VS on DW618 Router Broke

[jussi]

Using my DW618 today on high but not max speed when I heard a popping sound. All of a sudden router goes to max speed and variable speed knob doesn't work. Took it apart and found magnetic ring broken. See pic and link.

So do all I have to do is replace the ring?

How do I safely remove the guide bearing above it to replace the ring? I don't want to force it and break something else.


Page B. Part 27
http://www.ereplacementparts.com/dew...ejru6r66t07ir1

[LCHIEN]

are you saying the magnetic ring (below the bearing) broke when you disassembled it or was it broken before you disassembled it?

If it broke when you disassembled it there are now two things wrong with your router.

I am not sure what function the magnetic disk has, possibly its part of the speed control but i somehow doubt it.
If it was running and something popped and the speed ran away to max them it sounds like something electronic gave up the ghost.

Bearings are generally press fit onto the shaft they support.

[jussi]

Just re-read my post and see it was misleading so I edited it. I meant to say it was broken before I disassembled.

[LCHIEN]

Yeah, Ok then the ring could be part of a magnetic speed sensor which would make sense if the ring broke the cotroller would make the motor would run max speed since it thinks its turning too slow.

This thread seems to confirm it - same router, several had the problem.

http://www.forums.woodnet.net/ubbthr...llapsed&sb=5&o=

[master53yoda]

use a bearing puller to remove the bearing, discard the bearing after removal because removing it will probably ruin that bearing. when reinstalling the bearing heat it up by placing it on an electric frying pan no hotter then 250. you could also put a small piece of dry ice on the shaft, let both set for about ten minutes. the bearing will fall into place with little if any force. once everything is back to the same temperature it will be tight and ready to put back together. Router bearings turn very fast and ANY issue with the bearing will cause failure,

good luck

[jussi]

Hmm I don't have a bearing puller and if I have to buy one I wonder if I shouldn't just bring it in to a service center. How much does one cost? Would an automotive store have one?

[herb fellows]

If you're going to discard the bearing anyway, I'm guessing 'by any means necessary' to remove it.
I would google 'substitute for' or 'home made' bearing puller and rig something up, shouldn't be too difficult, maybe a couple of bolts......
Of course, ymmv, but one guy on the link to Woodnet supplied by Loring was hit with something like $129 to fix it. Several people complaining about it in relatively new tools, but it seems as if it might have been a bad batch as opposed to all 618 routers.You might try giving Dewalt a call, there's just a SMALL possibility that they have recognized this and might repair for you. I would reference the Woodnet complaints and let them know you are a commercial user, couldn't hurt.

[capncarl]

A lot of the local auto parts places have tool loaner services. You pay a deposit greater than the value of the tool and get it back when you return the tool. A lot cheaper than purchasing or renting a tool for one use.

capncarl

[gjat]

Once you start pulling bearings, the hassle of finding replacements, the risk of not removing/installing correctly and ruining the bearing...

For the money and hassle, wouldn't it be better, easier, and cheaper just to buy a HF speed control and be done with it?

[LCHIEN]

Once you start pulling bearings, the hassle of finding replacements, the risk of not removing/installing correctly and ruining the bearing...

For the money and hassle, wouldn't it be better, easier, and cheaper just to buy a HF speed control and be done with it?

since it has a speed control in it, a second speed control will not work.
Those aftermarket speed controllers only work when connected directly to a universal motor.