Dead Makita 3612 BR - Router Forums
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post #1 of 7 (permalink) Old 03-15-2015, 03:27 PM Thread Starter
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Default Dead Makita 3612 BR

My Makita 3612BR has been sitting for about 2 months. When I tried to use it yesterday I found it wouldn't start. I disassembled the switch and found that it's fine. Does this mean an open winding in the field - or is there some other possible cause?
How many ohms should the field read?

Thanks,

Jeff
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post #2 of 7 (permalink) Old 03-15-2015, 04:02 PM
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Welcome to the forum Jeff . I'm not in a position to make much of a suggestion , but I believe others have had simular issues and I think it ended up being the brushes not seating right on the stator . I'm sure others will pipe up soon.

I donít always insulate , but when I do .
Ok ,I never insulate
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post #3 of 7 (permalink) Old 03-15-2015, 07:54 PM
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Hi Jeff, welcome to the forum.

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post #4 of 7 (permalink) Old 03-15-2015, 08:37 PM Thread Starter
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Welcome to the forum Jeff . I'm not in a position to make much of a suggestion , but I believe others have had simular issues and I think it ended up being the brushes not seating right on the stator . I'm sure others will pipe up soon.
That was it. One brush was completely frozen and not touching the armature. I had to disassemble the router and pull the armature to knock the brush out from the inside. It and the channel were completely caked with wood powder. I cleaned out both channels with a round brush and wiped the carbon brushes clean with acetone. Works like a charm! Thanks for the help.

jw2170:

Thanks for the welcome. This looks like a nice place. I've been lurking for a while but this was my first post.

Jeff
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post #5 of 7 (permalink) Old 03-15-2015, 10:35 PM
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Originally Posted by jeff423 View Post
That was it. One brush was completely frozen and not touching the armature. I had to disassemble the router and pull the armature to knock the brush out from the inside. It and the channel were completely caked with wood powder. I cleaned out both channels with a round brush and wiped the carbon brushes clean with acetone. Works like a charm! Thanks for the help.

jw2170:

Thanks for the welcome. This looks like a nice place. I've been lurking for a while but this was my first post.

Jeff
Holy crap I may have actually helped someone . Hallelujah !

I donít always insulate , but when I do .
Ok ,I never insulate
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post #6 of 7 (permalink) Old 03-16-2015, 08:52 AM
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Welcome to the forum Jeff. Now you know there is no need to lurk.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #7 of 7 (permalink) Old 03-16-2015, 11:09 AM Thread Starter
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Thanks,

I'll be more active in the future.

Jeff
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