Thread: CQ6230A Lathe power feed speed

Hi,
Welcome.
You arent closing the half nuts are you?
What change gears are you using?
You have the two lever QCGB?

Stuart

Just to add to the above.
For power feed you should be using the black lever(red), not the silver lever(green)
(think down is cross feed on mine. but there is a 50% chance I'm wrong lol)

Of course you may already know all this.

Stuart

Have you set your feed rate to the slowest feed.

Dont think it is your half nuts being a problem ,as you said you are cutting across.

Facing feeds are around 1/2 to a 1/4 of the longitudinal feed rate.

Originally Posted by dalvsdkg

Im having trouble trying to get a slow power feed on a brand CQ6230A lathe from Gasweld.
As soon as i engage the power feed, even at the slowest speed that i can see, it cuts at a rapid pace across the material as it would cutting a thread. Im lost and hoping someone can direct me in the right direction.
Cheers.

It sounds like you are new to the lathe. Obvious question first? Is the feed handle/dial truly engaged on the feed and not the lead position .

On my lathe ,where the dial arrow points does not necessarily means thats where the gear is engaged with the other. The markers can be off a little bit.

If your machine is similar to my lathe (a 1236A Steelmaster) the lead /feed selector dial is the top right hand of the four round dials on the gearbox underneath the headstock box.

Below this dial is the speed selection dial for S1 and S2 .
If the above is the same on your lathe the dial can be placed in position 1 or position 2 . Position 1 is the slower feed position. The slowest feed speed is.011 per rev. Select S1 and from the dials on the LH side select B from the A,B,C,D positions and 5 from the 1,2,3,4,5 positions.

These positions are selected from the positions indicated on the table on the LH end gear cover.

If your lathe is configured differently ,a clear pic of the handles / dials might be handy in order to assist you. The bottom gearbox arrangement pics of the CQ6320 lathe vary on google, this is why I am asking.


Grahame

Originally Posted by dalvsdkg

, it cuts at a rapid pace across the material as it would cutting a thread.

I took this as to mean he was cutting parallel and directions were based on this .Also see pic of Stu's lathe, mine is laid out the same as his.

I can relate to this as many years ago when I started using lathes I confused the lead with the feed.The sppeed at which the carriage is proppeled towards the rotating chuck is just plain scary!

Originally Posted by Grahame Collins

If your machine is similar to my lathe (a 1236A Steelmaster) the lead /feed selector dial is the top right hand of the four round dials on the gearbox underneath the headstock box.

Thats something I hadn't thought of, on a two shaft machine(though I'm not 100% sure it is a two shaft machine. google seems to think so and Dave Js is a two shaft I think) if you don't have the levers in the correct positions the power feed lever on the carriage does nothing, so that may lead someone new to lathes to close the halfnuts...This of course assumes that PCs interpretation of "across" is incorrect.

PICTURES!!!!!!!!!!!!

Stuart

You are a new member,
Where are our manners?

Welcome


Grahame

Welcome to the forum!.

Just to elaborate a bit on what's already been said, there is a lever that selected between threading and feeding, it has a zig-zag line on one position, and a thread looking symbol on the other. Try that in the other position.. There's another lever for reversing the feed... Then there's the feed rate or thread pitch selection gears..

I could take a picture if that's not clear enough.

Ray

Just this afternoon I was asked to review exactly the same problem on exactly the same (or closely similar) lathe.
In my case, the only way forward will be to mentor the guy while doing some simple jobs, and this is what i suggested.

Perhaps if the OP (original poster) posted some photos of the machines controls, advised an approximate location, and confirmed that PMs (private messages) would be accepted, I am sure members of this forum would be able to assist.

John.

Originally Posted by RayG

Welcome to the forum!.

Just to elaborate a bit on what's already been said, there is a lever that selected between threading and feeding, it has a zig-zag line on one position, and a thread looking symbol on the other. Try that in the other position.. There's another lever for reversing the feed... Then there's the feed rate or thread pitch selection gears..

I could take a picture if that's not clear enough.

Ray

Already had the pictures on file. Feeding position on the right, threading position on the left.

Frank.

Where's the OP gone?

Simon

Maybe we scared him off.

Come on dalvsdkg, post and tell us all how you got on.

The alternate answer may be that like so many others,he posted once and got the answer/solution needed and disappeared into the ether.

A quick inspection of a member list will show how often this happens.

I sincerely hope it is not the case as these sorts of posts can help a great deal more than just the OP.

Or maybe he is unable to post due to shift , fly in fly out work or similar.

In any case it can help others ,so lets carry on.

GRAHAME

I had another rush of excrement to the brain.If the poster had a similar set of instructions to the ones I received with my lathe, all that he may have is a photocopy of a photocopy of a parts list and thus no guidance at all.

If this is the case, dalvsdkg can look up Grizzly machinery who will probably have a lathe very close in layout to the one under discussion.The easily download-able Grizzly instructions are at this point in time, the best I have have seen yet.
pick your lathe from here https://www.grizzly.com/products/category/31

Or perhaps, if the thread is read in the future it may help get someone going and able to use those instructions to at least start and run the lathe with out hurting themselves or their new lathe.

Grahame

Originally Posted by Grahame Collins

if the thread is read in the future
Grahame

Most definitely. I've lost track of how many times I've googled something and ended up reading old posts from this forum.
Its always nice when someone drops in some solid information, photos, good links etc. It often remains relevant even years later.