Hitachi KM12VC Collet Stuck - Router Forums
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 29 (permalink) Old 02-16-2015, 08:34 PM Thread Starter
Registered User
 
Join Date: Feb 2015
Country: United States
First Name: N/a
Posts: 16
 
Default Hitachi KM12VC Collet Stuck

Hi All, I have run into a bit of an issue here and I am hoping someone can help!

I picked up a KM12VC router off CL a month or so ago, but just managed to find the free time to give it a test drive. Unfortunately I was unable to do such testing because I cannot get a bit into the router.

To the best of my descriptive ability I will say that it seems the 1/2" collet is stuck down in the collet sleeve making it impossible to fit a bit in the machine. Typically the collet would be towards the top of the sleeve and tighten down on the bit as the nut is tighten, but with the nut completely removed the collet is still stuck down there and I cannot figure out how to get it to loosen/raise/remove. Hopefully the way I have described this makes sense to someone?

User danngossman posted what I thought was a similar issue about a month ago but it seems his may have been slightly different and his solution involved a lot of leverage and a pair of pliers which may have now caused him more issues from what I was reading in his thread. I am hoping I dont have to go down the brut force issue as I really dont even see how that will fix it, but the manual doesnt go into enough detail to help with this type of thing so I am stuck.

Router genius' please help!

Chad
Attached Thumbnails
Click image for larger version

Name:	unnamed-1.jpg
Views:	229
Size:	33.1 KB
ID:	93633  

Click image for larger version

Name:	unnamed.jpg
Views:	204
Size:	30.8 KB
ID:	93641  

Chilton88 is offline  
Sponsored Links
Advertisement
 
post #2 of 29 (permalink) Old 02-17-2015, 02:14 AM
Moderation Team
 
Semipro's Avatar
 
Join Date: Mar 2013
Country: United States
First Name: John_*
Posts: 6,468
 
Default Collet

Here is a picture of what you should have
The collet snaps into the nut I can not see inside well enough to tell if it is the right collet or not the reason you found it on CL is someone has jamed that collet into it
you will have to get it out and buy a new collet and nut 12 to 15 dollars
The shaft is tapered inside
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	157
Size:	94.1 KB
ID:	93697  


Last edited by Semipro; 02-17-2015 at 02:22 AM.
Semipro is online now  
post #3 of 29 (permalink) Old 02-17-2015, 08:51 AM Thread Starter
Registered User
 
Join Date: Feb 2015
Country: United States
First Name: N/a
Posts: 16
 
Default

Quote:
Originally Posted by Semipro View Post
Here is a picture of what you should have
The collet snaps into the nut I can not see inside well enough to tell if it is the right collet or not the reason you found it on CL is someone has jamed that collet into it
you will have to get it out and buy a new collet and nut 12 to 15 dollars
The shaft is tapered inside
Thanks for the feedback Semipro! I thought this may be the issue when I saw the 1/4" collet that comes with the router, as it is still stuck in the nut, but I wasn't sure if they were both supposed to look that way...sounds like they are. I don't mind getting a new one as I got the router for pretty cheap, I honestly am just not sure how I am going to get the existing one out of the shaft?
Chilton88 is offline  
Sponsored Links
Advertisement
 
post #4 of 29 (permalink) Old 02-17-2015, 09:17 AM
Forum Contributor
 
Stick486's Avatar
 
Join Date: Jan 2013
Country: United States
First Name: Stick
Posts: 25,326
 
Default

sometimes an easy out works....
another is draw/slide hammer if you can hook on to the bottom side of the collet...
soak the collet in a mix of acetone and ATF for a few hours 1st...
mix the acetone/ATF at a ratio of 1:1

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

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
post #5 of 29 (permalink) Old 02-17-2015, 09:43 AM
Moderation Team
 
Semipro's Avatar
 
Join Date: Mar 2013
Country: United States
First Name: John_*
Posts: 6,468
 
Default

First you need to do this carefully no hammering
Do as Stick mentioned you may also cut a hole in a plastic bag to fit over shaft and tape it to keep junk out motor housing using a Dremel and small cutter carefully cut the top of collet above one of the slots

Looking forward to your participation.
Filling out your profile to include (first name,tools and short bio is strictly (optional )but does help members to better relate to each other.
Thank You John
Semipro is online now  
post #6 of 29 (permalink) Old 02-17-2015, 09:53 AM Thread Starter
Registered User
 
Join Date: Feb 2015
Country: United States
First Name: N/a
Posts: 16
 
Default

Quote:
Originally Posted by Stick486 View Post
sometimes an easy out works....
another is draw/slide hammer if you can hook on to the bottom side of the collet...
soak the collet in a mix of acetone and ATF for a few hours 1st...
mix the acetone/ATF at a ratio of 1:1
Thank you for the advice Stick! I wish I could just remove the shaft and tap it out from the other side, would make my life much easier right now...

Excuse my ignorance but on the ATF/Acetone mix would I put the router, shaft downwards, and rest it in that or put that mix in the shaft? I would assume I would not want to put that in the shaft as I would think it could drain down into the motor and mess up other stuff but maybe it is sealed off and it is fine that way?

Quote:
Originally Posted by Semipro View Post
First you need to do this carefully no hammering
Do as Stick mentioned you may also cut a hole in a plastic bag to fit over shaft and tape it to keep junk out motor housing using a Dremel and small cutter carefully cut the top of collet above one of the slots
Thanks again Semipro, the Dremel option actually sounds like it might be the easiest since the pretty much all require a replacement collet in the end (with the exception of the slide hammer), I am just hoping the collet/nut will be the only needed replacement at the end of this adventure - thank you guys for all this help!
Chilton88 is offline  
post #7 of 29 (permalink) Old 02-17-2015, 10:40 AM
Forum Contributor
 
Stick486's Avatar
 
Join Date: Jan 2013
Country: United States
First Name: Stick
Posts: 25,326
 
Default

Quote:
Originally Posted by Chilton88 View Post
Thank you for the advice Stick! I wish I could just remove the shaft and tap it out from the other side, would make my life much easier right now...

Excuse my ignorance but on the ATF/Acetone mix would I put the router, shaft downwards, and rest it in that or put that mix in the shaft? I would assume I would not want to put that in the shaft as I would think it could drain down into the motor and mess up other stuff but maybe it is sealed off and it is fine that way?



Thanks again Semipro, the Dremel option actually sounds like it might be the easiest since the pretty much all require a replacement collet in the end (with the exception of the slide hammer), I am just hoping the collet/nut will be the only needed replacement at the end of this adventure - thank you guys for all this help!
dip the end of the shaft into a thimble of the solution...
you'll find that the shaft isn't hollow and only machined on the end to accept the collet.. at least it's that way on all of mine...

my 1st improvised slide hammer for this same job was nothing more than a cotter puller and a pair of pliers for the slide hammer... a few really easy repetitious taps w/ the pliers against the puller's handle was all it took... and I mean easy...
brute anything is not required....

key pullers... note the hook on the end...
FWIW... I didn't anchor or restrain the motor and it only took a couple three taps to ''get'er'' done...
if yours is ''that'' stuck... time for plan ''B''...


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

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”

Last edited by Stick486; 02-17-2015 at 10:44 AM.
Stick486 is online now  
post #8 of 29 (permalink) Old 02-17-2015, 10:43 AM Thread Starter
Registered User
 
Join Date: Feb 2015
Country: United States
First Name: N/a
Posts: 16
 
Default

Quote:
Originally Posted by Stick486 View Post
dip the end of the shaft into a thimble of the solution...
you'll find that the shaft isn't hollow and only machined on the end to accept the collet.. at least it's that way on all of mine...

my 1st improvised slide hammer for this same job was nothing more than a cotter puller and a pair of pliers for the slide hammer... a few really easy repetitious taps w/ the pliers against the puller's handle was all it took... and I mean easy...
brute anything is not required....

key pullers... note the hook on the end...

You talked me into it You make it sound very easy so I'll give that a try before I start cutting away, how long does it need to be in the solution or is it just a dip?

Thanks again for the all ideas!
Chilton88 is offline  
post #9 of 29 (permalink) Old 02-17-2015, 10:54 AM
Forum Contributor
 
Stick486's Avatar
 
Join Date: Jan 2013
Country: United States
First Name: Stick
Posts: 25,326
 
Default

once you get that collet removed consider it toast and you'll need to polish the inside of the inside of the shaft...
Attached Files
File Type: pdf Collet_Maintenance.pdf (86.2 KB, 102 views)

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

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
post #10 of 29 (permalink) Old 02-17-2015, 11:08 AM
Forum Contributor
 
Stick486's Avatar
 
Join Date: Jan 2013
Country: United States
First Name: Stick
Posts: 25,326
 
Default

this what I have now...

Bearing puller kits by SKF - Fast and easy bearing dismounting

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

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in











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
A suggestion from Maurice harrysin Woodturning and Lathes 48 12-08-2013 10:16 AM
Need help with broken collet and stuck bit on a brand new Hitachi M12VE. kracken41 General Routing 33 12-20-2012 07:27 PM
1/4" Collet for Hitachi M12V RzzB General Routing 53 07-26-2011 11:32 AM
Stuck collet on router - help tkm795 General Routing 5 01-13-2011 09:53 PM
Router Hitachi KM12VC Manual Manuals Hitachi Manuals 0 12-16-2010 01:30 AM

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