Thank you for your restoration videos Barry. This is exactly what I am working on in my Selectamatic David Brown tractor, after the Spool valve seized up from sitting unused with the lift arms down. The Spool valve was stuck up with milky oil that rusted it in place. I'll be taking it apart to clean and resemble it properly.
Another great vid Barry, you make every one a learning aid, good of you to tell the non-engineers about the lead in on a parallel reamer, hope you have fully recovered from covid.
Hi Ken, not quite fully recovered but around the 80% mark, still get out of breath very quickly and the fatigue is rediculous, the number of times we've come back from simple things, even shopping at Asda and you fall asleep on the sofa. However many thanks for the kind words and your support very much appreciated Barry
Mega useful video this one sir, thank you. I remember reading and re-reading the manual on how to do this a few months ago before i found your channel and had a stomach churning and head scratching reluctance to even attempt this job. However I cleaned up my control mechanism today so will be setting up my clearances tomorrow whilst watching this again with no worries about the double Dutch from the manual. I noticed you put on a paper gasket between the axle and control mechanism, i took off an aluminium one, checked the book, part number 926386, it's common to all models. The one on the left hand side behind the hydraulic cylinder however was a yellow plastic one. Checked with DB Parts and they said this is standard as i ordered both. Just for your interest. All the very best.
Cheers Mark, yes the one that came off was aluminium, sure it was superseded with a paper one, I think the idea of the aluminium one was to cut down on any movement due to the loading of the right hand bracket and rock shaft, as long as you don't put a thick paper one in it's not going to move very far, many thanks Barry
@manfromthemist1958 Thanks for that, my brain has been trying to understand the reason behind the different materials. The aluminium one under the top link sensing unit presumably for that same reason, because of the loads and weight involved. Would you have any thoughts on a sealant if any for the aluminium gasket between the axle and the control mechanism? I was thinking either 515 because it's "metal flanges" or maybe nothing because aluminium is soft. So far I've been trying the Wellseal on the axle, no drips yet. Cheers.
Hi Mark I use both of those, your right the aluminium would probably seal on it's own, but it's such a job to get to it again if it leaks, so belt and brases for me, I did the rockshaft bracket with 515 and sealed all the axle up with wellseal both are brilliant products. just keep everything clean and grease free before assembly. many thanks Barry
Fantastic illustration of the valve block setup, thank you Barry, seeing this as opposed to just looking at the manuals/descriptions is so much more useful, thanks for talking through to this who aren't from an engineering background. It is worth searching the DB Forum for service manuals, there is someone kindly hosting copies of all the original service manuals, which are far more in depth than the I&T manual. Regards, Martin
Thanks very much mate , I could not get my head round setting this at all by reading that book , I,ve just watched your video & got it in one , it also shows up what is quite possibly wrong with my linkage lowering speed ( incredibly slow , hot or cold oil ) , the shim pack under the plate needs re - appraising as you have clearly done , as , not only may the spool valve travel setting on it,s locknuts be just wrong , the clearance between the actuator lever & the end of the spool valve is just as critical . Many Thanks mate . You,re the master at this , you lead the pack .
Hi Adam, on the mend, as I say to Ken tiredness is unreal. The silliest things make it hard to breath. but hopefully another week and we'll be there. many thanks for your support Barry
this is the best video ever seen on the hydraulics of a selectamatic. adjusting the spoolvalve should interest any hobbyist. but how important is the tcu valve?when you don't use the tcu?
Hi Jan, I would think it's very important, even if not used, My thought train would be if the valve is setup correctly 100% it's easier to diagnose problems when they occur, if you only set the bits you use, the bits we don't set may have an adverse effect on the remaining parts of the valve, and it's only a two minute job, Self satisfaction should also be considered, if it's worth doing do it right. and it's fun. Cheers Jan Barry
Good video Barry, see you got a pair of bent circlip pliers. You will get a few mentions as the man from the mist in an up and coming video of mine. 😀M
Watching the master class on setting up valve chest(you). Around 13.30min you tap the outside dowel home. Did you notice the open hole in front of it? It's for a detend onto the cross shaft. Bearing spring and dowel to hold it all in. It is in the manual but you have to look close to see it. M😀
Hi Marshall, does yours have a dowel to keep everything in place? the shaft keep everything in place on mine, you place the spring and ball down the hole and put the shaft in with the flat down and rotate to easy entery, if you have a look at #6 rebuilding the hydraulic selector at 11-30mins you see me put the bits together cheers Barry
@@manfromthemist1958 Sent you an email with photo. Shaft has to line up with roll pin in plastic forks.I would think you will have metal forks on your model. It has a screwdriver slot in one end that lets you turn in place. M
Hi Jose, it already exist if you go to Path of Discovery channel, shane Bush watch his latest video he tells you where to obtain just such a stencil, or if you prefer go to my community tab and have a look at the gauges, I just printed off. many thanks Barry
Hi David, I believe you can pick them up from ebay from time to time, there not difficult to make just fiddly and very time consuming, as with all gauges the work is in the setting out, but with minimal tools you can easly make one. many thanks for your support Barry
Thank you for these videos. I am currently rebuilding my valve chest for an 885 in Alabama, U.S. I struggled for the last few months until I found your videos. One question, my lowering valve needle is curved instead of pointed, almost like it was crushed in. Is this normal? I cannot find pictures anywhere and the book is hard to see the end of needle. Thanks again.
Hi Jason, the end of the needle valve should be straight, could you please take a picture of it and send to my email address, which you'll find in the about section of my home page many thanks Barry
Hi joran, my honest advice to you would be, go on FB search David Brown Tractor group and join most of the manuals you'll need are there and are free, ( the real manuals) I bought my I and T manual(haynes type) from agriline in the UK it has it's limitations lets know how you get on many thanks for your support Barry
@@55drakula Hi George, check your fuel supply, filters, pump pressure, does it have any fuel leaks? compression on all four cylinders, electrical connection to starter and to earth if it's sounding slow at turning, heater glow plug if it's got one. without hearing it trying to start it could be some or all of the above, why not take a video of you starting it and post it to your channel so we can see and hear it.it may help. many thanks Barry
Thank you for your restoration videos Barry. This is exactly what I am working on in my Selectamatic David Brown tractor, after the Spool valve seized up from sitting unused with the lift arms down. The Spool valve was stuck up with milky oil that rusted it in place. I'll be taking it apart to clean and resemble it properly.
Hi Erik, I'm so pleased they are of use, it makes the whole thing worth while.
many thanks
Barry
Another great vid Barry, you make every one a learning aid, good of you to tell the non-engineers about the lead in on a parallel reamer, hope you have fully recovered from covid.
Hi Ken, not quite fully recovered but around the 80% mark, still get out of breath very quickly and the fatigue is rediculous, the number of times we've come back from simple things, even shopping at Asda and you fall asleep on the sofa.
However many thanks for the kind words and your support very much appreciated
Barry
Mega useful video this one sir, thank you. I remember reading and re-reading the manual on how to do this a few months ago before i found your channel and had a stomach churning and head scratching reluctance to even attempt this job.
However I cleaned up my control mechanism today so will be setting up my clearances tomorrow whilst watching this again with no worries about the double Dutch from the manual.
I noticed you put on a paper gasket between the axle and control mechanism, i took off an aluminium one, checked the book, part number 926386, it's common to all models.
The one on the left hand side behind the hydraulic cylinder however was a yellow plastic one.
Checked with DB Parts and they said this is standard as i ordered both.
Just for your interest.
All the very best.
Cheers Mark, yes the one that came off was aluminium, sure it was superseded with a paper one, I think the idea of the aluminium one was to cut down on any movement due to the loading of the right hand bracket and rock shaft,
as long as you don't put a thick paper one in it's not going to move very far,
many thanks
Barry
@manfromthemist1958 Thanks for that, my brain has been trying to understand the reason behind the different materials.
The aluminium one under the top link sensing unit presumably for that same reason, because of the loads and weight involved.
Would you have any thoughts on a sealant if any for the aluminium gasket between the axle and the control mechanism? I was thinking either 515 because it's "metal flanges" or maybe nothing because aluminium is soft.
So far I've been trying the Wellseal on the axle, no drips yet.
Cheers.
Hi Mark I use both of those, your right the aluminium would probably seal on it's own, but it's such a job to get to it again if it leaks, so belt and brases for me, I did the rockshaft bracket with 515 and sealed all the axle up with wellseal both are brilliant products.
just keep everything clean and grease free before assembly.
many thanks
Barry
Fantastic illustration of the valve block setup, thank you Barry, seeing this as opposed to just looking at the manuals/descriptions is so much more useful, thanks for talking through to this who aren't from an engineering background.
It is worth searching the DB Forum for service manuals, there is someone kindly hosting copies of all the original service manuals, which are far more in depth than the I&T manual.
Regards, Martin
They are also referred to as workshop manuals
Hi Martin, yes there's loads of good free info out there with the help of like minded people.
many thanks for your support
Barry
Great work! Thanks for the details on making the tool. Especially the measurements.
Hi Shane, many thanks for your support, keep up the good work with your video's
Barry
Thanks very much mate , I could not get my head round setting this at all by reading that book , I,ve just watched your video & got it in one , it also shows up what is quite possibly wrong with my linkage lowering speed ( incredibly slow , hot or cold oil ) , the shim pack under the plate needs re - appraising as you have clearly done , as , not only may the spool valve travel setting on it,s locknuts be just wrong , the clearance between the actuator lever & the end of the spool valve is just as critical . Many Thanks mate . You,re the master at this , you lead the pack .
Hi Phillip many thanks for your kind words, I'm only to pleased to have helped you.
many thanks for your continued support
Barry
Thanks Barry another informative video hope you and your wife fully recovered from covid
Hi Adam, on the mend, as I say to Ken tiredness is unreal. The silliest things make it hard to breath. but hopefully another week and we'll be there.
many thanks for your support
Barry
this is the best video ever seen on the hydraulics of a selectamatic. adjusting the spoolvalve should interest any hobbyist. but how important is the tcu valve?when you don't use the tcu?
Hi Jan, I would think it's very important, even if not used, My thought train would be if the valve is setup correctly 100% it's easier to diagnose problems when they occur, if you only set the bits you use, the bits we don't set may have an adverse effect on the remaining parts of the valve, and it's only a two minute job, Self satisfaction should also be considered, if it's worth doing do it right. and it's fun.
Cheers Jan
Barry
Good video Barry, see you got a pair of bent circlip pliers. You will get a few mentions as the man from the mist in an up and coming video of mine. 😀M
Thanks Marshall that really kind of you
Thanks for your support very much appreciated
Barry
Gracias por su video , muy instructivo
Hola Hugo, de nada y muchas gracias por tus amables palabras.
Feliz año nuevo para 2024
barry
Watching the master class on setting up valve chest(you). Around 13.30min you tap the outside dowel home. Did you notice the open hole in front of it? It's for a detend onto the cross shaft. Bearing spring and dowel to hold it all in. It is in the manual but you have to look close to see it. M😀
Hi Marshall, does yours have a dowel to keep everything in place? the shaft keep everything in place on mine, you place the spring and ball down the hole and put the shaft in with the flat down and rotate to easy entery, if you have a look at
#6 rebuilding the hydraulic selector at 11-30mins you see me put the bits together
cheers
Barry
@@manfromthemist1958 Sent you an email with photo. Shaft has to line up with roll pin in plastic forks.I would think you will have metal forks on your model. It has a screwdriver slot in one end that lets you turn in place. M
An original DB setting gauge like the one you made sold on eBay for £370 a couple of weeks back!!!
OMG! I might start making them from a little heavier gauge.
Cheers David
Can You do a pdf a4 stencil with the gauge to print and than pass it to a peace of metal?
Hi Jose, it already exist if you go to Path of Discovery channel, shane Bush watch his latest video he tells you where to obtain just such a stencil, or if you prefer go to my community tab and have a look at the gauges, I just printed off.
many thanks
Barry
@@manfromthemist1958 done!
Barry any chance of manufacturing one of those gauges for sale ?
Hi David, I believe you can pick them up from ebay from time to time, there not difficult to make just fiddly and very time consuming, as with all gauges the work is in the setting out, but with minimal tools you can easly make one.
many thanks for your support
Barry
Thank you for these videos. I am currently rebuilding my valve chest for an 885 in Alabama, U.S. I struggled for the last few months until I found your videos. One question, my lowering valve needle is curved instead of pointed, almost like it was crushed in. Is this normal? I cannot find pictures anywhere and the book is hard to see the end of needle. Thanks again.
Hi Jason, the end of the needle valve should be straight, could you please take a picture of it and send to my email address, which you'll find in the about section of my home page
many thanks
Barry
hi where do you buy the manual ?
Hi joran, my honest advice to you would be, go on FB search David Brown Tractor group and join most of the manuals you'll need are there and are free, ( the real manuals)
I bought my I and T manual(haynes type) from agriline in the UK it has it's limitations
lets know how you get on
many thanks for your support
Barry
@@manfromthemist1958 hi barry thanks for the info
Hi, you can help me?
Hi George31, what would you like help with?
@@manfromthemist1958 I have a david brown 1290 and it starts very hard, what should I check?
@@55drakula Hi George, check your fuel supply, filters, pump pressure, does it have any fuel leaks? compression on all four cylinders, electrical connection to starter and to earth if it's sounding slow at turning, heater glow plug if it's got one. without hearing it trying to start it could be some or all of the above, why not take a video of you starting it and post it to your channel so we can see and hear it.it may help.
many thanks
Barry
@@manfromthemist1958 Hi ok, I will make a video with him when I have time, thank you very much
Intricate bit of work.
many thanks Colman