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Harrison L5 Lathe Restoration

Laytonnz

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#1
Well ive brought a harrison l5 lathe from a high school 400km later and 2 broken strops its home!
While im geting my workshop wired up im giving it s clean up and a general tidy up

Im in need of a manual and i can't seem to find one anywhere i believe its a 1959 model the last of the threaded spindle nose if anybody could point me in the right direction or supply a manual it would be much appreciated!
Will try upload a pic shortly!
If i have uploaded this in the wrong section i appoligise. .
Thanks

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roverguy

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#2
Welcome to the crazy insane world of L5 ownership !!!!

The manual is easy to find, the yahoo Harrison group has it for download I believe . The manual is very basic

Looks like you have the small spindle version, same as mine .
Did you get any steadies with it ? I had to buy a fixed steady, cost me a small fortune

There is a detailed description of a L5 rebuild on a site somewhere
http://madmodder.net/index.php?topic=7321.50

BTW I would be surprised if yours has a quiet clutch
here

Mike

harr.jpg
 
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Laytonnz

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#4
Welcome to the crazy insane world of L5 ownership !!!!

The manual is easy to find, the yahoo Harrison group has it for download I believe . The manual is very basic

Looks like you have the small spindle version, same as mine .
Did you get any steadies with it ? I had to buy a fixed steady, cost me a small fortune

There is a detailed description of a L5 rebuild on a site somewhere
http://madmodder.net/index.php?topic=7321.50

BTW I would be surprised if yours has a quiet clutch
here

Mike

View attachment 124301
I tried joining the yahoo group for the manual and stuff but i find the site so hard to navigate and i cant seem to join up so gave up on it!

You dont happen to have a PDF available?

No unfortunately no steadys im activity looking for them and a 127T change gear... like everybody else!

Haha yeah its horrendous colors i will probably paint it because it really bugs me!
 

roverguy

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#5
I like the Kermit the frog colours !

I may have a PDF manual somewhere . Will take me a while to find it .
 

roverguy

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#6
I like the Kermit the frog colours !

I may have a PDF manual somewhere . Will take me a while to find it . On my L5 the clutch handle has a nasty habit of jumping out of its seat and the spindle turns when you dont want it to.......be careful
 

hermetic

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#9
Glad to help, I have a Colchester lathe and a Covmac lathe, but I do have a Harrison H/V Mill. superbly built machines.
 

Laytonnz

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#10
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I havnt been able to view the manual yet as my tablet wont view that pdf for some reason will print off at work when i get a chance.

Are these fittings standard on this model and what greese and or oil are you using? See somebody had a good chuck vs top slide battle..
 

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Micke S

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#12
Are these fittings standard on this model and what greese and or oil are you using? See somebody had a good chuck vs top slide battle..
You never want to use grease on ways or other parts on a lathe that are exposed to chips and dust. There is special oil for the ways, slideway oil, which is relatively thin and non-sticky so it is easy to clean off. The oil has about the same feeling as oil for air tools.

In case an oil like a straight SAE 30 engine oil was used it would be difficult to remove fine dust like from cast iron. It is also good to cover the ways and put some paper behind the work piece in the chuck when turning cast iron.

Grease is only used for protected parts like e.g. closed gears and the backside of a chuck scroll wheel.
 
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Laytonnz

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#13
You never want to use grease on ways or other parts on a lathe that are exposed to chips and dust. There is special oil for the ways, slideway oil, which is relatively thin and non-sticky so it is easy to clean off. The oil has about the same feeling as oil for air tools.

In case an oil like a straight SAE 30 engine oil was used it would be difficult to remove fine dust like from cast iron. It is also good to cover the ways and put some paper behind the work piece in the chuck when turning cast iron.

Grease is only used for protected parts like e.g. closed gears and the backside of a chuck scroll wheel.
Ah yeah i know not to use grease on the ways! , but thanks anyways i was more inquireing about the threading gear box should they be oiled or greased?
I take it i need to make a high preasure oil gun for the fittings on the ways? Have any idea if theyre standard? Could i replace with cup oilers?
 

Micke S

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#14
If it is open gears that are not running in an oil bath it should be grease or an oil that sticks to the gears. I use Shell Gadus, which is for lubricating of wire ropes and open gears.

You can wipe the ways with a clean and oiled rag.
 

hermetic

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#15
thanks for the kind words chaps! the scan is from the Harrison Yahoo group, as I am a member,
Phil
 

FOMOGO

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#16
Aside from a little student abuse looks like a nice machine. Should look great once you get her cleaned up and painted. Mike
 

Laytonnz

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#17
Aside from a little student abuse looks like a nice machine. Should look great once you get her cleaned up and painted. Mike

Everything seems fairly good on the machine the cam lock on the tail stock is missing, thats abit anoying if anybody has some specs i can get a mate to machine one up.. all the slides are nice and smooth no bad dings wich is nice for the last 10 years its been used to just hold brass pieces and tap a thread with the tail stock because of all the health and safety stuff all school training lathes must have a chuck guard i was painting the exterior of the metal work room and seen it in a corner looking sad and neglected coverd in saw dust so i enquired about it the metal teacher just wanted the space for the brand new one they brought (cheap Chinese one) he told the principal it was dangerous and bent, so i snaped it up for $500.
 

Laytonnz

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#19
Well I have finished my other projects and decided it was time to start this one.. after tearing half the lathe down I'm starting to question weather it's worth my time what do you guys think?
This is my finding so far
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roverguy

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#20
You need to provide more information. Are the bed ways worn ? Hard to tell from a photo . The swarth on the carriage just needs a clean up, give it a good soaking in kero . If the bed is not worn then you have a great lathe . Mike
 

Silverbullet

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#22
I'd say soak it too. Clean her up real good re oil everything . After the paint job of course, what color are YA gonna pick ? SAFTEY orange with reflected strips. Or a good pine green even gray blue tinted . She looks in good shape for a school machine. Did YA score any other chucks or collets. The Orange is a jab for its multi colors. I've seen some loud colors on some tho. Good luck on the LATHE YA know you practically stole it for that money. Keep us in the loop on progress and or problems. Thanks
 

4gsr

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#23
The ways don't look too bad. They are worn but I've seen worse and have used lathes with worn ways, too. Didn't stop me. Like Silverbullet said, clean her up and giver her a good bath in the right oils and put her to work! Replace those grease zerks with gits oil cups. McMaster-Carr has them provided they will ship to Canada. If not, someone there should have them. Ken
 

Laytonnz

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#24
You need to provide more information. Are the bed ways worn ? Hard to tell from a photo . The swarth on the carriage just needs a clean up, give it a good soaking in kero . If the bed is not worn then you have a great lathe . Mike
Sorry forgot you guys can't read minds haha I've done some very basic tests with the limited equipment I have on hand and torn into the gear box to assess the damage will post results soon!

I want a general picture of how much I'll need to put into the old girl before I get top far into the clean up and fix up process I've found a few interesting fixing thus far hopefully no more supprizes.
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Tell me if i get abit picture heavy just hard getting a decent shot of the damaged parts
Looks like and feels like ripples in the dove tales must of happend when somebody hit the chuck with the compound slide...? could this be re scraped?
Thanks for replys also!
 

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Laytonnz

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#25
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Im getting 0.04mm difference front to back measureing this way, correct me if im doing these things wrong im just after a quick and dirty measurements im not looking to make parts for nasa!

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Im getting around 0.07mm difference here with the gib? Plates firm and can push the carrage from one end almost to the other with only minimum binding towards the tail stock end

Trying to lift the carrage im getting 0.12mm
When pushing down i get 0.04mm
Pushing right 0.04mm
Pushing left 0.11mm
Im not being gentle about it eather

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Im thinking to fix this i could machine down the damaged area and sleve the shaft?
Or maybe when i make a new bush i could make it to suit the new diameter shaft? ideas??

The cross slide on the other hand.. now that seems to of had a hideing im unsure how im going to approach that one its seen some better days ill try post some pictures shortly seems exeptoinally worn or something cant quite put my finger on the problem yet
 
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Laytonnz

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#26
I'd say soak it too. Clean her up real good re oil everything . After the paint job of course, what color are YA gonna pick ? SAFTEY orange with reflected strips. Or a good pine green even gray blue tinted . She looks in good shape for a school machine. Did YA score any other chucks or collets. The Orange is a jab for its multi colors. I've seen some loud colors on some tho. Good luck on the LATHE YA know you practically stole it for that money. Keep us in the loop on progress and or problems. Thanks
I got a few things a face plate, a catch plate a box of HHS tools some large carbide tools a small 4 jaw chuck another face plate from i dont know what nothing super exciteing
 

roverguy

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#27
A few comments. The bed looks OK to me , that tiny bit of wear is nothing to worry about .
The cross slide looks a bit the worse for wear but again , it is probably useable as it is . The cross slide nut will be worn but thats not a disaster either .
You might ask G&M tools for a new shaft , they are in the UK, they bought the old Harrison works spares , they have bits on EBAY . . There is a guy in NZ who has L5 parts on EBAY . Have you seen this kiwi guy with L5 bits ?

http://www.ebay.com.au/itm/Lathe-Ha...710095?hash=item1c6ed7a34f:g:OrkAAOSw9IpXzkNn

I bought a L5 fixed steady from him . One thing that annoys me about the early L5's is the small bore of the spindle, it is only 7/8" .

The later L5's from the mid 1950's on had a hardened bed .
 
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Laytonnz

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#28
A few comments. The bed looks OK to me , that tiny bit of wear is nothing to worry about .
The cross slide looks a bit the worse for wear but again , it is probably useable as it is . The cross slide nut will be worn but thats not a disaster either .
You might ask G&M tools for a new shaft , they are in the UK, they bought the old Harrison works spares , they have bits on EBAY . . There is a guy in NZ who has L5 parts on EBAY . Have you seen this kiwi guy with L5 bits ?

http://www.ebay.com.au/itm/Lathe-Ha...710095?hash=item1c6ed7a34f:g:OrkAAOSw9IpXzkNn

I bought a L5 fixed steady from him . One thing that annoys me about the early L5's is the small bore of the spindle, it is only 7/8" .

The later L5's from the mid 1950's on had a hardened bed .
Thanks I've actually brought several things from him before the quality or Condition seems to vary massively but I've asked him how much for the splined shaft

I'm pretty sure my lathe is from late 1950 and it's an un hardened bed? Wasn't it a factory option?

What is the gib supposed to look like ? Does anybody have a picture?
I feel as if mines been butcherd

Thanks
 
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roverguy

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#29
The lathes uk website . Tony writes that the hardened bed was introduced on all the L5's in the mid 1950's . Can you run a file over a edge to check it ?
You might have to learn scraping ! I'm really not a expert in any way . I think the gib is tapered - Hmm might be tricky to repair that .
The L5 I have came off a ship , it had a weird DC motor on it.

BTW a guy on ebay uk had a L5 top slide
 

roverguy

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#30
The lathes uk website . Tony writes that the hardened bed was introduced on all the L5's in the mid 1950's . Can you run a file over a edge to check it ?
You might have to learn scraping ! I'm really not a expert in any way . I think the gib is tapered - Hmm might be tricky to repair that .
The L5 I have came off a ship , it had a weird DC motor on it.

BTW a guy on ebay uk had a L5 top slide
 
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