[Mill] Trans World Steel Vhm-728 Vertical/horizontal Milling Machine

[Isotherm]

Greetings Ulma Doctor
It would appear that I own a very close sibling to your TWS VHM-728 (see attached). I can't find a copy of the owners manual and I saw that you had the original that came with your machine. Is there any chance that I could get you to scan it and send me a copy?
For the life of me, I can't figure out how to unlock the the vertical feed in the headstock so that I can use the drill-press lever without removing the gear on the side of the headstock - I was hoping there was a more convenient means shown in the manual. Plus, I've never used the horizontal feature and it would be really helpful to have the manual when I do.
Many thanks in advance,
Isotherm

 

[Ulma Doctor]

Greetings Ulma Doctor
It would appear that I own a very close sibling to your TWS VHM-728 (see attached). I can't find a copy of the owners manual and I saw that you had the original that came with your machine. Is there any chance that I could get you to scan it and send me a copy?
For the life of me, I can't figure out how to unlock the the vertical feed in the headstock so that I can use the drill-press lever without removing the gear on the side of the headstock - I was hoping there was a more convenient means shown in the manual. Plus, I've never used the horizontal feature and it would be really helpful to have the manual when I do.
Many thanks in advance,
Isotherm

Hi @Isotherm,
here is copies of the manuals and info i have

the last attachment is the 1979 Jet tool catalog entries, skip to page 34 for the Jet VHM-728 a direct kin

 

[Ulma Doctor]

to unlock the quill,
there is lock lever on the front of the vertical head near the spindle protrusion, on the lower right side of the head.
unlock the lever.
on the left side of the head, there is a knurled cap about 2" in diameter.
simply unscrew the cap CCW a few threads until you can operate the hand lever on the right side of the head
for quill extension and retraction, respectively

 

[Isotherm]

Many thanks!

 

[middle.road]

I scored one of those all metal worm drives (6-1/2" Blade) back in the 90's from a retired gent.
Truck was broken into here in TN in '05 and the lowlifes got that and a bunch of other stuff.
That brute was strong. Miss it to this day.
-=-
Sloffing off today, trying to stay warm, can't get motivated to do anything productive.
However I just ran the above .PDFs through an OCR program and now the document text can be searched on.

 

[Jcheato]

Just recently picked up a jet version of this mill. It is a 1985 hvm-730. Made by Dah-Lih. It has an r8 vertical and what seems to be an r8 or 30 taper horizontal. The horizontal has drive keys on it, has no alignment pin for an r8 collet, and is 31mm taper width at the face. The drive keyway for the horizontal are 0.625 wide and 1/4-20 thread.

Does anyone know that the drive is actually supposed to be? Also cannot find any documentation on old machines that would be some sort of 30 taper, require a draw bar, but also be for a horizontal mill.

Thanks.

 

[Ulma Doctor]

Just recently picked up a jet version of this mill. It is a 1985 hvm-730. Made by Dah-Lih. It has an r8 vertical and what seems to be an r8 or 30 taper horizontal. The horizontal has drive keys on it, has no alignment pin for an r8 collet, and is 31mm taper width at the face. The drive keyway for the horizontal are 0.625 wide and 1/4-20 thread.

Does anyone know that the drive is actually supposed to be? Also cannot find any documentation on old machines that would be some sort of 30 taper, require a draw bar, but also be for a horizontal mill.

Thanks.

AFAIK, it has NMTB30 taper.
yes it requires a draw bar

 

[Jcheato]

AFAIK, it has NMTB30 taper.
yes it requires a draw bar

Thank you very much. Been trying to find arbor tooling because most looks like 90 degree horizontal adapter stuff