Ground Hog It’s sad. The man was really something special. Before Mythbusters, he worked at Lucasfilm on sound and visual effects. He was so young, but he did a lot.
Remember gents!! The new common rail fuel systems on your average diesel engines run up to 32,000 pissies!! AND they hold that much pressure even after they are shut off for several hours!! NEVER put your hand down on the gland end of the fuel injection lines until properly relieved!! Here is proof positive!!
There once was man with a high pressure grease gun. He thought playing with it would be great fun. So he aimed at his thingum. And sprayed it with lithium. Now he pees out three holes as if one.
This one remembers me an incident from the Army (no shit there I wus). The M1 Abrams tank uses a grease filled hydraulic cylinder and locking collar to tension the track. It pushes the front idler out against the tons of pressure from the track. The M1 likes to throw its track like a cheap date and one time a tank had its track so badly thrown and fouled with dirt that it needed to be broken to put it back on. Think bow string pulled taunt that weights several tons. First step of that is to release the track tension via the hydraulic tensioner. You do this by loosening a banjo bolt that releases the grease. You can probably see the problem coming. With so much tension on the track, the threads of the bolt gave up and shot out of the cylinder body like a bullet followed by a high speed stream of grease... right into the hand of the soldier turning the wrench... and proceeded inside his lower arm almost to his elbow. They had to flay open his arm to clean all the grease out. It was six months before he RTDed. Kicker is that they'd already come out with an "automatic" tensioner that used a poppet valve (I guess this wasn't the first time someone had been bitten by this problem) but in the 90's they didn't have the money to retrofit the entire tank fleet. I'm sure the cost this one incident alone would have covered the price of fielding them...
"I'm not feeling real good about this......lemme get a stick." At some point in the illustrious history of bumble fuckery, those were some poor slubs last words.
@@stopchangingmynameyoutube only thing is is that it doesn't take much more psi to just do straight water. It's just cheaper, safer, and more efficient to use sand/abrasive
Mr. Ave, we are writing you today to ask you to take this video down immediately: this is copyrighted technology that is very hurtful to our business. Sincerely, the cheese filled hot dog company USA.
This feels like the kind of science akin to early 1900s JBS Haldane who, on subjecting himself to numerous high pressure experiments that kept rupturing his eardrums, remarked: "the drum generally heals up; and if a hole remains in it, although one is somewhat deaf, one can blow tobacco smoke out of the ear in question, which is a social accomplishment." I think you guys would get along.
My old hydraulic teacher always said, never run you hand somewhere you dont want to loose it. He made us run cardboard down in hydraulic systems if we though we had a leak. Rather cut that off than a hand. Never forgot that.
remember reading about engineers on submarines / boats with high pressure steam, use a broom handle to look for leaks, if it cuts the handle in two, you found your leak. never use your hands or ear for obvious reasons.
That was 101 along with screwdrivers are not levers and spanners are not hammers. . .That was taught in the first week induction when I did my Ag mechs fluid injection under pressure is NO joke and can lead to permanent disability or death. Cardboard, paper anything other than your body parts.
@@denisohbrien I heard the same thing from a welding instructor who used to be in the Navy how they would go looking for steam leaks with a 2x4. And one guy who didn't listen and swept his hand across a leak got four fingers cut off. High pressure fluids are no joke.
The problem there is this is something you absolutely don't want to do, cause you will have a bad day. Screwdrivers are descent prybars, and anything that's heavy is a decent hammer, worst case you mess up the tool or the workpiece, not flirting with amputation or death.
@@will3835 Harsh lesson, but a reminder and case study for all who follow, never worked with high pressure steam, other than steam engines and even 100 psi out of a pin prick hole is no joke.
I just started in the hydraulic field as a hose wrangler. One thing that they drove home harder than anything was to never look for a leak with your hand and if you got injected to immediately go to the hospital and tell them you have been hydraulic injected.
Thanks for putting this and the last video out. I had no idea about high pressure injection injuries and it led me down a trail of reading case studies and seeing horrible before and after injury photos. Paint solvents are absolutely horrific!
You don't even need them injected for them to have absolutely awful side effects, I had some sprayed in my eye at an industrial paint company (I was only an equipment technician, just unlucky) and I have not seen through that eye the same way since.
Joseph B yeah, the hydraulic lathe chucks at work have taken a few fingers, guy at work was trying load a large slug of raw stock and closed it with his hand in the way, lost 2 fingers and they couldn’t re attach it. Lost 2 fingers and lost motion in his hand at just 22 years old.
I'm used to leaky hydraulic adapters while working as a helicopter maintenance enigneer. from now on i'm refusing to work with the leaky connectors that constantly need you to wrap your hands round them to get em to not leak. whilst at 3000psi's. Mangements job to get em fixed. Thanks AvE.
Definitely, at the end of the day, you are just a number, if you are injured, your employer will replace you before you hit the floor. No job is worth your life, your body parts or your health.
My high school friend's dad was a helicopter mechanic. He was blind in one eye from a diesel injector incident. (He switched careers after that. Works on computers now)
Knew a guy a long time ago that talked about working on subs... With the high water pressure you don't reach around a blind spot so to speak to check for leaks. You take a piece of paper or something like that and move it around, and well if the paper comes back in one piece, no leak there. If you were to run your hand around to check for leaks, you will come back with a few fingers missing.
Ive heard the same story for working on navy ships with high pressure steam systems. If theres a leak, nobody in the room can move until they find it, and they do that by waving a broom around. They've found the leak when the handle suddenly becomes shorter. Actually read one story, on the interwebs mind so take it with a grain of salt, that somebody decided they didnt wanna wait around for the leak to be found, and went for the door. He found the leak, and it disemboweled him.
I've seen injection injuries in the paint industry over grabbing a leaking hose fitting on an airless sprayer to avoid a mess. That's only 3000-5000 psi too.
Part of the compressed air safety training for SCUBA warns of air embolism (potentially dead in seconds) from injection. That's just standard air at up to 3500 psi (or 232 bar in Europe).
@@Murph9000 gasses have the nasty habit of expanding once let loose. Just the volume of air in a fill hose from the compressor to the tank was enough to break windows in the shack where the compressor was...
You could try looking at the method Jörg Sprave uses to actuate the valves for his homemade airguns. Might be easier and way cheaper than a solenoid valve.
Nice idea to test the pressure loss across the valve. I think it would be probably easier to add some kind of pressure accumulator thingy on the pump side of the system than try to optimize the valve operation. There is so little of energy stored in to the system on pump side that no matter how fast it's going to open pressure goes down still quite a much before it's flowing freely. Or then use some kind of burst disc design to get really fast opening for valve. And good to remember that adding the pressure accumulator thingy makes this already safe experiment even better so probably good idea to get even longer stick or maybe even rope for opening of the valve :D
Ex Royal Navy here, this reminds me of an incident 30yr ago. A seaman encountered a high pressure steam leak on a sub. As you know, steam is invisible. It removed his head as he passed by. Say no more.
Careful with the 3D printer nozzles, there is a ring of thin material holding the tip on, which I would expect will fail when you try this test with it. Hard to describe, but it's where the end of the 2mm bore stops, before the outside of the nozzle. It's thinner than you might think. Safety McGlarses are a good idea.
A man with a job in hydraulic Had a method thought somewhat bucolic when he needed to seek for that pinhole leak he would dangle in front his left finger
In the case of my job working in the dirt with excavators, a leaky hydraulic system is easy to diagnose....look for the blown up line that dumped 5gal of fluid on the ground. Or for pin holes on hard lines look for the clean spot where the pin hole cleaned the dirt/dust away. At least that's about 50% of the leaks I have to deal with the other 50% is just bad seals on a cylinder or hydraulic motor. I was told that the old timers used to use a straw broom to check for leaks on high pressure steam system. It gave them a 4ft reach advantage and the straw was easily cut by the steam so you could find even small pin holes.
@@jonniessink1 One of the dudes I work with is former navy. One day on the ship they had an unconfirmed report of a steam leak, and one of the lower ranks with something to prove decided he wanted to save the day. As he was headed towards the area where the leak was reported, he forgot to grab something to swing ahead of him, and confirmed the report with top half of his head. Coroner's report concluded he was dead before he hit the floor.
The hydraulic company I work for did testing and found that at up to 2 metres away a pin hole in a hose at 3000psi can still penetrate human skin... and if you have 6 hours to get the injection cleaned out before you get body parts chopped off
That over-molding plastic is likely cross-linked with some kind of multi-functional monomer. Linking the polymer chains together increases the chemical resistance significantly. The resin might swell a little, but if it's really cross-linked it's not going to suffer at all. (I worked in acrylic resin production for better part of a decade off and on. Ask me how I know cross-linked resins won't suffer solvents for removal...)
@@aristotles-lantern Imma hazard a guess and say unlucky man got some shmoo on his hands and it ain't come off but 3 days later when enough skin flakes built up to let the resin free
When I was in the army (1980s), they gave us some of our inoculations via hydraulic injection. It worked well, unless the soldier moved. Then it cut the skin. When I became a painter's apprentice, I learned to not put my dingus in the path of the working end of a paint sprayer, because they work the same way. I am happy to say that I'm inoculated against "stuff", because, and my dingus is intact.
I was in the FDF and I was getting trained as an APC driver and during the training we got some mechanical training too for the APC and once the trainer said that if you see a pipe squirting liquid here, do not put your hand in front of it because it's so high pressure. If my memory serves me right he was pointing to the pipes going to the injectors.
Dude, thank you for finally doing something about this. Not a whole lot of info about injection injuries on TH-cam and they seem so benign at first. Some minor stuff about it but not well covered. Exemplary work
It would make sense that the down flow gauge would be at relatively lower pressure. If I paid attention during fluid dynamics right, the danger from a pressure line leak is from the ungodly high velocity out of a pinhole leak. Teacher said it's basically a constant liquid bullet. Pressure washers and water jets use high pressure to convert to a high velocity stream for work. There's an intrinsic pressure drop converted to velocity. Residual pressure on injeculation side from unoptimized nozzle design. (I'm totally stealing that word at work.)
Yeah, the pressure on the 2nd gauge should stay at 0 as it is the atmospheric side of the thing. Velocity of shmoo will increase, pressure decreases to about nothing
Yeah, you are correct. At the nozzle orifice the pressure is atmospheric. The pressure inside the nozzle becomes fluid velocity at the nozzle outlet. That was counterintuitive for me, but the conservation of energy says it's just fine.
You guys are all wrong. The second gauge is upstream from the nozzle. In the absence of the valve almost all pressure drop should occur at the nozzle and the gauges should match.
When the valve opens, the upstream gauge sees dynamic flow too. The only difference between the two gauges when the valve is open is their positions relative to it.
This is a very interesting video and subject matter. As a diesel engine mechanic, you have the same danger with the diesel fuel injection system. The older and all mechanical injection engines usually have in the neighborhood of around 4,000 psi or more coming out of the injection pump to "pop open" the pintal valve inside the fuel injectors. The newer Electronic High Pressure Common Rail injection engines have around 7,000psi of fuel pressure just at Idle speeds, and as much as 26,000psi at wide open throttle and torque load. Some modified racing diesel engines can have 30,000psi of fuel pressure feeding the injectors. One small pin hole or crack in any of the fuel lines or fittings can be a very dangerous situation. Great video Uncle Bumble!!
AvE, firstly thank you for the years of entertainment. It’s been a pleasure watching your antics. I also wanted to take a moment and thank you on a very deep level for this video. A recent industrial accident at my place of work occurred where an individual put his hand in the line of fire. He grabbed a hydraulic hose pressurized to 13,000 psi. The fitting broke and gave him a seemingly minor hand injury. My group runs the day-to-day operation of the plant, but doubles as the first responders. I was not part of the team that met and evaluated this guy. That team saw only a small hole and a tiny drop of blood. The individual felt fine, and was going to be returned to work. Thanks to watching this video two years ago, I immediately advocated for an ambulance and the quick transport of this man to a hospital. He has lost slight movement at the end of his thumb, but will otherwise heal. The doctors said he would have lost his hand if we hadn’t acted as quickly as we did. I thank you for the education, as I’m sure the injured man does, unknowingly.
Thanks to Well, There's Your Problem, a podcast about engineering disasters...with slides, there's a whole new generation of folks who will learn about that reference. 😎👍 I actually found that old video to be more effective than the forklift safety video I had to watch years back that just used animated stick figures. Cringe factor seems to cement things in the ol brain box.
I'm just gonna go ahead and say, as a younger man I put myself in harm's way a lot.....I came to this conclusion after watching this video. I even took my supervisor to the emergency room once for the same mistake I was making on a daily basis and just never got hurt. Thank you for putting this up so the younger of us have good information to stay healthy.
It seems the budget troll had its way with the meat target, even had to get a replacement for the new-and-improved high-tech fleece schmoo stop... Wait, no. Wrong channel.
Doesn't pressure a result from the restriction to flow. The second gauge will only be measuring the restrictions down steam. By opening the valve pressure gets converted to dynamic energy.
AVE, you made the one channel that is always fun to watch and educational...even if the subject is serious. Thank you for you being you and sharing it.
Can you also get hold of some Fluid Injection Resistant Gloves and test them at their rating. A quick look showed some rated to 10,150 PSI for instance.
That's why the fuel oil calibration fluid for testing and calibrating diesel fuel systems mimics the viscosity of diesel but lacks the toxicity of the real thing, should you happen to try feel for the spray. The injury is less with the calibration fluid, although still a problem. Getting diesel into soft tissue is really bad, they say the flesh just rots where it went in.
AvE, companies should hire you to produce safety videos, HR would hate it but people would actually pay attention. So many people fail to understand the dangers of equipment. Thank you for your videos man, you are a great fellow, wish you were my neighbor! Hello from Alabama!
Dear Ave, i've been watching your videos for a long time and wanted to thank you because I have learned a lot,I didnt have a formal educaction and in each of your videos I learn something. I make large metal sculptures and I've used many of the things I learned from you in the structures and know which material,bearing or gear to use. Farewell from Uruguay (yes it is a real country) and keep up the good content. Gracias!!
Once upon a time, when I was a younger man, I was an aircraft mechanic in the military. Our planes ran a 3,000 psi hydraulic system to actuate brakes, landing gear, and flight control surfaces. We all had to watch safety videos on hydraulic systems every year. Some of the images from those videos still stick with me today. Everything about a hydraulic system can and will maim or kill you if you make a mistake. It only takes a moment to fuck up and get killed.
The first ten seconds of this video I feel like a magical language was spoken that I've yet to comprehend but as it went on my brain descended into its madness and I grasped what he was saying
Once it's out, you can never get the ectospooge back in the nut, unfortunately. Y'know why it's called almond milk, right?- Nobody'd buy anything called "nut juice"
You know that feeling of danger you get in the back of your head and in your stomach when you're watching something dangerous? This video is a great way to feel it.
It only took about 8 years and one split-rim tire for me to learn to not involve my person with anything on the the receiving end of a pressurized fitting. Seeing this some 50 years after the fact is just as terrifying as those days after the tire. My sphincter has muscle memory. Thanks for sharing!
zukomonitor a burst disc would be a better idea most likely. They’re manufactured to burst wide open at a given pressure so it would hopefully be quick enough with a wide enough opening to let sufficient flow through.
Hand to God: I have never heard anyone use THOSE words about power tools, and would've never thought such filthy utterances would come from a Canadian! I am in awe, sir. Your shit-talking skills are unmatched.
I always thought the danger from fluid injections was less the initial damage from the pressure jet but the aftermath of some chemical rotting your flesh off because its been injected deep into the tissue.
This is super interesting. I watch all your videos and I hope for the love of God your being as safe as possible while doing this. I think I speak for all of us when I say I want to keep seeing your videos dude. Keep it real.
Knew a guy who was running turpentine through an airless paint sprayer to clean it when he stumbled and brushed the turpentine stream across his forearm. He went to the doc about 12 hours later when his arm swelled up twice its size and wound up with gas gangrene. After several weeks of touch and go including long draining incisions from wrist to elbow they saved his arm and life, but just barely. Good advice here to be careful when operating high pressure equipment and get immediate medical care in case of high pressure injury. Thanks. Jess
@@92powerdiesel61 more than likely his name. Ave puts his name on most of his tools and you'll notice it was covered with tape next shot. I etch stolen from satchmo on all my stuff. Makes it really easy to know whose it is :)
having worked with and around injectors, superheated steam, hydraulics, compressed air, electricity and the humble hand actuated grease gun, I have always had a healthy respect for pressure. (beaten into my skull by sucessive supervisors early in my career) However this video really rams it home. If I was training apprentices this would be mandatory watching. My son works with me some times. Making him watch it. Good Stuff!! That milwacky is impressive
Yeah, we had a guy at work working on some equipment with a hydraulic jack. And the hose broke where his hand was. He spent a good while in the hospital while they got it cleaned and scrapped out. He kept the the hand, but they wasn't sure for while.
I love AvEs videos. Saw this one the day it was released. Recently I bought a QuickJack and they warn against this very thing in the safety portion of the manual. I just chuckled to myself when I read it; "hehehe. The confuser."
That's true, but the second gauge is right at the discharge. At that point the pressure will be nearly atmospheric (0 psig) anyway because the fluid is freely open to atmosphere. The friction of the grease blasting down the pipe is the only resistance and it is still enough to back up ~1000 psi.
I've seen what happens at 2,400 psi when a hydraulic hose bursts, took the window of a portable yarder four feet away... then I saw what 10,000 psi air does to a broom we used to sweep the floor and find hidden air leaks. Cut the damn brissles off slick as could be. You learn respect for high pressure stuff damn quick or you missing body parts.
10K psi air? holy crap! what kind of machine/process uses such huge pressure of a compressible fluid? a tire bursting with 100psi is scary and lethal enough.
@@teresashinkansen9402 it was the high side of a cascade air system. It was part of a fluid purge system. At those pressures it's getting into fluid dynamics over gaseous dynamics. You also had the refrigeration effect on all your valving and regulators. The plumbing was small sized stuff, all the fitting were welded or brazed, it was impressive. The high pressure flasks were at 660 atmospheres of pressure...
@@krissfemmpaws1029 That's so crazy, i thought most high pressure pneumatic systems topped at around 4k psi. Thanks for the explanation was very interesting.
What would happen if you had a clog in the line that was bullet shaped? Would the grease/oil blast it apart before "muzzle" exit, or would it continue out as one piece? I would think that the clog or even the shotgunned pieces of clog would have to do quite a bit of damage. With a potato cannon when I pressure it up to 120 psi, the tennis ball I use is almost too fast to see as it exits the muzzle.
I had a bike handlebar that went all dissolved on me. I ended up cutting it off my bike with my waterjet channel titanium beer opener and I stuck it to a Stop Sign. I thought of you as I was doing it.
This feels like "Mythbusters uncensored and unsupervised"
@Ground Hog Damm you just ruined my day.
Ground Hog It’s sad. The man was really something special. Before Mythbusters, he worked at Lucasfilm on sound and visual effects. He was so young, but he did a lot.
I'd watch that
One thing for sure we know it's real.
Marty104 🤣 oh so true.
That censoring isn’t stopping us from seeing the crimes against engineering that you are committing.
What's the censoring all about?
I am also very curious. Maybe engraved his name?
Wonders of the world
So you don't know either?
@@crustybuns9344
Looked like he might have been using vice grips... you can’t show that kind of violence on TH-cam
Imagine if AvE had cinematography skills to match his commentary. Channel would be unstoppable
This channel with Wintergatan's cinematography would be amazing.
(Fortnine)
Y’all don’t realize that’s what makes his videos so great
The video shoot style being slightly off makes it all the better. Something like the old series of trailer park boys.
Something something TOT
Remember gents!! The new common rail fuel systems on your average diesel engines run up to 32,000 pissies!! AND they hold that much pressure even after they are shut off for several hours!! NEVER put your hand down on the gland end of the fuel injection lines until properly relieved!! Here is proof positive!!
It’s a shame that this kind of information isn’t stamped on the valve cover. Because you’re totally right, 32K PSI will drop you 6 feet under
There once was man with a high pressure grease gun.
He thought playing with it would be great fun.
So he aimed at his thingum.
And sprayed it with lithium.
Now he pees out three holes as if one.
Fucking ow. Great poem.
1000 Ways to Die
"Framing you Fak!" - sponsored by Robertson Screws and Safety Squints
You beat me to it...
When you don't want it taken apart, use Robertson Screws!
Got to admit, not bad camera work for a blind guy.
When AVE is scared, I’m effing terrified.
This one remembers me an incident from the Army (no shit there I wus). The M1 Abrams tank uses a grease filled hydraulic cylinder and locking collar to tension the track. It pushes the front idler out against the tons of pressure from the track. The M1 likes to throw its track like a cheap date and one time a tank had its track so badly thrown and fouled with dirt that it needed to be broken to put it back on. Think bow string pulled taunt that weights several tons.
First step of that is to release the track tension via the hydraulic tensioner. You do this by loosening a banjo bolt that releases the grease. You can probably see the problem coming. With so much tension on the track, the threads of the bolt gave up and shot out of the cylinder body like a bullet followed by a high speed stream of grease... right into the hand of the soldier turning the wrench... and proceeded inside his lower arm almost to his elbow. They had to flay open his arm to clean all the grease out. It was six months before he RTDed.
Kicker is that they'd already come out with an "automatic" tensioner that used a poppet valve (I guess this wasn't the first time someone had been bitten by this problem) but in the 90's they didn't have the money to retrofit the entire tank fleet. I'm sure the cost this one incident alone would have covered the price of fielding them...
"I'm not feeling real good about this......lemme get a stick." At some point in the illustrious history of bumble fuckery, those were some poor slubs last words.
Still a world of difference between that and "let me feel it up to check if it's leaking".
Truly the words of a man who has safety in mind.
Rule #3 - When in doubt poke it with a stick.
And still a sight better than, "Huh it ain't working right, lemme stick my head in it!"
As my wife says no matter how hi tech it gets it boils down to using a stick.😂
Anyone who doesn't take pressurized hydraulic systems seriously clearly hasn't seen what a waterjet will do to steel.
Garnet is actually used for cutting in water jet applications, it’s not just a straight jet of water
@@stopchangingmynameyoutube only thing is is that it doesn't take much more psi to just do straight water. It's just cheaper, safer, and more efficient to use sand/abrasive
Or what they do to a guys leg when it blows off the mounts
Mr. Ave, we are writing you today to ask you to take this video down immediately: this is copyrighted technology that is very hurtful to our business. Sincerely, the cheese filled hot dog company USA.
Oh no first we have big oil now we have big hot dog trying to shut us down..... VIVA LA RESISTANCE..... And hot dogs
So this is how they do it... pure genius.
This feels like the kind of science akin to early 1900s JBS Haldane who, on subjecting himself to numerous high pressure experiments that kept rupturing his eardrums, remarked: "the drum generally heals up; and if a hole remains in it, although one is somewhat deaf, one can blow tobacco smoke out of the ear in question, which is a social accomplishment."
I think you guys would get along.
My old hydraulic teacher always said, never run you hand somewhere you dont want to loose it. He made us run cardboard down in hydraulic systems if we though we had a leak. Rather cut that off than a hand. Never forgot that.
remember reading about engineers on submarines / boats with high pressure steam, use a broom handle to look for leaks, if it cuts the handle in two, you found your leak. never use your hands or ear for obvious reasons.
That was 101 along with screwdrivers are not levers and spanners are not hammers. . .That was taught in the first week induction when I did my Ag mechs fluid injection under pressure is NO joke and can lead to permanent disability or death.
Cardboard, paper anything other than your body parts.
@@denisohbrien I heard the same thing from a welding instructor who used to be in the Navy how they would go looking for steam leaks with a 2x4. And one guy who didn't listen and swept his hand across a leak got four fingers cut off. High pressure fluids are no joke.
The problem there is this is something you absolutely don't want to do, cause you will have a bad day. Screwdrivers are descent prybars, and anything that's heavy is a decent hammer, worst case you mess up the tool or the workpiece, not flirting with amputation or death.
@@will3835 Harsh lesson, but a reminder and case study for all who follow, never worked with high pressure steam, other than steam engines and even 100 psi out of a pin prick hole is no joke.
I just started in the hydraulic field as a hose wrangler. One thing that they drove home harder than anything was to never look for a leak with your hand and if you got injected to immediately go to the hospital and tell them you have been hydraulic injected.
i am now thoroughly terrified of hydraulic lines, thank you
Thanks for putting this and the last video out. I had no idea about high pressure injection injuries and it led me down a trail of reading case studies and seeing horrible before and after injury photos. Paint solvents are absolutely horrific!
You don't even need them injected for them to have absolutely awful side effects, I had some sprayed in my eye at an industrial paint company (I was only an equipment technician, just unlucky) and I have not seen through that eye the same way since.
I used to laugh at safety. Now they call me, Three Finger Joe
Shaking hands with danger🎶🎶
"70's safety music"
@@skm9420 1980
Saw a guy once testing a diesel fuel injector...popped him mid palm, 22,000 psi of atomized diesel fuel...no bueno...lost function of his entire hand.
It's crazy how fast one can lose limbs or life in a blink of an eye.
Joseph B yeah, the hydraulic lathe chucks at work have taken a few fingers, guy at work was trying load a large slug of raw stock and closed it with his hand in the way, lost 2 fingers and they couldn’t re attach it. Lost 2 fingers and lost motion in his hand at just 22 years old.
When AvE makes a safety video about things that can go "ouch", you know we're dealing with SERIOUS shit ._.
"No one cared who I was until I put the schmoo all over the workbench."
I'm used to leaky hydraulic adapters while working as a helicopter maintenance enigneer. from now on i'm refusing to work with the leaky connectors that constantly need you to wrap your hands round them to get em to not leak. whilst at 3000psi's. Mangements job to get em fixed. Thanks AvE.
For sure. Entering aviation maintenance now and I’m glad I heard it now before it was too late
Definitely, at the end of the day, you are just a number, if you are injured, your employer will replace you before you hit the floor. No job is worth your life, your body parts or your health.
Yes, we don't need to lose another good helicopter maintenance enigneer!
My high school friend's dad was a helicopter mechanic. He was blind in one eye from a diesel injector incident. (He switched careers after that. Works on computers now)
BestFleet Inc. - so now he just has to worry about high-pressure code injection accidents...
Knew a guy a long time ago that talked about working on subs... With the high water pressure you don't reach around a blind spot so to speak to check for leaks. You take a piece of paper or something like that and move it around, and well if the paper comes back in one piece, no leak there.
If you were to run your hand around to check for leaks, you will come back with a few fingers missing.
Ive heard the same story for working on navy ships with high pressure steam systems. If theres a leak, nobody in the room can move until they find it, and they do that by waving a broom around. They've found the leak when the handle suddenly becomes shorter.
Actually read one story, on the interwebs mind so take it with a grain of salt, that somebody decided they didnt wanna wait around for the leak to be found, and went for the door. He found the leak, and it disemboweled him.
“Sometimes dangerous things can happen while youre working if you’re preoccupied, tired or hungover”
So hilarious. The "budget troll"
"I don't feel safe... Let me grab a stick" - Ave
I've seen injection injuries in the paint industry over grabbing a leaking hose fitting on an airless sprayer to avoid a mess. That's only 3000-5000 psi too.
Part of the compressed air safety training for SCUBA warns of air embolism (potentially dead in seconds) from injection. That's just standard air at up to 3500 psi (or 232 bar in Europe).
@@Murph9000 gasses have the nasty habit of expanding once let loose.
Just the volume of air in a fill hose from the compressor to the tank was enough to break windows in the shack where the compressor was...
You could try looking at the method Jörg Sprave uses to actuate the valves for his homemade airguns. Might be easier and way cheaper than a solenoid valve.
Good thinking.
Commenting so this gets seen
But don't forget to give him a reach around
Hmm. Been considering this on and off for a while. Thanks for breadcrumb.
Rat trap.
Just do as the Hydraulic Press Channel does, use string lol Wrap a few wraps worth around the valve handle and give her a yank.
I could totally hear James Doohan exclaiming:
"I'M CHOOCHIN' HER ALL I CHOTCH, CAPTAIN!!!!!"
Ha!
Nice idea to test the pressure loss across the valve. I think it would be probably easier to add some kind of pressure accumulator thingy on the pump side of the system than try to optimize the valve operation. There is so little of energy stored in to the system on pump side that no matter how fast it's going to open pressure goes down still quite a much before it's flowing freely. Or then use some kind of burst disc design to get really fast opening for valve.
And good to remember that adding the pressure accumulator thingy makes this already safe experiment even better so probably good idea to get even longer stick or maybe even rope for opening of the valve :D
Crossover episode when?
Juu ja torille
Jesus
I'm reading it in your voice man
This 🌭 is very angry and can attack any moment
Ex Royal Navy here, this reminds me of an incident 30yr ago. A seaman encountered a high pressure steam leak on a sub. As you know, steam is invisible. It removed his head as he passed by. Say no more.
Same at steelworks, just at waist height
Careful with the 3D printer nozzles, there is a ring of thin material holding the tip on, which I would expect will fail when you try this test with it. Hard to describe, but it's where the end of the 2mm bore stops, before the outside of the nozzle. It's thinner than you might think. Safety McGlarses are a good idea.
Might be best if AvE looks at getting an orifice suited for a waterjet nozzle instead of risking himself over one designed for a toy?!
AvE: Spends huge amounts of time and effort informing the community about the danger of high pressure lubricant injection
also AvE: 12:47
AvE is truly the smartest dumbfuck I've yet encountered.
When looking for leaks in Hydraulics
The method, it's quite often said,
Is to look with a sheet of paper
otherwise you could end up dead.
@Razorback73 We used to use a broom as a leak detector in the steam electric generating stations.
A man with a job in hydraulic
Had a method thought somewhat bucolic
when he needed to seek
for that pinhole leak
he would dangle in front his left finger
In the case of my job working in the dirt with excavators, a leaky hydraulic system is easy to diagnose....look for the blown up line that dumped 5gal of fluid on the ground. Or for pin holes on hard lines look for the clean spot where the pin hole cleaned the dirt/dust away. At least that's about 50% of the leaks I have to deal with the other 50% is just bad seals on a cylinder or hydraulic motor. I was told that the old timers used to use a straw broom to check for leaks on high pressure steam system. It gave them a 4ft reach advantage and the straw was easily cut by the steam so you could find even small pin holes.
@@jonniessink1 One of the dudes I work with is former navy. One day on the ship they had an unconfirmed report of a steam leak, and one of the lower ranks with something to prove decided he wanted to save the day. As he was headed towards the area where the leak was reported, he forgot to grab something to swing ahead of him, and confirmed the report with top half of his head. Coroner's report concluded he was dead before he hit the floor.
@@dustinbrueggemann1875 damn thats fucking scary
The hydraulic company I work for did testing and found that at up to 2 metres away a pin hole in a hose at 3000psi can still penetrate human skin... and if you have 6 hours to get the injection cleaned out before you get body parts chopped off
Dang,,, that sounds really bad. !!!
whoa.
Faakk
Eh 6hours seems like plenty of time no big deal
Awesome thought to have in my head when I'm using the wood splitter....
That over-molding plastic is likely cross-linked with some kind of multi-functional monomer. Linking the polymer chains together increases the chemical resistance significantly. The resin might swell a little, but if it's really cross-linked it's not going to suffer at all. (I worked in acrylic resin production for better part of a decade off and on. Ask me how I know cross-linked resins won't suffer solvents for removal...)
how do you know cross-linked resins won't suffer solvents for removal...?
@@aristotles-lantern Imma hazard a guess and say unlucky man got some shmoo on his hands and it ain't come off but 3 days later when enough skin flakes built up to let the resin free
@@Skyliner_369 alternately, misery whisky and a belt sander.
@@svnhddbst8968 I was thinking media blaster with ceramic shot.
@@ningen1980 I was thinking about tits
When I was in the army (1980s), they gave us some of our inoculations via hydraulic injection. It worked well, unless the soldier moved. Then it cut the skin. When I became a painter's apprentice, I learned to not put my dingus in the path of the working end of a paint sprayer, because they work the same way. I am happy to say that I'm inoculated against "stuff", because, and my dingus is intact.
I was in the FDF and I was getting trained as an APC driver and during the training we got some mechanical training too for the APC and once the trainer said that if you see a pipe squirting liquid here, do not put your hand in front of it because it's so high pressure. If my memory serves me right he was pointing to the pipes going to the injectors.
Dude, thank you for finally doing something about this. Not a whole lot of info about injection injuries on TH-cam and they seem so benign at first. Some minor stuff about it but not well covered. Exemplary work
It would make sense that the down flow gauge would be at relatively lower pressure. If I paid attention during fluid dynamics right, the danger from a pressure line leak is from the ungodly high velocity out of a pinhole leak. Teacher said it's basically a constant liquid bullet. Pressure washers and water jets use high pressure to convert to a high velocity stream for work. There's an intrinsic pressure drop converted to velocity. Residual pressure on injeculation side from unoptimized nozzle design. (I'm totally stealing that word at work.)
Yeah, the pressure on the 2nd gauge should stay at 0 as it is the atmospheric side of the thing. Velocity of shmoo will increase, pressure decreases to about nothing
Yeah, you are correct. At the nozzle orifice the pressure is atmospheric. The pressure inside the nozzle becomes fluid velocity at the nozzle outlet. That was counterintuitive for me, but the conservation of energy says it's just fine.
You guys are all wrong. The second gauge is upstream from the nozzle. In the absence of the valve almost all pressure drop should occur at the nozzle and the gauges should match.
When the valve opens, the upstream gauge sees dynamic flow too. The only difference between the two gauges when the valve is open is their positions relative to it.
Two words my guy, Waterjet Cutters
I just showed “Sake hands with danger” video to the whole shop about a week ago for our toolbox talk.😁
Caterpillar? :)
That's pretty awesome :)
Most recognizable guitar riff in the workshop!
I was sitting here thinking you talking about japanese men drinking sake on the job or something.
That "Hydraulic Press Channel" pronunciation was on point. 👌🏻
"Shake hands with danger" I watched a video that used that's phrase in a PSA about heavy equipment safety about a week ago
Yeah seen that too :p so old school but everything in it is true
I love that video
This is a very interesting video and subject matter. As a diesel engine mechanic, you have the same danger with the diesel fuel injection system. The older and all mechanical injection engines usually have in the neighborhood of around 4,000 psi or more coming out of the injection pump to "pop open" the pintal valve inside the fuel injectors. The newer Electronic High Pressure Common Rail injection engines have around 7,000psi of fuel pressure just at Idle speeds, and as much as 26,000psi at wide open throttle and torque load. Some modified racing diesel engines can have 30,000psi of fuel pressure feeding the injectors. One small pin hole or crack in any of the fuel lines or fittings can be a very dangerous situation. Great video Uncle Bumble!!
I will never look at my old 6.2 the same again
More places to never stick your dingus, thank you for the warning! So we need a list of safe places to put the dingus. I'll start; Warm apple pie.
Bladeless Dyson fans
Not McDs apple pie, those things are like lava.
AvE, firstly thank you for the years of entertainment. It’s been a pleasure watching your antics. I also wanted to take a moment and thank you on a very deep level for this video. A recent industrial accident at my place of work occurred where an individual put his hand in the line of fire. He grabbed a hydraulic hose pressurized to 13,000 psi. The fitting broke and gave him a seemingly minor hand injury. My group runs the day-to-day operation of the plant, but doubles as the first responders. I was not part of the team that met and evaluated this guy. That team saw only a small hole and a tiny drop of blood. The individual felt fine, and was going to be returned to work. Thanks to watching this video two years ago, I immediately advocated for an ambulance and the quick transport of this man to a hospital. He has lost slight movement at the end of his thumb, but will otherwise heal. The doctors said he would have lost his hand if we hadn’t acted as quickly as we did. I thank you for the education, as I’m sure the injured man does, unknowingly.
I happened to come across this channel in my recommended.. I was hooked in the first 10 seconds of this video
SHAKE HANDS WITH DANGER I thought I was the only one who remember that lol
Thanks to Well, There's Your Problem, a podcast about engineering disasters...with slides, there's a whole new generation of folks who will learn about that reference. 😎👍 I actually found that old video to be more effective than the forklift safety video I had to watch years back that just used animated stick figures. Cringe factor seems to cement things in the ol brain box.
Lmao that was a great video 😂😂
I watched that film in diesel mechanics.
Jeff Nell yessir, JobCorps heavy equipment diesel mechanics myself. Ended up working automotive, but trying to get back to equipment
No I watch the video two days ago at 3:00 in the morning
Thanks. Now I have the Caterpillar Shake Hands with Danger in my recommendations.
This is a nice dose of postmodern cinematography.
I'm just gonna go ahead and say, as a younger man I put myself in harm's way a lot.....I came to this conclusion after watching this video. I even took my supervisor to the emergency room once for the same mistake I was making on a daily basis and just never got hurt. Thank you for putting this up so the younger of us have good information to stay healthy.
It seems the budget troll had its way with the meat target, even had to get a replacement for the new-and-improved high-tech fleece schmoo stop... Wait, no. Wrong channel.
It's easy to get confused when you watch so many professionals
Ah, a man of culture and refinement!
Are you talking about Paul Harrell?
Came to the comments to suggest a pork roast pectoral, ribs, and a bag of oranges....
@@McGyver9 only the best for Paul.
Doesn't pressure a result from the restriction to flow. The second gauge will only be measuring the restrictions down steam. By opening the valve pressure gets converted to dynamic energy.
its sorta of a differential for the pressure, or the instantaneous rate of change in pressure before the valve
@@sidwalker6902 and being poisoned & losing body parts
The soundtrack at the end reminded me of the first time I watched Pop's hidden VHS tape.
Tis a noble gent who volunteers his EOD to be covered in schmoo for the learningment of us all. Thanks UBF!
This is an amazing safety demonstration. It's clenchtacular.
"Never let a good idea get in the way of a bad idea what for havin' a laugh"....AvE
That's my life's motto. 🤪
AVE, you made the one channel that is always fun to watch and educational...even if the subject is serious. Thank you for you being you and sharing it.
Can you also get hold of some Fluid Injection Resistant Gloves and test them at their rating.
A quick look showed some rated to 10,150 PSI for instance.
Again, I love this man’s vocabulary.
That's why the fuel oil calibration fluid for testing and calibrating diesel fuel systems mimics the viscosity of diesel but lacks the toxicity of the real thing, should you happen to try feel for the spray.
The injury is less with the calibration fluid, although still a problem.
Getting diesel into soft tissue is really bad, they say the flesh just rots where it went in.
AvE, companies should hire you to produce safety videos, HR would hate it but people would actually pay attention. So many people fail to understand the dangers of equipment. Thank you for your videos man, you are a great fellow, wish you were my neighbor! Hello from Alabama!
Dear Ave, i've been watching your videos for a long time and wanted to thank you because I have learned a lot,I didnt have a formal educaction and in each of your videos I learn something. I make large metal sculptures and I've used many of the things I learned from you in the structures and know which material,bearing or gear to use. Farewell from Uruguay (yes it is a real country) and keep up the good content. Gracias!!
That's a scarier sight than any movie I've seen in years with the hotdog on end
I used to service paint pumps. The one time I wasn't wearing my glasses, MEK blasted me in the face.
Stay safe, peeps.
Greasy MEK that'll burn the snot out of your sniffer
Once upon a time, when I was a younger man, I was an aircraft mechanic in the military. Our planes ran a 3,000 psi hydraulic system to actuate brakes, landing gear, and flight control surfaces. We all had to watch safety videos on hydraulic systems every year. Some of the images from those videos still stick with me today. Everything about a hydraulic system can and will maim or kill you if you make a mistake. It only takes a moment to fuck up and get killed.
The first ten seconds of this video I feel like a magical language was spoken that I've yet to comprehend but as it went on my brain descended into its madness and I grasped what he was saying
Once it's out, you can never get the ectospooge back in the nut, unfortunately.
Y'know why it's called almond milk, right?- Nobody'd buy anything called "nut juice"
but nut juice and milkies are the same thing
Hot dog should've been in a vise.
You know that feeling of danger you get in the back of your head and in your stomach when you're watching something dangerous? This video is a great way to feel it.
It only took about 8 years and one split-rim tire for me to learn to not involve my person with anything on the the receiving end of a pressurized fitting. Seeing this some 50 years after the fact is just as terrifying as those days after the tire. My sphincter has muscle memory.
Thanks for sharing!
Could an over-pressure foil be a good 'valve' for this. Sudden release a d maybe cheap. Could maybe see what the strength is of that aluminum tape.
GOT IT! Fill the nozzle with solder.. Then melt to release the schmoo...
if that could hold the pressure...or a plug that deformed at a given PSI
zukomonitor a burst disc would be a better idea most likely. They’re manufactured to burst wide open at a given pressure so it would hopefully be quick enough with a wide enough opening to let sufficient flow through.
Hand to God: I have never heard anyone use THOSE words about power tools, and would've never thought such filthy utterances would come from a Canadian! I am in awe, sir. Your shit-talking skills are unmatched.
Videos like this will save kids life's who are just getting into industry, and people who have been working for decades. Good work here!
I always thought the danger from fluid injections was less the initial damage from the pressure jet but the aftermath of some chemical rotting your flesh off because its been injected deep into the tissue.
It mostly is that. If you don't seek immediate medical treatment necrosis sets in fast... And that is no fuckin' good t'all.
He mentioned that in his last hydraulic injection testing vidjeo. Seems like a brown breech shituation from start to finish.
@@OutOfNamesToChoose *Vidjeo
@@MrManBuzz Apologies. I've made the correction
@@MrManBuzz I always thought it was Vajayoo, as in reference to mans favorite schmoo hole.
ToT and AvE in one evening. 😀
This is super interesting. I watch all your videos and I hope for the love of God your being as safe as possible while doing this. I think I speak for all of us when I say I want to keep seeing your videos dude. Keep it real.
Knew a guy who was running turpentine through an airless paint sprayer to clean it when he stumbled and brushed the turpentine stream across his forearm. He went to the doc about 12 hours later when his arm swelled up twice its size and wound up with gas gangrene. After several weeks of touch and go including long draining incisions from wrist to elbow they saved his arm and life, but just barely. Good advice here to be careful when operating high pressure equipment and get immediate medical care in case of high pressure injury. Thanks. Jess
The old shook hands with danger earthmoving equipment vid scares me still
I heard that guitar riff the second I saw the thumbnail. It's a Pavlovian response at this point, I swear.
im troubled by how interested and fulfilled i actually was by watching you shoot high pressure schmoo on camera for me to see...
well, it IS 2020..
Shake hands with danger is without a doubt one of the best safety songs of all time. And best safety video too.
When I hydraulically inject my hotdog, i usually use Astro-glide.
I use ky
11:44
Pixelation of a vaguely recognizable AvE reflection. Crisis averted.
Ah I wondered what he was hiding
What about 1:24?
@@HighTeq I think that's covering the branding on the vise grips.
@@92powerdiesel61 more than likely his name. Ave puts his name on most of his tools and you'll notice it was covered with tape next shot. I etch stolen from satchmo on all my stuff. Makes it really easy to know whose it is :)
@@satchmodog2 Ah.
having worked with and around injectors, superheated steam, hydraulics, compressed air, electricity and the humble hand actuated grease gun, I have always had a healthy respect for pressure. (beaten into my skull by sucessive supervisors early in my career) However this video really rams it home. If I was training apprentices this would be mandatory watching. My son works with me some times. Making him watch it. Good Stuff!! That milwacky is impressive
AvE being edumbacational again! Teaching us to keep our important appendages away from pressurized orifices!
Thanks, brother!!
Yeah, we had a guy at work working on some equipment with a hydraulic jack. And the hose broke where his hand was. He spent a good while in the hospital while they got it cleaned and scrapped out. He kept the the hand, but they wasn't sure for while.
The gauges are for static pressure. The gauge after the valve will never show you anything remotely useful. Fluid dynamics 101
It will tell you if the orifice plugged up and still holds pressure.
@@dorianmorrell2725 wouldnt the first gauge do that?
Love to see different fabrics in front of the dog. T-shirt, denim, flannel, lace underthings. You know, typical work-wear
I love AvEs videos. Saw this one the day it was released. Recently I bought a QuickJack and they warn against this very thing in the safety portion of the manual. I just chuckled to myself when I read it; "hehehe. The confuser."
Ave AND This Old Tony ON THE SAME DAY!! It's not Christmas
I mean I'm partial to ketchup and mustard myself on my dogs but I'm willing to try anything once. Thanks for your cooking tips!
Now I am thinking can a greased gun be used to hydraulic inject sauce into sausage or pies
@@Cheepchipsable we have been doing the same thing for years at the cricket filling watermelons with vodka
This got recommended to me and got dang if your wordsmithing doesn’t bring a tear to me eye.
I just love the way you talk it makes me laugh everytime I watch your videos
The glycerin damped gauge is too slow to show pressure after valve. You should get a common rail sensor and a oscilloscope.
That's true, but the second gauge is right at the discharge. At that point the pressure will be nearly atmospheric (0 psig) anyway because the fluid is freely open to atmosphere. The friction of the grease blasting down the pipe is the only resistance and it is still enough to back up ~1000 psi.
I've seen what happens at 2,400 psi when a hydraulic hose bursts, took the window of a portable yarder four feet away... then I saw what 10,000 psi air does to a broom we used to sweep the floor and find hidden air leaks. Cut the damn brissles off slick as could be. You learn respect for high pressure stuff damn quick or you missing body parts.
10K psi air? holy crap! what kind of machine/process uses such huge pressure of a compressible fluid? a tire bursting with 100psi is scary and lethal enough.
@@teresashinkansen9402 it was the high side of a cascade air system. It was part of a fluid purge system. At those pressures it's getting into fluid dynamics over gaseous dynamics. You also had the refrigeration effect on all your valving and regulators.
The plumbing was small sized stuff, all the fitting were welded or brazed, it was impressive.
The high pressure flasks were at 660 atmospheres of pressure...
@@krissfemmpaws1029 That's so crazy, i thought most high pressure pneumatic systems topped at around 4k psi. Thanks for the explanation was very interesting.
Mans made me laugh 3 times before it hit 45 seconds, you deserve a sub just for that even tho I have no idea what ur channels about
That "I've worked 32 accident free years" sticker looks like it's been on your lunch box a while!
What would happen if you had a clog in the line that was bullet shaped? Would the grease/oil blast it apart before "muzzle" exit, or would it continue out as one piece?
I would think that the clog or even the shotgunned pieces of clog would have to do quite a bit of damage.
With a potato cannon when I pressure it up to 120 psi, the tennis ball I use is almost too fast to see as it exits the muzzle.
I had a bike handlebar that went all dissolved on me. I ended up cutting it off my bike with my waterjet channel titanium beer opener and I stuck it to a Stop Sign. I thought of you as I was doing it.
Look forward to your next research videos on this matter!
You vids help me get through my day at work thank you have a great day
They help me get through the grind too. Have a good 'un!