PM-1228 tailstock?

[Enoch]

I'm probably overlooking the obvious, but I'm not sure I understand how to keep the tailstock alignment "locked".

I gone through the manual several times, and have aligned my my tailstock dead center with the headstock dead center by moving the opposing screws little bits to get the razor blade square. Problem is when I release the tailstock clamp to move it back/fourth on the bed ways, it's able to move slightly side to side, throwing off my alignment.

I've looked for some sort of locking screw, but haven't found one. Is this normal?

Chris

 

[davidpbest]

This is from the 1228 manual. Do you not find this locking screw?

 

[Enoch]

This is from the 1228 manual. Do you not find this locking screw?

View attachment 398333

No, it's not there. The little hole in the middle on the top section is just filled with body filler...

 

[SRay53TxTn]

Here's a pic of my 1228 tail stock lock screw.

I
I can get the thread pitch and diameter of it if you need it.

 

[Enoch]

Here's a pic of my 1228 tail stock lock screw.
View attachment 398336 I
I can get the thread pitch and diameter of it if you need it.

So the hole I have is where you would lock the alignment? David showed part 338, which is a M8x16.

 

[Enoch]

Here's a close-up of that hole...

 

[Enoch]

Since I just got the lathe, I'll get in touch with PM... Thanks so much for all your help!

 

[SRay53TxTn]

That

Here's a close-up of that hole...

Does not look correct to me.
Mine is threaded through and locked with a 6 x 1.0mm lock screw.

 

[Enoch]

Thank you! I just sent PM an email about it... I hope to hear from them tomorrow.

 

[SRay53TxTn]

They have always been very helpful in resolving any issues I may have had with my PM1228 lathe or my PM728 mill (not many).
Keep us posted.