Thread: Mazak-Mate new to me, I have a question?

The half nut does not seem to be engaging? I would like to remove the carriage from the apron but before I do, wondering if it might be adjustment?
Has any one have an diagram of the inside of a Mazak Apron?, or adjusted one of these before?

This lathe is a month old to me, it was left outside to rust when I convinced my boss to have it sold by auction to our employees. I was lucky enough to win the auction.
I am new to this forum and seems like there is a lot of professional people here. I have read a fair amount already in the short time here, so much to learn, so little time.
I grew up with a 1932 6" Atlas Lathe my father has. It has babbit bearings in the headstock but still runs today.
Any way greetings to all here,
Eric
[http://i674.photobucket.com/albums/v.../DSCN0574.jpg]
http://i674.photobucket.com/albums/v...f/DSCN0574.jpg
Not sure how to put pics here?

most lathes have a lockout so you cant engage the feed and half nuts at the same time.

so its possible you just need to put your feed lever in neutral to get in business.


also, this was probably not the best subforum to post your question in.

Hello EJHanson,

I have a Hercules-Ajax-Mazak. It is real close to the one you have.

click pic to enlarge:


When threading you must have the direction handle (circled in red) in neutral. Looks like you have it there already.

The other handle (circled in blue) must be fully disengaged. Raise yours up a little.

Then the thread lever will engage .


Good looking lathe.

Welcome to Practical Machinist,

JAckal

That carriage looks identical to the one on my acra-turn lathe. As already stated the directional feed lever has to be in the center location to engage the half nut. If that doesn't work for you maybe you have another problem somewhere.

Probably a good thing, the oil delivery tube on the left of the apron was not in the correct place to deliver oil to the well with four feed tubes running from it (leaving the top gears dry,no damage though). Perhaps a previous disassembly caused this?
Thank you all for the replies, I understand how it works now and believe an adjustment on the small stop pin will close the half nuts to the proper engagement.
Some fresh o-rings, gasket maker (Caterpillar 1U8846, Loctite), clean up, assemble, good to go.
I am hoping the taper pin I drilled out is then same as a D8H oil pump drive gear taper pin that I know of ?
Thank you again

Do you still own this lathe?

Question for you - To be able to machine different threads, if the threads that you need do not match how the current drive gears are installed, do you have to manually install other gears in a different configuration to match your desired thread?

There are some lathes that have an extra set of gears to cut other threads and you would need to change them out. it is usually real simple.