What's new
What's new

Whacheon HL-460 threading confusion

GregSY

New member
I'm wondering if anyone can decipher my lathe (Whacheon HL-460) with regards to cutting metric threads.

Sorry if these pics do not show up rotated the right way.

First, I do have the manual. But, I notice the manual identifies various levers in the wrong position. So that kinda adds to the confusion.

I want to cut 1.0 metric threads...1 thread per mm.

So....how do I read these charts? My lathe is presently set up with the 36/72 gear set.



whacheon thread plate mm.jpgwhacheon thread plate in.jpgwhacheon manual threading.jpg
 

jariou

Member
You should also include pictures of the lever choices. From what you show us, it believe I would know how to cut 1mm pitch thread. But I don't know your lathe. I don't know what A or B means.

You need to provide enough information for us to be able to help.

Good luck.

Jacques

Sent from my SM-G998U1 using Tapatalk
 

jariou

Member
Just to clarify. I believe the information you need is the middle line here.

Then you need to translate this into meaningful settings for your lathe.
b628d3afeb209aa34ea3920cf50f413b.jpg


Sent from my SM-G998U1 using Tapatalk
 

GregSY

New member
Here is a photo of the levers. When I look in my manual, they are labeled differently.

In any case, I think my real question is....how would I thread metric threads if I didn't have the chart in the manual? If I only look at the nameplates on the lathe....I don't see how I'd get there. Also, the chart in the manual is 'clear as mud' in some cases....for example What is L and D on the chart?


hl460 levers.jpg
 

sfriedberg

Active member
Also, the chart in the manual is 'clear as mud' in some cases....for example What is L and D on the chart?
If you look carefully at your 3rd photo, L & D appear in the "Change Gear" box toward the lower left. I am not sure what "L" and "D" stand for, but I'm pretty sure they are talking about which gear is used to drive the feed. I also notice that there's an L and a D sub-row for each_x_x_x_x_most pitch row in the chart. So I am going to take a guess that L is for "levo" and D is for "dextro" and they refer to left-hand and right-hand threads, which you would get by interposing or removing an idler in the change gear train.

Unless that's all spelled out on some other page, I agree that it's clear as mud.
 

Mr.Smith

Member
Mine is a Cadillac by Yam, a Mori copy.

L & D are referenced at the bottom of your photo of the tables from the manual. They show the change gear configuration for the corresponding lever positions. You state your lathe is configured 36/72 so you would primarily only use the data in the lines labeled 36/72, however designated in each column.

On the tables I believe the left column is for 36/72 gearing and the right column is for 72/72 gearing only. I am GUESSING, with 36/72 gearing, the "L" in the left column shows an alternate lever configuration that would thread as if the gearing were 72/72 without requiring you to make an actual gear change.

Using 36/72 your lever settings for a 1.0mm thread would be A-D-F-G, knob position 1.

Maybe your thread plate is missing. Mine is located inside the change gear cover. Attached are photos of the plate and of the controls. I appreciate the photo of the page from your manual. I think it shows what settings I could use if I go to the 36/72 configuration. My plate didn't have this information.

Yes, mud.

Thank you,
Mr.Smith

Thread table.jpgControls.jpg
 

GregSY

New member
Interesting. I'll go look inside the cover.

As for cutting left and right hand threads, the DC lever (lower left) reverses rotation of the main screw but the lever that is above it by the spindle speed levers changes the rotation of the threading screw. So it would seem you'd use that screw and not the bottom screw.

Well....at least I am feeling not completely dumb in my confusion. There are other references in this manual - like the one that calls for Fig 5 No. 2 - that refer to nothing of use. When you look up Fig 5, it has nothing to do with threading.
 








 
Top