Date   

Re: Inspection thoughts? [1 Attachment]

Thomas Tallant
 

Put something under it to protect the bed and it and put a rod or
dowel in it to hang on to.




On 3/20/17, 913fred@... [SOUTHBENDLATHE]
<SOUTHBENDLATHE@...> wrote:


Lock the spindle by putting in back gear but NOT removing the locking
pin on the gear.

This is intended for normal removal only...not removing a chuck that has
frozen to the spindle.

On 03/20/2017 11:17 AM, iptvengineer@... [SOUTHBENDLATHE] wrote:

Got it home, had a little rain along the way and minor issues on the load.
Got it in the basement, but tore up the yard. Going through it now. Seems
to be in good shape. Need to find the details on lube points and the
collet system, as all the parts don't seem to be there or match. My atlas
has a pin to hold the spindle when removing the chuck. How do you get the
chucks off these?


Links:
------
[1] http://groups.yahoo.com/group/SOUTHBENDLATHE/
[2] http://groups.yahoo.com/group/SouthBendLathePix/
[3] http://groups.yahoo.com/group/SOUTHBENDLATHE/files/
[4]
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/info;_ylc=X3oDMTJlbmF2YzhyBF9TAzk3MzU5NzE0BGdycElkAzI1NzM4MzYEZ3Jwc3BJZAMxNzA1MDA3NzA5BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTQ5MDAyNjc3NA--
[5]
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/members/all;_ylc=X3oDMTJmaXFhY2RiBF9TAzk3MzU5NzE0BGdycElkAzI1NzM4MzYEZ3Jwc3BJZAMxNzA1MDA3NzA5BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE0OTAwMjY3NzQ-
[6]
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/photos/photostream;_ylc=X3oDMTJmbnVvMDQyBF9TAzk3MzU5NzE0BGdycElkAzI1NzM4MzYEZ3Jwc3BJZAMxNzA1MDA3NzA5BHNlYwN2dGwEc2xrA3ZwaG90BHN0aW1lAzE0OTAwMjY3NzQ-
[7]
https://groups.yahoo.com/neo;_ylc=X3oDMTJkZm9ldTkwBF9TAzk3NDc2NTkwBGdycElkAzI1NzM4MzYEZ3Jwc3BJZAMxNzA1MDA3NzA5BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxNDkwMDI2Nzc0
[8] https://info.yahoo.com/privacy/us/yahoo/groups/details.html
[9] https://info.yahoo.com/legal/us/yahoo/utos/terms/


Re: Inspection thoughts?

fwhite913
 

Lock the spindle by putting in back gear but NOT removing the locking pin on the gear. 

This is intended for normal removal only...not removing a chuck that has frozen to the spindle.

 

 

On 03/20/2017 11:17 AM, iptvengineer@... [SOUTHBENDLATHE] wrote:



Got it home, had a little rain along the way and minor issues on the load. Got it in the basement, but tore up the yard. Going through it now. Seems to be in good shape. Need to find the details on lube points and the collet system, as all the parts don't seem to be there or match. My atlas has a pin to hold the spindle when removing the chuck. How do you get the chucks off these?

 


Re: Inspection thoughts?

lance
 

That pin on the Atlas is an indexing pin, NOT a pin for chuck removal.
It is very easy to break it off if the chuck gets stuck.

On the SBL, lube the spindle thread with Kroil or PB Blaster
let it soak a couple minutes. Use a large adjustable pin wrench and mallet or 
a strap wrench to turn the chuck whilst you have a wedge of wood
under the step pulley. Keep the spindle thread clean and oiled
so the chuck is less likely to stick.

If the chuck is REALLY stuck on, try chucking a 2x2 tightly,
hand rotate the long part of the 2x2 to the front of the bed, 
put the lathe in reverse and turn it on. 

The lathe will rotate the 2x2 rapidly against the rear way and shock
the chuck loose. Be careful with this method, eyes, fingers etc.

_L_
+++

On Mar 20, 2017, at 12:17 PM, iptvengineer@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

My atlas has a pin to hold the spindle when removing the chuck. How do you get the chucks off these?


Re: Inspection thoughts?

Steve Epstein
 

Got it home, had a little rain along the way and minor issues on the load. Got it in the basement, but tore up the yard. Going through it now. Seems to be in good shape. Need to find the details on lube points and the collet system, as all the parts don't seem to be there or match. My atlas has a pin to hold the spindle when removing the chuck. How do you get the chucks off these?


Re: Reset needed to restore power [4 Attachments]

john baird
 

Hi John,  Have just seen the pic of the motor plate,
It seems to be a low voltage motor 208v 
and so would want 120v per leg,
As would be supplied by a single phase, to 3 phase inverter,

Regards  jb


On Sunday, 19 March 2017, 23:17, "capecad@... [SOUTHBENDLATHE]" wrote:


[Attachment(s) from capecad@... [SOUTHBENDLATHE] included below]

Hello, and thank you for the reply.

This is my fourth attempt at a response.

This is 3 phase, and I've attached the motor plate and Furnas documentation in the cover.

I added several YouTube videos to demonstrate:
Thank you,
John







Re: Reset needed to restore power

john baird
 

Hi John,   So you still have the same problem,
with the belts disconnected the motor still draws 4.6a,
per leg, compared to the bigger Bridegport motor.

Are you sure the motor terminals are linked in Wye/Star configuration ?
or at some time has it been rewound with an opposed phase,

Regards  jb


On Sunday, 19 March 2017, 23:35, "capecad@... [SOUTHBENDLATHE]" wrote:




Sorry,
I sent the wrong links:
Measuring voltage and current https://youtu.be/hZGdzW1sHGU
Motor spin down and current with no belts https://youtu.be/cq1Pht5TaYw
Motor spin down and current with belt https://youtu.be/KMQIFs45owQ
Bridgeport 2HP with no load https://youtu.be/beqSaEJ7Xjk





Re: Reset needed to restore power

capecad@...
 

Sorry,

I sent the wrong links:

Measuring voltage and current https://youtu.be/hZGdzW1sHGU
Motor spin down and current with no belts https://youtu.be/cq1Pht5TaYw
Motor spin down and current with belt https://youtu.be/KMQIFs45owQ
Bridgeport 2HP with no load https://youtu.be/beqSaEJ7Xjk


Re: Reset needed to restore power [4 Attachments]

capecad@...
 


Sent from Windows Mail

From: capecad@... [SOUTHBENDLATHE]
Sent: ‎Sunday‎, ‎March‎ ‎19‎, ‎2017 ‎7‎:‎14‎ ‎PM
To: SOUTHBENDLATHE@...

 
[Attachment(s) from capecad@... [SOUTHBENDLATHE] included below]

Hello, and thank you for the reply.


This is my fourth attempt at a response.


This is 3 phase, and I've attached the motor plate and Furnas documentation in the cover.


I added several YouTube videos to demonstrate:

Thank you,

John



Re: Reset needed to restore power

capecad@...
 

Hello, and thank you for the reply.


This is my fourth attempt at a response.


This is 3 phase, and I've attached the motor plate and Furnas documentation in the cover.


I added several YouTube videos to demonstrate:

Thank you,

John


Re: Headstock spindle bearings

eddie.draper@btinternet.com
 

Our railway's 1943 14.5" has exactly this arrangement, and I agree that it is VITAL that it be kept supplied with clean oil.  To this end, upon first taking over a lathe, before running it for the first time, and at the recommended intervals thereafter, strip the mandrel out of the headstock and muck out the oil sumps, wash or renew the felts and set it all up again according to the instructions.  Not difficult and doesn't take long.  It incidentally at least partially affords an opportunity to fit a modern endless belt if you are so minded on a rear drive machine, but I think this is impossible on an underdrive due to the headstock casting not allowing it.

The purpose of the oil grooves is not to store oil, but to circulate it.  Oil is led to the centre of the journal by the wick felt, and in the absence of the grooves would form a thick film lubrication regime, developing significant pressure on the loaded side.  The grooves interrupt that process and the oil therefore flows from the high pressure area and out the ends of the bearing where it is caught and returned to the sump.  Why do this, when thick film lubrication is infinitely to be desired?  It is all about temperature distribution.  Bearings that have low clearances and high speeds need something to prevent the work done in shearing the oil from raising local temperatures.  Naturally, the shaft would run at a higher temperature than the housing, which has a greater ability to get rid of heat by convection, conduction & radiation.  The shaft running at a higher temperature means it would expand more than the housing in the running condition, which means you would need a larger clearance in the stationary or slow speed condition, something which is not desirable in a precision machine tool.  The combination of the felt's wicking ability (to establish oil flow) the bearing clearance, the oil viscosity (ISO 22) and the bearing speed are all interdependent in order to prevent thermal runaway and seizure.

Personally, I feel that SB have rather overdone the circulation grooves, as the lands between them occupy only small angles and this would result in very poor hydrodynamic (i.e. non contact) lubrication, especially at slow speeds and the associated high loads.  However, it seems to work.

If faced with a lathe with this arrangement that had had the headstock bearings wrecked by negligence, I would either whitemetal in situ, bore & scrape, or bore out for bronze shells and whitemetal those.  The shaft would probably have to be ground, but I suspect it is case hardened in some way, so that would need to be checked first.

Eddie


Re: 16" sb quick change

vern bartlett
 

How much for the gear box and banjo. Do you have any pictures of it gary roberts


Re: gits oiler

John Smith <toryranger53@...>
 

On Thu, Mar 16, 2017 at 3:22 PM, johnnyblock1@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:


Hi, I need  the gits oiler for the apron on my 9C. The part number is PT2677NR1. I was looking through the files but had no luck tracking down the actual gits designation. The 10 inch number was there, but not the 9 inch. If any one knows how I can order this oiler please let me know. Thanks, John.





Re: gits oiler

wmrmeyers@...
 

Might be sacreligious to mention here but I found Gits oilers onAmazon.com for my Atlas MF milling machine. McMaster-Carr does have an advantage IIRC, in that their on-line catalog has the things arranged by type and dimensions. Seems to me some are threaded, some push in, and come in various sizes.

I couldn't order from them for some forgotten reason, so went with Amazon.

HTH!

Bill in OKC


Re: gits oiler [1 Attachment]

carbure2003
 


Re: gits oiler

fwhite913
 

Jim has a good idea.  Also search eBay for a similar one.  If you look them up on the internet, they come in various styles and sizes,  Probably SB used an "off the shelf" design for the one on your lathe.  That has been my experience with the oilers on other restoration projects.

Fred

 

 

On 03/16/2017 04:09 PM, rata221@... [SOUTHBENDLATHE] wrote:



Johnnyblock1
You can find all those Gits oilers on McMaster-Carr website.  They are easy to match up - if you pulled the old one and know the hole size.  Some are threaded and some are press fit.
Some of the elbow style ones look different than the old ones -now appear to be cast -not formed.
Jim

 


Re: gits oiler

rata221
 

Johnnyblock1
You can find all those Gits oilers on McMaster-Carr website.  They are easy to match up - if you pulled the old one and know the hole size.  Some are threaded and some are press fit.
Some of the elbow style ones look different than the old ones -now appear to be cast -not formed.
Jim


gits oiler

John Gallo
 

Hi, I need  the gits oiler for the apron on my 9C. The part number is PT2677NR1. I was looking through the files but had no luck tracking down the actual gits designation. The 10 inch number was there, but not the 9 inch. If any one knows how I can order this oiler please let me know. Thanks, John.


Re: 16" sb quick change

vern bartlett
 

How much?

On Mar 14, 2017 12:46 PM, "gary roberts zsupercharged@... [SOUTHBENDLATHE]" <SOUTHBENDLATHE@...> wrote:
 

I have a single lever gear box for a 16 SB


On Saturday, March 11, 2017 2:40 PM, "silverrs@... [SOUTHBENDLATHE]" <SOUTHBENDLATHE@yahoogroups.com> wrote:


 
Check out on the \menu\Files\Techinfo\Gear Box, Gears & Gearing\
See item 45 to 54.




Nice looking SBL on Ebay UK

eddie.draper@btinternet.com
 


Re: 16" sb quick change

gary roberts
 

I have a single lever gear box for a 16 SB


On Saturday, March 11, 2017 2:40 PM, "silverrs@... [SOUTHBENDLATHE]" wrote:


 
Check out on the \menu\Files\Techinfo\Gear Box, Gears & Gearing\
See item 45 to 54.



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