Hitachi M12v2 Bogging Down - Router Forums
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post #1 of 16 (permalink) Old 11-18-2015, 10:43 PM Thread Starter
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Default Hitachi M12v2 Bogging Down

I have a M12v2 Router that runs fine til under load. It bogs down. The variable speed wheel does not work either.

Any ideas?
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post #2 of 16 (permalink) Old 11-18-2015, 10:51 PM
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capacitors in the speed control...
control wheel not connected to the speed pot...
needs new brushes...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

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Forget the primal scream, just ROAR!!!
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post #3 of 16 (permalink) Old 11-18-2015, 10:59 PM
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Welcome to the forum Darrell. All of Stick's suggestions are good possibilities.
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post #4 of 16 (permalink) Old 11-19-2015, 07:25 AM
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I have a spare V12 (it's a spare because I burned the speed controller out). I bypassed the speed controller and use an external one from Harbor Freight. I have noticed that although it works fine that I can bog it down when I press hard. From your description I would say that you need a new controller. A internal controller is almost as much as a new router.
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post #5 of 16 (permalink) Old 11-19-2015, 10:06 AM Thread Starter
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Thanks everyone!

That's what I was thinking, but it's great to get advice from ones who have walked a little farther down this road!

I am going to bypass the controller, check the brushes and see what happens.

I am setting up shop and wanted a good workhorse in my router table I just built. Bought this M12v2 off Ebay, I wasn't too surprised to find this problem. But the seller never mentioned this issue!
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post #6 of 16 (permalink) Old 11-19-2015, 11:00 AM Thread Starter
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So, I checked the brushes, they look good.

I looked at the controller, and quickly figured out I am not versed in messing with it!

How in the world do you bypass this thing? I can see the black and white wires coming out, probably need to be connected. But it also has a red wire by itself, coming from the power switch. And a bundle with red, black and white coming out and going to the variable speed dial on the handle.

Would I cut and cap the single red wire. And unplug the 3 wires going to the speed dial. Then connect the black and white larger gage wires together?

I will get a variable external controller later, if I can achieve this step!

Thanks for any help guys!
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post #7 of 16 (permalink) Old 11-19-2015, 11:27 AM Thread Starter
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I took a picture to detail the innards.

1 & 2 are the main power, and I am guessing that I would just need to connect them together.

3 is coming from the power switch, was thinking it just needs cut and capped?

4 just needs unplugged.

Are these what you'd call proper procedures?

Thank you for your prompt answers!
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post #8 of 16 (permalink) Old 11-19-2015, 11:53 AM
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Quote:
Originally Posted by darrells81 View Post
Thanks everyone!

That's what I was thinking, but it's great to get advice from ones who have walked a little farther down this road!

I am going to bypass the controller, check the brushes and see what happens.

I am setting up shop and wanted a good workhorse in my router table I just built. Bought this M12v2 off Ebay, I wasn't too surprised to find this problem. But the seller never mentioned this issue!
You should consider contacting the seller. It may be used, but sellers may not pass off broken items as functional. Ebay will guarantee your purchase.
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post #9 of 16 (permalink) Old 11-19-2015, 12:32 PM Thread Starter
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I got it cheap. So like I said, I wasn't surprised. I am not happy that they didn't tell me the truth of the matter. They had to have known! I can't go through the down time now. I wanna fix the issue and move on.

I need to get set up quick, orders are piling up....I got work to do! lol

Thanks for the advice Phillip.

Last edited by darrells81; 11-19-2015 at 12:44 PM.
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post #10 of 16 (permalink) Old 11-19-2015, 06:08 PM
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Darell, I can't figure out what is what from the picture but you basically want it like in the diagram. I'm not sure if the included switch will handle the motor current. You could bypass it too but that might be dangerous unless maybe the router is in a table with a switch.
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