MWF FEED
23rd July 2018, 10:30 AM
Hey all, Novice machinist here but experienced mechanic/fabricator. I recently got a hold of a old Herbert Nuttall lathe, initial thread about aquiring the machine can be found here:Is this lathe worth getting / restoring (http://www.woodworkforums.com/f65/t201720-lathe-worth-getting-restoring)
I'll start off with a few pics of it as I received it.
nutal herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374345&d=1532299797)Alfred Herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374346&d=1532299816)belt guard.jpg (http://metalworkforums.com/attachment.php?attachmentid=374347&d=1532299862)belt guard removed.jpg (http://metalworkforums.com/attachment.php?attachmentid=374343&d=1532297982)
Its build date is 29th July 1942, Back in the day when World War 2 was well underway. I wish the lathe could talk to tell me its story of what its been up to for the last 76 years!
fr_4413_size640.jpg (http://metalworkforums.com/attachment.php?attachmentid=374342&d=1532297796)
Now unfortunately the bedways have quite abit of damage (scrapes, dents, chips etc) and I considered not going ahead with the project but after some input from the forum I believe even with the damage the majority of the way is still at "original" height and enough to bear the loads and the scrapes etc are just nice cavities to hold a reserve of way oil... that's what I like to tell myself anyway. I was thinking of making up a "burr file" and lightly stoning the ways to remove any high spots/burrs
Rear way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374348&d=1532299908)Front way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374349&d=1532299909)
Since I only have single phase in my workshop, did abit of research and with alot of help from BOBL I think ill be going with a Powtran PI160 2.2kw VFD, the existing motor is a 2HP 1100rpm 3phase but the delta or star connection is within the motor so not so easy to convert to 240v 3phase. Will likely get a 3HP 1400rpm 4pole motor from ConanMotor
Now ill start off by saying I have alot of other stuff going on atm and the lathe isnt really a priority so it will be a slow process. At this stage im just in the research stage and hence will be starting with a bunch of questions :)
1. I plan to strip the machine down as far as possible. is there any parts that I should NOT disassemble at all as they will be very hard to re-assemble and get set up correctly, thinking mainly the head stock off the bed?
2. The machine has little what I guess is a oil pot above the spindle bearings, I pulled the intact one out and it looks like your supposed to put abit of oil (what type?) around the outside and there is a wick that im guessing through capillary action slowly transfers the oil to the bearings when the machines running so I guess you just need to make sure its always has oil available. as you can see one of of them is damaged. What are these oil pots called and does anywhere sell new ones in the same style?
oilers.jpg (http://metalworkforums.com/attachment.php?attachmentid=374344&d=1532299698)
3. The machine has a plaque saying "use oil only do not use grease" but there is a bunch of zerk fittings which looked to have a gray grease residue on them (moly grease?) im sure once I open it up ill find if its full of moly grease or oil but yea just abit confused, is it possible someone has replaced most of the oil pots like in question 2 with Zerk fittings and incorrectly used grease? as ive never seen a "oil gun" that can connect and inject oil into a zerk fitting, only other types of oilers ive seen are flat with a little ball you push in a little with a standard oil can.
oilonly.jpg (http://metalworkforums.com/attachment.php?attachmentid=374350&d=1532300058)zerk1.jpg (http://metalworkforums.com/attachment.php?attachmentid=374352&d=1532300488)zerks.jpg (http://metalworkforums.com/attachment.php?attachmentid=374351&d=1532300479)
4. Apron functions, Since the lathe is currently not running I cant just test it out but just wondering what are the functions on the carriage apron.
#1 not sure at all?
#2 is labelled "sliding" and "surfacing" not sure what that means but turning it one way drops a gear down lower that I can see through the hole in #3 area
#3 engages that gear from #2 from what I can see so im guessing this is the "half nut" function to engage the power feed?
#4 is obvious, but just wanted to note it also has a zerk in the center altho its missing the ball and seems to be clogged up.
saddle.jpg (http://metalworkforums.com/attachment.php?attachmentid=374353&d=1532300999)
Thanks guys, Im not sure whether or not to wait until I have the VFD/Motor going so I can test the lathe out as is... or strip it down straight away and make sure all the internals are good before going any further...
Attached Images
http://metalworkforums.com/images/attach/jpg.gif saddle.jpg (http://metalworkforums.com/attachment.php?attachmentid=374353&d=1532300999) (158.2 KB)
http://metalworkforums.com/images/attach/jpg.gif zerk1.jpg (http://metalworkforums.com/attachment.php?attachmentid=374352&d=1532300488) (128.3 KB)
http://metalworkforums.com/images/attach/jpg.gif zerks.jpg (http://metalworkforums.com/attachment.php?attachmentid=374351&d=1532300479) (144.5 KB)
http://metalworkforums.com/images/attach/jpg.gif oilonly.jpg (http://metalworkforums.com/attachment.php?attachmentid=374350&d=1532300058) (127.4 KB)
http://metalworkforums.com/images/attach/jpg.gif oilers.jpg (http://metalworkforums.com/attachment.php?attachmentid=374344&d=1532299698) (193.4 KB)
http://metalworkforums.com/images/attach/jpg.gif fr_4413_size640.jpg (http://metalworkforums.com/attachment.php?attachmentid=374342&d=1532297796) (155.4 KB)
http://metalworkforums.com/images/attach/jpg.gif belt guard removed.jpg (http://metalworkforums.com/attachment.php?attachmentid=374343&d=1532297982) (89.4 KB)
http://metalworkforums.com/images/attach/jpg.gif nutal herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374345&d=1532299797) (191.8 KB)
http://metalworkforums.com/images/attach/jpg.gif Alfred Herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374346&d=1532299816) (216.2 KB)
http://metalworkforums.com/images/attach/jpg.gif belt guard.jpg (http://metalworkforums.com/attachment.php?attachmentid=374347&d=1532299862) (93.5 KB)
http://metalworkforums.com/images/attach/jpg.gif Rear way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374348&d=1532299908) (132.4 KB)
http://metalworkforums.com/images/attach/jpg.gif Front way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374349&d=1532299909) (152.8 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=202089&goto=newpost)
I'll start off with a few pics of it as I received it.
nutal herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374345&d=1532299797)Alfred Herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374346&d=1532299816)belt guard.jpg (http://metalworkforums.com/attachment.php?attachmentid=374347&d=1532299862)belt guard removed.jpg (http://metalworkforums.com/attachment.php?attachmentid=374343&d=1532297982)
Its build date is 29th July 1942, Back in the day when World War 2 was well underway. I wish the lathe could talk to tell me its story of what its been up to for the last 76 years!
fr_4413_size640.jpg (http://metalworkforums.com/attachment.php?attachmentid=374342&d=1532297796)
Now unfortunately the bedways have quite abit of damage (scrapes, dents, chips etc) and I considered not going ahead with the project but after some input from the forum I believe even with the damage the majority of the way is still at "original" height and enough to bear the loads and the scrapes etc are just nice cavities to hold a reserve of way oil... that's what I like to tell myself anyway. I was thinking of making up a "burr file" and lightly stoning the ways to remove any high spots/burrs
Rear way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374348&d=1532299908)Front way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374349&d=1532299909)
Since I only have single phase in my workshop, did abit of research and with alot of help from BOBL I think ill be going with a Powtran PI160 2.2kw VFD, the existing motor is a 2HP 1100rpm 3phase but the delta or star connection is within the motor so not so easy to convert to 240v 3phase. Will likely get a 3HP 1400rpm 4pole motor from ConanMotor
Now ill start off by saying I have alot of other stuff going on atm and the lathe isnt really a priority so it will be a slow process. At this stage im just in the research stage and hence will be starting with a bunch of questions :)
1. I plan to strip the machine down as far as possible. is there any parts that I should NOT disassemble at all as they will be very hard to re-assemble and get set up correctly, thinking mainly the head stock off the bed?
2. The machine has little what I guess is a oil pot above the spindle bearings, I pulled the intact one out and it looks like your supposed to put abit of oil (what type?) around the outside and there is a wick that im guessing through capillary action slowly transfers the oil to the bearings when the machines running so I guess you just need to make sure its always has oil available. as you can see one of of them is damaged. What are these oil pots called and does anywhere sell new ones in the same style?
oilers.jpg (http://metalworkforums.com/attachment.php?attachmentid=374344&d=1532299698)
3. The machine has a plaque saying "use oil only do not use grease" but there is a bunch of zerk fittings which looked to have a gray grease residue on them (moly grease?) im sure once I open it up ill find if its full of moly grease or oil but yea just abit confused, is it possible someone has replaced most of the oil pots like in question 2 with Zerk fittings and incorrectly used grease? as ive never seen a "oil gun" that can connect and inject oil into a zerk fitting, only other types of oilers ive seen are flat with a little ball you push in a little with a standard oil can.
oilonly.jpg (http://metalworkforums.com/attachment.php?attachmentid=374350&d=1532300058)zerk1.jpg (http://metalworkforums.com/attachment.php?attachmentid=374352&d=1532300488)zerks.jpg (http://metalworkforums.com/attachment.php?attachmentid=374351&d=1532300479)
4. Apron functions, Since the lathe is currently not running I cant just test it out but just wondering what are the functions on the carriage apron.
#1 not sure at all?
#2 is labelled "sliding" and "surfacing" not sure what that means but turning it one way drops a gear down lower that I can see through the hole in #3 area
#3 engages that gear from #2 from what I can see so im guessing this is the "half nut" function to engage the power feed?
#4 is obvious, but just wanted to note it also has a zerk in the center altho its missing the ball and seems to be clogged up.
saddle.jpg (http://metalworkforums.com/attachment.php?attachmentid=374353&d=1532300999)
Thanks guys, Im not sure whether or not to wait until I have the VFD/Motor going so I can test the lathe out as is... or strip it down straight away and make sure all the internals are good before going any further...
Attached Images
http://metalworkforums.com/images/attach/jpg.gif saddle.jpg (http://metalworkforums.com/attachment.php?attachmentid=374353&d=1532300999) (158.2 KB)
http://metalworkforums.com/images/attach/jpg.gif zerk1.jpg (http://metalworkforums.com/attachment.php?attachmentid=374352&d=1532300488) (128.3 KB)
http://metalworkforums.com/images/attach/jpg.gif zerks.jpg (http://metalworkforums.com/attachment.php?attachmentid=374351&d=1532300479) (144.5 KB)
http://metalworkforums.com/images/attach/jpg.gif oilonly.jpg (http://metalworkforums.com/attachment.php?attachmentid=374350&d=1532300058) (127.4 KB)
http://metalworkforums.com/images/attach/jpg.gif oilers.jpg (http://metalworkforums.com/attachment.php?attachmentid=374344&d=1532299698) (193.4 KB)
http://metalworkforums.com/images/attach/jpg.gif fr_4413_size640.jpg (http://metalworkforums.com/attachment.php?attachmentid=374342&d=1532297796) (155.4 KB)
http://metalworkforums.com/images/attach/jpg.gif belt guard removed.jpg (http://metalworkforums.com/attachment.php?attachmentid=374343&d=1532297982) (89.4 KB)
http://metalworkforums.com/images/attach/jpg.gif nutal herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374345&d=1532299797) (191.8 KB)
http://metalworkforums.com/images/attach/jpg.gif Alfred Herbert.jpg (http://metalworkforums.com/attachment.php?attachmentid=374346&d=1532299816) (216.2 KB)
http://metalworkforums.com/images/attach/jpg.gif belt guard.jpg (http://metalworkforums.com/attachment.php?attachmentid=374347&d=1532299862) (93.5 KB)
http://metalworkforums.com/images/attach/jpg.gif Rear way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374348&d=1532299908) (132.4 KB)
http://metalworkforums.com/images/attach/jpg.gif Front way.jpg (http://metalworkforums.com/attachment.php?attachmentid=374349&d=1532299909) (152.8 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=202089&goto=newpost)