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My Hitachi M12V Router quit.

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Forum topic by MrRon posted 11-12-2014 11:17 PM 1246 views 0 times favorited 9 replies Add to Favorites Watch
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MrRon

3926 posts in 2705 days


11-12-2014 11:17 PM

Topic tags/keywords: question

My M12V just quit on me in the middle of a job. The router starts, speeds can be changed, but soon after starting to route, it quits. I think the problem is the variable speed control. A new control costs $126, so I’m not sure if I should go ahead and repair it or buy a new one. I’m thinking about disconnecting the speed control and use it as a single speed, since I don’t swing big bits. Has anyone ever done this?


9 replies so far

View Rick  Dennington's profile

Rick Dennington

5173 posts in 2656 days


#1 posted 11-12-2014 11:31 PM

Mr. Ron, I have 2 M12V’s, and so far no problems with either….From your description, it sounds like the switch is trying to go out….The reason I say this is because I was on WoodNet.com last night, and someone was on there describing the same thing you are with their M 12V…..Basixally the same synptons…He came back later and said, yes, it was the switch…Replaced it with another switch he had, but didn’t have the variable speed…it was constant at about 20,000 rpm….This may or may not be the problem w/ yours…..

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View pintodeluxe's profile

pintodeluxe

4853 posts in 2275 days


#2 posted 11-12-2014 11:53 PM

I had that router and didn’t care for it. The thing is so heavy the handles creak when you pick it up, and the 1/4” collet sleeve was always slipping bits. I replaced it with Dewalt and other routers and never looked back.

Good luck.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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MrRon

3926 posts in 2705 days


#3 posted 11-13-2014 12:24 AM


Mr. Ron, I have 2 M12V s, and so far no problems with either….From your description, it sounds like the switch is trying to go out….The reason I say this is because I was on WoodNet.com last night, and someone was on there describing the same thing you are with their M 12V…..Basixally the same synptons…He came back later and said, yes, it was the switch…Replaced it with another switch he had, but didn t have the variable speed…it was constant at about 20,000 rpm….This may or may not be the problem w/ yours…..

- Rick Dennington


I have the router in a router table and the switch is always on. I control the router by a different switch located outside the table.

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Rick Dennington

5173 posts in 2656 days


#4 posted 11-13-2014 12:29 AM

Yep…..I have the same setup….It was just an idea…Didn’t know how your’s was….It’s also possible that it could be a bad start capacitor….I’m just throwing ideas out there….My dust collector did the same thing once, and found out it was the capacitor…..

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View runswithscissors's profile

runswithscissors

2177 posts in 1486 days


#5 posted 11-13-2014 08:15 AM

Do universal motors have start capacitors?

Anyhow, if you aren’t swinging big bits, there’s nothing wrong with a single speed router. For a long time, that’s all any of us had. And if you remove the bad speed control (and the soft start with it?), a separate 20 amp speed control might be okay. I wouldn’t use a 15 amp one, though.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View Bill7255's profile

Bill7255

354 posts in 1746 days


#6 posted 11-13-2014 01:03 PM

I don’t think repair at $126 is a good option when you can by new at from Amazon for $119. They say it comes with a 1/4 collet, but mine also had the 1/2 collet. It is a model M12VC?

-- Bill R

View English's profile

English

517 posts in 939 days


#7 posted 01-02-2016 09:32 PM

Mr. Ron, did you ever solve this problem. I have a M12V and the speed control work fine at no load but when you load it up, it speeds up to max speed.

-- John, Suffolk Virgina

View Joe Andrews's profile

Joe Andrews

65 posts in 1461 days


#8 posted 01-02-2016 10:32 PM

The one in my CNC router died and I got a new speed control from Amazon for around $50. May want to check there. Actually ended up with two controls when their guaranteed 2 day prime shipping didn’t deliver in time.

View rwe2156's profile

rwe2156

2190 posts in 942 days


#9 posted 01-03-2016 12:55 AM

Mine will not start consistently.
A few tapes to the side and it will start running again.
Once running, it will cut out a time or two then do OK.
Speed control works ok.

I’ve had it apart, checking switch, brushes, comutator.
I’ve talked to an electronics friend he said most likely a bad wire in the winding.

Bottom line for you, MrRon, is unfortuately its probably not worth fixing. If you get a $50 part and it doesn’t fix it, they might not take it back.

My next router will be a Triton.

-- Everything is a prototype thats why its one of a kind!!

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