BOLTR: Hydraulic Vane Pump | Engineering Lego

[@jaxturner7288]

“Nobody’s been fired for buying caterpillar” no probably not... but I sure as hell did get divorced for it real quick!

[@wobblysauce]

The difference is if it is yours or not.

[@jaxturner7288]

wobbly sauce I considered that just a minor detail, she took the farm over it tho.

[@a7i20ci7y]

Divorce is when you get fired and think "Thank you jesus"

[@thomashendricks33]

Marriage is grand, divorce is a hundred grand.

[@jaxturner7288]

Thomas Hendricks divorce is expensive because its worth it.

[@Krunked]

hey AvE -- i just wanna say thank you for all of your content. i am going through a really tough time in my life. and your channel makes me forget about the bs and have a chuckle. i wish i was more like you. thanks for reminding me to take'r'easy.

[@jaxturner7288]

Alex Goresch my advice would be to just be yourself, just the marvel super hero version of you, maybe play with your drone less and you’r girl more. Couldn’t hurt.

[@joshuapotter7372]

One day at a time!

[@Pdro-gw7lu]

Alex Goresch you’re a good person however you are compared to Uncle Bumblefuck or not. Keep yourself going mate, life will always get better either sooner or later. You’ll come out the other side of whatever your current troubles are a better man, whether it currently feels like it or not.

[@Conservator.]

P3dro 2486 Thank you.

[@kdmtrap7268]

I'm guessing your wife is cheating, she looks like a Cheater

[@Teth47]

One time we were filling the loader's hydraulic tank because it's from the '60s and about as watertight as a screen door, and dad raised the bucket while I was filling it to help get the air out of the system. It was when he lowered the bucket that I learned that the loader needed about 3 of the 4.5 gallons I had put in it as the remainder flew out the 2" wide fill port. I reflexively put my hand over the flow, which turned it into a hydraulic oil sprinkler. I threw out that jacket, but hot damn was my hair shiny and smooth.

[@A_Man_In_His_Van]

Lol

[@LilleyAdam]

@James Sloan ATF?

[@infoanorexic]

If you top it out on a cold day, warm it up some first, or do it in two operations. The amount of heat expansion, after you have filled it cold, may earn you an oil soak when things have warmed to operating temperature. I found that out the hard way.

[@jonanderson5137]

I shampooed 3 times and I was still greasy, engaged my big boy brain and used Dawn. Oil baths happen, I keep a spare set of clothes in my vehicle now.

[@ColtaineCrows]

Always fill the tank when all cylinders are retracted, at least as many as possible.

[@AmateurRedneckWorkshop]

That got me all pumped up and I am feeling the pressure.

[@EdsterZ0529]

Would be something if AVE did a tear down on an Automatic transmission and valve body. Would love to see him nerding out on how it works/ the chinsiness of certain items.

[@ianmoore525]

I have a lot of respect for hydraulic systems. Was washing sand ( for use in concrete and road base) almost 30 year ago, got my arm pulled into the conveyor belt as it was going around the bottom drum. Was stuck there ( working alone) for a good 10 mins, stopped belt but the other hyd motor on the system ( was the shaker on a vibrating screen) was going twice as fast, eventually I fell back minus an arm. Ran to the car to call for help, luckily I had a mobile phone which was fairly rare back then.

[@crazyguy32100]

You speak volumes about the raw force of a hydraulic circuit but didn't mention they can be hyper accurate. We have some transfer machines that use hydraulic quills; with high speed volumetric sensors and optical linear scales they will drill, bore and tap holes to .0006".

[@davidrussell8689]

Dead true ! Still remember working with those “Samsomatic “ boring heads on Diedersheim machine tools .

[@Hammerjockeyrepair]

He has actually explained parts of that in a previous video

[@andrewbeveridge9178]

This my favorite type of AvE content. It's likely I'll never work with this type of equipment, but learning about the underlying concepts of both the mechanical and economic end of it is always a nice bit of knowledge.

[@clydeperrine2959]

Couldn't help but notice the "old" Craftsman" 3/4 wrench on your bench. Brought me back to my teenage years working in a Honda/Yamaha shop and using the metric versions. They made quality stuff back then.

[@TunioMir]

You should write a book! I'm sure you have so many stories from working in mines and on oil rigs etc. With your characteristic humor I think it would be a really fun read! You could publish it online straight to amazon (no publisher required), I would definitely buy it!

[@cat637d]

Me as well, I think it would make the NYT best seller list!

[@bigsoss997]

I love the hydraulics series. Ive been working in hydraulics for about 5 years now and I love hearing your take on these pumps.

[@robchemberlin7369]

You, Camerata and ec have taught me more in the last year than I learned in 12 years of public school. A couple of vids from you three when I come in for the evening instead of tv and I go to bed smarter than I was when I woke up. Thank you.

[@robchemberlin7369]

Essential craftsman. I think his name is Scott. Crazy informative.

[@mephInc]

All of our systems (4+ pumps, 4,000psi+) have side stream pumps which filter the shmoo and run it thought a heat exchanger. Also fun side fact: Even "non flammable" hydraulic fluid will most definitely combust and sustain one hell of a flame when atomized and presented 3,000+ degree molten iron. When a little leak turns into a very long night. Oh and, Rexroth for the win.

[@h.e.phillips4002]

I've spent my life doing electrical maintenance in plants. I still learn from you. I hope everyone understands the value of your videos.

[@tubastuff]

Hydraulics are fun. Back in another life, I maintained systems that worked off the Askania Regulator scheme. You could take fractional variations in furnace atmosphere pressure and move a 3 ton damper in response. All you needed was a hydraulic pump. This was back in the day of clamp-galvanometer temperature recorders/controllers. No electronics there either.

[@pleisterman8660]

I worked at a foundry in the Netherlands. We call it Pisbakkenstaal, Something like urinal steel.

[@MakesCents.02]

"fired up the tooth chipper" haha, brilliant!

[@roberthorwat6747]

It's the way he tells 'em🤣🤣🤣🤣🤣🤣🤣🤣

[@DIMTips]

Great explaination. It's great when you don't know something exist and why however, you still get to hear all about it.

[@TDG2654]

13:32 "Pressure equals area times force." So close, yet so far

[@oblivion0077]

Caught me by surprise too. lol

[@mattgies]

Ya know, when I heard that, I thought, "That doesn't sound quite right, but all the right terms are there. Eh, close enough."

[@TDG2654]

@@mattgies "Good enough for the girls I go out with."

[@scottjones7371]

:(

[@mysock351C]

Same style of pump is used in many automotive transmissions. They do provide a lot more flow than a gear rotor pump. The springs on the cam rings are a good bit smaller since they only work up to about 200 PSI. But they are not as reliable if something goes wrong.

[@wayneparris3439]

I love oil powered things. My Bobcat is a great example of what you are conversing about. It has about 40 hp in the diesel that only drives a big ol oil pump, the moving oil then goes to oil motors and cylinders and gets a whole lot of work done from a smallish prime mover. LOVE oil powered stuff!

[@mcdsdaddy]

Great video! I did a repair on a medical air pressure pump similar to this. Only difference is that this pump had carbon vanes. The vanes choudered themselves to death. But I fixed it all and got it back ckooching in no time! Thx for all of your vidjeyos!

[@mikescullin2263]

Dude thank you for putting out almost daily videos recently. They really keep me going.

[@05AcuraRSXtypeS]

Last time I was this early she got pregnant... BTW really enjoying the videos... especially the way you interact with your wee one, she is precious and its awesome..

[@Shoorit]

Did you finish work early and catch her with another man?

[@SimonBastienFiliatrault]

How in the world could post that comment before release date?

[@Conservator.]

Simon Bastien-Filiatrault That’s a secret only Patrions share.

[@gateway8833]

Man, I wish you would have been my instructor when I was learning this, your explanation is so much better.

[@Justin-wm6mi]

I believe the operating temperature of hydraulic fluid/oil is around 135°F and for every 10 degrees above it's operating temp it's fluid life is cut in half.

[@AndySpawn81]

This gives me flashbacks of the good old time I had rebuilding the power steering pump on my Toyota, at 1am...

[@thetriode]

These are used in lots of places, most every car made today probably has a fairly similar pump. Neat setup, as you said super simple truthfully.

[@thetriode]

oh and under 75 bucks? Bargain!

[@thetriode]

The 200R4/700R4 definitely used this style pump variable displacement included. The 4L80E uses a gear type pump and I believe the TH-350 does too. That said, not sure on any of the other stuff but a cursory look at a 6L80E says it uses that pump too. Maybe "most every" was an over broadening of terms but they're certainly not a rare pump in automotive stuff.

[@thetriode]

If you had a pump that wasn't VD you could easily end up with a bunch of power loss as he mentioned. Electric steering assist is IMO in part due to the desire to implement electric cars.

[@larrytaylor2903]

Thanks for making the operating principles so accessible to everyone.

[@mrhalfstep]

I always enjoy your videos and tell my friends about them.( I just tell them with my mouth, though, cause' I don't know which way I need to face to book 'em or send them a Twat or whatever that bird thing is) I took a 2 week training course at the Vickers Hydraulic School and would like to share some things that I was taught there that differ from what you have learned in your own personal experience. That variable pump design is one of the first and doesn't meet the needs of most industrial users any longer. They are very heavy for what they do, weighing almost 180 pounds for a 20 GPM version, if I recall correctly. They are also limited to a max pressure of 1000 psi. That is because it is an unbalanced pump design. Being made from two circles running eccentric to one another, the pressure is always going to be on only one side of the rotor when it is performing work and that exerts a side load on the rotor's axle and its bearings, requiring those parts to be massive at pressures higher than 1000 psi. The Racine company made these pumps and in the larger sizes it was even necessary to add a set of rollers for the outer cam ring to slide on because of its mass in their largest pumps, which are a measly 30 GPM. All designs of vane pumps and motors that we studied had hardened, lapped steel vanes. I have had hundreds of pumps apart and have never seen a resin based material used for the vanes. I see them all the time in pneumatic motors and don't really see how they could withstand the forces generated in a hydraulic system. The intravane that you spoke off is used in "balanced" vane pump designs where the cam ring is elliptical and allows the pressure to build on opposite sides of the rotor, simultaneously, thereby offsetting or "balancing" the load on the axle and its bearings and enabling pressures up to 3000 psi. If that much pressure were applied to the entire vane bottom it would create so much force at the vane tip that the vane and cam ring would both be damaged, so it is only applied to about a third of the surface via the intravane. We were taught that vane pumps only require a light film of oil on the inside to protect them in storage and that they should be jogged several times when starting. The vanes will be slung out of their slots and into contact with the cam ring at approximately 600 rpm and pumping begins at that point. Of course hydraulic vane motors have springs holding the vanes in initial contact to get them spinning, with pressurized oil taking over as the workload increases. Since you are fond of acronyms, I wanted you to know that at the Vickers school the condition that you describe at about 3:40 in your vagao is officially and repeatedly referred to as PSO, as in Pressure Squirting Out. Apparently it's OK to mistakenly believe that pumps pump pressure if you find yourself suddenly dealing with that shit! As much as you seem to know about so many technical subjects ( and women ) I have to assume that you have built a reference library along the way. I can recommend the Vickers( now Eaton) text book that they use in their school, if you are ever in need of more hydraulic reference material. The last edition (5th) can be had for about $35 and the newest for about $85. Keep your youknowwhat in a whatchamacallit.

[@tracylemme1375]

I have rebuilt only 10s of vickers vane pumps and maintained as many systems with these great pumps. They seam to last forever if treated right. The one thing they don’t tolerate is a restricted inlet. They are easy to rebuild , but seldom need it if they are treated right.

[@silveravnt]

Calling Washington state a 3rd world shithole is pretty harsh. I mean Seattle sure but come on.

[@mephInc]

Have you seen your new proposed gun laws? YEEESH

[@SublimatedIce]

​@@mephInc Well if you look at how many people are killed by guns, all of the US is 3rd world. :-(

[@royreynolds108]

@@SublimatedIce We can't afford to have baseball bats restricted or controlled. Come on!

[@mephInc]

@@SublimatedIce Stop watching CNN, get your own brain, and look at the actual statistics. Your 3x as likely to die via ladder than a gun.

[@killstrees]

Yeah, but most of our law enforcement officials aren't enforcing them either.

[@DrewLSsix]

As a mechanic I think it’s interesting that we see all these pump types in cars and light trucks used in very specific applications. Gear pumps for engine oil, cane pumps for automatic transmissions and piston pumps for AC systems. Sometimes you see one where you don’t expect but the applications are pretty standard at this point.

[@RBurwell]

My variable vein pump went off in my hand one. Schmoo everywhere.

[@waylontmccann]

You forgot to give it a chooch of air from the back end, hose it down with WD, and give it a whack with the retention stick.

[@elpenguinofeo1072]

Really should be sleeping. Gotta run from one end of Tennessee to the other with an oversize load in the morning. But, BOLTR!

[@chrismuro1364]

Would be easier if you drove

[@matttaylor6500]

@@chrismuro1364 dead

[@kdowning2715]

I’m a mass surface finisher and one of my main contracts is deburring in a vibratory finishing machine the little circular part the vanes sit in. The part I finish is for use in transmissions, though.

[@jisu222]

Sitting at work, I’m an industrial mechanic, not doing shit on 3rd shift loving the video. Thanks. 👍🏻

[@jason-ge5nr]

I appreciate everything you will teach on the hydraulics.

[@richard9679]

Pressure is force DIVIDED by area. The mind is skukum, but the mouth boggles.

[@moeshouse575]

i have done a lot of hydraulic pumps ect. i love the way you explain how they work.

[@bananasoychoo]

Like an air motor but the fluid is oil. Neat!

[@oceanceaser44]

My vane pump on my boat just went. Cool to know how it worked when it did.

[@amd2800barton]

I love these pump videos. As a chemical enginerd, is great to understand what's going on inside so I know why I should spec one vs another. To many, it seems like rotating equipment is just a black box of (fluid conditions in) + energy = (desired fluid conditions out)

[@pjoneal12]

P = F / A I'm sure you know, I just didn't want what you said getting stuck in peoples head. Making a perfect video with this much knowledge isn't easy. Thank you for all that you've given us!

[@logmegadeth72]

13:32 Surprised he didn't correct himself here, pressure is force over unit area! Not area times force. I think he meant force is pressure times area.

[@jonathanmiramontes9541]

I caught that too haha.

[@brianyoung9014]

Its the same either way.

[@lmdmt]

Idk much about hydraulic pumps but I love watching him take them apart

[@goose300183]

8:55 look at the nameplate: 'XIN FEI MACHINGY. CO.,LTD' Xin Fei, making quality machingy since '78

[@mattgies]

I thought "Chingy" was a slur, but I guess they're taking it back?

[@goose300183]

@@mattgies lol What's up ma chingy?

[@cannaroe1213]

So, if i'm getting this right, the gear pump + blow-off valve works, but it's dumb because the blow-off valve like a short-circuit will create so much heat it'll just vaporise the oil. But the vane pump will sense the pressure it produces and lower it's pressure if it gets too high, keeping the pressure in a kind of safe range? Pretty cool!

[@AlexKrieger71]

Someone needs to send AVE an electric motor from a Tesla!

[@mcplutt]

they are too big

[@o2wow]

Thanks for the vacations reference, it's just crazy as F' that people would welcome back human diseases like polio.

[@GeorgeDolbier]

What do the bahamas and polio have in common?

[@InsideAlan]

@@GeorgeDolbier rubber rings.

[@orcoastgreenman]

Where is Polio occurring in the western world? Among the vaccinated OR unvaccinated? Nowhere that I’ve seen. There IS a paralytic condition occurring, but NOT one that the Polio, or ANY OTHER of the 76 vaccines now on the schedule for a child born today, will protect against. Maybe we need to create one, and put it on the schedule without any proper controlled safety testing, as that seems to be the standard for liability free vaccines, and then in 10 years medicine will realize our kids need 3-5 “booster shots” up to age 18, to maintain “antibody immunity.” The last child to die of measles, in the US, was in 2003. Over 100 kids a year, during the 16 years since, have been reported to the vaccine adverse events reporting system(VAERS), to die after measles vaccination, per the VAERS data. That’s just deaths, and JUST one set of vaccinations and “boosters” out of the 76 on the schedule.

[@A_Man_In_His_Van]

People are getting polio on vacation?

[@pauljs75]

@@orcoastgreenman It's a collision of anti-vax idiots, health exploitation instead of health care (working poor hurt worse via the coverage gap), and having people arrive from those third world places that still have diseases because there's not really any quarantine measures in place given how modern travel or immigration is done. It's all a recipe for "fun times" if all that comes together, but all or any of those responsible would prefer to look the other way.

[@dano1850]

Our hydraulic shovel motto: “A lil dirt won’t hurt” 75 Canadian pesos is pretty good, we replaced a more Teutonic gear pump slightly larger than that one worth about 100x more

[@raymondmucklow3793]

Og empire of dirt, brought a wee tear to my highball. Thanks brudda.

[@tarekbaratta4007]

I'm doing power stealing pumps in my ast level 1 right now, cool to see another type of pumps on the list, cool to see the video and a real world everyday application, not something most people can see or teach

[@tamisonsresources3396]

Knowing the direction is easy. Usually it rotates away from the inlet port for a pump like this. You can also put some hydraulic in the inlet and turn shaft in one direction. If it comes out from the outlet, you are on the right path.

[@cheerdiver]

Dual shaft, add pedals, great over weight trike drive train. Add a DC motor pressure pump and Lipo batteries, great for hills.

[@69adrummer]

The little specs of foam were really driving me nutz!!

[@Justin-wm6mi]

There may be an adjustment stop as well. And I would think the pressure compensator has a handle to adjust the system pressure by increasing/decreasing the spring tension.

[@timothyball3144]

I'm glad someone has mentioned that pumps don't create pressure. It's a pet peeves of mine. That day one of hydraulics 101.

[@TempoDrift1480]

It's so funny to go from this directly to Mr. Carlson on the same beer.

[@Gunners_Mate_Guns]

FWIW, the 5"/54 caliber MK42 naval gun system that I spent my entire time in the Navy working on had its train & elevation powered by a piston pump, yes with what we called a tilt plate to control the rate of hydraulic fluid flow. The part of the gun powered by that weighed over 50 tons. The gun was actually driven to be aimed by hydraulics, and yes, it was servo controlled. We could hit a target the size of a car at 15 miles. ;)

[@robertmoreau3880]

great video among the many things we have is a vicikers pump paired to a 50 horse motor

[@Phos9]

I suspect Williams had a high quality aluminum hydraulic pump in their F1 car when that was allowed but I also suspect it was only built to last the weekend.

[@xtrariceplease]

Whenever I hear Hydraulic, I always remember those hydraulic injection injuries...

[@roberthorwat6747]

Some things cannot be unseen unfortunately😓

[@freewave04]

Why would you bring that up? I need to go watch a puppy video now , thanks

[@thomasstrickland0]

Works like a power steering pump on a car.

[@Molb0rg]

finally, I f got it ))) thanks man!

[@GrahamDallas]

A great recap on basic hydraulics, thank you, it's been a while

[@poot111111]

I cannot believe Brother Bear is a year old already

[@trapperkcmo3460]

that craftsman 3 quarter wrench is the ultimate fitting tool.

[@skoalxxmint]

Coming home after work on a Friday, pouring a rum and kicking back to your videos is worth a “working late” to the girlfriend. Watcher for years, first comment

[@snap-off5383]

Imagine my channel logo with a read heart on it next to AvE's.

[@jbstepchild]

You got shaft an head in the same shot thats amazing

[@AndrewFRC135]

I work with confuser brain boxes and electronicles on the daily. So the miracle of using inductance and a switcher to make some pixies angrier is intuitive. But, the black magic that is hydraulics eludes me. The fact that a tiny line can connect a big choochin' powerhouse to half a mountain and move it using some schmoo astonishes me.

[@2DCardBored]

Right on, always wanted to see that, thanks. Thought about doing it but feared the unreconsilable pingsplosion.

[@PP-rc1rz]

What are the chances of putting on a transparent cover to watch it work?

[@hoon4tw]

I don't know much about hydraulics but heat and pressure eliminate that possibility without some extraordinary chemical engineering feats. There is a reason these parts are made of steel and not ceramic/glass.

[@MrDerekness]

We're doing process control in my industrial automation course in college and this is the kind of shit I like getting into. Learning how this shit works to very interesting

[@eideticex]

Love vane pumps. Can really put them through hell and the only thing your likely to damage on them are the teeth on the input shaft. The one in the transmission of a car will handle insane amounts of torque without any trouble at all. Crazy part, the one in a car's transmission is small compared to this one, about the size of a hockey puck sliced to half of regulation thickness.

[@tp6335]

Soulmaking, soundshaking, earthquaking torque

[@JackCobalt]

For as crappy as chineseum goes this looked surprising well made, minus the gaskets being bogus but you get what you pay for hah

[@illn0r]

Nice video! It's interesting to see you cover a style of pump I'm actually familiar with for once! I've worked with the Bosch A10VSO series 31 for years and it's quite the pump to say the least.

[@mattb9876]

Good vid. Thanks! Reminded me of when I took a vacuum pump apart and couldn't get it back together again! About 20 yrs ago when I was a youngling about 23 I was a newby maintenance guy at a hospital and one of our vacuum pumps needed new vanes, it was about 4x the size of the oil pump you showed, so we really easy to see and work on. I took it apart and got the new vanes and never finished putting it back together. It was the twin in a paired backup set, but I wonder if anyone ever got it put back together? I wish I could remember what the problem was getting it out back together, something to do with the vanes I think.

[@Lewislpalm]

Those vanes on the shaft reminded me of rotary apex seal nightmares.

[@Patrick-857]

Cool, another VJO, I get to learn something. Damn, I never knew such a pump existed.

[@Crobisaur]

Pumps & vanes, flow for days.

[@FinDuke92]

It would be cool if "someone" could make a seetrough front so you could see how the ring moves depending on the pressure. That would be a good video. Cheers from Finland

[@jdshenanigans9265]

I will say even though i am a know all im still intreaged to see how you explain things . Great video

[@harkeyvision8651]

I got rid of my cable and just watch your channel … keep them quality vidz coming … keep your lick in a slice;)

[@Buczo997]

With such pump in your hydraulic system would you still use overflow valve set to higher pressure as a safety feature?

[@EFD620G]

Congradulations on winning the hammer

[@brianwhite6613]

A little late to the party here.. Just want to add that typically leakage in compensated pumps returns to the case and then tank via the drain (DR) port. The Vickers style cartridge vane pumps don't have a drain port and leakage becomes a part of the pump inlet side. The adjustment screw 90deg from the compensator might be used as a tuning adjustment for noise as its sometimes called a thrust screw. Max volume adjustment screws are typically 180deg from the compensator on vane pumps. Cheers, Fellas.

[@Sleepy_zzzzz]

This kinda vidya is necessary, thank you for transmitting this knowledge.

[@bobhacking1431]

nice to see a interesting vid again , keep it up , proper AvE

[@WhiteBoiJake]

Look at those knipex pliers, fuckin mint! My dads got a pair for snow plowing, every season he says “don’t lose my pliers, those are 30 years old” or “those pliers are older than you” xD

[@sb1981boo]

My new favorite thing is having captions on and YT trying to figure out what you’re sayin. Haha

[@ForgedEggs]

I have a power steering pump that uses the same vaned center, too bad when I was cleaning the crud out of it, the vanes flew everywhere. Any insight on what kind of metal they'd be made of? I could maybe get a set made so I can sell the damn thing.

[@SlocketSeven]

A 3rd world country where kids are dying of measles? Aye. I've been to California...

[@DanskerneFraDanmark]

Lmao

[@ghostreconslovessnow]

And then the parents asked what they can do to avoid their kids getting sick.. Wtf!

[@aserta]

Been to US...

[@T3hJimmer]

oof

[@michaelladue5655]

Hey.... that is Washington and Oregon, and brought here by...... what did the media call it? Oh yeah an" international traveler " what a nice play on words.

[@cirelancaster]

Pumps create pressure, a difference in pressure creates flow. Even if the outlet was wide open the pressure where the moving metal meat meets the fluid would be higher than at the outlet.

[@the-potato-warrior]

I’ve never in my 8 years of dealing with hydraulics seen oil so hot it caught fire... But this is definitely a sweet unit

[@kleinjahr]

Hopefully you never will. If the oil is at it's flash point it can ignite if there is a pressure leak/ spray and an ignition source. Finely atomized oil is quite combustible, ask any diesel guy.

[@15hps]

You should check out the Milwaukee fuel 1/2" impact tool. A complete pos. There must be a shear pin or something made out of tin foil. The one I use has failed four times.

[@pearllllllll]

Interesting knowledge shared, Thanks Im researching to buy a rotary mower to place in front of a skid steer bobcat I see some motors on the mower have only a relief valve, along with some that a hydraulic hose goes back to the machine to relieve the pressure, perhaps i should of said .....flow.... there Interesting you said of how the system can build up very quickly to getting hot, even catching fire My question The variable displacement vane pump Is this a good idea to have a variable displacement vane pump plumbed up where the relief valve is location on the motor ? Or Have a variable displacement vane pump plumbed up somewhere incorporating it within the hydraulics of the machine if it doesnt have one ? Thanks

[@derpinskyeh3967]

I knew they made six piston swash plates...thanks for proving me right ave

[@Suhgurim]

you could machine up a perspex front cover to show the movements

[@joemccall8991]

Wait, I've watched every video translated from the original Kandaean-eh and I don't recall ever hearing 'near and dear to my fart', so, new material!

[@DeliciousDeBlair]

I got a whole lot of hydraulic stuff that this kind of machine would work perfectly for!