Hi everyone. I had a problem when I uploaded this film earlier. It just didn't seem to want to play. I hope I have solved the issue now. In the film we look at further dismantling of the gearbox. The intermediate and drive shafts come out, along with all their associated components. I hope you enjoy it.
Hi Carl, it played fine for me, i watched part yesterday and finished it this morning, so I guess it is all ok now! This is going to be the definitive video on stripping and rebuilding the Harrison mill. You explain every move clearly, and also explain and show the making of the tools for the job. Excellent work! Phil
Thanks for the comments and support Phil. I had my brother check if the first upload played. He said not, so I did it again. Thanks again for your kind comments.
When it first started and you put the jack on the top I was saying to put another jack on the bottom to keep the shaft from pulling out at an angle because the only stop was on the top. It worked for you so all good. Well done.
A successful and non damaging extraction, nice job on manufacturing the necessary special tools. Are they available to all Harrison mill owners, maybe start a tool club 🤔. Thanks for sharing.
Thank you, I am glad you enjoyed it. The tools were easy enough to make! The puller that I made last summer for the bearing locating bushes has proved pretty versatile. Thanks for your interest, your support and comments. Much appreciated.
Carl , let me congratulate you on producing two (Mill resto #12 & #13) thoroughly entertaining videos.Your step by step analysis of the problems and challenges at hand and subsequent countermeasures taken are to be commended. Keep the content coming and this channel will surely grow bigger and bigger. Take care 👍👍
That is extremely kind of you to say. What I hope to do is to translate the interest into viewing figures and subscribers. I'd like to make a success of this. Thank you very much for your support. It's hugely appreciated!
Great video. I think caution is a virtue when dealing with unobtainable castings. It's always better to draw bearings out under control than risk galling or even cracking a machined surface. Every nick is the first stage of a stress crack. I agree with you about the detent grub screw. What were they thinking? The Maximat has similar assemblies where they use a jamb nut. I think you might just have enough space to add one with a slightly longer grub screw. Best wishes, Dean.
Yes I agree with you 100% regarding caution. I am an engineer which means I like to have controlled conditions. Machines have reference surfaces and bored components that bear geometric and positional relationships to one another. Not only do these permit the machine to operate within it's normal parameters, but to the wise afford a series of datums enabling precise assembly and disassembly. As you rightly point out the body casting is irreplaceable. The same goes for other parts of the machine. Stress cracks do indeed propagate from nicks, dents and other artefacts of careless handling. Just look back in the series at the knee lead nut housing for proof of that. I don't want a single scratch on that machine that is attributable to any lack of care on my part. Absolutely agree regarding the detent grub screw. Why wasn't the detent incorporated into the handle on the outside of the unit? That's what they did with the smaller two selector handles. Jamb nut or Loctite on reassembly! Thanks so much for your comments and support, hugely appreciated! You must be glad to know that the method we discussed worked!
Hi Tony. Thanks for your support and comments. The gears seem to be in excellent condition. So far only one of the bearings has shown what I'd regard as excessive play. Having said that I think I will just replace them all. I've embarked on a pathway with this machine now and I may as well stay on it. At least then I will know it's right and any omissions will be my own. Thanks again for your support. It's much appreciated.
Hi everyone. I had a problem when I uploaded this film earlier. It just didn't seem to want to play. I hope I have solved the issue now. In the film we look at further dismantling of the gearbox. The intermediate and drive shafts come out, along with all their associated components. I hope you enjoy it.
Hi Carl, it played fine for me, i watched part yesterday and finished it this morning, so I guess it is all ok now!
This is going to be the definitive video on stripping and rebuilding the Harrison mill. You explain every move clearly, and also explain and show the making of the tools for the job. Excellent work!
Phil
Thanks for the comments and support Phil. I had my brother check if the first upload played. He said not, so I did it again. Thanks again for your kind comments.
When it first started and you put the jack on the top I was saying to put another jack on the bottom to keep the shaft from pulling out at an angle because the only stop was on the top. It worked for you so all good. Well done.
Thanks for your support and comments my friend both are much appreciated.
Getting closer. Good job brother.
Thank you Cain, much appreciated.
A successful and non damaging extraction, nice job on manufacturing the necessary special tools.
Are they available to all Harrison mill owners, maybe start a tool club 🤔.
Thanks for sharing.
Thank you, I am glad you enjoyed it. The tools were easy enough to make! The puller that I made last summer for the bearing locating bushes has proved pretty versatile. Thanks for your interest, your support and comments. Much appreciated.
Carl , let me congratulate you on producing two (Mill resto #12 & #13) thoroughly entertaining videos.Your step by step analysis of the problems and challenges at hand and subsequent countermeasures taken are to be commended. Keep the content coming and this channel will surely grow bigger and bigger. Take care 👍👍
Thank you very much for your support, I am really pleased you are enjoying things and I'm very glad to have you share time with me in the workshop!
Yes there are bigger channels but yours is generally more interesting. With yours and Paul at Haxby Shed you really have this machine covered.
That is extremely kind of you to say. What I hope to do is to translate the interest into viewing figures and subscribers. I'd like to make a success of this. Thank you very much for your support. It's hugely appreciated!
good job carl
Thank you very much for your continued support it is much appreciated!
Great video. I think caution is a virtue when dealing with unobtainable castings. It's always better to draw bearings out under control than risk galling or even cracking a machined surface. Every nick is the first stage of a stress crack.
I agree with you about the detent grub screw. What were they thinking? The Maximat has similar assemblies where they use a jamb nut. I think you might just have enough space to add one with a slightly longer grub screw.
Best wishes, Dean.
Yes I agree with you 100% regarding caution. I am an engineer which means I like to have controlled conditions. Machines have reference surfaces and bored components that bear geometric and positional relationships to one another. Not only do these permit the machine to operate within it's normal parameters, but to the wise afford a series of datums enabling precise assembly and disassembly.
As you rightly point out the body casting is irreplaceable. The same goes for other parts of the machine. Stress cracks do indeed propagate from nicks, dents and other artefacts of careless handling. Just look back in the series at the knee lead nut housing for proof of that. I don't want a single scratch on that machine that is attributable to any lack of care on my part.
Absolutely agree regarding the detent grub screw. Why wasn't the detent incorporated into the handle on the outside of the unit? That's what they did with the smaller two selector handles. Jamb nut or Loctite on reassembly! Thanks so much for your comments and support, hugely appreciated! You must be glad to know that the method we discussed worked!
Well I watched most of this earlier. But had to get back to work. Then it was gone.
Glad you got to see it.
Great work Carl......What sort of conditions were the bearings in? Most of the gear surfaces look OK from what I can see, so are they OK?
Hi Tony. Thanks for your support and comments. The gears seem to be in excellent condition. So far only one of the bearings has shown what I'd regard as excessive play. Having said that I think I will just replace them all. I've embarked on a pathway with this machine now and I may as well stay on it. At least then I will know it's right and any omissions will be my own. Thanks again for your support. It's much appreciated.
At 40:00 mins in wouldn't it have been easier to drive the bearing into the gearbox, rather than pulling it out?
Yes, it would! Thanks for your support and comments, I really do appreciate them.