Dead Elu :( - Router Forums
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post #1 of 22 (permalink) Old 11-01-2011, 11:18 PM Thread Starter
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Default Dead Elu :(

Hello all,

A few months ago I was building some new speakers out of 18mm 13lam Birch Ply, anyways, having just turnt my Elu MOF96e off to rearrange the workpiece I turnt flicked the switch to turn it back on and nothing happend, not a sound.

I checked the fuse, I checked the cable. Since then I tried it again in case it had overheated. I got the multimeter out the other day and there's power going all the way through to the brushes. But that's where my technical expertise in such things ends.

Just now I have stripped and rebuilt it and could spot nothing obvious.




Any help or advice? Anyone in London who's able to repair? None of the tool repair shops will touch it as parts are hard to come across apparently.
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post #2 of 22 (permalink) Old 11-04-2011, 02:39 PM
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Hi Sam

the parts shouldn't be that difficult. The early DeWalts were identical as they took over ELU. Try Search | Miles Tool & Machinery Centre for parts.

Cheers

Peter
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post #3 of 22 (permalink) Old 11-04-2011, 04:10 PM Thread Starter
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Yebbut I dunno what part. I need to find a way to diagnose.
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post #4 of 22 (permalink) Old 11-07-2011, 07:40 PM
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Since you have a multimeter.. my first suggestion(while unplugged!) is make sure you have continuity thru the on/off switch in the on position. It may have dust in it!

Last edited by Dmeadows; 11-07-2011 at 07:43 PM.
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post #5 of 22 (permalink) Old 11-07-2011, 07:47 PM Thread Starter
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I have power going all the way to the brushes.

The impedance between the brushes measuring around 10-11r but only on 2 diametrically opposite points. I assume there should be more contacts on the motor?
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post #6 of 22 (permalink) Old 11-07-2011, 07:53 PM
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How are you determining you have power to the brushes? If that were true and the impedance is as you say, it should be running!
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post #7 of 22 (permalink) Old 11-07-2011, 08:01 PM Thread Starter
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With the multimeter. Probes on each brush is showing power. Is that not right?
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post #8 of 22 (permalink) Old 11-07-2011, 08:02 PM
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All pairs of opposite contacts should have continuity, and every pair should be the same! Could also be a thermal fuse imbedded in field winding. Have not looked at th shematic diagram, but I am still leaning towards the switch. The pix you posted looks like the armature and apparantly the brushes are fine!
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post #9 of 22 (permalink) Old 11-07-2011, 08:07 PM
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Quote:
Originally Posted by Dmeadows View Post
How are you determining you have power to the brushes? If that were true and the impedance is as you say, it should be running!
If the router is plugged in and your are checking Voltage, that is correct. If the router is unplugged and you are measuring ohms of resistance, that will only confirm the brushes and arm are probably good.

With the router unplugged and the multimeter set for lowest ohms scale, put each lead on on side of the power switch. the meter should read VERY near zero!

Last edited by Dmeadows; 11-07-2011 at 08:08 PM. Reason: Not the best typist!
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post #10 of 22 (permalink) Old 11-07-2011, 08:12 PM Thread Starter
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Quote:
Originally Posted by Dmeadows View Post
All pairs of opposite contacts should have continuity, and every pair should be the same! Could also be a thermal fuse imbedded in field winding. Have not looked at th shematic diagram, but I am still leaning towards the switch. The pix you posted looks like the armature and apparantly the brushes are fine!
Is each of the copper segments a contact?




Quote:
Originally Posted by Dmeadows View Post
If the router is plugged in and your are checking Voltage, that is correct. If the router is unplugged and you are measuring ohms of resistance, that will only confirm the brushes and arm are probably good.

With the router unplugged and the multimeter set for lowest ohms scale, put each lead on on side of the power switch. the meter should read VERY near zero!
It does and yes. Basically everything seems normal.
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