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  • Kubota 121-3 Excavator Weak Hydraulics - TractorByNet

    WebMay 6, 2016 · All other hydraulic functions seem to be ok, the machine digs fine. It is mainly a farm machine but I do some for hire work on the side. I have put maybe 70 or 80 hours on it in the last 6 months so I have just been using the boom and bucket to help turn and working with it until I can figure this out.

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  • Detecting and Managing Hydraulic System Leakage

    WebBecause hydraulic systems are all about fluids, the most common and pressing issue with them is a hydraulic leak. A hydraulic fluid leak reduces the amount of fluid that can multiply force and reduces the efficiency of the system. A significant loss of fluid can also wear out the hydraulic pump.

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  • CAT 320N weak tracks, won't turn | Heavy Equipment Forums

    WebAug 14, 2018 · When CAT excavator track drive motors, like those on a Caterpillar 303 CR, come into the shop for repairs or re-manufacturing, the problem can often be traced to a leak between the sprocket and the back side of the hydraulic motor. That particular leak is caused by a failed floating face seal, also called a duo-cone seal or a mechanical face

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  • The Seven Most Common Hydraulic Equipment …

    WebDec 21, 2014 · Make shire the throttle is operating first. If it doesn't go to full throttle under load, the problem could be in actuator or controls. If it is going to full throttle, you need to check for fuel inlet restrictions. There is a fuel transfer pump the draws fuel from tank and supplies the injection pump.

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  • Excavator stalling under load | Heavy Equipment Forums

    WebHi my EX200-2 excavator's has no hydraulic power and a load on the motor and won't rev then did for 10 minutes and ran perfectly but died again blowing black smoke as well I've replaced the 2 censor o Komatsu 220LC-5L excavator loses power as it moves, heard a strange noise first. Is it the hydraulic or what could be causing the problem?

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  • Detecting and Managing Hydraulic System Leakage

    WebFeb 12, 2020 · Excavator is a bit slow to operate. It can not raise bucket above average truck height in time it makes 180 degree turn. It always takes few seconds of cranking before it starts up, warm or cold. When on idle, if command is given, it stalls, no matter warm or cold, which I've never seen happen before on any excavators.

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  • Excavator Hydraulic System - Xugong Parts

    WebJun 29, 2014 · Energy contamination, a.k.a. heat is THE biggest enemy of a hydraulic system. Bigger than particle and water contamination these days, due mainly to the widespread understanding and adoption of modern filtration technologies. And here are 3 reasons why a hot-running hydraulic machine is an unreliable hydraulic machine.

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  • Excavator Main Hydraulic Pump Receiving Pressure & Flow Rate …

    WebThe fluid not only transmits the power that moves your drives and actuators. It also lubricates internal components and removes heat from the system. Hydraulic fluid is designed to operate at a specific temperature range. As it heats, it becomes thinner and eventually it will lose the ability to lubricate moving parts.

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  • Excavator Hydraulic System - Xugong Parts

    WebA hydraulic fluid leak reduces the amount of fluid that can multiply force and reduces the efficiency of the system. A significant loss of fluid can also wear out the hydraulic pump. It is important to fix hydraulic leaks as soon as they are diagnosed. Most hydraulic fluid leaks are small and take time to affect the functioning of the equipment.

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  • Weak Hydraulics when hot | Heavy Equipment Forums

    WebCause of Engine drop all function and low power on CAT 320DL Excavator Al Ayuni Workshop Hydraulic technical Information 13.2K subscribers 83K views 1 year ago #Excavator #NEOM #CAT

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  • Most Common Causes of Hydraulic Systems Failure

    WebAug 9, 2009 · Cat excavators have a device called a powershift (not to be confused with the type of transmission) on the hydraulic pump. This acts to reduce swahplate angle and thus hydraulic pump displacement when the engine lugs down, to prebent engine stall.

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  • Most Common Causes of Hydraulic Systems Failure

    WebAug 1, 2019 · Tractor. Bobcat CT225. The 341 has a variable displacement load sense pump. When working correctly the pump senses flow at pressure and adjusts flow rate to match engine horsepower to prevent bogging as described. Testing/adjusting the pump is very detailed process that requires special hydraulic fittings, gauges, and adjustable load …

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  • Hydraulic System Troubleshooting Tips | Cross Mfg.

    WebGradual or sudden loss of pressure or flow resulting in a loss of power is common in hydraulic system failure. Any one of the system's components may be at fault. These step-by-step procedures should help you locate and remedy the problem quickly. SYSTEM INOPERATIVE No oil in system, insufficient oil in system. Fill system. Check for leaks.

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  • 3 BIG Problems Caused By Hot-Running Hydraulics | Power

    WebMay 13, 2011 · Bobcat Co., W. Fargo, N.D., recently redesigned its 770 series of compact loaders to provide higher power and better hydraulic performance than ever before. The 770 series consists of the S770 skid-steer loader; the T770 tracked loader that offers more pushing power, higher tipping loads, and lower ground pressure than a skidsteer; and the …

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  • Bobcat 341 Excavator has no power under load - TractorByNet

    WebOct 15, 2021 · The first reason why your excavator loses hydraulic power is that the hydraulic oil is too viscous. Your oil could be too viscous because it is too cold, or simply because you used the wrong type of oil. Consider letting your hydraulic oil warm up first before proceeding to use your excavator. Also, consider replacing the oil with the correct …

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  • Excavator stalling under load | Heavy Equipment Forums

    WebApr 16, 2020 · Here is our collection of hydraulic system maintenance tips: 1. Oil Maintenance. Check your hydraulic oil on a consistent schedule — it needs to remain clean and free of any contaminants. You should empty and replace the hydraulic oil after every 1,000 hours of work or per the manufacturer's instructions.

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  • Power Loss CAT 320 | Heavy Equipment Forums

    WebMar 24, 2009 · When any hyd oil goes beyond a certain high temerature, it can "shear" in the hydraulic pump, which will destroy the pump over time. Work your machine until it begins to get weak, then place your hand on the hyd tank. If …

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  • Understanding Common Hydraulic System Problems …

    WebAug 3, 2017 · Still don't have good hydraulic pressure. Was on the phone with the kubota mechanic and he said about pressure testing the hydraulic pump, so I got a gauge and plumbed it in where he said. With the machine running and no control input at an idle, the needle bounces around low at like 500 or less psi.

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  • Common Problem on CAT Excavator Hydraulic Motor …

    WebHi my EX200-2 excavator's has no hydraulic power and a load on the motor and won't rev then did for 10 minutes and ran perfectly but died again blowing black smoke as well I've replaced the 2 censor o Komatsu 220LC-5L excavator loses power as it moves, heard a strange noise first. Is it the hydraulic or what could be causing the problem?

    Learn More