then on and all seemed to be well...so I thought nothing more of the matter. But im very interested to see what expaination you have come up with for this mysterious fault.

So come on CP stop dangling the carrot and cough up the answer :D

cheers
BD:2tsup:

Brown dog,

Will PM you so you don't compound the problem. I will tell all on Wednesday am (EST) if not answered.

Carry Pine

The answer lies in the locking bar that locks the collet while you only need one spanner to loosen the collet. It was automatically inserting when in the table and the router is lifted to change the collet. But it was not automatically retracting when the router was lowered. On start up the turning motion forced the locking bar out.
This was confirmed when I noticed 'bite marks' around the holes that the locking bar goes into.

Working on the Leigh jig I was manually inserting and extracting the bar because i wasn't using the full depth of cut.

I hope this helps someone out there. And thank you again for all the help that has been offered.

Graham

I knew it....

I had the same problem on the weekend.

I took the router out to have a good look at it and realised the locking pin wasn’t popping out when I lowered the router. I took the pin out, filed/sanded the black plastic cap, add a few drops of machines oil, put it back in and the problem was fixed.

Have I read this thread earlier I would have won something. Damn.:doh:

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Originally Posted by Wongo

Have I read this thread earlier I would have won something. Damn.:doh:

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First prize was a GMC router. :wink:

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Originally Posted by Wongo

I knew it....



Have I read this thread earlier I would have won something. Damn.:doh:

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First prize was 10 minutes free shopping in Greg's back yard!

CP

Thanks Bob. :D

I wonder if it is a common problem thought. It takes a little bit of dust to jam the pin. Anyone??

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Originally Posted by Carry Pine

First prize was 10 minutes free shopping in Greg's back yard!

CP

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It is better than nothing.:2tsup:

Well that sure is a curious one, and not a problem I've come across before. Add it to the collective knowledge about these tools!

I periodically clean out the router, and take that mechanism apart as part of the clean, so perhaps that was preventing the issue occurring in the first place.

I guess too, it comes down to what type of grinding noise! Next time we'll have to ask for a video, or at least a recording!