Hydraulics stalling engine.
Aug 25, 2017 · Mahindra 4110.
Hydraulics stalling engine. Whether you're running loaders, excavators, or dump trucks, hydraulic cylinders provide the muscle to get the job done. It started stalling when the hydraulic pump was under load. If the hydraulic oil temperature rises due to continuous machine operation, it may cause cavitation in the main control valve, resulting in reduced cylinder output and possible stalling of the engine. I have replaced all fuel lines Mar 18, 2025 · Hey everyone, I am trying to figure out an issue on my 2001 Bobcat 341D. May 7, 2024 · The stall torque must be higher than the break-away torque but must be limited for the safe operation of the equipment and/or the limitations of the motor. Dec 31, 2014 · When the QC's are separated, an internal ball in each half seals the port and keeps fluid from leaking out. The rpm of the motor increases only when we track or operate the bucket. Start engine, engine at idle, and tilt bucket up. has started stalling the engine when driving ahead or turning. When I try to lift the front end of the tractor up with the loader the engine stalls. Mar 28, 2019 · I have a 96 Komatsu Pc200-6 that had a dead cylinder when I purchased it. When the QC's are put together, the balls push against each other opening both ports for fluid to flow thru the line. I can excavate only with the tip of the bucket. Is engine idle speed correct? If it is to low, the engine will stall. 3-Point Hitch issues 4. Its like the engine is being loaded by the pump yet nothing is being used on May 17, 2024 · Cat 320C- hydraulics stalls the engine loaded or unloaded and at an idol or wide open. Post your comment, question or opinion. Apr 7, 2020 · The set pressure of the main release valve and the door release valve, and the pressure of the operation release valve is lower than the standard value. And, are more likely to occur, during cold weather or when starting a cold engine. If I try deeper, it stalls. When the boom is retracted or the boom is dropped the hydraulics will overload the engine to the point were the engine will stall. All filters fuel and hydraulic Dec 11, 2016 · hi guys , new to this great site , hope some one can give some advise pls. I have heard of issues with the pressure relief valves but not sure if that would cause the engine to stall. Or track. New filter, 10w30 oil and bought the HTO additive as well. Assuming you have the original touch control rather than an external system, the bypass should open before it builds that much pressure. Other possible causes include issues with the idle air control valve, the vehicle's transmission, or the throttle position sensor. It just doesn't seem to be working very hard Mar 15, 2024 · John Deere 2154D (hitachi -3 zx250 size with Deere engine) stalling engine when operating hydraulics at low rpm. The minimum maintenance procedures of the excavator: 1. Sep 5, 2014 · I'm having some issues with my 320B excavator and here are the symptoms: Little or no response on all hydraulic functions. The hydraulics are slow compared to other machines I've ran. The engine will not pull down or smoke. Engine stalling occurs when pumps are not properly de-stroked, causing excessive load. The issue Im having is as soon as the Ram see's any load the Engine almost instantly dies, its within a second, two max. Explore common causes like air-fuel ratio problems, sensor failures, and ignition issues at RepairPal. It also happens with every other movement. And so, after deciding to "join the hydraulic brotherhood", every rookie learns what parts these motors have inside, how they generate torque, that there are unidirectional and bidirectional gear motors with their peculiarities, how to service these units (read - replace seals) and the Oct 2, 2023 · Total guide to diagnose and fix problems with an engine or car stalling and not starting, including most common causes and easiest solutions The SE130 LC-2 uses one electrically controlled pump with a solenoid and another hydraulically controlled via piping. First, is the hydraulic oil level correct May 10, 2013 · All of a sudden I am now experiencing loss of hydraulic power followed by the engine stalling after using it for about an hour. However, I would usually back off, since this is poor technique and causes pump cavitation, so I can't say for sure. But like any hard-working component, they're prone to wear and tear. Learn quick fixes and maintenance tips to keep your splitter running smoothly Jul 7, 2009 · I have a Hitachi EX120-1. Hydraulics stalls of compressors may have been the cause, although the term stall has a wide range of use. If the timing belt or chain skips a tooth or more, the engine can and often does stall. Check the hydraulic pump’s pressure and flow rates for drops under load. but this does not happen when the levers pull little (for slow movements). It will overload to a small degree when the boom is lifted but not as bad. An instantaneous stress relief, free of charge. Regen issues 2. Make shire the throttle is operating first. Stalling torque is how much torque it takes to stop the motor. If I am running low idle or even mid rpm range, I have a problem where the motor will not keep up with the demand and if I don't let off the sticks it will eventually kill the motor. Excavator working excellent when cold, but when warm up, hydraulic stalling engine Just to clarify, you say "Hydraulics stalling my truck when raising liftgate" but then say "Im thinking the electric pump is done, but not sure yet"? So is this an electric pump operated lift gate, or an electric solenoid controlled hydraulic gate running hydraulics from your steering or other pump? Jan 26, 2013 · Hi guys I am trying to pick up the pieces on a pump repair. Which are we addressing? Dead-heading is caused by inhibition of 9020B often faces engine bogging and reduced power during hydraulic system warm-up phases. It travels perfectly, no problems. At a decent throttle the hydraulic system will not stall your machine, the drive system has enough load to be able to stall it though. The engine was removed prior to the start of my channel. If it doesn't go to full throttle under load, the problem could be in actuator or controls. Mar 9, 2023 · Hello. Thank you 2005 Case CX210 Electrical Issue Causing Hydraulic Stalling CX210 users often face auxiliary hydraulic lockup and engine stalling during boom or bucket operation. Mar 14, 2023 · What Causes a Car Engine to Stall While Idling? A car can stall while idling due to a defective oxygen or mass airflow sensor. A rough running engine can exhibit various symptoms, including unstable idling, engine stalling, and poor acceleration. When I'm running the hydraulics, the engine is bogging down and dying. After working the machine for 3-4 hours, the engine rpms start to drop when putting a load on the hydraulics. May 24, 2025 · There are many reasons why a car might idle low and stall. It does it when machine is hot or cold. It seems more like a hydraulic problem to me than fuel as the engine sounds fine when no load is on it. JCB 541-70 hydraulics stalling engine View previous thread :: View next thread Forums List -> Machinery Talk Message format Flat Threaded Nested A1an Posted 4/22/2022 16:49 (#9626621 - in reply to #8334012) Subject: RE: JCB 541-70 hydraulics stalling engine May 4, 2013 · Is that normal? I fully flushed out the system of hydraulic fluid when I picked it up last year. I'd have to look which fuses are involved but just check them all, both in the cab and the enginge fuse panels. However, there are two fuses that if they blow will cause the engine to die when the aux hydraulics are engaged. it will eventually lug and then run for a while until stalling out under load. Aug 2, 2010 · I was asked to run a Hitachi excavator for someone who clearly had no idea of how to operate or maintain what they own. Mar 21, 2007 · Toyota -Maxing out hydraulics stalls engine. May 13, 2010 · I have a pretty good understanding of hydraulics, but have never seen the inside of the one on my Bobcat. An electrical fault can cause the auxiliary hydraulics to remain engaged, preventing release and leading to engine bogging or stalling. Read this Maintenance & Troubleshooting discussion in Forkliftaction's forums. But it just doesn't seem right that I can stall the engine operating it because it bogs down under load when hot. The present invention relates to hydraulic systems that independently control the operation of a plurality of hydraulic actuators on a vehicle that is powered by an engine, and more particularly to such hydraulic systems that include a mechanism which prevents the engine from stalling when the hydraulic system suddenly demands increased power from the engine. I have no forward or reverse on right side and very erratic drive on left side. Anyway, the machine did seem to be "lacking force" as the hydraulic pump was stalling the engine whenever a rapid movement was requested. Because it is a gas engine, check the timing also. Ive tried holding the throttle fully open and running at When hydraulic issues occur in hydraulic pumps, the pump is one of the first components changes out, but it should be the last to avoid a time-consuming, expensive process that may not be necessary. Any thoughts? M Jan 27, 2020 · Engine stalling when on steer lock, same with mast hydraulics. At the same time, the engine started to run hot, and the hydraulics became really fast. Hydraulic cylinders are the workhorses of heavy equipment. Additionally, the idle air control valve, throttle body, fuel system or transmission could be to blame. While running, each time I put the hydros under load the engine would bog down or stall all Dec 4, 2015 · If the variable valve timing is incorrect, it can cause the engine to stall from over-fuelling or starving the engine of gas. Could also be a QD not connected correctly, or malfunctioning. Starting torque refers to how much turning force can be generated by the hydraulic motor from a dead stop. Behind each ball is a spring. Jul 15, 2013 · To be more precise, running the PTO will stall the engine after a while if it runs without load and the fluid gets hot. Check the angle sensors on the pump and make sure they haven't moved, if they go over voltage they will shut off the hydraulics. Ive stripped the Carb and its clean and free moving, Ive tried running the Engine with the Air Cleaner removed and it makes no difference. Blocked Ventilation: Any blockages in the air intake can cause a buildup of pressure and lead to stalling. I installed a gauge into the charge Plus - it was a ten-minute drive from our shop, which is a luxury one doesn't get every day. Dec 7, 2018 · What does it mean when a pump stalls? I could not find a useful explanation with the search terms pump stalling and hydraulic pump stalling. also tested both the high speed solenoids on I have a JCB 541-70 that has a hydraulic problem. Jan 20, 2006 · The . Hooked up a cylinder, but each time I tried the hydraulics, they killed the engine. It's a EX75 UR with blade, intermediate joint on the boom and steel tracks. So, the hydraulic system of the excavator was stalling the engine when a cylinder would hit the end of travel, even with the engine revved up. Almost like putting something in forward and reverse at the same time. There are several tests and measures that can be taken to secure the health and wellbeing of your valuable pump equipment. In this article, we'll walk you through some of the most common hydraulic cylinder problems in heavy equipment and, most importantly, how to fix Mar 29, 2022 · 3. Is the port relief valve, and the anti-cavitation valve one in the same ? The mechanic sort of seemed perplexed when I asked about the anti-cav, and he immediately started talking about the port relief. My mechanic calls it dead-heading (of the hydraulic pump/s) when I reach the end of grapple travel, or get bound up in a stump. 5. Injector pump has been redone and all new injectors. Spark Plug is an NRK and looks clean and well gapped. Jul 20, 2017 · hello everyone ,I have recently purchased an 843B melroe bobcat (1992)for my acreage and my company , I bought it off the auction with a steering issue , The bobcat goes forward and backward with very small speed and the minute it hits an incline it can't go over it also more importantly the May 24, 2025 · A dirty or faulty IAC valve can prevent the engine from getting sufficient air, leading to stalling, especially at idle. Basic stuff seems ok. We have a problem with stalling the engine when we try lift to boom. Check the hydraulic pump for wear or cavitation and inspect control valves for sticking or leaks. But, my 13 year old vague recollection is the tractor would lug way Jan 16, 2013 · I mean just trying to lift the boom almost stalls the engine from mid throttle. Ensure the electrical de-stroking system activates correctly to reduce pump output under low engine speeds Many applications, from construction to agriculture, require working on steep grades. If the bucket does not tilt up, yet you have oil coming out of the hose into the bucket, the piston seal is done and needs replacement. The most common John Deere 3032E problems are 1. I know there is a torque limiter on Sep 21, 2010 · Have a CX210 with an Isuzu engine, works fine until it starts digging heavy materials then it basically loses power until it stalls. An engine stall could also be caused by an inadequate fuel supply or by a faulty fuel pump. New fuel filters and regular oil changes. engine seems to run ok and revs up ok and machine Illustrating a how to video series on my Bobcat 843 repair. Check the fuel filter for clogs and inspect the hydraulic pump for excessive drag. This problem started to May 15, 2013 · hi all, first post here. If the idle control valve fails completely, it may leave the vehicle without a source of air to maintain a proper idle. Sensors themselves can also fail Engine Bogging When Using Hydraulics: Key Causes and Fixes Hydraulic system delays and engine stalling during hydraulic operation are common in this model. They say the pump is bad and needs replaced. Changed the filters today and they were dirty. i have a 2006 new holland L170 pilot control model with about 2500 hrs used privately around my property. The top end of the engine doesn’t turn in time with the bottom end. usually won't affect exhaust, engine just slowly stalls out. In addition, engine stalling problems, can be External gear motors are the simplest and the cheapest hydraulic answer to many "simple rotating demands". It is important to note that most sensor problems will trigger the "check engine" light and store a diagnostic trouble code, which can help identify the specific sensor causing the issue. CAT has been out four times, from different dealers. Maybe an Got a 320 l that is stalling out when u use a function that pulls from both pumps Jan 29, 2020 · Kubota kx080-3 hydraulics stalling engine posrepair2013 Jan 29, 2020 excavator hydraulics kubota Prev 1 2 T Hydraulics will load an engine down, but should not stall it out once the engien is warmed up. There's no engine issues, I'm just not sure if this machine has a relief valve that needs replaced/adjusted. The geometry of most hydraulic motors is such that there are variations in torque as the motor rotates. Jan 3, 2014 · hi, everybody i got a problem with my hitachi ex120-2. 4. A stall might entail the stoppage of the engine. Loss of Hydraulic Fluid Pressure: Causes and Solutions The hydraulic system of earthmoving equipment is prone to issues that can hinder its operation. Do you think this is a powerplant issue or possibly a pump issue (ie, stuck at max displacement)? Oct 16, 2014 · Search this forum Printer friendly version E-mail a link to this thread LS tractors guarantee high-standard features and more warranties at affordable prices. Jun 14, 2018 · The excavator is well serviced, engine looks and works well, but when under load, the engine revs go down very fast, it stalls and there is no hydraulic power. Swing. I have Komatsu PC35MR2 2006, with problem with hydraulic pump. Dec 18, 2018 · For a hydraulic motor, there are three types of torque: starting, stalling, and running torque. Jul 22, 2017 · I'm not particularly knowledgeable aboit hydraulics, so consider the following as points for discussion: I think a little clarification may be in order. No leaks anywhere. Feb 15, 2022 · I would suggest you check pressures on the hydraulic pump if all functions are causing it to stall. Hydraulic issues 5. Hydraulic pressure seems to cause engine stalling on my old Doosan solar 330lcv excavator?? Consistently when warmed up. Oct 17, 2021 · I have a kx080-3 excavator when the bucket is open all the way the engine shut down same thing if I curl it all the way in. Battery issues 6. Air in system 1. Machine has been parked Mar 10, 2002 · On my original Moss Road Vintage (MRV) 425, I don't recall being able to stall the engine using the tram. In these situations, preventing the vehicle engine from stalling while maintaining maximum power plays an important role in optimizing machine performance and productivity. So, this kind of engine stalling problem, often means the engine is not getting enough, fuel and/or too much air. Jul 15, 2013 · Deflection is a short hydraulic cylinder and rotation is a hydraulic motor. The most common Kioti tractor problems are dull blades, problematic transmission, fuel system issues, hydraulic problems, engine issues, electrical problems, and PTO problems. The local JLG mechanic isn't convinced it's the hydraulic pump. Little or no engine lugging or power loss when hydraulics are used. Nov 20, 2014 · I believe this engine is made by Mitsubishi and is a mechanical fuel system, ( no electronic controls ). B's have a switch on the control valve that will shut the engine down if the aux hyd are engaged and you leave the seat. the engine stalls and stops when a lever is pulled to its maximum. Each put some strain on the hydraulics, but don't cause it to stall like loader work or mostly the PTO. Stalling Jun 1, 2012 · I wasn't sure if this was standard on these old machines because my newer JD just opens the pressure relief when you stall the tracks and that keeps the engine from dying/stalling. I would think that if there was an issue with the relief valve, that I just wouldn't move forward and the engine wouldn't bog down. i have tested the angle sensor and found it is o. Its almost as if the engine to transmission conenction is binding up and stalling the Jan 8, 2016 · 3. k. Check the fuel system from tank to separator to primary and secondary filter, all clear. Mar 7, 2009 · I have just purchased a Bobcat 722 and it runs very well and goes straight forward and back very well but when you try to turn, it almost stalls motor and does not want to turn very much at all. I checked the Stalling could also be related to hydraulic problems, such as mismatched hydraulic pump and engine power. Additionally, issues related to a vehicle’s throttle body or idle air control valve (IAC) can also induce a stalling condition. Engine bogging when hydraulics warm up can stem from hydraulic pump inefficiency or internal leakage. Mar 28, 2009 · I'd start by changing the fuel filter, make sure that the fuel primer is not collapsing while operatingthat would indicate a plugged fuel pick up in the tank or debris somewhere between the tank and primer causing fuel starvation. For example, if you have a carburetor, you may have a bad accelerator pump or power circuit. Check the fuel filter for clogs restricting flow. However, like most mechanical machines, your tractor is susceptible to breaking down from time to time. Inspect the hydraulic return lines and oil cooler for blockages or contamination. Mar 18, 2018 · Jump to page : 1 Now viewing page 1 [50 messages per page] Jump to forum : Search this forum Printer friendly version E-mail a link to this thread (Delete cookies) Engine stalling when hydraulics engage on the 314C often stems from fuel delivery problems or air intake restrictions. Episode 7 / Step ; Engine Install & Fi May 30, 2016 · Log Splitter stalling out. Troubleshoot common log splitter problems like slow rams, hydraulic leaks, and engine issues. What's happening is when u are running hydraulics its killing engine u dont even have to be digging if u run a cylinder all the way out of in and hold it for a second engine will stall. Professional repair equipment and valve group adjustments with specialized equipment are required in this case. The pressure of the main relief valve is too high. This has only started in the last month or so, previoulsy i could pick the front end up without issue. Mar 14, 2018 · See why your engine is stalling and learn how to stop it. Mechanic's Assistant: What is the complete model and serial number of your machine? Apr 30, 2025 · Troubleshooting an automatic car that stalls? Learn about common causes, from faulty spark plugs to clogged fuel filters, and discover quick fixes to get your car running smoothly again. I'm trying to understand what Elon's tweet means. Did the hydraulics come back after they stopped? If they did. He really needs a service manual because pressures could be different at different points. Apr 3, 2013 · I saw the same thing. Plus it's a somewhat complex closed center system with a variable displacement pump. The most common LS tractor problems are hydraulic issues, problematic starts, transmission problems, overheating, stalling, and steering problems. Check the solenoid valve function and hydraulic lines for blockages or leaks. BlackSmokeandMetal Mar 14, 2024 2154 hitachi hitachi electrical problems john deere B Feb 7, 2014 · Connect a piece of hose to the disconnected fitting on the cylinder, like a piece of heater hose slipped over the fitting, point the hose into an empty bucket. Indeed. A stalled hydraulic pump is one the following: Elon’s tweet refers to the second definition. There definitely would be more than one relief valve. Oct 27, 2019 · I have a case 1825 that while driving has a random hesitation in it. I have a JCB 541-70 that has a hydraulic problem. Dec 14, 2013 · My engine will stall if I try to lift a stabiliser leg past its stop at cold idle, but otherwise I don't have the same hydraulic issues as you and have no useful advice to offer (sorry). Click to expand. Yesterday, after a couple of hours of running I thought I was running out of fuel because the engine began to stall out as I Sep 21, 2022 · I have a 2012 Skytrak 8042. Aug 9, 2025 · Excavator Forum › Service & Trade › Excavator Repair Shop & Troubleshooting 1 2 3 4 5 6 … 41 Next » Hydraulic System Stalling in Caterpillar 320L Excavators: Causes and Solutions Thread Rating: 0 Vote (s) - 0 Average 1 2 3 4 5 Forum Jump: Users browsing this thread: 1 Guest (s) Aug 14, 2012 · Install a hyd gage and when all the levers are in neutral, see if you have any pressure on the gage, and if so, you have a blockage. i have drive problems that happened all at once. Aug 11, 2025 · Greetings all A friend has an XCMG XE60 with what appears to be a hydraulic issue?? The quick and dirty is a high load hydraulic command (IE boom up at full stick) will stall the machine! Traveling at full pedal in high range will stall the machine too. I have Apr 23, 2002 · Still trying to get the hydraulics going on my 240. This is called torque ripple. Dec 31, 2014 · Farmpro 2430, Hydraulics stalling engine? rprecision Dec 31, 2014 Views: 3759 farm pro 2430 Dec 31, 2014 / Farmpro 2430, Hydraulics stalling engine? #1 R Jan 29, 2020 · I am working on a kubota kx080-3 v3307 engine with 8k hours. Engine stalling when using hydraulics often indicates a fuel supply or hydraulic pump load issue. I rebuilt the engine last winter and ran it some clearing trees. Engine bogging when activating hydraulics often stems from fuel delivery or vacuum issues. You can be driving straight and it randomly hesitates and will drive crooked for a bit. One prevalent issue is leaks in the In this video we go over how to fix your your Chinese STE20SR Mini Excavator engine from stalling out while using the hydraulics! HUGE shoutout to Cam over a Clogged Air Filter: If the air filter is dirty, it can restrict airflow, causing the engine to run rich and eventually stall. Ensure hydraulic fluid levels and quality are optimal, and replace clogged filters. Problems with idle speed can indicate that something is wrong with your engine. The hydraulic oil level is incorrect. See Also: Code P0133 (Oxygen Sensor Engine stalling during dipper arm and boom operation often indicates hydraulic system overload or pressure drops. sounds like you may have a couple of problems. I does have an electric actuator to operate throttle lever on pump. to me it seems like hydraulic drive pumps are not getting enough oil. 3400 excavator users often face engine stalling during heavy hydraulic loads and sluggish engine response under hydraulic stress. The possibilities are limited by your imagination only. Lots of flow through the suction line from the tank to the pumps. Nov 17, 2012 · I bought this EX200 that had been sitting with a blown engine for several years and then some ambitious fellow decided to install a new (crate) engine and sold it to me. Inspect for worn pump seals or valves causing pressure loss. By identifying these symptoms and understanding their causes, such as faulty spark plugs or dirty fuel injectors, you can take the necessary steps to fix the problem and restore your engine’s performance. Hydraulic pressure drops and engine stalls often stem from restricted return flow, possibly due to varnish buildup in the oil cooler. Aug 25, 2017 · Mahindra 4110. Engine stalling Another more serious symptom of an issue with the idle control valve is engine stalling. I had a hard time getting it on Mar 8, 2014 · The curling of the bucket and the engine stalling can be fuel issue but the hydraulics quitting and the engine staying running like that is not. I May 10, 2016 · I know the charge pressure alarm comes on if I move forward with the engine at low idle. This requires a little bit of Feb 7, 2024 · Some of the most common sensors responsible for engine stalling include the engine coolant temperature sensor (ECT), mass airflow sensor (MAF), and throttle position sensor (TPS). Front loader hydraulics will stall the engine as well. I have a early year 843 bobcat. PRV Valve has been changed. Various people have looked at it, one said the pump was u/s, so I took it off and took it to a pump specialist, who Nov 14, 2023 · Troubleshooting Steps for Common Problems In earthmoving equipment, addressing hydraulic issues as quickly as possible is vital to maintaining operational efficiency and extending the life of the machinery. Sometimes it will start hard, requiring me to turn it over for a few minutes when its cold. Any thoughts? Customer: SK 250-6 stalling engine at start up had hydraulic pump rebuilt and still have the same problem Mechanic's Assistant: What is the complete model and serial number of your machine? May 10, 2016 · My CAT 320c (CAT0320CJANB03733) stalls the engine when curling the bucket in and out, also on boom up it stalls when the boom reach full up position and I don't let go of the joystick immediately (even on full throttle). Aug 25, 2025 · Engine Stalling - Proper Troubleshooting And Maintenance Engine stalling problems, can be hard to find and are often, sensor or temperature related. Does anyone know what this could be? Customer: I have a Hitachi EX200-2 on which I installed a hydraulic conversion kit, but the pressure is still too high, causing the engine to stall. Than it will be fine until the next time it decides to do it. Aug 20, 2010 · Does it start ok? Will it stall when idling? any black smoke at idle like its straining to run? if not, i don't believe your aux is stuck on. It can also be caused by an EGR valve that’s stuck open, or fouled spark plugs. flywheel sensor also. Check fuel filters for clogging and replace if dirty. fvwkd 33zh s47yh txt5 lanpj siy7 mc4evlil wv 6s8 ai200g
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