As a small child, I was never more happily taking stuff apart, I rarely got them back together, I can now proudly say I can put stuff back together better than the left the factory usually lighter a few spare screws left over it probably didn't need them anyway.
As a young boy I tried to fix a wiring issue with the family Honda 90 3-wheeler well after it came back from the dealer the mechanic told my dad to "break my fingers" so as to not allow me to ever again mess with any machine. I never stopped taking machines apart and learning all I.could, today I can fix just about anything I own.
There's always something beautiful about seeing how they figured out electrics before the abundance of computers. The thought process of overcoming your problem with pure analog parts is always great.
shurdi3 I once used a hydraulic ram that was controlled by a beautiful mechanical needle that moved just like the control in this thing, you applied a current and it bent the needle, then the hydraulic fluid would flow the other way and move until the system was balanced
I always backtrack on myself like ten times when I describe this sentiment to people: "Like, sure, the ingenuity and technology that goes into ICs is one of the greatest accomplishments of humankind BUT! The kinds of solutions people used to come up with for what are now mundane for loops or if/else statements are so clever... And yeah, yeah, it's unbelievable that you can cram actual billions of transistors into a tiny chip, but the physical applications can just be so boring."
There's a guy on RU-vid that sneaks into old elevator motor rooms and man the old analog elevator controls are always gorgeous and fascinating to watch.
As a former steam boiler technician I can recognize the Clever Brooks green paint all over it! Commonly used to operate the gas valve on boilers. Its operated by a 135 ohm pot and be set for 90 deg or 160 deg operation. These are very reliable old school actuator that is still used today. Keep your stick in a vice!
These things are the best. They have a stupid amount of torque, have analog output and can be controlled with 2 relays. If you want to control BIG stuff with an arduino or pi this is the thing you want. Also, the wound wire rheostat is called a "slide wire" they are pretty robust.
This is used as you explain, but is more commonly used as a positioner motor for dampers in a duct system of any kind. As in intake air, exhaust air, zoned systems etc. The latest iteration would be a modutrol4, used all over the world. The one you have, is known as a series 90, 135 ohm, it is a 3 wire proportional based on the resistance of the internal rheostat for positive positioning. This is done through r1-w1-b1 terminals to a matching 135 ohm controller, it always tries to maintain the 135 ohm balance in the circuit, (Wheatstone bridge). They are also made in 0-20ma, and 0-10vdc drive. You can also install a module to convert the series 90 to electronic control.
There are 8 coils so not 3-phase - looks similar to a synchronous motor - uses the capacitor to make it prefer to rotate in one direction - you can conrtol the direction of these by changing the capacitor connection.
mikeselectricstuff we use sync motors for antenna rotor control with a cap to switch the direction of rotation. The ones i run into are 4 pole but same difference as 8 pole.
Given that this motor is turning around standstill often, I'd hazard to guess it's asynchronous - non permanent magnet rotor. For that application, synchronisity (?) isn't critical anyway. Under heavy load, it'll just slow down a little bit...
I was scratching my noodle on this, I thought it looked like a single phase induction motor, it occurred to me maybe being from one of the colonies it might take some of that weird two phase 220V you guys like and then convert one to the third phase with the cap. But what you said makes much more sense, you’ve given me something to google, cheers
Mike, exactly, a three phase would have either 6 or 9 stator windings. the three wires are either for CW/CCW/Common, or Hot/Neu, and the third for the windings that correct the slip angle (cant remember the correct name)
Crikey, i thought I'd accidentally clicked on a wranglerstar video by mistake. The naked product placement 😉The link for purchase will be in the doobily doo?
I actually found one close to it that was mass produced...has a clear plastic handle though. Amazing what happens when you look in forgotten tool bins.
Talking about taking apart Christmas presents on Christmas morning brought back a lot of good memories, thank you. I still love taking shit apart, and have passed it on to one of my sons.
When You showed that hidden capacitor and explained it's existence, a brief flashback of my short career in maintenance services came back with explanation of why was something broken years back. I bet i could make it work now!
My Mom always wanted to know why I took everything apart. she would say: "after taking apart the eighth alarm clock, don't they all look the same?" So I sent her your video starting at 14:35. Cheers, Mark
We run 14 of these where I work 10 are for metering combustion air to burners in ovens and the other 4 are for are on globe valves to meter steam to coils for humidity control. AVE you are almost on point whit how they operate. A steady 24VAC is fed in at L1 and L2 and a control signal is fed in at the other connections(not using conn tags because they are different for some of these). When the control signal is fed in it goes to both the rheostat looking devise(used as an equalizing encoder) and the direction switches that just behind it. If the control signal is higher than the position on encoder it will cause the contact arm to lean one direction and turn the motor in that direction and if control is lower the the contact arm leans the other way and turns the motor in reverse. As for the motors in the ones we run they are not 3 phase but have 2 sets of windings one for forward and one for reverse this looks to be the case in yours as well but it's hard to see the wiring to know for sure. However though it could be a 3 phase being ran on dirty conversion I see it more often than one would think.
I think I like these teardowns of old gear the best. Always interesting to see how another generation's minds solved problems with the technology at hand.
"Nobody panic." Ah words that speak to the very lowest cockles of my heart, driving it in fear to the gutter almost as fast as the words "We need to talk."
Most of those mod motors were controlled with a 0-135 ohm pot. from a temp. or pressure controller. Use the RWB terminals.(R-B for big fire. R-W for wittle fire. Old way to remember).A motor crank arm and linkage would connect to the air damper/butterfly gas valve on forced draft boilers to "modulate" the flame between low fire and high fire.
I never understood electrical stuff. It baffles me how guys like Westinghouse and Tesla developed the processes that drive our world today. Think about it. Yes, we are very much living in a digital age. But the basic electrical building blocks haven't changed since the nineteenth century. Thank you AvE for this awesome video!!!
My old man was a combustion engineer, oil fired power stations, oil fired ships etc, anyway he snuffed it in 1984 and when I got around to sorting out his shed load of junk I found one of these, I used it for a chicken shed door opener/closer on a time switch for many years. Breaks my heart to see one ripped apart. Still got mine sat in my shed, bet she still works too
Speaking of smells. I was a patrolman back in the day and had an old guy what went to his great reward in the back of an Astro van at the end of June during a nasty heat wave. 10 days later the neighbors complained about the whiff comin off o the van. My Sargent bulled up to the slidy door and gave it a yank while I back peddled like a mo fo. Sargent dumbarse then stuck his head in the van for a looksee while said old guy dripped full leak onto the curb. The look on Sargent Dipsticks face when he turned around was priceless and a thing to behold. He turned the color of your bench mat and the rubber neckers for 100 yards chain puked. It was epic. I grabbed a dust mask and smeared it with Noxema cold cream then went and retrieved the aforementioned Sgt who had gone to his knees like a bolted sow. Radio calls were made for the Jeebless meat wagon from a block away. The perimeter practically made itself.
Taking apart things and putting them back together is the reason I’m in the career field I am today. I ended up getting into computers and PLCs because of my penchant for destruction and reconstruction and all. Now I get paid to take them apart, find out what was wrong, fix it and put it back together again. Loving your videos, and thank you for not being like the other RU-vid channels, they are controlled by sponsors and censored to high heaven. I love the real world factor you put in. Stay real, keep being you, and never be afraid of a little schmoo.
Gay man here who happens to love your channel, gay jokes and all. As you always say, if you can’t laugh at yourself! I’m director of engineering for a hotel management company and tool freak! We maintain, repair, and replace all manner of equipment. I work on everything from automobiles to HVAC, plumbing, and electrical on the side. I was taking my sister’s music box apart at ten years old, just to see how the thing worked. (Never sounded the same again!) Been exploring the inners of every spinning thing since and can’t get enough of your tear downs! Keep ‘em coming, you vulgar genius! And a big shout-out from Louisiana!
Thanks for reminding me of my youth and the demise of various clockworks, radios and non-replaceable machinery. Although it also brings to mind my Father's unpleasant reactions to some of my activities that fed my curious youthful brain.
I work in an old office building in downtown Toronto. Doors opened in 1914. I've work there for 25 years. In 1965 they installed air conditioning. Each floor has it's own Trane air handling unit. Each unit has 7 of these actuators (Honeywell Brauchman) Four zones per floor. One unit controls the steam valve for the coil, one for the cooling (chilled water) control, one for the fresh air recirculated air damper, the other 4 for the different zones controlled with thermostats. Filled with transmission fluid. They are work horses and never die if maintained properly. If you look at the plate on the top there should be a wiring diagram. Very interesting little things. And the first one I worked on I dumped the fluid all over the place also. Lol.
It’s a permanent split capacitor motor. Three wires are common, winding 1, and winding 2. Both windings are in parallel but one has the capacitor in series. Reversing is easy just have the capacitor switch which winding it’s in series with and rotation changes. This is supper easy with a single pole double throw switch. Imagine a triangle with Common at the bottom node, windings on the sides, and a capacitor on the top. So C-W1-Cap-W2-C. All you have to do is apply power at the node W1-Cap or Cap-W2, the one you choose determines rotation.
To confirm this on the motor just measure the resistances of between the three wires. 2 resistance measurements will be the same (w1-c, w2-c) and one will be the sum of both resistances (w1-w2).
Rather than being a 3ph motor with 3 sets of coils, this appears to have 4 sets coils in it. With coils 1 & 3 being perpendicular and 2 & 4 perpendicular, that makes it easier to change the rotation of the motor without having to reverse the polarity of the capacitor.
Great Videos. This is a cheap clone of the Honeywell servo unit designed to operate in the Minuteman ICBM Missle Sios of the early 1970's. Low humidity air was supplied to equipment cooling and regulated by the outlet air at each demand function. The actual government model kept refrigerant oil in the bath and was under vacuum so as to negate moisture for any corrosion inside the controller. These units were extremely reliable as you could imagine. Easy to rebuild back at base calibration shops. These military versions were disbanded after time and a different configuration used. 25 inches of vacuum was the demanded and achieved. This is a cheap knockoff as this goes if you can imagine that. I worked there on my tour. I love your videos and look forward to them.
Just like I spent my child hood, taking apart industrial kit apart and learning about it. Remember my dad taking a very similar servo from an asphalt plant burner apart and showing me it secrets
Hey we have those on our furnaces! Except ours are Honeywell and are alot bigger but same concept. It's awesome to see you tear down this industrial equipment as it has helps me learn alot about this older stuff
We have several of these at work preforming both functions you describe, some units use them for both. One to control the incinerator burner and others to open and close dampers to control oven heat. It’s cool to see one taken apart.
Haven't read all the comments so I may be repeating something. Philips screws were introduced to improve indystrial output, too much time was being wasted trying to keep a slotted screwdrivers in place. Pozidrive was introduced to allow some flexibility in the position of the driver, it meant that the driver did not have to be dead square to the face of the screw. It also provided a reduction in cam out, the bit had a more positive engagement, hence the name. Tork was then introduced to provide a means of applying greater torque, I believe it came from the motor industry. Tork also provided a degree if security, at least until the bits became readily available. There's also a Tork screw with a pin in the centre of the recess that was a security fixing but of course the bits are now readily available.
Listening to you explain the switching reminds me of the main generator on the class 47 brush diesel locos that had decompounding winding inside the main generator to stop us heavy handy drivers overloading the generator and traction motors. An exciter current would be sent through an extra winding on the generator in the opposite direction of the main current and the two magnetic fields would try to balance each other out. No matter how hard you tried you simply couldn't overload them. Pretty clever stuff.
The Posi-Drive's blade thickness is constant from shaft to the point. Phillips has a taper. And in addition to JIS, there's also Reed & Prince, which uses a deeper cross slot in the fastener head (pointier driver). Q: How do you make a Phillips screwdriver? A: Vodka and milk of amnesia! Sa-loot!
HAH! You hit two of the nerves I have left! Back in the dayo, we had T.I. chit (Texas Instruments) Old, but gold tech back then that was a "sequencer", old version of ladder magic!! Worked the whole beast through the whole cycle & just started over! ALSO, the Germans realized about rubber oxidation way back in the war days. They would submerge tires in water (tanks, lakes, streams) to keep them fresh as a virgin! The use of high natural rubber content made tires shrivel like your Johnson when you piss out in 20 below!!!
Thanks again for explaining the most useless of machinery. I only wish that you had been around when I used to come across an abundance of military surplus impliments that we had no idea what it was or how it worked. I truly enjoy these gems of knowledge and your step by step analysis of each part.
Used to take my families alarm clocks apart and not not put them back to working order. My mum would freak out, my dad would laugh. That's enough about my dysfunctional family history. But Damn, I love the stuff you do.
Very interesting, I worked in the hevac industry for 35 years and encountered many such devices and never knew about the guts of them. They are used for damper controls for zone operation fresh air/ recirculating air etc. depending on the input requirements, specification etc. Used many of this brand it still is an industry leader albeit updated for todays more sophisticated requirements.
I didn't know why you got excited when you opened the motor, I'm not that educated on these things. But as a man who tinkers that's such a relate-able great feeling that's one of my favorite parts of this channel.
I still get that felling of wonder and excitement of taking things apart. First memory of that was at 4 or 5 years old, taking apart my fathers nice gold pocket watch to see how it worked.. Then a memory of the firm Consequences following..
I recently got into working with industrial HVAC and building management controls. It is insane how only in the past 10-15 years are controls moving away from pneumatic/physical control to DDC now. I love this stuff.
I loved this video! I have always loved taking things apart. When I was 5 years old I took my dad's beloved pocket watch apart. It "springen-sproken" everywhere. I had parts everywhere. I was too young to know how to put it back together. He never knew what happened to his pocket watch. It just disappeared. I never told him what happened. It was his favorite watch! He died not knowing what I had done. Some things you never tell about. The first thing I thought about when you got close to the motor - that it was an induction motor. The question I have is, after it "oiled" your table. How in the heck did they keep the motor sealed from the oil? They must have really good O-rings. Thanks again for the discombobulating effort!
I used to work in a aluminum die casting factory. We had a few gas fired pots for smaller hand ladled casting machines that used a similar mechanism to throttle the output of the combustion blowers on the burners. They used a simple thermocouple that sat in the molten aluminum in the pots to provide temperature feedback to the controller. Was always curious how those worked, but never had the chance to open one up. Pretty reliable units overall. Worked there for about six years and never had to change one out. Did change a lot of thermocouples, they lived a hard life. The PLCs on some of those older die cast machines were another story tho...... Antique TI and A-B units.
Mon Dieu!!! Will wonders never cease?!? Finally something to make my morning interesting. So much better than the usual ... (NOT your content, my mornings).
AvE you just have me in stitches from laughing so damn hard!! love your humor and your super inspection intellectual debacle!! but sooooo on the money about tearing apart your christmas presents!!
There's another "cross" drive fastener some may encounter. "Reed and Prince". It resembles a Phillips, but has a 45 degree angle with a sharp point, instead of the 30 degree blunt point found on the Phillips. I used to run into them on the Goodyear deicing boots on older aircraft.
J Ballew how about tri wing fasteners. Planes are full of em. Most people who have to remove them are hoping the inventor of them is somewhere in as much pain as the mechanic who’s Stuck trying to remove a wing full of em!
It’s a split phase motor, white is probably neutral being as its Canakatastanien, connect the capacitor between yellow and red, and alternate the 24 volts from yellow to red for direction, same as any permanent split squirrel cage motor. Single phase motors are generally Not difficult to reverse but unlike 3 phase motors they have to be at rest to change their direction. Great vijayo Ave, love you work.
In case nobody else commented, or i just missed it, the motor looks to be an AC servo motor. They are a two phase motor, often with a shared common (thus,three wires), and have one fixed voltage and frequency winding, and a second winding with a fixed frequency, but variable voltage. They are usually 120 VAC windings. They were very common in applications like this. They allowed fairly precise position control without using a brushed motor, or complex three phase AC servos, before brushless DC motors became common. They are very robust and low maintenance, and only real downside is they require a higher voltage power stage for full range control.
Also used on furnaces that fire kettles. Variable output for variable temperature control in whatever you are heating in the kettle. I worked for awhile in a plant that produced polymers for the paint industry. We had several multi-stage furnaces with these on the kettles.
Recall a Christmas in 78 where I took apart a toy electric car, enjoyed it, and put it back togeather. From that point on, the car ran backwards when turned on. Biggest spanking for a long time.
Thanks for mentioning JIS as a cross head screw standard. This is key if you work on Japanese motorcycles. JIS screw heads will often, but not always, have a small dot or dimple on the head to let you know they are JIS. I don't want to shill on this channel but Vessel (Made in Japan) makes a nice JIS screwdriver. Chapman manufacturing (Made in USA) makes bits for use with 1/4" hex bit ratchets that are JIS. These took me forever to find for my motorcycle kit so that's why I wanted to share where to get them.
There were thousands of those things used for controlling the burners on small to medium size industrial steam boilers. The output was connected to a damper that controlled the volume of air to the combustion chamber and a linkage to a fuel valve which was characterised to allow the correct amount of fuel for clean combustion. A proportional signal from a pressure controller drove the valve and damper to open more when the boiler pressure was below the set point and to close when above set point. These were pretty much bullet proof,and never caused any problem. Now the burner electrics that drove them open and closed for purging and starting were another kettle of fish completely......
fanfuckintastic video..... You really made my Sunday. I sat here drinking beer at 3pm waiting for the Sunday roast, feeling sorry for myself because I'm a fat old retired crippled bastard, and then I clicked on your video... I blew the cap off my colostomy bag laughing... and still learned a lot! I didn't know you could run a 3 phase motor like that... Thank you so much AvE for turning a shit day into 'another day in the shop with the lads'. I'm going to watch it again now... never done that with anything that didn't have at least one donkey in it! Cheers bud...
None of this stuff makes sense to me, but I enjoy the videos, and more so enjoy FEELING like I've learned something. I DID, however, learn what Cunningham's law is tonight -- so for that I thank you.
My God man! I watch your videos to learn what I have not learned yet... I am not an electromaniac of any sorts and all I got out of this vigao was mea mwamwa mwa mawaa.? Love your crack pot humor and intellect. I guess that's what I subscribed to. Keep up the potentially good work. Still trying to figure out your Canadia algorithms. You are my favorite channel!
The buna-n reminded me of a real interesting book called Skunk Works: A Personal Memoir of My Years at Lockheed by Ben Rich. In there he mentions rubber used in very high altitude spy planes falling apart quickly. They found that ozone was destroying it. Even though they were up near space and the air pressure was very low, the highly reactive form of oxygen was causing problems. The book provides some great examples of surprising engineering challenges involved with working in extreme conditions and having to invent solutions along the way. It also has information relating to working on top secret programs with details that I'm surprised isn't still restricted.
I was always wondering what those Philips looking but not quite Philips bits were in my bit box. Now I know they’re either JIS or Posidrive. The more you know. 🌈
We use those on all the burners on the dryers in industrial laundry. They operate the gas valves and baffles for the blowers. We control them with the temperature. Our boilers have a really different type. I'd like to send you one of the old ones to tinker on.
These are used not only to control combustion air but also fuel. Big burners usually have one of these connected with a linkage to a ball valve to modulate natural gas flow into the burner. Often the linkage connects a ball valve and a combustion air vanes from the same motor so they modulate in lock with one another and adjusting the difference in position on the linkage will adjust air:fuel ratio. These things are everywhere.
I can finally contribute to a video! I have one of these Modutrol servos on my natural gas powder curing oven. It does not control the flue however. A thermocouple in the oven sends feedback to a proportional-integral-derivative controller witch then modulates a 4-20ma signal to the Modutrol to control a butterfly gas valve coordinating with the temperature set value. The flue is controlled by exhaust fan speed, witch in turn is controlled by a VFD. Now I know not to crack it open and let the rancid fish oil out!
Ahhh The ol' Honeywell Modutrol!!! We have these on our heating boilers to control both the air and the water level, they can be hooked to anything... It would be sweet if you had a corresponding part with the bridge circuit so they could be paired up to operate. The typical setup is 90 degrees, or 100 degrees, I can't remember for sure. I've got a manual somewhere on my puter for one of those, if you want a copy...
