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  • FTT 111-9352 Flashcards - Quizlet

    Feb 26, 2020 · This happens occasionally when changes are made to your facility's plant design, and technicians forget to recalibrate pressure relief valves for the system's new normal operating pressure. Your valve technicians can go in and adjust the valve's set pressure to address this issue.

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  • Top Causes of Hydraulic Cylinder Failure - Cylinder Failure

    Feb 25, 2016 · 1. Sideloading. Sideloading is the most common cause of wear and cylinder failure. A common result of sideloading is cylinder misalignment, which creates an unusual force on the piston rod. A side load of enough magnitude can result in tube scoring, piston …

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  • Keep Your Rubber Tracks in Top Shape with These Handy Tips

    Sep 02, 2014 · Additionally, avoid driving across slopes and making fast, sharp turns, which may speed up the wear process. Avoid Direct Sunlight. When the machine is parked for long periods of time, make sure it's in the shade or cover the tracks with a tarp or cloth. Sunlight is a natural enemy of any rubber product, including rubber tracks.

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  • 315C bogging down under load | Heavy Equipment Forums

    Dec 27, 2020 · It fights with the modulating left pump and loads the motor. When you get to dead head both pumps go to max output and really load the motor. Boom acts the same way as it uses both pumps. Bucket uses right pump and during fine operation the pump acts the same, goes right to max output. Swing is on left pump and works good.

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  • 5 Common Signs that Your Fuel Pump is Failing

    Jun 20, 2016 · Symptoms of a Failing Fuel Pump. Although mechanical and electronic pumps fail for different reasons, the symptoms of failure are similar for both types of pumps. If you notice any of the common symptoms of fuel pump failure while you're driving, you may need to have your fuel pump inspected and replaced. 1.

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  • Bleeding Air from Diesel Fuel Lines and Filters

    7. Most all equipment has a hand priming pump lever to pump fuel through the system and replace trapped air. (Check operator's manual.) Pump several times until full flow, without air bubbles, escapes from the bleed plug holes. 8. You may need to bleed filters, fuel pump and lines to the injectors. 9.

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  • Komatsu vs Caterpillar Excavators - Broken Tractor LLC

    Jun 24, 2020 · If you're looking for a new excavator, you've probably come across two highly-rated brands: Komatsu and Caterpillar. These two options are often the top choices for decision-makers in need of an excavator. If you happen to be in this situation, we can help. Read on to learn about the differences between Komatsu and Caterpillar excavators.Caterpillar is one of the foremost names in …

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  • 7 Reasons Centrifugal Pump Shafts Break - Crane Engineering

    What happens when reverse flow causes a pump's impeller and shaft to turn backwards and the pump suddenly kicks on? You have a stressed or broken shaft. This scenario occurs when check valves upstream are partially or completely plugged, or otherwise not functioning properly. Is there a pump in your facility that frequently breaks shafts?

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  • Most Common Diesel Engine Overheating Causes and Symptoms

    May 31, 2019 · 4. Broken Thermostat . The thermostat in your car is essential for prevention of engine overheating. As it is a heat-sensitive component, it has a valve that opens and closes to regulate the engine temperature. If the thermostat is faulty it can't determine when the engine is overheating, meaning it's unable to initiate any cooling

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  • Symptoms and Causes of Hydraulic Pump Failure

    Jan 31, 2019 · Symptoms & Causes of Mechanical Pump Failures. Bearings Run hot and/or fail on regular basis. High rate of mechanical seal failure. Packing has short life. Pump vibrates at higher than normal levels. Pump is drawing too much power. Wear of internal wetted …

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  • Common Control Valve Problems | Basic Principles of

    This phenomenon, when it happens inside a control valve, is called flashing. As the graph shows, the point of lowest pressure inside the valve (called the vena contracta pressure, or (P_{vc})) is the location where flashing will first occur, if it occurs at all.

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  • Hydraulic EXCAVATOR how it works? excavator working principle

    May 27, 2019 · A hydraulic excavator is a machine that has mechanical, electronic, and hydraulic components used together to achieve excellent performance in the areas of mining and construction. In general, the engine of a hydraulic excavator is a 4-stroke diesel engine. Its mechanical arm has the facility to incorporate different tools to perform work on

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  • The Most Trusted Mini Excavator Hydraulic Cylinder

    Excavator hydraulic cylinder seals (also called check valves) are an integral component of the hydraulics system that controls the pump's flow out of the pump. Mini excavators have two primary hydraulic circuits: The operating system is used to control the movement of the machine and operates the boom, arm, swing, quick coupler, bucket

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  • What causes the high temperature of small excavators_China

    3 Common Symptoms Of Hydraulic Gear Pump Problems

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  • Actuator repairs, troubles, failures? A checklist.Allied

    May 31, 2016 · Some common valve issues that can cause actuator problems: A worn out valve stem. Seized up packing. An obstruction. Too much torque. It doesn't do any good to repair an actuator when the valve is what's causing the trouble. On the contrary, it wastes both time and money — and leaves you back where you started.

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  • 5 Common Signs that Your Fuel Pump is Failing

    Dec 13, 2020 · It may be a small bubble. If this happens, there is a problem with the engine's cylinder head. 3. Check that the pump starts the machine, and then squeeze the outlet pipe by hand. If it feels strong when squeezed, the pump is not a problem. If it is easy to …

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  • head | John Deere Excavator

    The item "1032517 Hydraulic Pump Head Block for John Deere Excavator 160DLC 160GLC 180GLC" is in sale since Thursday, December 17, 2020. This item is in the category "eBay MotorsParts & AccessoriesCar & Truck PartsOther Parts". The seller is "zdparts-mall" and is located in guangdong. This item can be shipped worldwide.

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  • Problems That May Occur with the Boiler Circulator Pump

    head that the pump will have to produce to at least get the water up to the high point. Figure 7 Suction, discharge and total static head. The total static head is what we determined in the first part. It's the difference between the levels of the free surfaces of both …

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  • Help Blown Headgasket?? Cat 287b | Heavy Equipment …

    May 25, 2015 · Incorrect pump settings that caused an increase in the pump's pressure, water levels, speed, or temperature. Incorrectly installed parts. When a part is installed incorrectly it can cause cracks within the pump casings. If your pump casing has cracked, don't worry; the experts at Irrigation Outlet have gathered together a few tips that will help you fix the crack, strengthen your pump, and get it up …

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  • How do I fix a cracked pump casing? - Irrigation Outlet

    Symptoms and Causes of Hydraulic Pump Failure

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