Hardinge HLV-H Cross Slide Screws?

rpseguin · May 15, 2021

Hardinge HLV-H Cross Slide Holes/Screws?

What are these 4 screws/threaded holes on the Hardinge HLV-H cross slide near the outside edge, surrounding the cross-slide nut slot and cover?

3 of mine have set screws in them and the 4th is empty, probably missing.

I've looked at the parts list, and from what I can tell, it is identified as diagram item 19, part # 0550604 on page 52 of PL-7A HLV-H Parts List

I couldn't discern anything from the maintenance manual either.

I'm wondering what function they serve. Are they are just there for accessory use? Hoping I could use them to attach some way covers.

rpseguin · May 15, 2021

Or, what is screwed into those holes on your HLV-H cross slide?

FredC · May 15, 2021

rpseguin said:
Or, what is screwed into those holes on your HLV-H cross slide?

Way covers could work. I think the intended purpose is for the attaching steady rest. Perhaps the turret that can replace the compound also.

L Vanice · May 15, 2021

Those four holes are to mount the rear tool holder on an HLV-H. I had those parts, but never used them and sold them in 2010. I do have a picture that shows the parts and the drawing that Hardinge supplied with the new base I bought. The four holes may need to be added by the owner, hence the drawing. The holes are not always used, so they are plugged with set screws to keep out chips.

Larry

Mark Rand · May 15, 2021

Umm. The follower rest attaches to the three holes on the saddle, not the cross slide. They also need to be kept plugged in normal use.

:cheers:

FredC · May 15, 2021

Makes sense they need to be attached to the carriage otherwise you could not face out on a shoulder on the end of a cut if it was attached to the cross slide.

On the big turret that replaces the compound does it use any of those cross slide holes or is it only held by the compound clamp cam?

Stradbash · May 15, 2021

FredC said:
Makes sense they need to be attached to the carriage otherwise you could not face out on a shoulder on the end of a cut if it was attached to the cross slide.

On the big turret that replaces the compound does it use any of those cross slide holes or is it only held by the compound clamp cam?

The four position turret tool holder is attached using just the cam bolt. It does have two screws that press against the side of the slide for adjustment and rigidity.

Sent from my iPhone using Tapatalk

rpseguin · May 16, 2021

L Vanice said:
Those four holes are to mount the rear tool holder on an HLV-H. I had those parts, but never used them and sold them in 2010. I do have a picture that shows the parts and the drawing that Hardinge supplied with the new base I bought. The four holes may need to be added by the owner, hence the drawing. The holes are not always used, so they are plugged with set screws to keep out chips.

Larry

View attachment 321124 View attachment 321125

Thanks!!
Any chance for a higher resolution picture of the drawing?
Pretty please!

Thanks!

L Vanice · May 16, 2021

rpseguin said:
Thanks!!
Any chance for a higher resolution picture of the drawing?
Pretty please!

Thanks!

I cropped it and can read it OK on my screen. You can open the image and then click on it and hold Ctrl and + (once or more) to make the screen image larger.

Larry

rpseguin · May 17, 2021

L Vanice said:
View attachment 321228

I cropped it and can read it OK on my screen. You can open the image and then click on it and hold Ctrl and + (once or more) to make the screen image larger.

Larry

Thank you!!

rpseguin · May 22, 2021

car2 said:
The rear tool slide (and base) can be a pretty handy gadget. They come up for sale rarely on Ebay, "L3" and "L4" base and slide. The slide is also used with DV lathes. It gives an additional tool position, and particularly good for parting and grooving. So with a tool in the compound, rear-slide, tailstock, and a headstock-mounted cutoff slide--you have 4 active tool positions for simple repetitive tasks on a number of parts (I've mounted two tools on occasion on the rear slide, and used all 5 tools). Cheers
View attachment 321404

That’s cool!
As it turns out, mine came with the L3 and L4. I had no idea what they were until doing a bit of searching.
Your picture is the best I’ve seen of one mounted.

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Hardinge HLV-H Cross Slide Screws?

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