Dead Router -- Screws Won't Turn - Router Forums
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 07-17-2009, 11:43 AM Thread Starter
Join Date: Jul 2009
Posts: 10
Default Dead Router -- Screws Won't Turn

Hi, folks. I would be happy to take this to a professional, but they are all hundreds (thousands?) of miles away, and I need this now, of course.

My Hitachi M12v is about 4 years old (I purchased it from It has occasionally not operated when the switch was turned on, but I guessed that the motor had stopped where the brushes were not making electrical contact, and a moderate thump on the side or sometimes turning the bit by hand (with the switch off, of course), always got it going again.

The last week it had been doing this much more frequently, but it always came around quickly until yesterday, when it just coasted to a stop in the middle of routing an edge on some pine. I wasn't taking a very big bite, either (low load).

I checked the power and flipped the switch a couple of times, and at first it would make literally a couple of revolutions and then remain remain stationary. Now it is totally dead.

The household power supply if fine The brushes are like new. There is no sign of any damage to the cord or plug. The main shaft turns freely. The motor was not overly hot.

I must confess to having banged it a bit, not because of it not starting, but because it was sticking in the up position (it is table mounted, and I just installed a lever-type lift assist device), and I was lifting it and letting it drop to get it up-stuck -- this is WITH the springs installed.

My best guess is that a connection in its internal power circuit has come loose. My plan was to open it up to see if I could find a a wire to reconnect, as I have successfully done with a belt sander and a jigsaw when they each just stopped working. The case appears to open via four smallish Phillips-head screws on the bit-end of the assembly.

The immediate problem is that those little %&*^(&*(*@&(*A&(*#(*$# screws will NOT budge. It would seem that Hitachi wants to be the only one examining its innards. Any suggestions?
Tsember is offline  
Sponsored Links
post #2 of 5 (permalink) Old 07-17-2009, 07:42 PM
Join Date: Jul 2009
Posts: 18

Take a small soldering iron - 25-45 watts and heat the machine srew head up until quite warm, and then try and loosen the screw. This will soften any thread locker used during assembly. If tapped intop plastic, be careful not to overheat the screw and melt the plastic.
byacey is offline  
post #3 of 5 (permalink) Old 07-17-2009, 10:10 PM
Registered User
Join Date: Mar 2009
Country: United States
First Name: Lance
Posts: 296

Do you have one of these impact drivers:KD Tools 1140 - Impact Driver Set 3/8in. With Impact Bits ?
They never fail to do the job,for me.

Sawdust is not dirt
westend is offline  
Sponsored Links
post #4 of 5 (permalink) Old 07-18-2009, 08:14 AM
Retired Moderator
Mike's Avatar
Join Date: Nov 2004
Country: United States
First Name: Mike
Posts: 11,921
Send a message via Skype™ to Mike

Merri, we ask you to fill out your profile so we can better assist you. Where are you located?

"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"
Mike is offline  
post #5 of 5 (permalink) Old 10-06-2009, 09:55 PM Thread Starter
Join Date: Jul 2009
Posts: 10

Thanks for the suggestions -- I'll give them a try ASAP. I got that project done by borrowing a router from a neighbor, but now want to get my own setup working again.

I will edit my profile as requested/reminded (thank you), but FYI in the meantime, I'm in Los Alamos, New Mexico.
Tsember is offline  

Quick Reply

Register Now

In order to be able to post messages on the Router Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
New Router my way reible General Routing 21 12-08-2018 11:06 AM
Freud FT3000VCE 3-1/4 HP Variable Speed Plunge Router Bridge General Routing 9 11-01-2010 08:18 PM
Dead Router Kricci General Routing 4 10-13-2009 09:19 AM
ROUTER TABLE Undermount Set UP jkirkhart35 Table-mounted Routing 6 11-23-2007 06:19 PM
Newbie with an unusual router application wm_brant General Routing 6 10-31-2007 03:16 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome