More power for Kubota bx (Pressure Relief valve) -How To

[@markcole6475]

Good video! I’ve had two L series tractors ..a 2501 and now a 3902…both tractors were weak on the lift capacity! Checked pressures on both after buying them new! The 2501 was just under 2000 psi and the 3902 was even less about 1900 psi! I searched google and finally found pressure specs! 2349 psi is whats suppose to be on the 3902. I’ve got it around 2500…huge difference in lifting power…I agree that ballast is a must when lifting heavy objects! For safety and distributing load equally to the tractor!

[@BiffsEquipment]

Wow mark nice find! Glad to hear you got it all worked out! Always seems like when someone complains about the tractor not lifting the advertised weight it’s always cuz the dealer doesn’t check the machines and spec the pressures correctly before leaving the dealer.. either that or the relief spring settles after years of use loosing power over time till someone really starts to notice it. Glad it all worked out, thanks for your comment!

[@blankstaircase]

You are absolutely right about adding ballast. People really need to take this advice to heart, if your gonna power up your loader .

[@BiffsEquipment]

Absolutely correct: I couldn’t stress it enough that you NEED proper ballast because with out proper ballast you’ll actually only be making the machine worse not better, and you’ll be making it far more dangerous and put more wear and tear on it as well. Thanks for the comment!

[@dblstackllc9788]

@@BiffsEquipment Hey Biff, I just replaced my HST myself on my bx22. Needless to say I put brand new recommended fluid and filter as well as have a clean strainer. I tried lifting several large chunks of firewood rounds and found that the bucket had to be "tilted" via the lever then moved back to the "up" postion and rock the lever back and forth between these two settings to get the bucket to lift at all. Empty the bucket seems to lift like it did before but under weight it sucks. The lever seems to have been sticky or junky feeling ever since I bought it. I do have the backhoe for this machine, but haven't attached it since the repair, as I wanted to run everything for a few hours to make sure my repairs were successful. Maybe I should connect the backhoe to rule out a hydraulic issue vs the bucket control valve? Any help would be greatly appreciated! Thx!

[@55BroncoBilly]

Thanks Biff. Bx2680 was 1700psi from factory. After using your advise and instruction, now 1900 psi. Just enough. 👍

[@talonpilot]

It’s my understanding that its a good idea to “index” the bolt before loosening it initially, that way you can install it in the same position each time you reinstall it so that you can get consistent readings. Varying tension on that bolt could skew the results because the spring is tensioned differently each time, even if it was torqued down to Kubota specs. Just something to think about. Good info, thanks!

[@BiffsEquipment]

Great point.. I don’t think it would have a ton of effect on pressure.. say it was torqued at 20ft lbs over 35 ft lbs you may see 1/2 a pound difference in my honest opinion because you can feel where the bolt actually bottoms out when it gets snug so I don’t think it’s actually pushing up against the spring as your threading it in but I could be wrong.. I always test the pressure after anyways so I know where it’s at but I could see how results could vary some if the same torque is not applied each time you remove it.. great thought for sure!

[@jonramos2161]

That bolt has a machined shoulder that contacts the housing. Bottomed out is bottomed out. The only thing you would change is the required torque to remove.

[@SimpleLife1971]

From the factory, the pressure relief valve on my 2013 (new) was set to 1775 psi. The FEL hydraulic hoses state 4,000 psi. I added the appropriate shims behind the relief spring bringing the system pressure up to 2,000 psi.........that was 4 years ago and not one bit of trouble. Most if not all standard hydraulic cylinders are designed to operate in the 2,500 to 3,000 psi range.

[@BiffsEquipment]

Hey nightforce thanks for the testimonial! I agree that this mod really has no downsides so long as your willing to void your warrantee and so long as you properly ballast your machine after doing this mod to stay safe. This mod def shouldn't be done with out proper ballasting because of the amount of power in lift that you'll gain. Thanks for the comment!

[@xdude2x]

Just shimmed my 2670 to 1925 psi from 1775 psi, thanks for the video

[@BiffsEquipment]

Nice! You will see a huge improvement with that pressure increase, you’ll find things you weren’t able to lift at all now lifts with ease.. and your still completely safe being under 2,000 PSI.. I’v had my tractor at 2,450psi since the summer now and I’ve yet to have any issues. Stay safe!

[@joebutner8118]

Great video thanks! My 2019 BX23S has to be very low currently. It would be great to install a hydraulic pressure gauge permanently, to monitor pressure real time during every use.

[@BiffsEquipment]

Joe Butner no problem man! I’m glad it helped you. Install it a permanent gauge would be a great idea.. you would be able to constantly keep an eye on the pressure and it would be interesting to watch at times when lifting loads to see what amount of pressure it takes to lift a given load. Thanks for your comment 👍🏻

[@KubotaMonsterBX23S]

Great video! I just got my BXpanded kit in the mail a few days ago and was going to check it out sometime this week. Thanks for the directions LOL. I'll be sure to give you a shout out!

[@BiffsEquipment]

Kubota Monster Hey man thanks a ton I really appreciate that. And if you have me a shout out I would be STOKED Always happy to help!

[@joanrose5221]

I have a bx22 2003. Can not find the relief valve as you have demonstrated. Do you know where it is ? Maybe do a video on that bx . All bx's are not created equal ! Enjoyed your video's. Thank you

[@BiffsEquipment]

Hey joan, since you have an older BX the hydraulics are configured a bit differnt, your releif valve should be located at the end of your loader valve where your joystick is. Somewhere near where the lines go into your loader valve you should find a bolt you can turn that may have a jam nut on it to keep it tight. I have never owned or worked on a bx22 so I can’t say exactly but it should be there.. you shouldn’t need any shims either, just turn the valve/bolt in for higher pressure and lock the jam nut back down.. you’ll wanna test the pressure every few turns you make on the bolt.. you may even wanna check it every 1/4 turn depending on how sensitive it is. Best of luck and stay safe!

[@davedirect4202]

I've had a BX 23 since 2004 and noticed shortly after I got it the FEL lost capacity. I could never figure out how to adjust it. I know now! Thanks!

[@BiffsEquipment]

Awesome Dave, sorry for the late reply, I'm glad my video helped! Did you end up doing it yet?

[@davedirect4202]

@@BiffsEquipment I just tested it, I got a response I wasn't expecting...0 psi. I connected the gage to the top output, lift function, started the engine, full throttle, (I don't have a tach,) moved the selector...0. I don't get it...

[@BiffsEquipment]

@@davedirect4202 are you sure your moving the loader valve in the correct direction to activate that coupler?

[@davedirect4202]

Ok, my assumption that it was the top hose was proof once again of what happens when one assumes...it's the very bottom one. I tested it, 2000 psi. I remember when the tractor was new, it would pick up a bucket of gravel, etc, no problem. It seemed the selector suddenly felt different and from that time on, it struggles. Do you know of something in the selector breaking which could account for that?

[@BiffsEquipment]

@@davedirect4202 by selector do you mean the loader valve? I mean sure the loader valve itself can wear our over time, there are springs in the valve that can fatigue but usually when that happens the loader valve will feel sticky and not return to center you usually won’t loose power.. if your at 2,000 now then it’s possible you coulda been higher when you bought it maybe it was at 2,200 or soemtbjng when you bought it which is well over spec and then it settled back down to around the spec.. aside from loader pressure there isn’t much that should change it’s lifting abilities.. if you have a collapsed hydraulic hose or a blockage in the system then maybe but odds are if you have proper pressure then you should be fine.

[@craigguinn5423]

I just switched to HydrosPlus and 500# ballast. Pressure at 1900#. Very different machine.

[@BiffsEquipment]

That’s awesome Craig! Iv been wanting to try out his lift cylinders myself! My bx is already quite impressive with my hydraulic pressure set to 2,350psi and it would be even more impressive with those cylinders! Just be sure you have plenty of ballast! I have 8x 42lb weights in the rear with my tires filled and also I run a quick hitch which adds another 80lbs.. and my rear end hardly ever comes up anymore.. plus it keeps both you and your tractor axle safe!

[@samrogerskeeponkeepingon1486]

Great video brother thank you so! I can't even pick up a wet load of sand which is pretty sad! That will be changing soon 💪🏼 I do have the backhoe on the rear which way is quite a bit

[@BiffsEquipment]

Oh wow yah mine use to be the same way when I first bought my loader, I increased the relief pressure with in a few weeks cuz it drove me crazy haha kinda drives me crazy Kubota does this, just crank it up and put a warning in the owners manual saying “warning ⚠️ tractor needs to be properly ballasted before use” lol

[@samrogerskeeponkeepingon1486]

Hell yeah brother thank you for the info

[@jamesmorgareidge]

Good video. I’m going to test my loader pressure now. I have been wondering how to do it.

[@BiffsEquipment]

James Morgareidge thanks James! Hope it works out for you, let me know if you have any questions. I did quite a bit of talking and repeating myself in this video but it was when i was first starting out and didn’t realize how many times I said the same things haha. Glad you enjoyed tho!

[@jbstepchild]

Excellent video

[@BiffsEquipment]

Thanks buddy

[@jimmg8994]

Thanks for making this video. So I have a BX23 (not S) and can’t seemed to find the pressure port. Would you happen to know where it is?

[@BiffsEquipment]

Sorry I just saw your comment. Your pressure port is in the exact same location mine is in. Check out my other hydraulic increase videos for more references. I made like 3-4 of them I think

[@danpinkner4225]

Excellent video thank you informative I'm still all stock when it comes to hydraulic pressure

[@BiffsEquipment]

No problem dan! I’m the kind of guy where I push my equipment to the breaking point every time I use it haha so for me it was just natural. There’s nothing wrong with turning it up as long as your ballasted properly and as long as you don’t go above 2000psi (unlike me) haha, you should be totally safe. Im the kind of guy that don’t mind taking risks and I’m pretty confident that I’ll know when iv gone too far but that’s just me. If you try it let me know how you like it, then again if you don’t have any problems lifting/moving items around your house then I see no point in you increasing it.

[@danpinkner4225]

I'm at 1950 PSI. Biff got my gauge from eBay for $9.00 I pulled a quick coupler off of one of my attachments cylinder. She threaded right into the gauge..

[@cleobean8723]

I just used a Dime for a shim. That's about 0.050" thick... Had to grind off the edges a bit to fit in... but it worked great

[@BiffsEquipment]

Haha good to know.. I bet that dime would make the perfect shim

[@chiapet4444]

.050 equals 1.24mm... a bit thick, but should be ok...

[@walkersworkshop800]

Is there any videos of turning up the fuel pump for more hp?

[@BiffsEquipment]

Funny you asked that man, I’m gonna be working on a video very soon of modifying my pump so stay tuned!

[@mewagner89]

Does this only effect loader pressure ? Is there a different pressure system for the backhoe ?

[@BiffsEquipment]

Michael Wagner thanks for your comment, increasing your relief valve pressure will only help with increased loader capabilities, I believe the backhoe runs off a separate relief but don’t quote me on that.. you could always try it and see if you notice a difference.. I know for a fact tho it won’t change the 3point hitch lift power

[@CHRGD1]

I have a 2015 BX 25 with loader and backhoe. I am going to do the pressure check, but I am curious, what rpm do you run? I heard you say to open it up, but didn't give a actual number. I got my tractor new, and have only been running it at 2500 rpm. Thanks for your video.

[@CHRGD1]

Forgot to add I am at about 1,000 hrs, and have done all the services myself. Thanks!!!!

[@BiffsEquipment]

Very cool! When doing the hydraulic pressure testing always have your RPM maxed out which should be over 3,000rpm.. you wanna check it at full throttle to get a true pressure at the gauge and to keep it consistent so always go wide open when testing even if you only run it at 2500 when doing loader work. I am with you cuz 2500-2700 is as high as I ever go usually when doing loader work also. Let me know how you make out!

[@BiffsEquipment]

Wow that’s great! These machines will last a lifetime if you keep up on the Maintenance.. they are very well built, I work the living crap out of mine always over working and over loading mine and I have yet to have any major issues with it.. Bert reliable machines indeed. I’v got 850 hours on mine now 👍🏻

[@ronnieo6867]

Good job sir. Thanks.

[@BiffsEquipment]

Thanks Ron! Glad you made it back safe from FL!

[@outdoors-fun]

How did this play out? You ever bump it up some? Any issues if you did?

[@bryank4649]

Great video. Would you happen to know what the two black hexagonal shaped cylinders are sticking out the bottom of the loader valve body? I have a BX2230 w/the LA211 loader. If you give me an e-mail, I can send you a picture of what I'm talking about. Mine both have a date on them (dates are in 2013) and they appear to unthread from the valve body. I wonder if they are a serviceable (replaceable) component.?

[@BiffsEquipment]

Hey Bryan.. if I had to guess these plugs are just there so the manufacturers can built and assemble the valve body’s and possibly service them if they go bad but I’m not 100% sure on that one. Are you having issues with it?

[@bryank4649]

@@BiffsEquipment not having an issue per se, but I feel like she doesn't have as much strength as she once did. So I on fact made a set of hydraulic pressure gauges and I'm only getting ~1650 psi at the loader valve. I ordered everything to rebuild my relief spring down on the hydraulic pump on the back side of the transmission.

[@BiffsEquipment]

@@bryank4649 ah I see, well more than likely you don’t need all that stuff you bought cuz usually all you need to do is just re-shim the old relief spring but installing a new spring wouldn’t be a bad idea but that should be as far as you have to go.. over time from the spring getting compressed it looses its rebound and when that happens the tractor will slowly loose hydraulic pressure.. by throwing some shims behind the spring you should be all set.. aside from that I would make sure your screen is clean in the trans which often gets clogged up reducing flow from your hydraulic pump.. also change the filter and fluids and you should be all set but keep me posted on how you make out buddy

[@bryank4649]

@@BiffsEquipment thank you sir! I did a full service on the machine when I got it 2 years ago and I made sure to clean that screen (it actually was clean so the previous owner did take good care of it).

[@jealouselephant4139]

RPM's do not affect pressure, only flow rate. RPM's will change the speed at which the implements operate but not their capacity. 500rpm will exert the same PSI as 1500rpm. If pressure fluctuates with RPM then you have a low quality or polluted fluid, expansion somewhere, likely in one or more lines, or fluid seeping around seals. Always regulate a hydraulic system based on the lowest rated component, not the highest.

[@BiffsEquipment]

Your right.. flow rate is what I meant.. thanks for catching that!

[@turtle7218]

Very good video

[@BiffsEquipment]

Thanks buddy!

[@jimg8218]

If you are able to pick up more weight on front higher chance of front tire go flat especially while turning,, be safe

[@rossokeefe9268]

I have a b2620..I've noticed my loader hasn't had the power as it first had..but my backhoe still seems fine..been wondering how to fix it...I wonder if could get this kit for my tractor?

[@BiffsEquipment]

Hey Ross, they make a pressure relief valve kit for your tractor .. if you look/search for it on eBay you’ll be able to find what your looking for, at the very least you’ll have to buy the gauge for your tractor as the coupler for the gauge is a differnt size than a B-series tractor .. I’m thinking any B series gauge/coupler should work for yours.. the shims will sometimes come with the gauge but if they don’t you can use thin washers or ask your local Kubota dealer they will typically have them on hand. It makes sense that your relief valve spring is prolly getting weak over the years as this spring does not affect the flow/pressure going to your backhoe which is why you don’t see a difference with your backhoe.. this relief valve only effects your loader pressure. Let me know how you make out, best of luck!

[@jeffkluth2201]

Thanks for your video. I have a BX23S that I bought new (200 hrs now). Just got the BXPANDED gauge on and it gave me a reading of 2300. Asked the dealer about it and he said it had to be attached to the pressure relief valve (guess I need an additional adapter) to get an accurate reading. Whats your take on that ? Thanks, Jeff

[@BiffsEquipment]

Wow 2300? That’s super high, I run mine at 2,250 which is like super super pushing it already haha. You don’t need to run it at the relief valve ..testing it at the loader hydraulic manifold is exactly where you should be testing it at. I would if anything say maybe your gauge is in-accurate and I would say maybe go to tractor supply buy second gauge and see what that says.. worst case if it is truly at 2300psi I would actually remove a few shims and take it down to about 2000 psi.. that’s a nice happy medium but if you choose to do this you have to have proper ballast as it can tip very easily so you must be very careful.. also anything high than 1900psi I believe will void your warrantee so def talk time the dealer again and ask TJ speak to someone different this time or even try calling a diffferent dealer all together. Lmk how you make out buddy. Congrats on new purchase btw!

[@jeffkluth2201]

@@BiffsEquipment I finally took off the spring today and found not a shim but a washer. Told the dealer and he said “oh yeh, we’ve seen that before” and he didn’t think it was a big deal. I replaced it with a .3 and it was right where it was supposed to be at 1850.

[@BiffsEquipment]

@@jeffkluth2201 that’s weird I never heard of anyone finding a washer before, glad you got it back Rj where it’s supposed to be with the correct shims 👍🏻

[@boblogan8344]

How do you hook a gauge up to the 23S? it has a manifold on the loader. All lines go into the manifold to make quick and easy changes.

[@BiffsEquipment]

@@boblogan8344 hey Rick, since you have the new bx80 series you’ll need to buy a proper Kubota flat faced coupler to be able to mount it to your manifold, they can be found sometimes on eBay or at the dealer if you tell them what your looking to do.. just let them know you need a coupler for your gauge that will plug into one of the fittings on your hydraulic manifold and they should know which fitting you’ll need .. it’s a special flat face coupler not a pioneer coupler which is what mine uses

[@waynealayman9736]

So if you don't have enough ballast you'll break your front axle. Seems to me the more ballast you have the more stress you'll be putting on the front axle as you add pressure.

[@BiffsEquipment]

Your correct in a way but not entirely.. yes adding weight to the back will allow you to lift more in the front which means more weight on your front axle but it’s the way the weight is being distributed as the tractor is working that makes the difference.. when you have proper rear ballast even though your able to put more weight on your front axle because of it the weight is not Awkwardly shifting or bouncing on the front axle since the rear axle is being planted with the proper amount of ballast.. if you did not have the proper amount of ballast then you would be lifting the rear tires in the air forcing your front axle to do not only the steering but the driving, braking and pulling as well as it bouncing up and down on the front axle as you hit bumps.. having rear ballast keeps the weight centered across both axles so it’s much less stressful on your front axle even if you are allowing it to lift more weight.

[@thuongpham8742]

You try to give the video more brightness it will be great if you do

[@BiffsEquipment]

Thanks man, this video was taken awhile ago before I had good lighting setup in my shop. Now I have like 4 extra lights hanging and plenty of light. I also have a better camera, I think I was still using my cell phone in this video lol. Check out the playlists tab on my channel you’ll be able to find a playlist full of all my hydraulic pressure videos related to the Kubota BX and other tractors and alot of them are much more modern 👍🏻

[@MarkBerry-aka-Chuckles]

What is required to increase the lift power of the 3pl ?

[@BiffsEquipment]

I want to say there is another relief valve for that but I’m not 100% sure.. I havnt found anything the rear arms won’t lift anyways tho.. have you?

[@chiapet4444]

Sooooo, I added a 1mm washer, brought the pressure up to 2300psi from 1650 ish... I'll have to watch myself 🙄😏

[@TheHomePros6221]

I’d take it down a notch I’ve seen people actually bend cylinders

[@bombidude]

3000 psi hoses stock

[@jbstepchild]

Says right on the line

[@brentmcmahon8188]

I bought a kit and coupler is to large to fit my BX 2200. 2002 model what size coupler ?

[@BiffsEquipment]

Ah I see, yah the bx2200 actually has the loader valve up on the frame of the loader where it’s not integrated into the machine so I’m not sure you could do it the same way I did. Your relief valve should be built somewhere into your loader valve I believe. As for the fittings I’m not sure what style or size fittings Kubota used back then cuz I never personally owned the 2200. Best of luck!

[@BrutusTJustice]

My bx23s has 112 hours and seems to have less force when using the backhoe.Will this upgrade help the backhoe too?

[@BiffsEquipment]

No unfortunately this will only increase the pressure for your FEL, I believe the backhoe is on a separate relief valve

[@BrutusTJustice]

@@BiffsEquipment Thanks for the fast response.

[@henryhenry5897]

I did test mine first read 1750, then I I put a 0.4shim in it was 2500 took all shims out 2500 now I wonder if my gauge or something is messed up ? I don’t wanna trust it anymore lol I wonder what is going on

[@BiffsEquipment]

Hmm that’s really odd.. maybe the higher pressure after your adjusted it broke your gauge.. or the spring possibly isn’t seated correctly.. make sure the hole is clean that it goes into on the back of the case and make sure no dirt or debris got inside the relief valve when you removed the shims, I’d take it out clean it all real good, put it back together again with no shims then test it, if it’s still high then I’d try a new gauge. Iv never had this happen before but have heard a few guys having this issue and I’m not sure what’s causing it cuz Iv never run into it

[@henryhenry5897]

@@BiffsEquipment yes i removed all shims and inspect I will clean it again and buy a diff gauge to see what it shows it’s only 16$ I will let u know

[@henryhenry5897]

@@BiffsEquipment I did get a new gauge same reading 2200 at idle 2350 at 2500rpm If u back up the screw about half a tube it goes down to 1500psi .. I wonder if I should file the spring down a bit to get a safe 2000psi or should I just keep it at 2200psi idle max 2350 it seem to be pushing it tho idk I’m not concerned with the the hoses but I wonder it’s to much for the pump ?

[@BiffsEquipment]

@@henryhenry5897 not too sure on that one, I’d go to the Kubota dealer ans ask for a new relief spring and try that. Really sounds like you have a shim stuck inside the case or a peice of debris since it lowers when your back it out

[@henryhenry5897]

@@BiffsEquipment it seems maybe inside the block this housing maybe went little off and thus creates more pressure I don’t think the spring … Are u still running urs at 2400psi? It’s amazing with about 2300 what it can do I’m almost tempted to just leave it it’s like on steroids

[@georgeschuster8718]

Thanks again

[@user-sz9lu1wf7j]

Could you tell me where to get that kit with the shims and the gauge

[@BiffsEquipment]

Hi, I got mine from www.bxpanded.com

[@ronlusher7276]

Parker hose, it is at least 3000psi

[@BiffsEquipment]

Ron Lusher Thankyou 👍🏻

[@derekbionelli1049]

Did you ever get around to testing the increase in lift capacity or rotation speed? Just got the text kit, wondering if the increase in psi was worth the risk

[@BiffsEquipment]

Derek Bionelli I have been waiting for warmer whether, when I made this video it was beginning of winter; it’s now getting towards the end of winter so I have been chomping on the bit to make my capacity video.. it will be coming soon for sure 👍🏻 As far as if it’s worth the risk.. absolutely.. you will notice a large increase in lifting power, you won’t notice this upgrade tho if you don’t lift heavy items but if you lift heavy items you will notice instantly the power increase. As long as you don’t go above 2,000 psi there really is no real risk. If your tractor is under warenteee it will “void” but to be honest no dealer is gonna go checking your shims.. and if you were really worried you could just take the shims out before you had warentee work done cuz they would never know the difference

[@BiffsEquipment]

Gonna get doing this soon, it’s finally warming up outside so next time I get some free time I’ll use that crane scale and see what she can lift

[@derekbionelli1049]

I went ahead and shimmed mine up to 1850 from 1675ish. It made a huge difference in breakout force and loader speed. Still a BX but it was noticable...can't wait to see numbers to go with observations

[@BiffsEquipment]

Derek Bionelli awesome man! Glad to hear it, it’s definitely noticeable for sure. Like you said it’s still a bx but if you can get more power out of it and know how to handle it then why not. I’ll work on the loader testing this week for you, I have my part 2 to my driveway job I gotta get edited and uploaded and then I’ll get right on it

[@craigmacdonald458]

My Bx2350 is blowing hydraulic filters - separating the filter at the base. Would this valve be the issue.?

[@BiffsEquipment]

Wow really? It certainly could be! I’d check it right away, pull it out see what it looks like, also when was the last tile the screen filter was checked inside the trans?

[@craigmacdonald458]

Thanks. I had just inspected the screen a couple of months ago when I replaced the fluid and a filter.

[@BiffsEquipment]

@@craigmacdonald458 hm I’m not sure then, I would def check the relief valve and maybe even order a new spring .. also check your hydraulic pressure with a gauge see what it’s putting out.. sounds like it may be broke and set way too high which will eventually kill your pump and when that goes you gotta rebuild the transmission so it’s very expensive!

[@patriotdarktolight1780]

This is the same valve for your Backhoe ??

[@BiffsEquipment]

No the backhoe uses a differnt releif valve that may be built into the backhoe.. the loader used the relief on the back of the trans.. so adding shims where I did will only increase your loader lift and nothing else. Hope this helps!

[@marcosolivo2606]

Can this be done to skid steers

[@BiffsEquipment]

It’s possible, you just have to go through the manual or a parts list and figure out where exactly the hydraulic pressure relief valve is located and from there figure out a way to increase the spring pressure/tension while checking it with a gauge. Just be careful as it can be dangerous specially with bigger equipment that’s a lot more capable like a skidsteer haha

[@johnhershey4010]

Doues it makes your tractor go faster @ 2000 PSI

[@BiffsEquipment]

No it doesn’t make any difference with speed, just with pressure.. to get more speed you’d have to get more volume or flow from the pump.. the pressure just helps in what it can lift or curl

[@jimg8218]

Maybe spring should be changed, more times spring releases pressure weaker it will become overtime,, so keep adding numerous shims could be a temporary fix,, when do you stop adding shims ?

[@BiffsEquipment]

Spring tension on these doesn't weaken that fast, and when it does its a VERY VERY small amount.. most people would never notice the pressure loss or care but for guys wanting the most out of their hydraulic systems this is what needs to be done.. Replacing the spring wouldn't solve the issue cuz that would only bring you back to factory pressures, you would still have to add shims regardless if you wanted the pressure I'm using. Now if the spring was weakening quickly say...loosing 10-50psi per year then yah that would be an issue, but in most cases you may loose 10psi in 5 years or more..so it doesn't really warrant replacing the spring specially when one small shim can get you back there.

[@jimg8218]

@@BiffsEquipment THANKS FOR THEXPLANATION. : )

[@sammysil2851]

Just tested mine and it's at 1900 psi. 2021 bx23s

[@BiffsEquipment]

That’s great Sammy, sounds like you were one of the luckier ones who actually got your pressure at the spec it’s called for. I wouldn’t turn it up unless you feel the need for it, otherwise you’ll void warentee. Best of luck and thanks for the info!

[@eddieb9110]

There is a LOT more to hydraulic systems than the hoses psi rating. What kind of system is this? Fixed displacement open center (likely)? Pressure compensating? Load sensing (unlikely)? Screwing with the main relief might not even accomplish what you are trying to do. Are there secondary reliefs? An accumulator? You should always have a complete schematic and know what it means before you modify a system.

[@danpinkner4225]

I do have a question does it change pressure at idle speed?

[@BiffsEquipment]

Dan Pinkner your idle will be the same.. this only changes at which the pressure dead heads and is limited.. so at low flow conditions like on low idle you won’t see a difference.. one way you can make sure your not restricting your flow at idle or low throttle is to make sure your rear 3-point hitch adjustment knob is all the way loosened.. for whatever reason if you have this valve too tight it will restrict the fluid flow so your loader will not preform as well on low idle tasks.. hopefully this helps dan

[@chrishortonii7532]

Does anyone know the size and style hydraulic fitting the bx23s uses on loader. I need to get female connector for hydraulic gauge thanks

[@BiffsEquipment]

Hey Chris, if you call your local Kubota dealer or messicks they will be able to give you the part number in which you can then order it from them or you can do an eBay search for the part number and buy them off eBay:. I bought mine off eBay.. you have 1/4” flat face couplers but they make many different variations of them so you can’t just search 1/4” flat face coupler you gotta locate the Kubota part number for each male/female fitting. Hope this helps

[@chrishortonii7532]

@@BiffsEquipment I called mine the other day they weren't much help but thanks. I'm going have to go up there

[@chrishortonii7532]

I have new bx23s with the flat face coupler. coupler that fits onto loader is part # is 7J626-66320 and that's a kubota part # it runs about $40

[@BiffsEquipment]

@@chrishortonii7532 awesome thanks for coming back and letting us know!

[@lonniedaniell1107]

You need to be careful because hydro oil can get hot enough to burn you and there is no getting away from a high pressure line blowing oil also lifting the back up you loose all control

[@BiffsEquipment]

Thanks, yes I’m always very careful when working with hydraulics specially when I have modified them like I did here. Hydraulics is nothing to mess around with when you don’t know what your doing

[@garrytalley8009]

It voids the warranty. Could cause failure that could be very expensive. Is it really worth it to do that? Most likely will not get all that much more lift capacity before you run into problems of possibly damaging tractor.

[@BiffsEquipment]

The amount of lift you gain is actually quite a bit, it was a huge improvement to the machine and to its capabilities on jobs, I do not have a warrantee so I didn't care but you bring up a great point, if you don't want to void your warrantee then you shouldn't be doing this mod. Thanks Garry.

[@rickyhorsburgh6581]

As far as im aware as long as u stay within there recommended limits in ur owners manual ur warranty should be fine most manuals state a range and not a specific number so tuning it to the upper pressures they suggest is still within the factory spec its adjustable for this purpose just dont abuse it like some people and u should be fine

[@tjvaichus]

My 2019 23s FEL lines state 3000psi

[@philipjohnson8064]

I don’t see you saying what temperature the fluid should be at when you do the test, from what’s I’m reading in the shop manual the fluid should be at 104-122 degree. I’ve been upping pressure for many years and know your pressure is higher when cold just taught i would mention it.

[@BiffsEquipment]

Hey Philip.. yes you are correct.. the colder the temperatures the higher your pressure would read.. likewise the warmer the temp the lower the pressure would read.. I just assumed that most people would be increasing their pressure in your average temperature ranges which would be 65-80 degrees Fahrenheit.. I did not think someone would be doing this in the colder weather or the dead of winter so I didn’t think to mention it. The temps when I have adjusted my pressure has always been between 65-75 degrees I’d say.. no lower than 60.. I feel as long as your adjusting your pressure between 60-80 degrees with the tractor and hydraulic fluid COLD or Luke warm would give you the most accurate results. Testing your pressure after your machine has been worked hard would generally leave your pressure much higher than you think.. tho I don’t think it’s gonna have as large of an effect as you’d think.. the pressure may vary by 5psi max either way depending on if it’s hot or cold but I have not tested this theory.. next time I do a hydraulic pressure test tho I will be sure to bring this up. 👍🏻

[@philipjohnson8064]

Thanks for the reply and keep up the good work awesome videos I’m going to check and adjust mine when the weather gets warmer up here in NS Canada.

[@BiffsEquipment]

@@philipjohnson8064 sure thing and thanks for watching! Yah that’s a good idea, I’d let it warm up a bit till you at least get into the 60s or so for at least a week then do your test just to be sure your fluid isn’t ice cold when you do the test otherwise I’m sure your adjustment is gonna be off as it gets quite cold where your at! Keep me posted with how things go 👍🏻

[@jimjennings1970]

I'd love to see the loader lift 1000 lb

[@BiffsEquipment]

It should lift 1,000 off the ground. Should I prove it?

[@metallideth503]

Why no tee in your pressure gauge?

[@BiffsEquipment]

I didn’t need a tee to just read pressure, I’m not sure what you mean

[@bombidude]

I set mine to 2000 psi on my 2380

[@BiffsEquipment]

bombidude nice that’s where I’m at.. 2,000 psi is perfect IMO.. I’m maybe a TOUCH below 2,000, it’s important to check it at least 1-2 times a year as spring pressure will weaken overtime. At 2,000 psi as long as you have enough rear ballast you should be safe if your careful.. I work my tractor really hard and iv almost broken a few things more than once lol but hey they are made to work right?

[@BiffsEquipment]

Also bent my bucket in more than one place 😂 this tractor is a little tank tho. Deserves more credit than most will give it that’s for sure

[@GunninWizard]

My tractor shakes a lot when I try to dig. Seems weak. It’s a Kubota 2370

[@BiffsEquipment]

Hm that’s strange; what do you mean by it starts to shake? Like the whole tractor? It could be shaking because as you dig hard the diffs are locking and un-locking which can def cause this shaking you are talking about.. one way to remedy this is to change your front diff fluid out for a thicker fluid.. I recommend 80w-90 standard gear oil.. this will help to put more power to the ground and it may shake less.. this is what I use in my front dif and I have much better traction now when digging

[@GunninWizard]

@@BiffsEquipment thanks. Ya we just bought it with 170 hours. I guess they didn’t do annny service to it. It had a clogged air filter and oil as black as paint. So they came and picked it up and said they will service it. I was barely working it. And it was weak. Like just skimming the ground with the loader. Not even digging

[@BiffsEquipment]

@@GunninWizard yah that’s odd, sounds like the previous owner wasn’t big on maintince.. sounds like it coulda been a few issues, also if the air filter was clogged and the oil was black I’m willing to bed the fuel filters were clogged and so was the trans filter and strainer.. I’m sure your dealer is gonna take care of you and do a full service and once they do I’m betting your problem goes away cuz clogged fuel filters and air filter will make the engine hesistate and stutter and have loss of power and vibrate under load, also clogged trans filter and Strainer will cause transmission to feel weak.. let’s hope the full service is the cure, these tractors are super tough so I doubt it did any serious damage, I have put mine through hell and I’m amazed I’m not seeing any symptoms yet but I do take good care of it maintenance wise and sometimes that means more than the way you drive it.

[@bombidude]

1790 to 1850 is stock psi

[@BiffsEquipment]

bombidude I thought so but many many people report of only having around 1600-1650 from factory which is real low.. this is what mine was At and I know Mine wasn’t the only one. But yah your right factory spec is between 1700-1850 generally speaking.. whether or not it’s actually set there is the question lol.

[@AviewFromUnder]

keep trying you will break something!

[@BiffsEquipment]

Gord Reddy where’s the fun when your not breaking something Haha. Thanks for your comment

[@AviewFromUnder]

@@BiffsEquipment Thanks for the video and have fun

[@jbstepchild]

The bx only has a lift capability of like 745lbs that's not alot

[@BiffsEquipment]

Yah it def helps after you increase the hydraulic pressure so long as you know the risks involved. Thanks for watching 👍🏻

[@jbstepchild]

@@BiffsEquipment Right! The risk of getting more done I getcha lols jk

[@BiffsEquipment]

@@jbstepchild haha!

[@cydewaz]

Dude you could have cut out at least 15 minutes if you just didn’t say the same things 6 different times. That’s not the detail we were looking for!

[@BiffsEquipment]

Made this video a long time ago when I first started my channel.. I don’t do this anymore, I do have other hydraulic pressure test videos that I made you may wanna check that out that are a lot newer. In one of them I bring my pressure all the way to 2,250psi and Iv left it there ever since

[@retired-pipefitter]

Be careful it’s just a lawnmower with a loader.

[@BiffsEquipment]

Patrick the union pipefitter 👍🏻

[@MrNota500]

Careful you might trigger some people saying that. I call it a baby tractor, but you are right its engineered to do light task around the homestead. At some point you will break it. Tractors are not a one size fits all type of thing. If you need much more than stock pressure you should have just bought a bigger tractor.

[@davehudson4607]

It’s a tiny tractor, don’t overdo it, eventually you will break it.

[@BiffsEquipment]

I agree, it can only handle so much pressure, I don’t recommend anyone to go higher than 2,000psi and if they are doing this they should know it will void warentee and that they also need proper ballast. I have currently had my pressure set way above the factory limit at 2,250psi but sometimes I’m afraid I’m gonna hurt the hydraulic pump.. and if your not careful you could possibly bend the loader if you lift something wrong with that kinda pressure/power. Thanks for watching!

[@jokinjoe9447]

you talk too much ,just do test we are not dummys....

[@BiffsEquipment]

Joe Singletary this video is old.. I did talk a lot and actually repeated myself a few times lol. My more recent videos are much better. Was still getting use to making videos. Thanks for watching tho

[@69headwound]

@@BiffsEquipment Who gives a fluck what that guy thinks anyways

[@Will-tm5bj]

Shaddap

[@eviloctober]

Dummies is how smart people spell it because it’s also the correct way it is spelled. Just saying.

[@MrNota500]

@@eviloctober Spelt not spelled, Touche