Pm25mv Head Removal....

D

Dman1114

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Jun 28, 2014
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176
Ok so ...


Not sure how it happened but my upper Z saddle lock stripped out. So i plan on removing the head and the Saddle and installing a time sert to fix it.


Just one issue though. I can't get the Head off.


I have taken the 3 nuts and one bolt out from under. and i have removed the set screw from the lower right side.


I rested it on the electric box on its left side. on a clock of wood on the table. but it still wont come off.


It comes out a wisker but it hits something solid and wont budge.


I have read through the last thread that was here and tried everything i could think of. there was one set screw in the lower right side it measured at 5/8" . there was only one in there.


so now I don't know what to do i don't want to pry anything... just wanna get this head off so i can fix the stripped hole.
 
I had a similar issue, apparently there are two set screws in the hole and you must get the second one out to release the head.
 
I shined a light in there and i even blew some air in there.... i scratched around inside with a scribe.... if its in there it maybe upside down?????

Maybe i can try and drill it out with a left hand bit.... Get another one or make a small centering bushing and drill it with a left hand bit?????

when looking in the hole and wiggling the head it does move ....


just want to make sure its safe to try and drill it????
 
I never got mine off I took out the gibs and slid the whole head off. I need to take it off again and will see if I can get the set screw out, I just need a couple extra hours in the day.
 
I got it off!!

And it wasn't a second set screw...

Some sort of case hardened pin.

I ended up using a left hand drill and when I backed out the drill to have a look. (Cause it wasn't backing out. )


This is what was on the tip of my bit

20151023_175055_zps3kglnkov.jpg
 
That's just not right? :confused:

Maybe a magnet next time? Or, I'd probably leave the thing out if it were me (NOT suggesting a course of action here).
 
Dman1114 said:
I got it off!!

And it wasn't a second set screw...

Some sort of case hardened pin.

I ended up using a left hand drill and when I backed out the drill to have a look. (Cause it wasn't backing out. )


This is what was on the tip of my bit

20151023_175055_zps3kglnkov.jpg
Click to expand...

That's great, thanks for sharing!
 
Hi, newbie here, thanks for that , this is a great informative site . I just ordered a PM25mv today after sitting on the fence for some time.
 
Welcome, Sandy, You'll like the PM25, but don't expect to do Bridgeport weight work on it. I've put a lot of miles on mine since June, have found no faults (due to the machine).
 
T Bredehoft said:
Welcome, Sandy, You'll like the PM25, but don't expect to do Bridgeport weight work on it. I've put a lot of miles on mine since June, have found no faults (due to the machine).
Click to expand...
Thank you, nothing Bridgeport big on the horizon , I now have to decide on a lathe, looking at the PM10/22 or the LMS Hi Torque C4 8.5x20.
 
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