No time was wasted in the making of this video! You learned something, I learned something and I'm guess so did many of your viewers. Thanks Paul. Have a good weekend 👍
Paul, Now you can sleep better at night (or day) knowing you've covered all the bases and learned more about the machine in the process. Enjoyed the video, well done... Cheers....ATB....
Hi Bunk599, you will see it working in good time. Every session takes us nearer but it's not done until it's done. I've made the new saddle nut now - blimey that was a job - you will see the struggle in a vid before too long. Cheers
I don't think it was a waste of time as we learned a lot too and you saved us the time at some point in the future. Having the assurance that everything works as it should is worth a lot too
Hi Joseph, can't believe I've lived all these years and never heard of metering valves but there you go. It seems like the oil feed to the saddle lead screw and nut is not enough. I will give that some thought. Cheers Paul
The knowledge that it is working correctly makes it all worthwhile! I would have taken all the wadding out and washed it through with brake cleaner, which you probably did anyway! You also get to clean the gyb and knee slide rails. All good stuff! Phil
Hi Phil, if I had an ultrasonic cleaner I may have cleaned them all. It's on my Christmas list. Or I need to do a review on one, but unfortunately Vevor do not sell electrical in the UK else I would have asked for one from them. Cheers
@@HaxbyShed I bought a Vevor electric melting furnace a couple of years ago, it worked very well indeed…….once! And melted a crucible of copper in 35 minutes. Next time i turned it on it didn’t heat, element had failed. After a somewhat protracted exchange with Vevor they told me they had no spare elements for uk, but if I had one made they would pay the cost, which they did. It was made by a kiln manufacturer in the potteries area. I bought the kiln from china without realising it was a third party seller or whatever, but it all came out right in the end!
@@philhermetic Hi Phil, my next video is another Vevor review - my 3rd. I pointed out an error on the Vevor webpage about another product and they corrected it without delay. So I think your experience kind of reflects my positive experience. One correction does 'not a great supplier make' but the signs so far are encouraging that they do care about customers perhaps. Cheers
I seem to write the word perseverance in every one of your videos (in a positive way of course). Wow, what a complex design, that will clearly have been reflected in the list price of these machines when new, all good signs. My eagle has zero lubrication, it is best endeavours with an oil can where 90% goes everywhere but where you need it. Cheers, Jon
Well yes maybe Jon, but one I could have avoided if I had bought a manual (which maybe expensively available from lathes.co.uk). A viewer sent me a manual for the Mk1 but that does not have the oilers. Cheers
I have a Bijor oiling system on my old surface grinder. It’s called a “one shot” system because you only need to pull the handle once for the day. The correct oil viscosity is important. I use Vactra #2 way oil and that seems to work well in my climate controlled shop. As you stated the numbers on the valves correlate to the flow rate. My system goes from 0-4 or 0- 5. After my restoration where the system was completely drained, it took quite a few times pulling the handle over a few hours before I saw the fluid coming out. Looking forward to seeing it run and cut.
I never expected to see a manifold like that. It must have been a real quality built machine in its day. Interesting video, Paul. I'd try a thin oil, less resistance through the filters. Cheers Tony
Hi Tony, yes I think it is a real quality machine. I think even the castings are quality because they do not seem to flash-rust like the lathe and shaper - which are a bit of a shocker for it. Cheers
Hi Carl, I can usually find some way to do the heavy things on my own. The key is not to throw away anything that might ever come in useful later. 🤣 Cheers
Perseverance right on. I wonder why the designers put filtering on every outlet after oil has traveled through the manifold? I could see a filter at the inlet side before the manifold, but they are smarter than me. I felt like i was sharing your frustration. Right on👍🏻
Hi James, my thing is I don't finish until I'm done. When I was employed I always seemed to get the tough ones because I never gave up. No pain low gain. It's hard to make a vid that is frustrating but watchable - gotta keep smiling. Cheers
Well Job of old would be giving you a Thumbs from above, and so are we viewers. My LeBlond 17 (1941) has an self oil like this, but you actually have to pump it. Maybe the screens in the other one way fittings have debris? When you hand sucked the oil out, there were some condiments come out of the tank. Thx for sharing Paul.
Hi Bear, there might be a bit of muck in it but when I looked in the tank there was not much, and the first valve in line, screwed on the back of the pump, should have caught it and that seemed to flow ok. These systems are more complicated than I realised. Cheers Paul
Metering valves. I watched a young man from the UK once drill out all of the metering valves on his Bridgeport because he didn't know what they were for. 🤦🏼♂ I use #2 way oil in my Bridgeport. It's a bit thick, but seems to make it through all the hoses.
Hi Greg, looking it up #2 way oil seems to be ISO68 and #1 seems to be ISO32 equivalent. Yeh I need to be going a lot thinner than the stuff I used. Cheers Paul
Hi There Those little valve devices you are referring to are not really valves, they don't actually meter. they are probably better described as a Distribution Balance device, each one is restricted in accordance with its number. If you should resize one, it destroys the balance of all the others in the system. They are selected with reference to the amount of items requiring oil and how much for each item depending on load etc. The fact that the pump handle only travels slowly is good, as it means there is a prolonged flow to each item and the system has not been over sized, relevant to the pump output. I personally don't like them as they tend to defy logic, there are much better more accurate systems available, however they have a price to match, beware those Tecalemit parts are not cheap, in fact very expensive. As you may be wondering, it used to be part of my job to both design and modify these systems, usually taking much trial and error, making one off jobs very expensive. Also I agree with your comment on the viscosity of the oil you are using, even living in Australia I never used anything heavier than ISO 46 also beware that some of the additives in slideway oils can clog these devices so they need plenty of exorcise. keep up your great work it must be a great help to lots of people. cheers Ray
Spot on, akin to carefully crimping, or bashing copper tubes to reduce delivery, and surreptitiously hiding the precision dent under pipe clips. Not heard of slideway lubes clogging systems, is that the "Tackifiers"?. Its been a long time I've fitted this type, we use progressive types, Lumatic manufacturer, pumped via a Beka, or Willy Vogel unit. It can be hard work getting the fitters to pipe each measured element to the correct point, and not wasp elements around for ease, and not getting approval from engineering. Best Regards John.
Hi Ray, interesting comments sharing your experience thank you. I was going to use ISO 68 but now you have me thinking I need to buy some ISO32. Cheers Paul
Ah I can imagine that John, I'm sure getting the fitters to follow plans might be a problem. We have enough problems getting builders to follow plans rather than building things to their convenience. Human nature being what it is ...... Cheers
I just made a 5 TPI lead screw and a nut that was on a 16mm shaft. It did come out ok but it took a lot of passes. Well, a lot of spring passes actually..I’m interested in seeing how you approach yours.
Hi Jason, I finished making the 5/8 5tpi ACME tap today and I am starting on the new bronze nut having already cut a test nut in delrin. You will see in later videos. But to answer your question it took maybe 60 passes starting at 2 thou and ending up nearer 1 thou as I went deeper. There were 7 operations per pass so altogether over 400 individual operations: apply cut, start lathe, stop lathe, remove cut, reverse lathe, stop lathe, set lathe forward, and repeat x circa 60. I was going straight in with a 5tpi carbide insert into silver steel. On reflation now I'd have gone in at 14.5 degrees to make it easier on the tool, and my nerves. Cheers
Surprisingly comprehensive lubrication system, fairly sure the machine tool fitters hated piping that knee, though made a little easier with flexible nylon. My Bijur plunger pump on my Bridgeport mill creates 4 Bar (60 PSI) during operation ( I added the pressure guage), takes about 5 to 10 minutes to decay. ISO 220 is way to viscous, 68 or 32 are the norm. No doubt you've deducted that the metering units are to ensure adequate lubrication to each feature, and to be tolerant on sliding surfaces with excessive wear or free movement, and stop oil going to least path of resistance. Total metering delivery should be less than total pump output obviously. A more controlled system, is called "Progressive Delivery", whereby there is a manifold with spools, a tube from each is fed to each machine feature; each spool when shuttles across delivers its dose based on size, then having fully shuttled, the next spool delivers to its point, if there is a blockage, the spool cannot move, so no more lubrication, a sensor is fitted to detect this "Steady" state, in normal operation, the sensor sees a spool oscillating. Very interesting installation Paul, thanks for sharing.
Hi John, thanks. I understand the comments about my unmetered shaper oiler system now but that has clear tube so I can see the oil is nonetheless getting to all parts. Cheers
Hi Paul, I thought you would take the knee off eventually but I didnt think it was going to be for this. It looks quite a complicated lubrication system. After all that does it actually lubricate all the different points, especially the lead screw and nut which you are going to remake? I am missing your grandaughters at the start!! Have a great weekend!!
I did an Ajax turret mill a couple of years ago, about 25 branches, on 3 manifolds, I was told by experts to replace them since they can't be cleaned; the metering valves "proper" price was about £45 each+tax (go figure...). I cleaned them in my ultrasonic bath using solvents, then (white) vinegar and they work just fine. I replaced all the pipes and olives. I since learnt you can buy them much cheaper but with so many branches it would still be a small fortune. I only paid £350 for the mill, a 4 horsepower AJT4 weighing nearly two tons, the knee alone weighed 350Kg. You did a good job and it was worth it because you now know it's right, THAT makes it worthwhile.
ah yes ... an ultrasonic cleaner is on my list to get sometime. Machines can be cheap but for sure repairing them can be expensive, or just buying any tool new for that matter. Cheers
This rather reminds me of a black and decker chainsaw a friend gave me, i bought some proper chainsaw oil and the pump didnt pump, so i bought a new pump, then found out that B&D chainsaws use a much lighter oil than McCulloch do! Right oil and all was fine, could your oil be too thick even bearing in mind the weather? It does look remarkably gloopy for the purpose. On the bright side, you now know how to remove the knee.😉
HI Chris, yes I definitely need thinner oil for the lube system. In fact that's even more important now I realise that not enough oil gets to the saddle lead screw and nut. Cheers
Hi Selden, thank you. Yes I agree. Time spent building up knowledge and experience is seldom wasted and, speaking for myself, I can only visualise so much then I just have to try something to be practically grounded. Cheers
Might just be my iPad, but something seems to have happened to the audio midway through. But it sure didn’t keep me from watching and listening closely!
Oh that's good Russell. After the green glitch I had with the Static Converter video I was a bit concerned. That happened in the video editor export - never seen it before. Obviously some inter-galactic extra-terrestrial particle hit an electron in my PC and knocked it out of place. Cheers
Hi Richard a bit later I did a 3 part series on making a compound ACME tap for that job. I also bought one from China but it cut a bit slack so I finished with the one I made. Cheers
@@HaxbyShed Arh I see what you are aiming to do. I was thinking you would make a new shaft to match the nut. Which I think would have been the easier option.
Hi Michel, you are probably like me there is never a shortage of things to video. I don't event think about it - I just do stuff and the videos just come. The day I run out of ideas I'll quit. Cheers Paul
Hi I agree 68 or 32 would be right. I bought 5L of 220 for my mill gearbox because that's what it said on the machine plate but I've decided it's too thick for that even - which leaves me with excess to use up somewhere ..... so I hopefully shoved it in. I will use lighter oil when I refill it, but the story is not over yet because the tank in the knee seems to have a leak!! (casting pinhole??). Cheers
Not all that sure about that oil flow... That seems ridiculously restrictive... I know that it is not the best comparison, but my S22 mill can with a single pull of the handle crank out more oil than this one does in a hundred... And the mill is OEM configured by Schaublin, so it`s working as intended... A few pulls are needed after some time of sitting still to get the ways to bleed with oil on each end of the sections... It is a tad wasteful, but oil is better wasted than skimped out on... It`s possible that the oil is a bit too thick in your case, and that the machine requires regular pumps with less viscous oil, somewhat akin to hydraulic system lubed grinders where oil is constantly being fed at low pressure to the componentry and slideways... I`m not sure, but the amount of flow that was visible here seems ridiculously low... All the best! Steuss
Hi Steuss, there is much more flow to the saddle and table ways. The metering valves (flow restrictors) are 4 or 5 (high flow) whereas on the saddle screw and gears the valves are 0 or 1 (low flow). We'll maybe see later when we get to that stage. Cheers
@@HaxbyShed aaah, i have not really been taking a close look at which line goes where... That makes sense... The gears and screw mesh have pretty much 0 resistance to the flow at the outlet, whereas the table and the saddle being optimally set-up provide quite some resistance to the flow, not just by being tight toleranced, but by the oil having to push the already existing oil film out of it`s way... Phew, my lack of proper inspection and observation had me rattled... Warm regards!
No time was wasted in the making of this video! You learned something, I learned something and I'm guess so did many of your viewers. Thanks Paul. Have a good weekend 👍
Well, I learned something too! Thank you for sharing. Now I will be informed if I come across this kind of set up.
If I bang my head on the wall I learn that it hurts but I can't say I'm a wiser person for it. 😁 Happy days to you Matt.
Every day can be school day if you learn something new. Today was a school day for me :)
Glad you liked it Paul. Cheers
Interesting work Paul, not wasted time at all, we all learnt something from your trials and tribulations
Hi Jason, I'll be happy when jobs get more straight forward. Been a bit of battle recently. Cheers
Very good video Paul. No time wasted in my view because you learned something. Time spent in the acquisition of knowledge is never wasted.
So they say Carl but it was frustrating at the time. Cheers
Hi Paul. Gaining knowledge and experience, the building blocks of life. Thank you for a super interesting video. Good luck with the next steps. 👏👏👍😀
Hi Andrew, how did I get to this age without knowing about metering valves?? Something lacking in my education - I blame my parents. 🤣
@@HaxbyShed Well I hope you have passed this new found knowledge to your children and grandchildren! 🥴😂
Paul, Now you can sleep better at night (or day) knowing you've covered all the bases and learned more about the machine in the process. Enjoyed the video, well done...
Cheers....ATB....
Thanks Dean. 👍
Well I certainly did not know about metering valves and learned quite a bit as well. Thanks Paul!!
Hi Russell, I'd never seen them before but people have said the Bridgeports have them. That little grinder is a real quality machine. Cheers
I become very frustrated when I don't understand something...at least you worked your way past that phase. Anxious to see this machine at work.
Hi Bunk599, you will see it working in good time. Every session takes us nearer but it's not done until it's done. I've made the new saddle nut now - blimey that was a job - you will see the struggle in a vid before too long. Cheers
good job Paul!!! good lesson for all of us.
Thanks Graedon. 👍
I don't think it was a waste of time as we learned a lot too and you saved us the time at some point in the future. Having the assurance that everything works as it should is worth a lot too
Hi Joseph, can't believe I've lived all these years and never heard of metering valves but there you go. It seems like the oil feed to the saddle lead screw and nut is not enough. I will give that some thought. Cheers Paul
The knowledge that it is working correctly makes it all worthwhile! I would have taken all the wadding out and washed it through with brake cleaner, which you probably did anyway! You also get to clean the gyb and knee slide rails. All good stuff!
Phil
Hi Phil, if I had an ultrasonic cleaner I may have cleaned them all. It's on my Christmas list. Or I need to do a review on one, but unfortunately Vevor do not sell electrical in the UK else I would have asked for one from them. Cheers
@@HaxbyShed I bought a Vevor electric melting furnace a couple of years ago, it worked very well indeed…….once! And melted a crucible of copper in 35 minutes. Next time i turned it on it didn’t heat, element had failed. After a somewhat protracted exchange with Vevor they told me they had no spare elements for uk, but if I had one made they would pay the cost, which they did. It was made by a kiln manufacturer in the potteries area. I bought the kiln from china without realising it was a third party seller or whatever, but it all came out right in the end!
@@philhermetic Hi Phil, my next video is another Vevor review - my 3rd. I pointed out an error on the Vevor webpage about another product and they corrected it without delay. So I think your experience kind of reflects my positive experience. One correction does 'not a great supplier make' but the signs so far are encouraging that they do care about customers perhaps. Cheers
I seem to write the word perseverance in every one of your videos (in a positive way of course). Wow, what a complex design, that will clearly have been reflected in the list price of these machines when new, all good signs. My eagle has zero lubrication, it is best endeavours with an oil can where 90% goes everywhere but where you need it. Cheers, Jon
Hi Jon I am very impressed with the quality of this grinder - let's hope it grinds ok when we actually get to that 🤨
Yet another very informative lesson. Thanks Paul
Well yes maybe Jon, but one I could have avoided if I had bought a manual (which maybe expensively available from lathes.co.uk). A viewer sent me a manual for the Mk1 but that does not have the oilers. Cheers
A learning experience is never wasted time Paul. Certainly I knew what a metering valve was, but I have not seen ones like that.
Hi Bill, yes I suppose they must come in all shapes and sizes. Cheers
very good video Paul,,thanks for your time
Welcome as always Michel. Cheers
I have a Bijor oiling system on my old surface grinder. It’s called a “one shot” system because you only need to pull the handle once for the day. The correct oil viscosity is important. I use Vactra #2 way oil and that seems to work well in my climate controlled shop. As you stated the numbers on the valves correlate to the flow rate. My system goes from 0-4 or 0- 5. After my restoration where the system was completely drained, it took quite a few times pulling the handle over a few hours before I saw the fluid coming out. Looking forward to seeing it run and cut.
Hi John thanks for the info. Grinding operations are still a bit off yet, though now on the horizon at least. Cheers Paul
I never expected to see a manifold like that. It must have been a real quality built machine in its day. Interesting video, Paul. I'd try a thin oil, less resistance through the filters. Cheers Tony
Hi Tony, yes I think it is a real quality machine. I think even the castings are quality because they do not seem to flash-rust like the lathe and shaper - which are a bit of a shocker for it. Cheers
This is a two man job for me, I admire your work.
Hi Carl, I can usually find some way to do the heavy things on my own. The key is not to throw away anything that might ever come in useful later. 🤣 Cheers
Perseverance right on. I wonder why the designers put filtering on every outlet after oil has traveled through the manifold? I could see a filter at the inlet side before the manifold, but they are smarter than me. I felt like i was sharing your frustration. Right on👍🏻
Hi James, my thing is I don't finish until I'm done. When I was employed I always seemed to get the tough ones because I never gave up. No pain low gain. It's hard to make a vid that is frustrating but watchable - gotta keep smiling. Cheers
Well I certainly have learned something. Thanks for sharing this!
Well Clive I would rather have not learned the hard way 😒 Cheers Paul
Well Job of old would be giving you a Thumbs from above, and so are we viewers. My LeBlond 17 (1941) has an self oil like this, but you actually have to pump it. Maybe the screens in the other one way fittings have debris? When you hand sucked the oil out, there were some condiments come out of the tank. Thx for sharing Paul.
Hi Bear, there might be a bit of muck in it but when I looked in the tank there was not much, and the first valve in line, screwed on the back of the pump, should have caught it and that seemed to flow ok. These systems are more complicated than I realised. Cheers Paul
We followers know you will figure it out, and share your findings, Bear
Metering valves. I watched a young man from the UK once drill out all of the metering valves on his Bridgeport because he didn't know what they were for. 🤦🏼♂ I use #2 way oil in my Bridgeport. It's a bit thick, but seems to make it through all the hoses.
Hi Greg, looking it up #2 way oil seems to be ISO68 and #1 seems to be ISO32 equivalent. Yeh I need to be going a lot thinner than the stuff I used. Cheers Paul
@@HaxbyShed My K&T uses DTE Heavy Medium, which is also ISO 68 but it seems a lot thinner than the Hangstefers #2 way oil. 🤷🏼♂
Every day is a school day! Today though you were both student and teacher.
Hi Stephen, I never know what viewers know or how they will respond to a vid. I'm glad you liked it. Cheers
Thx for the vid.
Welcome Sir.
Hi There Those little valve devices you are referring to are not really valves, they don't actually meter. they are probably better described as a Distribution Balance device, each one is restricted in accordance with its number. If you should resize one, it destroys the balance of all the others in the system. They are selected with reference to the amount of items requiring oil and how much for each item depending on load etc. The fact that the pump handle only travels slowly is good, as it means there is a prolonged flow to each item and the system has not been over sized, relevant to the pump output. I personally don't like them as they tend to defy logic, there are much better more accurate systems available, however they have a price to match, beware those Tecalemit parts are not cheap, in fact very expensive.
As you may be wondering, it used to be part of my job to both design and modify these systems, usually taking much trial and error, making one off jobs very expensive. Also I agree with your comment on the viscosity of the oil you are using, even living in Australia I never used anything heavier than ISO 46 also beware that some of the additives in slideway oils can clog these devices so they need plenty of exorcise. keep up your great work it must be a great help to lots of people. cheers Ray
Spot on, akin to carefully crimping, or bashing copper tubes to reduce delivery, and surreptitiously hiding the precision dent under pipe clips. Not heard of slideway lubes clogging systems, is that the "Tackifiers"?. Its been a long time I've fitted this type, we use progressive types, Lumatic manufacturer, pumped via a Beka, or Willy Vogel unit. It can be hard work getting the fitters to pipe each measured element to the correct point, and not wasp elements around for ease, and not getting approval from engineering.
Best Regards John.
Hi Ray, interesting comments sharing your experience thank you. I was going to use ISO 68 but now you have me thinking I need to buy some ISO32. Cheers Paul
Ah I can imagine that John, I'm sure getting the fitters to follow plans might be a problem. We have enough problems getting builders to follow plans rather than building things to their convenience. Human nature being what it is ...... Cheers
I just made a 5 TPI lead screw and a nut that was on a 16mm shaft. It did come out ok but it took a lot of passes. Well, a lot of spring passes actually..I’m interested in seeing how you approach yours.
Hi Jason, I finished making the 5/8 5tpi ACME tap today and I am starting on the new bronze nut having already cut a test nut in delrin. You will see in later videos. But to answer your question it took maybe 60 passes starting at 2 thou and ending up nearer 1 thou as I went deeper. There were 7 operations per pass so altogether over 400 individual operations: apply cut, start lathe, stop lathe, remove cut, reverse lathe, stop lathe, set lathe forward, and repeat x circa 60. I was going straight in with a 5tpi carbide insert into silver steel. On reflation now I'd have gone in at 14.5 degrees to make it easier on the tool, and my nerves. Cheers
Surprisingly comprehensive lubrication system, fairly sure the machine tool fitters hated piping that knee, though made a little easier with flexible nylon.
My Bijur plunger pump on my Bridgeport mill creates 4 Bar (60 PSI) during operation ( I added the pressure guage), takes about 5 to 10 minutes to decay. ISO 220 is way to viscous, 68 or 32 are the norm.
No doubt you've deducted that the metering units are to ensure adequate lubrication to each feature, and to be tolerant on sliding surfaces with excessive wear or free movement, and stop oil going to least path of resistance. Total metering delivery should be less than total pump output obviously.
A more controlled system, is called "Progressive Delivery", whereby there is a manifold with spools, a tube from each is fed to each machine feature; each spool when shuttles across delivers its dose based on size, then having fully shuttled, the next spool delivers to its point, if there is a blockage, the spool cannot move, so no more lubrication, a sensor is fitted to detect this "Steady" state, in normal operation, the sensor sees a spool oscillating.
Very interesting installation Paul, thanks for sharing.
Hi John, thanks. I understand the comments about my unmetered shaper oiler system now but that has clear tube so I can see the oil is nonetheless getting to all parts. Cheers
They are shrededer valves similar to bridgeport mill oilers witch are numbered also. You can't clean, just replace even one larger numbered size.
Thank you 👍
Hi Paul, I thought you would take the knee off eventually but I didnt think it was going to be for this. It looks quite a complicated lubrication system.
After all that does it actually lubricate all the different points, especially the lead screw and nut which you are going to remake?
I am missing your grandaughters at the start!!
Have a great weekend!!
Hi David, I offered 'air time' to my granddaughters on the next vid bit it was like 'nah' - you have to catch them in the right mood. Cheers
did you price out those valves yet?? I did a video on these a couple of years ago. I got mine flowing on a bridgeport by less than desirable methods.
I did an Ajax turret mill a couple of years ago, about 25 branches, on 3 manifolds, I was told by experts to replace them since they can't be cleaned; the metering valves "proper" price was about £45 each+tax (go figure...). I cleaned them in my ultrasonic bath using solvents, then (white) vinegar and they work just fine. I replaced all the pipes and olives. I since learnt you can buy them much cheaper but with so many branches it would still be a small fortune. I only paid £350 for the mill, a 4 horsepower AJT4 weighing nearly two tons, the knee alone weighed 350Kg.
You did a good job and it was worth it because you now know it's right, THAT makes it worthwhile.
ah yes ... an ultrasonic cleaner is on my list to get sometime. Machines can be cheap but for sure repairing them can be expensive, or just buying any tool new for that matter. Cheers
Hi jagboy, I think just thin oil will help now I understand them. Cheers
Do you have a follower rest for your lathe?
Hi yes I have a Harrison travelling steady that bolts to the saddle. You will see it when I make the ACME tap. Cheers
This rather reminds me of a black and decker chainsaw a friend gave me, i bought some proper chainsaw oil and the pump didnt pump, so i bought a new pump, then found out that B&D chainsaws use a much lighter oil than McCulloch do! Right oil and all was fine, could your oil be too thick even bearing in mind the weather? It does look remarkably gloopy for the purpose.
On the bright side, you now know how to remove the knee.😉
HI Chris, yes I definitely need thinner oil for the lube system. In fact that's even more important now I realise that not enough oil gets to the saddle lead screw and nut. Cheers
Humans seek challenges, little is a waste of time.
Hi Selden, thank you. Yes I agree. Time spent building up knowledge and experience is seldom wasted and, speaking for myself, I can only visualise so much then I just have to try something to be practically grounded. Cheers
Might just be my iPad, but something seems to have happened to the audio midway through. But it sure didn’t keep me from watching and listening closely!
It was me. Never mind. I went back and watched it again with full audio. I loved it as always!
Oh that's good Russell. After the green glitch I had with the Static Converter video I was a bit concerned. That happened in the video editor export - never seen it before. Obviously some inter-galactic extra-terrestrial particle hit an electron in my PC and knocked it out of place. Cheers
way oil is what you should be using 220 too thick oil and yes those are all metering valves
Hi John, I agree 220 is far too thick. I'll use 68 or lighter. Cheers
ISO is to thick, versus pump spring tension, try thinner oil is my guess
Thanks Stewart 👍
Im sure you can buy a 5/8" 5 tpi Acme tap.
Hi Richard a bit later I did a 3 part series on making a compound ACME tap for that job. I also bought one from China but it cut a bit slack so I finished with the one I made. Cheers
@@HaxbyShed Arh I see what you are aiming to do. I was thinking you would make a new shaft to match the nut. Which I think would have been the easier option.
Should try something like diesel fuel. Some thing thin
Well Robert, I won't be refilling it with ISO220 that's for sure. Maybe 68 or 32. Cheers
If it was easy, you would need some new projects very soon. And we wouldn't have learned anything :)
Hi Michel, you are probably like me there is never a shortage of things to video. I don't event think about it - I just do stuff and the videos just come. The day I run out of ideas I'll quit. Cheers Paul
Did you discover what viscosity is recommended?
Your grade was high wasn't it.
Hi Steve, no not specifically but other people have recommended ISO68 or ISO32. Cheers
I put iso 68 in mine, no science it just seems the typical grade of oil for this sort of job
Hi I agree 68 or 32 would be right. I bought 5L of 220 for my mill gearbox because that's what it said on the machine plate but I've decided it's too thick for that even - which leaves me with excess to use up somewhere ..... so I hopefully shoved it in. I will use lighter oil when I refill it, but the story is not over yet because the tank in the knee seems to have a leak!! (casting pinhole??). Cheers
Not all that sure about that oil flow... That seems ridiculously restrictive... I know that it is not the best comparison, but my S22 mill can with a single pull of the handle crank out more oil than this one does in a hundred... And the mill is OEM configured by Schaublin, so it`s working as intended... A few pulls are needed after some time of sitting still to get the ways to bleed with oil on each end of the sections... It is a tad wasteful, but oil is better wasted than skimped out on... It`s possible that the oil is a bit too thick in your case, and that the machine requires regular pumps with less viscous oil, somewhat akin to hydraulic system lubed grinders where oil is constantly being fed at low pressure to the componentry and slideways... I`m not sure, but the amount of flow that was visible here seems ridiculously low...
All the best!
Steuss
Hi Steuss, there is much more flow to the saddle and table ways. The metering valves (flow restrictors) are 4 or 5 (high flow) whereas on the saddle screw and gears the valves are 0 or 1 (low flow). We'll maybe see later when we get to that stage. Cheers
@@HaxbyShed aaah, i have not really been taking a close look at which line goes where... That makes sense... The gears and screw mesh have pretty much 0 resistance to the flow at the outlet, whereas the table and the saddle being optimally set-up provide quite some resistance to the flow, not just by being tight toleranced, but by the oil having to push the already existing oil film out of it`s way... Phew, my lack of proper inspection and observation had me rattled...
Warm regards!
I am soo not going to your dentist!
Well Guy you would probably have to pay private anyway these days ..... but I could take it us as a side job maybe now I've the equipment. Cheers
What about the pump efficiency, the piston seal in it would have been worn by now and also that return spring. 🦚
Hiya, the spring and piston seal in the pump seem to be ok but I have had to change the sealing o-ring on the handle (you will see that later). Cheers