I can appreciate how much time it takes to look for a replacement for that threaded connector, and when it was unavailable, take the time to find TWO connectors that accomplish the same thread reduction.
That first compressor would be useful for airbrushing paint. It is amazing how much water was inside of it. I would like to see you build a pulley and gear press someday.
Hi. I frequently watch your videos because I am doing as a hobby more ore less the same as you - repairing things. And it is amazing how often these things are faulty and thrown away just because an inexpensive part like a ball bearing or a spring or a capacitor or a diode is broken. I think that our societies (I live in Switzerland but I came from the Aachen region) is kind of distorted. Those who would be able to repair these things don't do it because they feel that their time is too precious and well paied that it is not worth it and they prefer selling new items - usually of worse quality. But now just a tip for you for fast replacing a bearing without having to hammer it home: Put the rotor of the motor in the freezer for 1h and - short before you want to mate them - the bearing on the top of a 100W incandescent bulb for 5 minutes or so. Then span the cold motor with the shaft up in the vise and grab the hot bearing with a leather glove and put it on the shaft. I have done that so often and it always works fine. Most of the time the bearing just falls in position, but it is wise to have an aluminum or brass tube or nut with an inner diameter slightly bigger than the shaft but not larger than the inner race of the bearing at hand so that you can tap the bearing in place if the fitting is still a bit tight. But I never needed much force and its a fast and safe method too.. Best regards Adalbert
You've got to be careful aiming an air gun at your hand like that, the risk is that a sharp enough burst of air can break the skin and blow an air bubble into your bloodstream. It might seem an unlikely scenario, but the risk is more than zero and if it does happen it can be fatal. I would hate for anything to happen to you, I really enjoy your videos, thanks and stay safe❤
Concur, spotted that (only just seen this video). Although the people who work on these machines seem to have skin made of steel, it's still not an advisable way to test for compressed air and there could have been shards of metal or anything else in the lines, gun etc.
That looked like an air injection injury waiting to happen. I never considered the possibility of contaminants being pushed in with the air, though that seems like a real possibility. High pressure injection injuries can occur with all sorts of fluids. en.m.wikipedia.org/wiki/High_pressure_injection_injury
I have rebuilt a lot of chainsaw engines, and I use a heat gun to heat to expand the inner race of the bearing to install the bearings on the crankshaft. I use a hand held pyrometer, to measure the temperature, and keep the applied heat below 350F. You could also use dry ice, to cool the shaft, or put the shaft in the freezer. Normally, the bearings will just slide right into place.
I work at Chiron, we actually only stopped making compressors in the 2000s. Most of our big industrial facilities are still powered by huge screw type compressors of our own :)
Dampers absorb mechanical vibration. Dampeners make things wet. The 1/8bsp fitting has already been covered, but for reference, 1/8bsp is 55° thread form and takes its name from the pipe bore size so the thread diameter is a fair bit bigger than the stated dimension. Pneumatic fittings are often parallel thread (BSPP) often with a face o ring seal but pipe threads are tapered (BSPT). Whitworth is also 55° thread form but takes its name from the size of the bolt shank.
Eccentrics are very common in steam and model engines. I know the frustration of many different thread sizes and types on a tool or machine. I wish other companies would coat the inside of compressor tanks. It is crazy that the Dura tank does not have a way to drain the condensate. Useful video. Always good to see machines given a second life.
Minor nit-pick - that air cleaner is going to be 1/8" BSP (pipe thread), not 1/8" BSW (Whitworth). Pipe threads are confusingly named after the bore diameter of the bit of black-iron gas pipe they would originally have threaded around the outside, so the numbers are small compared to the obvious OD of the thread. 1/8" BSW does exist, but it is tiny (1/8" OD, 3-and-a-bit mm). It's odd that BSP got adopted into the modern, metric family of threads, but it did - and is sometimes called 'G' (for 'gas'?), perhaps because 'BS' is a bit imperial for our European friends :-)
it may have a draw tube and relies on the pressure to push the water up the tube. I think that is why he could not get it to drain when he had it vertical. @@cmeier7560
Cool stuff. I would round off the corners of that mounting plate which mounts the compressor to the big orange tank. It looks like it could bite your knee if you're not looking.
Thank you for documenting all of your fantastic work. Many episodes ago you fixed an orange compressor. This encouraged me to find an old compressor which I did almost immediately. It was in the trash. I asked for some advice from you which you very kindly gave. Repaired the unit for about 80$ Canadian. It works to this day! And I walk by an aisle at the local tool store that still sells the exact same unit for 500$ Canadian. Danke :)
Wow, that really is a silent compressor. Kudos on the restoration. And that snowflake connector is going to give me nightmares... Really goes to show how valuable machinist skills, particularly thread-turning, are going to become.
With the first compressor: isn't the solenoid the water drain valve? It looks like the compressor should be mounted vertically and then when the solenoid is activated the water will be pushed out. I saw a similar compressor yesterday with an "automatic" solenoid that drained water every now and then.
@@ThePostApocalypticInventor "In my previous life", I was a qualified Dive Master and Compressor Operator. Here everything is in reverse. You do not want to put water or anything else other than pure air into someone's cylinder. At depth this could be ugly. So, the compressed air goes through a heat exchanger first, to cool it down and then the condensed water is drained off. Then it goes through Silica Gel to dry it further and then it goes through activated carbon to clean it further. Well, that was how we did it in my day ... 😀
@@ThePostApocalypticInventorpretty sure there is a pipe inside the tank going to the bottom. That is why you couldn't empty the tank by tilting it. So I think it should be horizontal, like it is. Just need to get the solenoid working.
We have a CHIRON Taifun air compressor too! We bought it 30 years ago for our family operated painting business. It's been used since then, even tho it's a bit oversized at 2.5 Hp, around once a week for a few hours. It just needed 1 or two oil changes and still runs great to this day.
Living in tropical Queensland I have to drain my large compressor daily and on bad days get more than a ltr out of it. A refrigerated air chiller is pretty much essential here.
I live there too mate and I share your annoyance. I haven’t heard of a polymer coated expansion tank before but I will research that. A rusting tank is a killer, literally. Exploding rusty tanks can level a shed and maim or kill the occupants. My tank for the compressor in the 4wd is aluminium to prevent rust.
I have no idea why this showed on my feed as I have never looked at a video about compressors but Thank You! I had forgotten about draining my compressor for the last few years!
Love your collection, we don't have scrap yards like that here in Texas, USA. I put together a collection of German field telephones, a USMC switchboard, and a military radio link for field Telephones.
Thank you for the fun episode, Gerolf! It always gives me a sense of satisfaction to see you bring these discarded often broken parts back together and do something useful with them again. I am somewhat surprised to see Whitworth thread type still around - I thought that died off some time ago, but a quick search shows that it still exists and is used. Differing pipe thread standards are a cause for frustration for sure! Thanks again!
I like my setup where you have a small electric valve at the bottom of the tank which locks the tank if you turn on the compressor. If you turn it off, it will release the residual pressure (very slowly) and the moisture trapped inside, too. As it's constantly open, it will also allow trapped humidity in the air to settle out and drip out over time.
Cool episode, a nice introduction to pneumatics. I tinkered with that stuff from time to time since my teens, mainly in my Book Art Museum period (2014-2018). There's so much more to tell about pneumatics - filters, regulators, in-line fog lubricators, pressure sensors, manifolds, connectors, all kinds of solenoid valves, check valves, safety valves (you can never understate their importance!), pressure testing the tanks etc.
Pneumatics was a blast from the past for me. I actually had to learn that stuff in voc training. It's always been the cheap and fast option in automation. Once you have compressed air in a company, adding rigs is a no brainer. But the first setup usually ends in a pipe massacre 😀
Oh Gerlof, watching you use the teflon tape was killing me. When winding the tape on always have the spool facing such that as you wind the tape on the thread it pulls the tape off the spool instead of unwinding. But you knew that anyway I bet>🤣Anyway I allways enjoy your videos as being a boilermaker/welder/fabricator/maintenance fitter and now Valve amp builder and repairer I can relate to all the stuff you fix for future prosperity! We need more people like you. Bleib in Sicherheit, mein Freund.
The reason you cannot manually purge the water from the hole that the purging solenoid is sitting is that there is a pipe going to the bottom of the tank, where the water normally is, due to gravity.
Gidday from Oz mate. Love to see u breathe life back into scrapped machines. About the bearing on that small compressor, some times u can get a different style bearing with the same dimentions. A roller bearing would go great on the crank end of thing. Salutes from the land down under.
Fantastic as usual. But... The Kaeser has the pump and motor on rubber mounts and a solid pump to tank connection. The pipe will shortly fail due to metal fatigue. You will need a flexible connection eventually. Your channel is one of the very best on RUclips BTW.
We were fixing our compressor a couple days ago and wondered what the purpose of (what turns out to be) the unloader line was, so this was spectacularly well timed information. Thanks!
A few years ago i had pneumatics classes in school and hardly understood anything about how the valves work and how to read the symbols on them, you did a much better job explaining them because mow i actually understand it, thank you
My dad worked at an engineering firm that had Chiron machining centres for many years. He actually got sent to Germany for training at their plant in Tuttlingun. They were very good machines many of which worked 5 or 6 days a week for 20 years.
Interesting watching this video after working on a water pump today with similar failed bearings. One was seized and the other was mostly Ok. Unable to find any of my bearing pullers we removed the first bearing with much trouble. Replacement bearings were $5 each, fortunately for me the bearing shop volunteered to remove the other bearing and also installed both of them for free!
Really appreciate these repair videos, it's reminded me to get my outstanding projects completed. We should only buy producs that have repair manuals\ spares availability and definitely embargo suppliers who don't offer these.
Btw: If you want to optimize your setup to get a high pressure quicker, but still have a large tank for large air operations do the following: - Add a small tank to the compressor. - Connect it with an overpressure release valve to a larger tank which is set to 10% below your cutoff pressure of the compressor. - Connect the large tank back to the small tank with a check valve, so air can only flow from the large tank to the small tank through this connection. This will build pressure really quickly in the small tank and then start charging the large tank, as soon as the pressure is build up. If you use the air faster than the compressor is building it in the small tank, the large tank will supply air back to the smaller tank.
I have a Chiron compressor with 6l Tank (built in the frame itself like yours). This beast can deliver 10 Bar and hold up to 5 Bar when using a blow nozzle continously. I like the small tank because it's usable after turning on within 15 seconds. I want to upgrade this compressor by adding an additional (maybe 50-100l) tank with a valve. So when i just need some quick air, i can fill up the normal 6l tank, and when i need volume, i crank the valve open and interconnect the large tank to the compressor. But since now i have not found a suitable tank for my application. Greetings from Goslar!
I'm a hands on engineer and I learn so much watching you. You would have been an amazing professor!!! Keep up the great work! Much love from Atlanta, Georgia.
Thanks for walking us through how to read those valve diagrams. I gave up once before, thinking it was really complicated. As you rightly pointed out, it really isn't. And now I know.
Thanks for the video, sir. My favorite part of your offerings is your translation of English words and phrases into German. I enjoy hearing what familiar English names for things and places sound like in German. Appreciate your efforts.
Nice episode man! Love your contents. Before the pandemic i used to work in pneumatics here in the philippines and we have a one funny experience when we designed a cyclinder ejection system where underweight and overweight cans on a production line will be automatically ejected. Because of our lack of experience when those cyclinders actuates the cans become dented/damaged 😂. We never have thought that you could just eject it using air only or like an opening underneath. I remember those times. Thanks for sharing your knowledge this are very useful things especially in automated systems. Lots of aspiring engineers today. Cheers feom philippines!
*❤️Only God knows how much grateful i am. After so much struggles I now own a new house and my family is happy once again everything is finally falling into place!!*
Wow...I know her too she is a licensed broker and a FINRA agent she is popular in US and Canada she is really amazing woman with good skills and experience.
I'm a lot older than you but I still feel like repairing and modifying parts to fit my requirements. For example, I'm getting into scale modeling again. This time using an air brush and spray booth adding a reserve tank to a compressor and adding LED lights in a small foldable spray booth. Also restarting my photography skills with a new camera and new lenses to match.
Quite a course in Pneumatics. Good to see you. It's been great watching your repairs of such items, as ever. Re-use is recycling. Keep safe and well, sir. Cheers!
Hello from Denmark! I’m not sure, but the first Compressor, i think the solenoid is for auto draining, there is probably a hose on the inside of the tank going to the bottom. If the solenoid is faulty, that’s probably why the tank is full of water, and you can’t drain it out from there 😊
The solenoid is the drain mechanism of that Dürr compressor. It is probably supposed to be mounted solenoid down and it would occasionally open up to release the water.
I have a small compressor similar to the yellow one and will be installing it inside my Bridgeport clone milling machine. It will switch on when I turn on the mill so I can use it to blow swarf out of the way. It will save running my big compressor as I only need short bursts of compressed air when machining. It could also be used on a lathe. Awesome video as always, cheers, Stuart 🇦🇺
Love the air comp. content! The Chiron is especially cool, never seen one like it before! I used to rent a 210cfm Kaeser that I tried desperately to buy, but ended up getting sold to someone else for much less than I offered. That's okay, I ended up with my own 375cfm, but I'm still very fond of Kaeser.
There's something about old compressors that kind of scare me, given that it could have hidden flaws that might cause the tank to rupture and ruin your day somewhat, just one of those things that my anxiety-ridden mind seems to get fixated on sometimes... :S
Thats so cool - I also accumulated various pneumatic parts over the last year "because I need them for projects" but they have just been sitting around. This motivates me to clean them and actually use them. Also the explanation of the valves was pretty helpful :)
nothing like a good old fashioned steam bath to loosen up 50 years of grime and muck lol the old yellow one looks like it was the precursor to what we call in north America these days "the pancake compressors" they have a flat round tank on the bottom but the rest is really similar to the upper parts of that old yellow beater
I recognise the pump at 21seconds! I pulled one from a broken autoclave. The manifold is painted not anodised and the aluminium underneath had corroded. Even cleaned up it was too pitted for the (rather poor quality) rubber washer valves to seal enough to pull a vacuum again.
wow fascinating, you'd be a great instructor. I found a commercial truck seat in dumpster with six individual dual-valves (inflate/deflate)....an air pocket balloon for side lats, head/neck rest, thighs, spine/lower back, up/down, and one more....I should have converted to indoor use on rollers.
Hi, 1/8 BSP (British Standard Pipe) thread,not Whitworth. In UK ALL pressure vessels must have an independent pressure relief valve, for obvious reasons. Many thanks.
I am always impressed by your videos and what you can put together from your finds, old or new. It makes me think you would be a perfect person (with the channel to present it) to try one of the "machines" in the Global Village Construction Set (Open Source Ecology)... but from your scap-yard finds 😅... even if it's at first a plan to collect all the parts over a period of time? Thanks for your videos.
Yes I should check the compressor drain. Picked up some Festo pneumatic valve blocks and made an instructable about the software hack. The schematics were a whole new syntax. Great work.
This reminds me, I have to replace a control line on a tiny pancake compressor. Was planning on replacing the check valve too, but I can't seem to remove the old one. I also have a horn that needs some testing and work. The bell is missing a top section, but I have another bell from a different horn as a potential donor.
Are you sure that is 1/8th Whitworth? Looks more like 1/8th BSP (British Standard Pipe, fairly standard in pipe fittings world wide). Whitworth is not standard in pipe fittings and the thread diameter would be roughly 3.2mm, but it looks like it is 1/8th ID which would fit with the BSP standard. (Goes off the ID of the pipe rather than the OD of the thread which Whitworth and all other systems do). Also your outro was very quiet. Many thanks for the video, useful information.
You have reminded me of the difficulty I have in getting filters to fit my compressor. I can only find cheap plastic ones to fit that make it quieter and filter the air. If I go for any metal ones, none of the adapters I've tried works for the thread. 😞
in the coal mine i worked at they two at the pit bottom they were 8 meters in length an the pistons were 150mm in diameter they were used for pushing coal tubs in an out of the cages
My grandfather was Hölger Ludwig Lauritz Mitchell - educated at the polytechnic in Copenhagen. He was chief engineer at Harnischfeger (later P&H) in Milwaukee. Though I never met the man (he died when my mother was in high school) a quote from him was: "Technical German is a language unto itself." Very true. Add prefixes and suffixes - and you have ONE very specific word. Example: There is a German word for a car "bra" that means, "Protector Against Stones." Anybody?
😅 Jaas, well, in english we call it 'hoarding'. An occupational hazard for those who repair things.
Yes. The “oooh, that will be useful” thought process!
I’m going to use those wires and AC/DC converters someday!
@@seanwieland9763The need/use for them usually comes a couple of days after you finally discarded them...
My partner, "we need to clean!"
Me, "😁 I'll put the --Electronics-- Treasure in the garage! "
@farfartony751, So should he not collect things to make videos about?
Couldn’t hear the last couple of minutes even with the volume on full. When the ad came on it nearly blew my eardrums. 🧨
You have the most amazing junkyards I've ever seen.
I wish I had a junkyard where I live. Everybody goes to a recycling place instead where there's no option to buy old/broken stuff.
This yellow mini air compressor is so cool and versatile
Great find ^__^ !!
typical compressor for systemceiling worker to power a pneumatic nailgun.
Definitely worth investing in a pipe flare kit so you can make your own flare ended pipes out of good quality copper stock
The one end looks similar to an automotive fuel/transmission/ac quick connect line. Any recommendations on a good tool for that?
And a small pipe bender
@@cb84capri Mastercool 72485 not cheap but it has so very many uses
I can appreciate how much time it takes to look for a replacement for that threaded connector, and when it was unavailable, take the time to find TWO connectors that accomplish the same thread reduction.
Lovely stahwille spanner my favorite 🤩
That first compressor would be useful for airbrushing paint. It is amazing how much water was inside of it.
I would like to see you build a pulley and gear press someday.
post apocalyptic inventor: “i will have to take this compressor completely apart”
me: “yessssss”
Hi. I frequently watch your videos because I am doing as a hobby more ore less the same as you - repairing things. And it is amazing how often these things are faulty and thrown away just because an inexpensive part like a ball bearing or a spring or a capacitor or a diode is broken.
I think that our societies (I live in Switzerland but I came from the Aachen region) is kind of distorted. Those who would be able to repair these things don't do it because they feel that their time is too precious and well paied that it is not worth it and they prefer selling new items - usually of worse quality.
But now just a tip for you for fast replacing a bearing without having to hammer it home:
Put the rotor of the motor in the freezer for 1h and - short before you want to mate them - the bearing on the top of a 100W incandescent bulb for 5 minutes or so.
Then span the cold motor with the shaft up in the vise and grab the hot bearing with a leather glove and put it on the shaft.
I have done that so often and it always works fine. Most of the time the bearing just falls in position, but it is wise to have an aluminum or brass tube or nut with an inner diameter slightly bigger than the shaft but not larger than the inner race of the bearing at hand so that you can tap the bearing in place if the fitting is still a bit tight.
But I never needed much force and its a fast and safe method too..
Best regards
Adalbert
You've got to be careful aiming an air gun at your hand like that, the risk is that a sharp enough burst of air can break the skin and blow an air bubble into your bloodstream. It might seem an unlikely scenario, but the risk is more than zero and if it does happen it can be fatal. I would hate for anything to happen to you, I really enjoy your videos, thanks and stay safe❤
Came here to say that too. I’m a little disappointed that nobody else seemed to notice it as a problem.
Concur, spotted that (only just seen this video). Although the people who work on these machines seem to have skin made of steel, it's still not an advisable way to test for compressed air and there could have been shards of metal or anything else in the lines, gun etc.
It can also force oil or other contaminants on your skin into the bloodstream.
Could you have not used a nut on thread of shaft to drive bearing on?
That looked like an air injection injury waiting to happen. I never considered the possibility of contaminants being pushed in with the air, though that seems like a real possibility. High pressure injection injuries can occur with all sorts of fluids.
en.m.wikipedia.org/wiki/High_pressure_injection_injury
I have rebuilt a lot of chainsaw engines, and I use a heat gun to heat to expand the inner race of the bearing to install the bearings on the crankshaft. I use a hand held pyrometer, to measure the temperature, and keep the applied heat below 350F. You could also use dry ice, to cool the shaft, or put the shaft in the freezer. Normally, the bearings will just slide right into place.
I work at Chiron, we actually only stopped making compressors in the 2000s.
Most of our big industrial facilities are still powered by huge screw type compressors of our own :)
Dampers absorb mechanical vibration. Dampeners make things wet.
The 1/8bsp fitting has already been covered, but for reference, 1/8bsp is 55° thread form and takes its name from the pipe bore size so the thread diameter is a fair bit bigger than the stated dimension. Pneumatic fittings are often parallel thread (BSPP) often with a face o ring seal but pipe threads are tapered (BSPT). Whitworth is also 55° thread form but takes its name from the size of the bolt shank.
Eccentrics are very common in steam and model engines. I know the frustration of many different thread sizes and types on a tool or machine.
I wish other companies would coat the inside of compressor tanks.
It is crazy that the Dura tank does not have a way to drain the condensate.
Useful video. Always good to see machines given a second life.
Minor nit-pick - that air cleaner is going to be 1/8" BSP (pipe thread), not 1/8" BSW (Whitworth). Pipe threads are confusingly named after the bore diameter of the bit of black-iron gas pipe they would originally have threaded around the outside, so the numbers are small compared to the obvious OD of the thread. 1/8" BSW does exist, but it is tiny (1/8" OD, 3-and-a-bit mm). It's odd that BSP got adopted into the modern, metric family of threads, but it did - and is sometimes called 'G' (for 'gas'?), perhaps because 'BS' is a bit imperial for our European friends :-)
I finally get home and get to watch this!
02:04 The solenoid is probably used to automatically purge condensation from the tank on a (broken) timer
... and I bet the whole compressor would/should have been mounted vertically, so that the valve is the lowest point of the whole setup.
it may have a draw tube and relies on the pressure to push the water up the tube. I think that is why he could not get it to drain when he had it vertical. @@cmeier7560
Cool stuff. I would round off the corners of that mounting plate which mounts the compressor to the big orange tank. It looks like it could bite your knee if you're not looking.
Yes, and paint it 😅
Wouldnt be a hobby workshop if u didnt have a few booby traps laying about.
Thank you for documenting all of your fantastic work. Many episodes ago you fixed an orange compressor. This encouraged me to find an old compressor which I did almost immediately. It was in the trash. I asked for some advice from you which you very kindly gave. Repaired the unit for about 80$ Canadian. It works to this day! And I walk by an aisle at the local tool store that still sells the exact same unit for 500$ Canadian. Danke :)
that third air compressor is so cool. they really dont make them like they used to!
Wow, that really is a silent compressor. Kudos on the restoration.
And that snowflake connector is going to give me nightmares...
Really goes to show how valuable machinist skills, particularly thread-turning, are going to become.
Fascinating, that Chiron compressor is a work of art. Great content as always.
With the first compressor: isn't the solenoid the water drain valve? It looks like the compressor should be mounted vertically and then when the solenoid is activated the water will be pushed out. I saw a similar compressor yesterday with an "automatic" solenoid that drained water every now and then.
Maybe that was the Idea. Seems like it was never mounted vertically and the water wasn't drained.
@@ThePostApocalypticInventor "In my previous life", I was a qualified Dive Master and Compressor Operator. Here everything is in reverse. You do not want to put water or anything else other than pure air into someone's cylinder. At depth this could be ugly. So, the compressed air goes through a heat exchanger first, to cool it down and then the condensed water is drained off. Then it goes through Silica Gel to dry it further and then it goes through activated carbon to clean it further. Well, that was how we did it in my day ... 😀
@@ThePostApocalypticInventor Try it out then 🙂
@@ThePostApocalypticInventorpretty sure there is a pipe inside the tank going to the bottom. That is why you couldn't empty the tank by tilting it. So I think it should be horizontal, like it is. Just need to get the solenoid working.
The end fitting has an internal line extending to the bottom. That's why the puzzled draining!
We have a CHIRON Taifun air compressor too! We bought it 30 years ago for our family operated painting business. It's been used since then, even tho it's a bit oversized at 2.5 Hp, around once a week for a few hours. It just needed 1 or two oil changes and still runs great to this day.
I have a compressor that ive been meaning to fix for 4 years now. This video was what i needed.
Living in tropical Queensland I have to drain my large compressor daily and on bad days get more than a ltr out of it. A refrigerated air chiller is pretty much essential here.
I live there too mate and I share your annoyance. I haven’t heard of a polymer coated expansion tank before but I will research that. A rusting tank is a killer, literally. Exploding rusty tanks can level a shed and maim or kill the occupants. My tank for the compressor in the 4wd is aluminium to prevent rust.
I have no idea why this showed on my feed as I have never looked at a video about compressors but Thank You! I had forgotten about draining my compressor for the last few years!
Love your collection, we don't have scrap yards like that here in Texas, USA. I put together a collection of German field telephones, a USMC switchboard, and a military radio link for field Telephones.
Thank you for the fun episode, Gerolf! It always gives me a sense of satisfaction to see you bring these discarded often broken parts back together and do something useful with them again. I am somewhat surprised to see Whitworth thread type still around - I thought that died off some time ago, but a quick search shows that it still exists and is used. Differing pipe thread standards are a cause for frustration for sure! Thanks again!
I like my setup where you have a small electric valve at the bottom of the tank which locks the tank if you turn on the compressor. If you turn it off, it will release the residual pressure (very slowly) and the moisture trapped inside, too. As it's constantly open, it will also allow trapped humidity in the air to settle out and drip out over time.
if you put a timer to a e valve will be better..it will sneeze water all the time..
Cool episode, a nice introduction to pneumatics. I tinkered with that stuff from time to time since my teens, mainly in my Book Art Museum period (2014-2018). There's so much more to tell about pneumatics - filters, regulators, in-line fog lubricators, pressure sensors, manifolds, connectors, all kinds of solenoid valves, check valves, safety valves (you can never understate their importance!), pressure testing the tanks etc.
Love the first small compressor!
If the first little compressor is mounted with the solenoid valve down there probably was a circuit that purged the water using the solenoid
Pneumatics was a blast from the past for me. I actually had to learn that stuff in voc training.
It's always been the cheap and fast option in automation. Once you have compressed air in a company, adding rigs is a no brainer. But the first setup usually ends in a pipe massacre 😀
Oh Gerlof, watching you use the teflon tape was killing me. When winding the tape on always have the spool facing such that as you wind the tape on the thread it pulls the tape off the spool instead of unwinding. But you knew that anyway I bet>🤣Anyway I allways enjoy your videos as being a boilermaker/welder/fabricator/maintenance fitter and now Valve amp builder and repairer I can relate to all the stuff you fix for future prosperity! We need more people like you. Bleib in Sicherheit, mein Freund.
Amazing the way you are able to diagnose and improvise so quickly. FANTASTIC VIDEOS !!!!
The reason you cannot manually purge the water from the hole that the purging solenoid is sitting is that there is a pipe going to the bottom of the tank, where the water normally is, due to gravity.
Gidday from Oz mate. Love to see u breathe life back into scrapped machines. About the bearing on that small compressor, some times u can get a different style bearing with the same dimentions. A roller bearing would go great on the crank end of thing. Salutes from the land down under.
That little yellow compressor is a nice find, well done getting it back in service!
Fantastic as usual. But... The Kaeser has the pump and motor on rubber mounts and a solid pump to tank connection. The pipe will shortly fail due to metal fatigue. You will need a flexible connection eventually. Your channel is one of the very best on RUclips BTW.
I wish I could scare up some cheap compressor parts for my shop. Love that horseshoe looking tank.
First compressor should be mounted vertically and the solenoid used as an auto drain? 😀
Yes, I agree that looks like its purpose. Drains on startup, and/or shutdown.
We were fixing our compressor a couple days ago and wondered what the purpose of (what turns out to be) the unloader line was, so this was spectacularly well timed information. Thanks!
A few years ago i had pneumatics classes in school and hardly understood anything about how the valves work and how to read the symbols on them, you did a much better job explaining them because mow i actually understand it, thank you
My dad worked at an engineering firm that had Chiron machining centres for many years. He actually got sent to Germany for training at their plant in Tuttlingun. They were very good machines many of which worked 5 or 6 days a week for 20 years.
Interesting watching this video after working on a water pump today with similar failed bearings. One was seized and the other was mostly Ok.
Unable to find any of my bearing pullers we removed the first bearing with much trouble. Replacement bearings were $5 each, fortunately for me the bearing shop volunteered to remove the other bearing and also installed both of them for free!
30+ minutes of pleasurable hacking. Thanks.
Really appreciate these repair videos, it's reminded me to get my outstanding projects completed.
We should only buy producs that have repair manuals\ spares availability and definitely embargo suppliers who don't offer these.
Job well done. I have a vintage compressor that was from a tyre place. Built in 1970s
Sad that such quality items end up in the bin. Glad you rescued some 👍
Btw: If you want to optimize your setup to get a high pressure quicker, but still have a large tank for large air operations do the following:
- Add a small tank to the compressor.
- Connect it with an overpressure release valve to a larger tank which is set to 10% below your cutoff pressure of the compressor.
- Connect the large tank back to the small tank with a check valve, so air can only flow from the large tank to the small tank through this connection.
This will build pressure really quickly in the small tank and then start charging the large tank, as soon as the pressure is build up. If you use the air faster than the compressor is building it in the small tank, the large tank will supply air back to the smaller tank.
eccentric is a common word, a steam engine has a crank for the piston, and an eccentric for the valve ;)
I have a Chiron compressor with 6l Tank (built in the frame itself like yours). This beast can deliver 10 Bar and hold up to 5 Bar when using a blow nozzle continously. I like the small tank because it's usable after turning on within 15 seconds. I want to upgrade this compressor by adding an additional (maybe 50-100l) tank with a valve. So when i just need some quick air, i can fill up the normal 6l tank, and when i need volume, i crank the valve open and interconnect the large tank to the compressor. But since now i have not found a suitable tank for my application. Greetings from Goslar!
I'm a hands on engineer and I learn so much watching you. You would have been an amazing professor!!! Keep up the great work! Much love from Atlanta, Georgia.
A hands on engineer? Like an improvisational engineer?
Great video 👍 Learning so much and having a laugh along the way,I think the pressure relief valves fail when you're friends use the compressor 😅
Thanks for walking us through how to read those valve diagrams. I gave up once before, thinking it was really complicated. As you rightly pointed out, it really isn't. And now I know.
Yeah. Fluid dynamics and connector nightmares. At some point youre usually better off having a lathe and making them yourself when you need them 😂
I enjoy seeing old equipment and tools come back to life. Great work.
Thanks for the video, sir. My favorite part of your offerings is your translation of English words and phrases into German. I enjoy hearing what familiar English names for things and places sound like in German. Appreciate your efforts.
Nice episode man! Love your contents. Before the pandemic i used to work in pneumatics here in the philippines and we have a one funny experience when we designed a cyclinder ejection system where underweight and overweight cans on a production line will be automatically ejected. Because of our lack of experience when those cyclinders actuates the cans become dented/damaged 😂. We never have thought that you could just eject it using air only or like an opening underneath. I remember those times. Thanks for sharing your knowledge this are very useful things especially in automated systems. Lots of aspiring engineers today. Cheers feom philippines!
*❤️Only God knows how much grateful i am. After so much struggles I now own a new house and my family is happy once again everything is finally falling into place!!*
Wow that's huge, how do you make that much monthly?
I earn from investing in the digital market with the guidance of Mrs Mary Margaret Schimweg Brokerage services. I'm happy to talk about it..
Wow...I know her too she is a licensed broker and a FINRA agent she is popular in
US and Canada she is really amazing woman with good skills and experience.
I remember giving her my first savings $20,000 and she opened a brokerage account for me it turned out to be the best thing that ever happened to me.
You are incredible, I started having issues with my small compressor a couple of days ago ha ha!
Always fun and educational to watch you repair and modify old stuff. thanks for the video from the Maritimes, Canada
Always inspired to go fix things after watching your videos.
Thank you for the simple lesson on pneumatic cylinders. Pneumatics in an area that I have yet to dive into. Your explanation was very helpful.
I'm a lot older than you but I still feel like repairing and modifying parts to fit my requirements. For example, I'm getting into scale modeling again. This time using an air brush and spray booth adding a reserve tank to a compressor and adding LED lights in a small foldable spray booth. Also restarting my photography skills with a new camera and new lenses to match.
Quite a course in Pneumatics. Good to see you. It's been great watching your repairs of such items, as ever. Re-use is recycling. Keep safe and well, sir. Cheers!
Hello from Denmark! I’m not sure, but the first Compressor, i think the solenoid is for auto draining, there is probably a hose on the inside of the tank going to the bottom. If the solenoid is faulty, that’s probably why the tank is full of water, and you can’t drain it out from there 😊
Very rewarding to see those old, high quality compressors repaired and brought back to useful life. I enjoy your tool repair videos.
Pretty nice handy compressor for air brush or small repairs.
The solenoid is the drain mechanism of that Dürr compressor. It is probably supposed to be mounted solenoid down and it would occasionally open up to release the water.
I have a small compressor similar to the yellow one and will be installing it inside my Bridgeport clone milling machine. It will switch on when I turn on the mill so I can use it to blow swarf out of the way. It will save running my big compressor as I only need short bursts of compressed air when machining. It could also be used on a lathe. Awesome video as always, cheers, Stuart 🇦🇺
I wait for your videos more than any others I’m subscribed to. Thanks Geoff! Always a treat for me.
Love the air comp. content! The Chiron is especially cool, never seen one like it before! I used to rent a 210cfm Kaeser that I tried desperately to buy, but ended up getting sold to someone else for much less than I offered. That's okay, I ended up with my own 375cfm, but I'm still very fond of Kaeser.
Such a great video! Thank you 🎉
I learn so much from this channel, thanks TPAI
Thanks for giving us the skinny on Dürr.
There's something about old compressors that kind of scare me, given that it could have hidden flaws that might cause the tank to rupture and ruin your day somewhat, just one of those things that my anxiety-ridden mind seems to get fixated on sometimes... :S
Loved these videos, those engraved diagrams are cool and easy to explain, makes total sense.
Thats so cool - I also accumulated various pneumatic parts over the last year "because I need them for projects" but they have just been sitting around. This motivates me to clean them and actually use them. Also the explanation of the valves was pretty helpful :)
Jetzt brauchst du nur noch einen trockeneisstrahler eine Sandstrahlkabine, um die geretteten Maschinen wieder in neuem Glanz erstrahlen zu lassen
nothing like a good old fashioned steam bath to loosen up 50 years of grime and muck lol the old yellow one looks like it was the precursor to what we call in north America these days "the pancake compressors" they have a flat round tank on the bottom but the rest is really similar to the upper parts of that old yellow beater
Grüße aus bayern. Wieder was dazugelernt.😊
I recognise the pump at 21seconds! I pulled one from a broken autoclave. The manifold is painted not anodised and the aluminium underneath had corroded. Even cleaned up it was too pitted for the (rather poor quality) rubber washer valves to seal enough to pull a vacuum again.
wow fascinating, you'd be a great instructor. I found a commercial truck seat in dumpster with six individual dual-valves (inflate/deflate)....an air pocket balloon for side lats, head/neck rest, thighs, spine/lower back, up/down, and one more....I should have converted to indoor use on rollers.
Hi, 1/8 BSP (British Standard Pipe) thread,not Whitworth. In UK ALL pressure vessels must have an independent pressure relief valve, for obvious reasons. Many thanks.
I am always impressed by your videos and what you can put together from your finds, old or new. It makes me think you would be a perfect person (with the channel to present it) to try one of the "machines" in the Global Village Construction Set (Open Source Ecology)... but from your scap-yard finds 😅... even if it's at first a plan to collect all the parts over a period of time? Thanks for your videos.
Yes I should check the compressor drain. Picked up some Festo pneumatic valve blocks and made an instructable about the software hack. The schematics were a whole new syntax. Great work.
This reminds me, I have to replace a control line on a tiny pancake compressor. Was planning on replacing the check valve too, but I can't seem to remove the old one.
I also have a horn that needs some testing and work. The bell is missing a top section, but I have another bell from a different horn as a potential donor.
Beautiful work!
Well done as usual. Hope you are having a nice summer.
I've been collecting pneumatics for several years and have all kinds a junk I can't use today but I swear one day I'll be building something
Die neue Folge passt mir gerade gut. Danke.
Are you sure that is 1/8th Whitworth? Looks more like 1/8th BSP (British Standard Pipe, fairly standard in pipe fittings world wide). Whitworth is not standard in pipe fittings and the thread diameter would be roughly 3.2mm, but it looks like it is 1/8th ID which would fit with the BSP standard. (Goes off the ID of the pipe rather than the OD of the thread which Whitworth and all other systems do).
Also your outro was very quiet. Many thanks for the video, useful information.
I wish I had the junk yards you have.
You have reminded me of the difficulty I have in getting filters to fit my compressor. I can only find cheap plastic ones to fit that make it quieter and filter the air. If I go for any metal ones, none of the adapters I've tried works for the thread. 😞
Pneumatic linear activators like the one shown were used to operate the doors on The Enterprise in the original Star Trek series.
in the coal mine i worked at they two at the pit bottom they were 8 meters in length an the pistons were 150mm in diameter they were used for pushing coal tubs in an out of the cages
My grandfather was Hölger Ludwig Lauritz Mitchell - educated at the polytechnic in Copenhagen. He was chief engineer at Harnischfeger (later P&H) in Milwaukee. Though I never met the man (he died when my mother was in high school) a quote from him was: "Technical German is a language unto itself." Very true. Add prefixes and suffixes - and you have ONE very specific word. Example: There is a German word for a car "bra" that means, "Protector Against Stones." Anybody?