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  1. O

    Backhoe Backhoe bucket interchangeability between brands

    I have the kioti 2475 - could you confirm the pin spacing & size on your 2485? See pics over at Backhoe - Kioti Backhoe Bucket, but the key specs are: 1 inch pins bucket ears have two pins - but the offset between those pins is not critical, since the 2nd pin is on a swingarm. ears on bucket...
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    Backhoe Kioti Backhoe Bucket

    I normally wouldn't resurrect a 15yo thread, but dusty's done that for me :) I am looking for the same - a narrow trenching bucket for my kb2475l (ck2610 hse tractor). Can anyone with the NH, LS etc confirm theirs against the Kioti? here's the spec's of the kioti bucket: 1" pins ~136mm /...
  3. O

    year-round fabric cover for more delicate tools/implements

    Looking to make a cover for my sawmill and a few other less-weatherproof tools** which at least for a the next several years will be stored outside. I've tried tarps, but: with the relatively harsh & consistent sun we get they degrade faster than i'd like because they are fully waterproof (not...
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    pressure drop in relief valve (prince RV-1H)

    Thanks for the clarification. FWIW i haven't found as clear of terminology in the "mobile" world, vs the "industrial" community [definitely standard names, btw]. I'm sure it exists, maybe it's just more-specialized/smaller user group (of folks actually engineering things that is). Which would...
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    pressure drop in relief valve (prince RV-1H)

    Read the definition i linked. As best i can tell, there is no name in common use w.r.t. the semantics of flow i'm talking about. Farmerford provided workable definitions that will save a whole lot of hot air.
  6. O

    pressure drop in relief valve (prince RV-1H)

    Yep, have power beyond. But the valves on my tractor, like virtually all smaller TLB's, are "tandem valved -VS- series"**, so i can't use my full meager flow simultaneously. I only expect to use it as such when the tools are ~unloaded (no magic here) ... but that use, like when "repositioning"...
  7. O

    pressure drop in relief valve (prince RV-1H)

    agreed on the noise. That said, there aren't that many operations in an TLB that will trigger this any more than momentarily when something reaches end of travel. And once you get used to a machine, that's not happening a ton.
  8. O

    pressure drop in relief valve (prince RV-1H)

    Prince got back to me, RV series with 1/2 inch ports (the smallest option) will have negligeable pressure drop. ~1/2 PSI at my 7gpm.
  9. O

    pressure drop in relief valve (prince RV-1H)

    talked to a Prince FE; they're going to get back to me on the actual pressure across (Pin --> Pout), but they did note that the RV line ("differential poppet inline relief") is the exact same cartridge style that is used in Prince FEL valves. So that adds a fair amount of confidence as that's...
  10. O

    How to bleed hydraulics on front end loader?

    I agree with this; there is also the issue of air that would start in the system if not bled. Which means we're all on the same page that it's not just the cylinders here - other parts of the system esp valves are possible points to introduce air. From what I've read online it's really not...
  11. O

    New Holland 4835 remotes

    If you don't already have one, buy a beam torque wrench Amazon.com : beam torque wrench ~ $30 ... unlike all other styles, these are " calibration free" as long as you don't drop/damage it, how much the needle moves is simple deflection of the steel beam. They are not the most accurate - but...
  12. O

    pressure drop in relief valve (prince RV-1H)

    Good question - am i understanding this wrong? Call the three ports on a pressure relief valve Pin, Pout, and T(ank). I see the high head across the relief valves "when they are relieving" eg open Pin-->Tank But my understanding is I would adjust that valve such that my actual system pressure...
  13. O

    Hydraulics 101 - Connections

    first, 2000+ psi is no joke. Among other things, it's an injection hazard; and if you have something that is going to fail under pressure, it can fail HARD, and cause death. Your post makes me a little nervous for you - not trying to offend, just trying to help. That said, reversing the lines...
  14. O

    New Holland 4835 remotes

    > the factory loader and it is plumbed into the two rear remotes the rear remotes are driving the front loader? As in the tractor doesn't have a dedicated FEL valve? Sorry, must be missing something, or just haven't seen that config before. If the tractor came with a FEL, i'd expect you have...
  15. O

    john deere 3320 removing an in line hydraulic filter

    if you had known you wouldn't re-use the housing from the get-go the lead tech of the shop i worked at back in high school would just hammer his largest screwdriver through a stubborn filter and use that for leverage :)
  16. O

    Hot hose protection?

    what lines are getting this hot @joea99 ? Just checking we're talking about a "normal" mobile system like a tractor. The max fluid temp in a normal tractor system is not that hot as even plastics go (your skin ... not so tough! :) ) The "hose protectors" that came on my Kioti are simply...
  17. O

    How to bleed hydraulics on front end loader?

    Ignoring the seal issue (do they vent? not vent?) it's entirely possible that this could simply work it's way out "on it's own". If the air-entrained side of the cylinder is "up" - then any free air would get forced completely out next time the cylinder moves, as the [volume of cylinder] >>...
  18. O

    How to bleed hydraulics on front end loader?

    This cannot account for purging all the air - the unloaded side of the cylinder doesn't pull a vacuum - the volume of air that remains in the hose, valves, (IE doesn't "make it back" to the reservoir or a check valve) is not going to go anywhere [see below...] ^ UNLESS there is another path...
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    pressure drop in relief valve (prince RV-1H)

    AFAICT, it's only safety / longevity of pump that I'm "worried" about regarding actual performance of the device, not so much how much a human operator would notice anything. I'm not really sure what there is to "notice" in relief valve operation, anyway - a larger audio "pop" at the beginning...
  20. O

    pressure drop in relief valve (prince RV-1H)

    Correct - i hope that pressure drop line to tank would be 100% of my system pressure :) The "cartridge" aspect was actually what prompted this question. The RV series is a cartridge BUT goes up to 3000psi. The smaller RD series (RD-1800) is a "direct acting" ball (cuttaway seems to show...
  21. O

    pressure drop in relief valve (prince RV-1H)

    For the curious, the modified system will flow pump --> (new) pressure relief obviously has it's own return to tank --> (new) valve, tandem center; size D05 for minimal pressure losses P->T** **T is fully pressurized here. There is no return to tank on this valve/manifold. So the...
  22. O

    pressure drop in relief valve (prince RV-1H)

    None of the "datasheets" for relief valves I can find seem to provide a flow-vs-pressure-drop curve. I'd like to know so I can verify the heat load & pressure loss I'm incurring here is acceptable. --- I'm modifying my hydraulic system to function with a grapple as if it were built into my...
  23. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    Sorry, I should have spelled it out in my OriginalPost - I meant OverPressure valve. Definitely required if i go upstream of FEL valve, as otherwise I'd blow the pump when the cylinder is dead-headed: And on the heat / power loss - I think you're probably right, or at least close enough, on...
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    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    if this is even close to accurate, i really should just use a monoblock (not a standard / repairable - but folks seem to have them last), or my single D03 + port multiplier (doesn't package as out-of-the-way) 200+ psi drop or more PSI is definitely way too much to loose - that's over 3/4 hp...
  25. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    I wasn't able to find pressure drop for a series manifold. I would really like to know, thought!
  26. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    Yes, I'm concerned about this; cartridge valves while smaller would be even worse. My tractor is only 6-7gpm for the implements, so on the lower end there, but as you say that's PER VALVE. As opposed to a monoblock design which (according to Summit & how I read this chart - i believe the curve...
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    Summit Hydraulics - reliability of parts/valves, support experience?

    I'm thinking of buying some valves from Summit, but this will be my first foray into real modifications to my (or any) hydraulic system. I have my head around what I need and generally what the options are (I think, famous last words) ... Summit seems to be one of the only games in town that...
  28. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    I know there is some overlap in what you/Fit-Rite sells (and I had a great experience ordering Euro 3-pt hooks from you, thanks; and of course greatly appreciate your contributions here on the public forum.) It does seem another benefit of industrial (Dxx) manifolds & valves is they are a...
  29. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    Absolutely! ;) but thanks for being sure The only potential issue i see here is that, without a dump to tank, the "industrial" valves in series have the possibility of introducing overpressure downstream: Valve 1 open to extend the cylinder, which is partway through its stroke and ~unloaded...
  30. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    I should add that one "less-common" design goal for the 3rd function / grapple: I would like to be able to operate the grapple AND the loader, at FULL FLOW, for "unloaded repositioning" operations - eg, open grapple & lower FEL with both going at full speed (full hydraulic flow). I'm...
  31. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    three solenoid valves - two rear solenoid remotes (top & tilt, a personal project I'd like to automate), and a 3rd function (grapple via new rocker on loader lever). All Tandem valved Grapple circuit is mandatory, and needed now - and overall effort isn't a whole lot more (esp considering the...
  32. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    Thanks, that's at least the right model, and for sale with a price! FWIW, I had searched bailey's and grainger and surpluscenter (plenty of valves, no Deutsch as best i can tell). Also, Hyvair has a sku for these, D03sds (vs the typical D03s; and they also have a bare-lead version D03L which...
  33. O

    Hearing protection

    Yeah, these devices work by playing back the "same" sound, out of phase. Problem is it's not exactly the same, and it's not completely understood if & how that matters. a perfect inverted wave will certainly cancel -it just adds-, but these inverted (from the noise cancelling circuitry) is...
  34. O

    source for D03 solenoid valve with "Deutsch Connector" (lower height/clearance)

    I need a D03 manifold & valves with slightly lower height. The common style with "DIN" connectors is typically about 6.5" tall - slightly too tall to fit where I'd prefer to mount it. The best option I've found would be these, with "Deutsch Connectors". The lower total heigh, around 5.5"...
  35. O

    why does using FEL stop Power Beyond flow

    Correct, totally get that. the moments where a cylinder is bottoming out and the OP valve would activate are a tiny fraction of the entire cycle of operating the system; so this is more functional for my use just considering the grapple use. However, it gets even more important if I am able to...
  36. O

    why does using FEL stop Power Beyond flow

    I do appreciate the replies, but no offense, but this is a pretty standard non-answer. Closed center is superior to open center in just about every way except cost. Which is why us small-tractor owners are stuck with it; manufacturers have more incentive to hit a price point, and even for...
  37. O

    quick-couplers - when are iso-5675 compatible with iso-7241-1 (A?)

    what I'm taking from this is the same as I came in with :) 1/2" will probably most likely work, but it may (will?) not be optimal. Ok, so having a small tractor I don't want to loose any more pressure drop than I need - there aren't that many fittings should I replace some. what fitting flows...
  38. O

    why does using FEL stop Power Beyond flow

    the example with gravity is a good one, except for the fact that the "bad" condition there is user-choice. If speed of movement on that one cylinder is the user's priority, then they would not operate a downstream function (because, as you say, the "backpressure" would interfere with their...
  39. O

    Can a pile of fresh wood chips spontaneously combust?

    our fresh piles of wood chips, one large utility truck's worth (maybe 5'tall, 8'wide, 12' long) would smoke, and be uncomfortably hot inside. This in a mild climate, with plenty of water, and never covered. I don't think you'd need too many variables 'worse' to get ignition: significantly...
  40. O

    quick-couplers - when are iso-5675 compatible with iso-7241-1 (A?)

    a few sources, including the Summit spec sheet, seem to indicate that it's not always a ball ... does this track your experience, or should all AG/5675 connectors use a ball?
  41. O

    Posthole Digger Best Value Compact 35hp 3-Pt PHD?

    slightly smaller tractor than you (but I only bought the 2610 to avoid tier4 ...) most of my implements are brand names, but for the PHD I did go tractor-supply / country line https://www.tractorsupply.com/tsc/product/countyline-3-point-post-hole-digger-602377 I've been happy with it. My soil...
  42. O

    bucket tooth bar: EA wicked root ("continuous tooth") vs standard tooth design

    Trying to make sure i understand how this is different/better than a box blade: If you are not using the "reverse direction scraping" feature (I wouldn't either, that seems marginal unless you have a really tight space; even then, FEL + float?) so the only difference (if you use...
  43. O

    bucket tooth bar: EA wicked root ("continuous tooth") vs standard tooth design

    So the ROBB does forward-scraper and reverse scraper ... but in scarifier mode the tines are behind the blade?
  44. O

    Controlling A Hydraulic Solenoid valve With PWM

    Here's an analogy that is surprisingly accurate. Stand at a teatherball pole, hit the ball repeatedly, trying to keep it, smoothly, at a specific height/distance from pole (straight out, not in a circle) Small, well timed taps of the appropriate force... if you could tap VERY fast, you could...
  45. O

    Controlling A Hydraulic Solenoid valve With PWM

    That is 100% correct. The input is digitial (pulses; anywhere from 100's to megahertz depending on app/industry - idk what hydraulic proportional valves use, kHz would be common in general) The output is a "transfer function" (systems speak)**, which quantifies how a particular input will...
  46. O

    Controlling A Hydraulic Solenoid valve With PWM

    Turbo comes from the old days when plenty of software (especially games, but also office sw) was coded with certain expectations of the processor's specific clock rate. The "turbo" button just made the cpu run at its actual full speed, which "non turbo" essentially a compatibility mode. or...
  47. O

    bucket tooth bar: EA wicked root ("continuous tooth") vs standard tooth design

    What are ROBB (_ _ box blade?), LPGS?
  48. O

    D03 valve -vs- manifold flow rates, and series flow route

    Thank you; that confirms how i was thinking about the flow, and would be an improvement over the existing remotes + additional remote/grapple The biggest sticking point now is size - D03 fits great, D05 is nearly twice the size :( which would be tough. I guess all the off the shelf versions i...
  49. O

    D03 valve -vs- manifold flow rates, and series flow route

    the other part of my question is flow pattern IN the manifold - are the valves in series? The datasheet confused me - the header says "parallel circuit" (not what I want) but the model number has S in it (circled, purple) - not defined in Hyvair's doc, but at some distributors this is called...
 
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