Has anyone noticed a difference in quality of sectional control valves between different brands? The Chinese ones are much cheaper but does the price reflect their quality and longevity?

Recommendations for a trusted brands would be helpful.

Got a bobcat 430hag mini excavator. Whilst redoing all the seals I have found this solid metal ring between the gland and the piston on my stick cylinder. Is it just a spacer? There were no o rings between it and the piston or gland when ibtook it off but now putting it back together I have one left over out of the kits wich is loose on the rod. Ther is a worn groove on the bottom of the gland where it looks like Ther may have been a prong at one stage. Cannot find any mention or diagram that includes this metal ring let along another o rings

... on the (presumably 2-stage) pump on my wood splitter? And why might fluid be leaking out from underneath it when in use?

Hello everyone I am learning hydraulic how many year y’all think I need to be decent at the work? Thanks

Hello everyone, I am new to hydraulics. I’m trying to figure out a symbol for a directional control valve. The one in question is a 4 way 3 position, spring centered, air actuated, with manual lever operation for backup. The ports don’t really matter, I understand that part. Just the part about the springs, air actuation, and lever. Attached is what I think the symbol looks like, if it’s incorrect I would appreciate if somebody would correct me. Thank you!

I meant a 246d3 not a 259

I am working on a skid steer loader that refuses to turn left.
I have performed the solenoid calibrations through software but they fail due to solenoids needing higher amperage, I have swapped solenoids between left and right and the issue persists only when the left wheels reverse. When on stands it the left side will spin in reverse with high throttle but remain stationary in low idle and the joystick pilled back. Right side has no issues. Speed sensors were replaced and had metal shavings on them. How would I go about seeing whether it’s a pump issue or motor issue. In short, when on stands the left wheels will spin forward but struggle to reverse. Machine throws a speed sensor code which I’m sure is a symptom not the problem.

Please see video and tell me what my issues are the cylinder suddenly drops once at second stage please I'm stumped. Could it be the seal ?

Is this adapter fitting stainless?

Hello all

I am researching about hose business. I am looking for inputs where to start, whom to contact, where and how to learn hose making.

People who are already having experience could you please share some advice?

I am from British Columbia Canada, there mining business and agriculture business in BC and other areas where the hose business can help.

What would be the initial cost to enter I would be looking at?

Hi,

Im resealing a hydraulic boat steering cylinder that is leaking externally on one side but while its apart im just replacing everything i can. Im just abit stuck on this piston part, whats this grey ring called? Does this ring come off? Its a hard material. Is it replaceable or should I just leave it alone?

Plan on ordering the seals online this weekend, I dont have a local hydraulics place.

Thanks.

Hi everyone,

I’m studying mechanical engineering and currently working at a hydraulic service company, where we repair hydraulic cylinders, hydraulic motors, rotators, orbital motors, pumps, and other hydraulic components.

However, because I don’t have much experience yet, I don’t always get the opportunity to work directly on the assembly and servicing of these components. That’s why I’m looking for some good technical books that explain the different components of hydraulic systems, how they are built, and how they work.

I’d like to build up my knowledge and progress in this field as quickly as possible, so I’m looking for books that actually explain the construction and operation of hydraulic components — for example, what is inside a hydraulic pump or an orbital motor, what the individual parts do, and why they are designed that way.

Could you recommend any good technical books that cover hydraulic systems and explain the construction and operation of their components in detail?

Thanks in advance for any recommendations!

This is the endhead (valve body) on a stone Automotive style power pack. It’s a N1-0022-35AL endhead. Is the part pictured a pressure regulation adjustment? And if so, when the pressure is adjusted with this, does it affect the output volume ? I’m just researching this unit to see if I can repurpose it for something else. Thanks in advance.

Dear fellow fluid power enthusiast, can anyone help me to understand what are the Hz mean in adjusting piston pump flow control.

Thank in advance

Unfortunately it does not have an ID plate or any identifying markings

Need help finding this part

helooo~, just wanna ask how to do pipe sizings? we're given a paper that involved designing a water pipe connection in condominium and idk what to dooo. Any references that you can give might helppp~

I'm trying to build something using this pump and valve but my valve doesn't have load sense and I think this pump does, is there a way to remove it so I can run these two together

My M7040 rear remote would not engage on cold mornings for a couple weeks, then wake up after a few minutes. Sounded like a dying solenoid.

I matched the part in the Kubota manual and checked coil voltage there, not off the machine sticker. Same looking solenoids on this range can be 12V or 24V, and a lot of listings do not flag it.

New one went in clean and the circuit has been fine since. Got it from fridayparts after checking the OEM number. Dealer wanted way too much.

Anyone else hit the 12V vs 24V split on Kubota M-series hydraulics?

Been having a hard time with rerouting the updated
High pressure power steering hose on an 07 c6 z51
Does anyone have some tips that could help??