Excavator hydraulic thumb valve location. I have no idea what it is for.

Excavator hydraulic thumb valve location Nov 10, 2021 · I just bought a JD 230clc. Hydraulic thumbs increase flexibility with a wide range of motion and provide load control with easy opening and closing. Mine was factory plumbed and has a changeover valve (for breaker vs thumb as I understand it) and that has an adjustable relief but doesn't seem to affect thumb cylinder relief as I thought it would. Last thing Aug 7, 2022 · Hi There, I recently bought a John Deere 690E LC excavator. , with some that are quite heavy. I've used electric over hydraulic and hydraulic over hydraulic thumb systems. The Volvo hydraulic thumb opens a whole-new-world of productivity in your compact excavator. Nitrogen is good, chisel point down etc. This machine does not have an aux valve on the The latest hydraulic oil filter offers high-quality filtration performance, features anti-drain valves to keep the oil clean when the filter is replaced, and provides an extended 3,000-hour replacement interval for efficiency and convenience. I'm tapping into the open center supply line & tank return lines, going to a DO5 subplate mounted tandem center Directional control valve , then to a Double relief valve (cushion valve) and then to thumb cylinder (double acting) Dec 19, 2023 · Transform your equipment with Gorilla's hydraulic plumb kits! Run hydraulic attachments seamlessly on your backhoe, mini, or full-sized excavator. Sounds like what your saying is The easiest and fastest way to get more capability from your excavator is to install a Hydraulic Thumb. Option spool for thumb: 30lpm (7. Apr 8, 2018 · X2 on the auxiliary circuit needing to be bi-directional . scheduled maintenance parts greases planned maintenance Aug 16, 2017 · I have a Takeuchi TB135, 2007 year, Purchased a thumb and have a couple of questions, how do I check and adjust the auxiliary hydraulic pressure? The instructions say to adjust the pressure to 1700 psi, where would I find the adjustment? The machine has a valve on one of the auxiliary lines but Page 129 CONTROLS ACCESSORIES Selector valve Third auxiliary hydraulic switch and button (If equipped) Open . I never bothered to lower the pressures on anything. Nov 11, 2024 · Cat’s first off-highway truck, the 769, arrived in 1962, and its first hydraulic excavator, the 225, appeared in 1972. Page 14: Engine Oil Mar 3, 2022 · Well this was a small video I thought id share. I have no use for a Jackhammer. MXHT – MX Main Pin Hydraulic Thumb. I see the question come up all the time about do you need to adjust or not. We use hardened steel pins, and thumb has protected grease fittings on all pivot points. Machine details: 1995 Se210-2 Pilot pump: Flow rate 21 Lpm (5. Custom 2. The Geith Mini-Excavator Hydraulic Thumb is available to fit excavators ranging from 2,000 to 20,000 pounds (1-10 tonnes). It sounds like the auxiliary valve section port relief for the base side of the thumb cylinder is stuck open or leaking. The supply fluid is connected properly. Installing a thumb on a Takeuchi TB016 Section for hydraulic thumb has an overload valve listed, p/n 1901736200. I'm a excavator newb so go easy on me. If it is in the one way position the thumb will only operate in one direction. Took the caps off the lines on the dipper and installed the couplings, threaded to the cylinder and decided to test the cylinder functionality before going any further. 5 gal) @ 470psi. I am having problems with my Kubota KX 121-3 excavator thumbs. Feb 25, 2020 · Hello, first post here but I've been following along for a while. Mine does not have a spring mechanism that returns the directional valve. The hoe pack works great but can't get the hammer to move. The bucket needs to be able to move the thumb by opening the relief in the thumb circuit. Call Us Now: 770-862-4653 Oct 28, 2022 · If memory serves, according to your schematic, one of the hoses goes from 5A2 to a manual ball valve on the stick (one incoming line into the side valve, one line out of the top of the valve to the dipper stick, another line going out the other side of the valve and back into the body of the machine and I "think" to the tank). Prior owner had JD install a hydraulic thumb. Apply battery voltage to the thumb solenoid to see if you can manually control the solenoid by applying power which would further confirm a problem on the control side of the circuit Mar 18, 2014 · OK did a little research in my technical manual, the 690b is a open center system, 2500psi max, 18GPM. At some point the cylinder got damaged and thrown out. For diverting existing two-way flow from machine extendable stick, stabilizers, offset boom, or front blade (mini-excavator) to hydraulic thumb option. Crossbar support tubes go through the tines and are welded on both sides, unlike some of our competition. Someone added a thumb, but I don't think the plumbing is right. If they look good, you will want to contact your Cat dealer for the auxiliary port relief valve testing and adjustment procedure. Feb 10, 2019 · I have a 2013 IHI 35vx-3 excavator that I just purchased. Good Luck! Mar 29, 2022 · make sure the kubota excavator kx 121-3 thumb valves are not stuck or binding. Im guessing there is a way to display any codes Feb 5, 2012 · I have the same machine (Komatsu pc78mr-6) and need to dial down the relief pressure for the thumb as bucket curl doesn't overcome thumb. For now we will focus on a typical hydraulic thumb setup and how it works. I'm thinking the On a backhow you can power a hydraulic thumb by utilizing the hydraulic circuit for stick extension, stabilizer or a lesser used circuit. A Hydraulic Thumb makes it easier to pick, hold and move awkward material such as rocks, concrete, branches, and debris that does not fit Apr 18, 2019 · I’m also trying to add a thumb to my ex120-3 (same as the deere 490e). The installation came with a few unexpected surprises but in the end f Page 26 CAUSE HYDRAULIC SYSTEM DAMAGE Place the excavator with the boom and arm fully extended with the attachment on the ground before checking hydraulic fluid level. We used to install EELAC valves in open center hydraulic systems to run grapple rotate circuits. When using a reversible attachment that can quickly connect/ attachment (2-way flow) disconnect the bucket. Top quality thumbs designed to install easily on any size excavator or backhoe. Contact us at 1 (888) 814-6745! May 1, 2019 · Hey Guys. The type of fluid to be used depends on the ambient temperature. Now it is to the point where its stuck in the closed position and will not move at all. The part number I gave is correct and is preset to 2950 psi. Extremely versatile and reliable valve for use in the pilot system of your excavator. Having said that, I think a thumb make handling brush and trees a lot safer and easier. it is not currently plumbed for any auxiliary equipment. So I will be adding a third power beyond to run the thumb. Crossbar support tubes go through the tines and welded on both sides, unlike some of our competition. We use hardened steel pins, and the thumb has protected grease fittings on all pivot points. Now that its installed, I am having an issue where the thumb will slowly bleed down. I have 2 power beyond outlets on my tractor because the backhoe runs on one, and the grapple works on the second. We will cover all of the other thumb variations that are available later in this article. It has worked out reasonably well for a third-party stick-mounted thumb and I saved a ton of money over the dealer's TAG/Yanmar "pin-mount" hydraulic thumb. 0 °F). There is a diverter on each side of the excavator stick. Installed it on the extend side of the cylinder and plumbed to tank. When I purchased the excavator the previous owner had removed the thumb so I installed a new one. Pilot controls are a small hydraulic system that controls the large hydraulic system, kind like relay operation. Dec 23, 2021 / Mini excavator thumb - relief valve question #26 Dec 28, 2020 · Recently purchased a 2016 SK140SR that has some issues with the hydraulic thumb on it. These durable, versatile and wear-resistant thumbs can be used with any bucket, blade, or rake and deliver endless possibilities for your operation. Usually Allen head set screw and jam nut , that’s where you’ll set the relief pressure for your thumb base end . May 23, 2019 · Old trusty Cat E70B has a manual thumb, would like to make it a hydraulic thumb looking for information to plumb into the valve bank on this machine if it is possible. Tighten with open end wrench. Jan 3, 2020 · I recently got an old Komatsu PC05 mini excavator with a two-pump open system. The right hand control has micro switches that need to be wired to the electric over hydraulic values Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. 23 = 9870#. See image #2 & 3. Problem is I can't find info anywhere on the size I'll need. Adding a hydraulic thumb to your compact excavator simplifies many tasks, such as moving bulky items, picking up, holding materials, and placing them with precision The Diverter valve comes with a mounting bracket and bolts for easy installation and allows the operator to easily select between using a thumb or other hydraulic attachment. On my new machine, the valve for the Auxillary is a variable flow valve with a toggle instead of a full flow push button style. Top models include PC350LC-8, JMA MANUAL WELD-ON THUMB FOR KOMATSU PC300-3-6, PC270LC-8, and PC290LC-11 Mar 3, 2005 · I just put a CID hydraulic brush hog onto my Cat E-120 Excavator (28,000 Lbs) I Connected the lines to the thumb circuit (the Aux spool valve pilot lines are connected to an electric solinoid). The return hose to the tank could be very short if that release valve is located at the control valve. I was planning on putting it in where all the hydraulic valves are located and put it between the pressure hose and Hydraulic block and piping the blow off back to the tank. Hit open and it opens all the way (and stays there Jun 29, 2013 · Had the hydraulic lines made, had couplings, laser cut and welded the thumb, had a few cylinders- all set. This turn-key thumb kit fits Kubota KX71, KX91, KX121, KX033, KX040 and U35 mini-excavators using the Kubota factory quick attach system. Ensure that bucket does not touch thumb except at tooth and tip area. 0 out of 5 stars 2 $587. Jun 21, 2024 · Browse a wide selection of new and used VOLVO Thumb for sale near you at MachineryTrader. SN 7YF01328 We specialize in creating high-quality mini excavator attachments with superior fit and finish to meet our customer’s needs. With an AMI Attachments Hydraulic Thumb, your excavator goes from digging to complete material handling. Middle tines are shortened to help prevent interference with excavator boom; Rugged and durable design for years of trouble free operation; Includes manual thumb lock to store thumb tight to the stick; Additional valve required on machine to operate thumb Dec 27, 2019 · I have a komatsu pc150-5 that is not plumbed for a thumb. Use hydraulic oil which is suitable for machine. Five years later, the company introduced its influential D10 dozer with a new triangular-track elevated sprocket system. If only using a 2-way hydraulic thumb does the return flow simply go back through the main control valve? Or do you still need some sort of diverter valve like the breaker setup? 2. When you push the bucket against the thumb, the thumb valve is closed, the relief valve won't limit thumb cylinder pressure. May 20, 2021 · I am getting a thumb for my machine and need to set the auxiliary relief to 2200 psi. Oct 11, 2022 · We recently purchased a 1995 9020B. The steel lines coming out of boom are only 3 1/4" on center. ISO VG 46. So do 1 and 2 work the spool in the main valve bank? Jan 17, 2019 · Hi all, Wondering if anyone has ever done a hydraulic pressure adjustment on the thumb circuit on the above mentioned. Nov 30, 2023 · Material handling and excavating tasks are more efficient with an excavator thumb. The foot valve is a pilot valve with 4 ports- P,T,1,2. ISO VG 68. After installation, your joystick now operates the hydraulic thumb. Dec 31, 2021 · Not exactly. machine located in Fresno call and leave a Caterpillar 320 Hydraulic excavator auxuliary valve hammer thumb - heavy equipment - by owner - sale - craigslist View and Download Kobelco SK210LC-9 shop manual online. I think I can get away without a press relief valve if I just apply pressure to whatever I am griping with the thumb and not curl the bucket into the thumb. So I went with the external relief valve route. My other 3 excavators run the opposite control direction Nov 21, 2024 · Browse a wide selection of new and used KOMATSU Thumb for sale near you at MachineryTrader. Feb 16, 2013 · Be sure the quarter turn valve located next to or on top of the hydraulic tank is in the 2 way position, not the one way position. The hydraulic thumb is a sought-after attachment that helps a multitude of industrial processes to be more productive, efficient, and safe. BTW that trench is a little crooked The latest hydraulic oil filter offers high-quality filtration performance, features anti-drain valves to keep the oil clean when the filter is replaced, and provides an extended 3,000-hour replacement interval for efficiency and convenience. Jun 17, 2020 · It does have one power (out) port and a return (tank) port. Problem is the hoses for the thumb are smaller diameter than the hoses on the arm. May 7, 2017 · Each circuit should have a circuit relief for each direction. but I get the feeling I am about to learn. The problem is intermittent however, sometimes it works just fine for a few minutes and then stops working again. The Custom Edition LETSDIG18 - Progressive Link Hydraulic Thumb provides more constant pressure throughout the entire cylinder range. The latest hydraulic oil filter offers high-quality filtration performance, features anti-drain valves to keep the oil clean when the filter is replaced, and provides an extended 3,000-hour replacement interval for efficiency and convenience. I will be using the hydraulics from the hammer function to power it. Nov 28, 2020 · When you push the thumb against the bucket, system pressures might be limited to 3500 LBS. Very helpful forum! I recently installed a hydraulic thumb on our 2000 Cat 302. The U17 according to the Kubota site, has a two way aux hyd valve. Oct 10, 2007 · I installed an aftermarket hydraulic thumb on my Kubota U35 Mini Excavator. If you press too hard left or right it will kick the aux hydraulics. I've been using it for about 60 hours to pick up logs, rocks, etc. axd. I'm going to need two male adapters, one end to reduce down to the size hose on the thumb. It had a stiff arm thumb on it, but I have replaced the stiff arm with a double acting hydraulic cylinder and connected it to the jack hammer hydrualic lines. Manufacturers use "port relief valves" as a relief for this situation, perhaps 4500 PSIG. Oct 24, 2024 · Caterpillar 320BL hydraulic excavator in perfect conditions, readyto work auxiliary valve, hammer and thumb included everything in very good conditions. Reversing Valve 3 with Steering Gear, Excavator Loader Can Be Used! The Hydraulic 3-Way Reversing Valve Is Very Flexible and Compact, Which Is Used for Excavators, Loaders, Various Models, Scientific Experiments, Robots, Etc! 1/12 Excavator Can Also Use! Sep 4, 2021 · I have a late 90's Hyundai 210-3 excavator which has been running a hammer but i want to convert the aux lines over to double acting and run a hydraulic thumb. Hydraulic thumb. Only thing I can find is a 3 port adjustable relief valve Item # 9-7901 from Surplus Center. so if they were not seated in and operating at 3000 psi the thumb would fall on its own weight. Hydraulic Thumb Clip For Mini Excavators Attachments, Metal Grab Clip Thumb with 2*M14 Hoses for Single Hole Hydraulic Thumb Clip without L-Shaped Bracket 5. Given the construction of these cylinders, I am comfortable with that pressure, without using a work-port relief valve or crossover RV. And new deere dealer doesnt Style thumb with two laser cut ¾" steel tines and is 13" wide. 5 (4AZ01260) and have been reluctant to use it yet because I think we need to incorporate some form of relief into the system to avoid having the Nov 24, 2011 · I have purchased a cat 311b excavator. I want to have it on the bucket joystick and be easily reached by thumb or finger without moving hand off stick. But now I have a question that no one seems to be able to answer. Take two of the lines coming out of the valves and Hydraulic Excavator Thumb Kits Add grappling functionality to your excavator or backhoe with a hydraulic thumb. Feb 7, 2017 · The instructions say to lower the Aux valve pressure to 80% of the thumb cylinder rating. I have been unable to find a comfortable add on switch to power the electric selector / solenoid valve. Feb 3, 2004 · The thumb can push harder than the bucket, but is that a problem? If the thumb pushes on the bkt with 2270#, the resulting force on the bkt cylinder will be 2270/. I think it's a 1998? (but I haven't decoded the vin to check yet) I have installed a hydraulic thumb on the machine, now I'm looking for some help adding the aux hydraulics to the system. can someone help in directing me to the auxiliary ports thanks Kubota KX71-KX91-KX121-KX033-KX040-U35 Hydraulic Pin-on Excavator Thumb w/ Hoses. To turn it down I had to add a relief valve instead of the "shutoff" valve. Install the hydraulic fittings in both cylinder ports and in both valve blocks. Top models include EC460C L, JMA MANUAL WELD-ON THUMB FOR VOLVO EC35, JMA MANUAL WELD-ON THUMB FOR VOLVO EC330, and HYDRAULIC THUMB FOR EC240, EC290. The above pdfs helped but I still had a few questions. Connect the other end of each hose to the fitting located in the cylinder ports. Aug 28, 2024 · Just bought an AGT H12R mini excavator brand new at an auction. . Top models include HC 42/45/50, HC26/32/35, 7203200, and E3X EXTENDABLE ARM THUMB Mar 31, 2017 · Piloon,thank you for replying but I don't think I have room for the push-pull valves. Nov 25, 2022 · Some operators feel that hydraulic thumbs are the greatest attachments, enabling easy handling of various materials such as lumber, demolition debris, stone, and other bulky items. For machines with a single hydraulic circuit, this allows the circuit that operates the thumb to be diverted to a quick connect coupler that can run a separate attachment. 74 Feb 6, 2017 · I am looking at a couple of Hitachi's right now and once I buy one I really want to add a hydraulic thumb. 74 $ 587 . Original deere dealer didnt have the old info. To start, you’ll need to properly mount the diverter valve on your excavator. The port reliefs on your valve are located behind the spool caps (with the small hydraulic lines) and recessed in the valve casting, end cap does not stick above the valve casting. Customer: I recently installed a thumb on my komatsu 200-6. You might do a search on this site. The current flow is unrestricted from the option spool with just ball valves on the stick to close flow. Jan 25, 2024 · The hydraulic thumb for excavator and mini-ex equipment is a valuable attachment for operators, giving versatility to easily pick up bulky materials such as big rocks, debris, trees, and logs. I have a lot more clearing to do and can see the productivity of the hydraulic thumb and the progressive link. Most were manual with a handle that you turned to change modes. The relief valves in the loader or backhoe valve bank will not protect the thumb cylinder from damage when using the thumb. I mostly do pipeline work and don't like the extra weight swinging out there. The valve comes with a bracket, offering several mounting options based on your excavator setup. 9870/piRsqd = 3140psi. My plan is to take the quick couplers off and connect a valve onto each one of the steel lines using -10 JIC bulkhead fitting. Our thumbs are manufactured by Amulet, one of the best known names in rigid and hydraulic thumbs. Just adding a "t" leaving the control port and installing the release valve with the the overpressure to Verify power going to the control valve solenoid for your thumb circuit when engaged and look for any damaged wiring going to the control valve solenoid as well. That is used if the excavator is used with a hydraulic breaker. I have a new to me bobcat 435 mini excavator. DIN 51524 PART 2 HV) Hot climates: 0°C to +50°C (32° to 122° F) CASE/AKCELA: AW HYDRAULIC FLUID 68 HV (MS 1216. The boss wants a joystick with the thumb on a button. 9 gal) @ 4979 psi. Is there any way for me to swap the direction of the aux hydraulic (thumb) buttons on my 2013 Volvo EC160D? I would just like to make my pedal and thumb switch control the thumb in the opposite direction that it currently runs. Feb 10, 2022 · medium hydraulic excavator 320, 320 gc, 323 parts reference guide serial number prefixes: zbn, dkj, ybl, raz. Apr 13, 2014 · I have a cat 305cr i installed a thumb a few months ago, I had it operating at 3000psi and it was damaging the thumb. Relief valves for the aux hydraulic circuit: Image #4 is taken with the top step/guard removed. I'd like to use the system to operate a hydraulic thumb instead. If you do not use Jul 8, 2017 · Follow the lines from the thumb cylinder back to the control valves and see if there is a three way valve between the main control valve and the base of the boom. The most common thumb setup is a hydraulic thumb, or to be more specific a main pin hydraulic thumb, which is probably the most popular setup overall. I wired a switch that keeps the fluid flowing. Purchased an OEM John Deere male coupler and a Parker female coupler from Ebay. NOTE: Hoses or hydraulic kits are NOT included with purchase of thumb . Inspect the aux valve section port relief valves for damage or debris. SK210LC-9 excavators pdf manual download. All hydraulics work well except an issue with the hydraulic thumb, and I would love to hear your thoughts before digging into it. I got spoiled really bad clearing property with a Cat 323F rental with a progressive link hydraulic thumb. surpluscenter. 9. Appropriate for the Kubota KX71, KX91, KX121, KX033, KX040, and U35 mini excavators using the Kubota factory quick attach system. 2) a true additional hydraulic circuit. Amulet hydraulic backhoe thumbs feature an independent main pin and universal two-tine design. The 35d already had the auxiliary hydraulic plumbing with Faster couplers. 950205-06281 EX1505097 EX1505098 950205-06282 EX1505099 Safety DX140R/DX140LCR 1-16 Mar 5, 2016 · I've had a machine with a manual, one with a hydraulic thumb and my newest machine has no thumb. Location United States Use Pressure Within 5mpa. Brandt’s hydraulic thumbs are the optimal attachment for construction, road construction, forestry, and mining applications. Also make sure you knock that circuit relief down to 2500 psi or less. Kubota KX71, KX91, KX121, KX033, KX040, and U35 Hydraulic Pin-on Excavator Thumb w/ Hoses This complete thumb kit fits Kubota KX161-KX057-U45-U48-U50-U55 mini excavators using the Kubota factory quick attach system. Thumb. Picked up this Mini Excavator Hydraulic Thumb kit on eBaY to install on the Deere 27D. Im now trying to replace the cylinder, but no one has a clue what size or manufacturer. Aug 26, 2024 · Installing a hydraulic thumb on your micro excavator involves careful alignment, secure connections, and thorough testing to ensure everything operates smoothly. Some times these are an additional spool valve and some times a solenoid valve with a switch mounted on one of the levers. At first it had no clamping force at all. The 416, Cat’s first backhoe loader, came in 1985. I know what to do but can’t locate a D03 solenoid operated directional control valve that Meets the specs required. Featuring both direct and coupler mounted models, these thumbs can be installed on a wide variety of mini-excavators. It does not have relief valves on the AUX ports from the factory and they are very pricey from the dealer. 14 hours ago · Browse a wide selection of new and used Thumb for sale near you at 2021 AIM BACKHOE / EXCAVATOR THUMBS. Stucchi offers excavator hydraulic kit solutions with heavy-duty, leak-free hydraulic couplers and a mounting bracket that keeps lines clear of any possible damage with a 45° mounting kit. 8. I've heard many hammer systems only send fluid one way, which obviously won't work for a thumb that needs to retract as well. 0 °F) to 40 °C (104. Quick and easy bucket changes on your backhoe. Im also getting a message on the screen saying "Selector Valve Failure". Oct 14, 2010 · The auxillary circuit has a relief valve to prevent damage, however it may not be set to the correct pressure for thumb application, which from memory should be 75% of the pressure in the bucket ram. There are many different ways the diverter valve can be mounted on an excavator. The only problem is that the pressure is full and not regulated. Hydraulic Shared-pin Thumbs for any weight class of excavator. If your thumb is all the way open, that means your cylinder is completely collapsed. I have no idea what it is for. The hydraulic motor will not come up to speed. Now, try using your hand as you normally would to pick up items with a mobile thumb. The bucket toward thumb until thumb and bucket meet. The hydraulic cylinders on the thumb are binding and not allowing the thumb to open properly. Perfectly matched for use on Volvo machines and the different attachments which they operate, the thumb delivers the flexibility and control needed for optimum results across a wide range of applications. Well if you don't want to bend yo This kit comes with everything needed to install a thumb on your Kubota machine and get to work. Features include: #shortsA common problem in an excavator's Auxiliary Circuit that is used to operate attachments is the Exessive Pressure left in the hydraulic hoses and pipe l Reduced-drift valve for boom down, ar l Auxiliary hydraulic valve section l Spring-applied, hydraulically released automatic swing brake l Auxiliary hydraulic-low adjustments through monitor l Auto power lift l 5,000-hour hydraulic-oil-change interval l Auxiliary hydraulic lines with hand-contro roportio ontrol s Load-lowering control device Jun 30, 2020 · 3-way valve on the right side of boom: I do in fact have a 3-way valve on one of the two aux lines as they arrive at the base of the boom. To buy two pressure regulators for the Rexroth sx14 valve would be $700. One other thought is that your machine might be set up for combo hydraulics which is a short hand title letting you know it will work a hammer or compactor in one configura Apr 18, 2008 · Anyways, just had to say it works good, I want to add a hydraulic thumb to it. Here is one example: https://www. How can I run the thumb sitting on the backhoe seat and not having to turn around and grab the According to the parts diagram, the thumb (auxiliary) control valve section of the main control valve is pilot controlled. Other than that the valves are pretty similar. May 8, 2019 · I have a Kubota KX040-4 Mini Excavator with a hydraulic thumb. Some have an electric solenoid valve instead. 2025 EAST ATTACHMENTS PIN ON HYDRAULIC THUMB Feb 28, 2021 · The other thing would be the loader valve location would create a need for longer hoses to reach the back of the backhoe. Recently I purchased a 28 inch thumb which welds to the bucket arm and has an extend and retract two way hydraulic cylinder. Nov 16, 2015 · OK, a little more research on my part. CASE/AKCELA: HYDRAULIC EXCAVATOR FLUID (MS 1230. Depending on your system, you can tee off the main pump output and put an electrically controlled valve in to run your rotate. Oct 16, 2022 · Compact Excavators . The proportional capability gives precise control that will be appreciated when operating thumbs, shears, or rotation circuits. Jun 1, 2008 · That is correctin a perfect world I'm looking for the bucket to push the thumb back in. I think P is pressure and T is tank or return. Some excavators you can read the pressure in the instrument cluster. Main pin (direct mount) mounting for superior control and accuracy Nov 30, 2022 · An excavator thumb kit provides hydraulic plumbing solutions for this versatile attachment used in a wide range of industries and applications. I adjusted the valve so the thumb would just barely push the bucket back. DIN 51524 PART 3 CATEGORY HVLP) Cold climates: -25°C to +20°C (-13° to 68° F) CASE/AKCELA: AW HYDRAULIC FLUID 32 (MS 1216. The hydraulic thumb spent most of the time in the corner of the shop. I've picked up a used NPK-2 hoe pack and hammer a while back. The foot pedal controls a pilot valve which controls the Auxiliary section of the main control valve. Connect one end of each jump hose (furnished separately) to the fitting located in each of the valve blocks. FEATURES: Quick & easy to install; Line bored & fully bushed pivot points to significantly extend product lifetime; Check valves fitted as standard (essential for no play when not Mar 30, 2018 · I am in the process of converting my manual thumb to hydraulic thumb on my 18klb excvator. Serial Number 8HR02357. They capped off the metal 3/4" main return line from the valve bank and took power from that to the thumb valve, and from that valve back to the tank Mar 3, 2021 · I've got a Komatsu 12 ton excavator with hammer piping, but it's never going to run a hammer ever again. Need to hook up a guage that will read the pressure in the thumb circuit,most factory thumbs have a 2500 or less max pressure. Jun 26, 2012 · Unless you would have a hold valve on the cylinder, the control valve is what keeps the cylinder from moving when not in use. The machine I need the valves for is a 2 ton Bobcat E20 mini excavator. May 6, 2023 · We install a hydraulic thumb on my samsung 130 excavator. It is equiped with a foot control and the aux hyd lines at end of boom for a jackhammer. May 16, 2018 · This is where a hydraulic function is diverted (disabled) usually using an electric switch connected to a solenoid valve to allow the thumb to function in place of that function. This hydraulic diverter kit was designed to work with all Amulet hydraulic thumbs, will work with many other thumbs or hydraulic attachments of similar hydraulic flow rate and pressure. Temperate climates: -20 °C (-4. Browse a wide selection of new and used BOBCAT Thumb for sale near you at MachineryTrader. You don't want the smaller flimsier cylinder of the thumb to try and compete with the bucket cylinder. May 24, 2012 · Hello, I am planning on adding a hydraulic thumb onto my JD 70d excavator. The machine only had one way hydraulics, so I had to install a two way electronic valve amongst oth Aug 19, 2021 · I'm adding a hydraulic thumb to my Volvo EC25. The Kriss Solutions Excavator Power Thumbs are available either as Mechanical Excavator Thumbs or Hydraulic Excavator Thumbs for machines in the 1- 30 Ton size range. It also sets a code 22 for left or 24 for right solenoid shorted. We would like to add a hydraulic thumb. Jan 25, 2020 · I have a 2006 John Deere 35D mini excavator that I use on my ranch. Having watched several videos on how control valves function, I'm betting I have a bad coil, a bad control switch on the control joystick or some sort of electrical short which continuously sends electric to the coil to close the hydraulic thumb. Jan 20, 2010 · Sodo ,My opinion what if you add the adjustable release valve (like the one you showed) on that pressure hose that is pushing pressure fluid to your cylinder for the extension stroke . I also purchased a hydraulic thumb for this unit. This valve diverter is turned with a wrench to alter the flow. 1. Powerclamp is a solidly built hydraulic thumb for backhoes and excavators. Jul 5, 2010 · Quite a while back now, I purchased a third-party hydraulic thumb for my Yanmar VIO35-3 mini-excavator. This double-acting valve also works well on single-acting circuits as well. OEM-style thumb with two laser cut ¾" steel tines and is 13" wide. Nov 26, 2020 · Hello all. I highly recommend using a stabilizer circuit for a thumb. HYDRAULIC EXCAVATOR. The thumb functions fine via the toggle on the joystick. I don't think you will find a description of setting a auxiliary circuit relief on a Cat excavator anywhere else. While in use the thumb will be shut off. Connect hydraulic hoses and check rotation of cylinder to make sure there is no interference with the bucket or the stick. Oct 20, 2017 · Now, try taping a splint to your thumb and working with your hands while your thumb in a fixed position so that you can't move it - there is the efficiency of your fixed hoe thumb. There have been quite a few times I've picked something up with the bucket fully extended and then extended the thumb to grab it. 5" bore hydraulic cylinder to fit your factory mount located on the stick. When using a hydraulic breaker (1-way flow) The auxiliary 3rd is mainly used for the Closed . Hooking up a hyd thumb would have required a diverter valve. All components are fabricated in Georgia with steel made in the USA, which means we can get it shipped to you in about three days - not three weeks. The thumb valve had 2 shutoff valves in it. Amulet POWERCLAMP shared-pin Excavator Thumb – Weight Class from Hydraulic fluid CASE AKCELA HYDRAULIC EXCAVATOR FLUID is specially designed for high pressure applications and for the CASE CONSTRUCTION hydraulic system. Im not worried about the speed of the thumb, but would that inhibit the speed of the bucket curl? Sep 30, 2024 · Mount the diverter valve on the excavator with the included bracket. The Hydraulic Thumb Simplifies Lifting and Moving Tasks Using a thumb attachment on a mini-ex or full-size excavator simplifies a variety of tasks such as picking up… Apr 3, 2013 · Some excavators out there just rely on the work port relief valves for this purpose and those will dump to the tank as well. If the seals in the cylinder are bypassing, the oil will go from one side of the piston to the other. I plumbed the cylinder thru the auxiliary hydraulic circuit that came with the machine, but the circuit does not come plumbed with a relief valve so I went to the Kubota dealer who will sell me a relief valve for $500 Sep 3, 2018 · Most auxiliary flow valves on excavators run half pump flow if a single pump or single pump flow if a double pump. Is it as simple as installing a gauge on the excavator auxiliary hydraulics (at the quick coupler) and operating the auxiliary valve and adjusting pressure accordingly for each side? Feb 21, 2024 · Where is the adjustment located? First step is to locate your thumbs control valve in your main valve stack and see if it has port relief valves. com/Hydraulics/Hydraulic-Valves/Relief-Cushion-Valves/1-2-NPT-30-GPM-500-1500-PSI-HYD-CUSHION-VALVE-9-4019-50-L. com. Jun 11, 2018 · Looking for some help with aux hydraulic thumb problem on our 2007 KX121-3 Mini. The thumb achieves more than 180 degree rotation which makes it easy to reach and pick up objects that are close to your excavator. This is one of the many Stucchi solutions we have for mobile construction, just contact your Stucchi representative for more information. When you activate the auxiliary thumb it works if you lightly work the rocker switch on the control to the left or right. Is it feasible for to put a diverter valve on the stick and switch hydraulic flow from curl to thumb to adjust thumb? There is a valve on ebay for only $100 that is rated for 13gpm. May 7, 2017 · The easy, sleezy, and dirty way to do this would be to put a crossover relief valve in the lines to the thumb, close to the thumb. Custom 2 1/2" bore hydraulic cylinder to fit your factory mount located on the stick. Jul 11, 2021 · My thumb is controlled by foot pedal and I’m looking to convert over to a Joystick toggle switch. Apr 18, 2014 · We just we just got a Zaxis 135us and the thumb uses a foot valve that the book says is for a breaker but it works fine. Following these steps will help you get the job done safely and efficiently. The Heavy Equipment Mechanic I'm going to connect you with knows all the May 27, 2019 · That serial number should probably be XER00200. If you need more help from what our listings offer, please call Equipmentland right now. kumwjbd pdcze kcxbh zqtbrh ykft shhxy sykbdgqcv mafc yhtxf rjn rybfnp nxiic sojrej zwjfxn kjjog