This is the first of a special set of videos we have created on hydraulic systems and troubleshooting. Through the handson hydraulic troubleshooting training program and hydraulic safety. Basic hydraulic troubleshooting training system amatrol. The following troubleshooting guides cover five categories of hydraulic problems. Troubleshooting tips for hydraulic systems womack machine. The ideal steadystate flow conditions through an offline filter make this a must for most applications. State the characteristics of oil flow through an orifice. Hydraulic systems troubleshoo ng systems level troubleshoo ng machine sequence troubleshoo ng machine performance troubleshoo ng amatrols basic hydraulic troubleshoo ng learning system. As you may already be aware, when it comes to hydraulic troubleshooting, i wrote the book on the subject. Absorb pressure spikes operate as an extreme safety device the only time the relief valve should open is when the pressure rises above the compensator setting. Amatrols basic hydraulic troubleshooting learning system 950htb1 teaches learners how to troubleshoot hydraulic systems and their components, such as hydraulic motors, directional control valves, and cylinders. Troubleshooting hydraulic systems and components workshop course syllabus upon completion of the troubleshooting hydraulics training workshop a person will be able to explain, describe, andor.
The definitive guide to hydraulic troubleshooting is not a book. Advanced fluid systems features hydraulic system tools and resources for troubleshooting. Its a training program which combines printed materials, computer simulation and screencapture videos. Try to isolate the hydraulic system from the rest of the system by blocking the pressure source. Our goal is to provide you with technical assistance quickly and effectively. Hydraulic system troubleshooting pellerin milnor corporation. Please note that many systems operate in environments or contain components that have other maintenance andor startup. Some hydraulic brake systems use a nonpetroleumbased hydraulic brake fluid such as sae j1703 or sae j17021. There is no magical way to troubleshoot a hydraulic system. Troubleshooting hydraulic systems and components workshop.
Hydraulic line from proportional valve to pump control port 4. Target hydraulic troubleshooting,troubleshooting hydraulic. In order for the obvious to be obvious, the fundamental laws of hydraulics must be kept in mind. Understanding the basic hydraulic systems and components can be of great value when troubleshooting and testing hydraulic equipment. Troubleshooting hydraulic systems can be a complex exercise. Troubleshooting hydraulic systems, and operating and maintaining your own hydraulic equipment starts with simply understanding how and why all the various components work. Chapter 7 hydraulic system troubleshooting general the following troubleshooting information is provided as a general guide to identify, locate and correct problems that may be experienced with the hydraulic system of this crane. Hints on maintenance of hydraulic fluid in the system. Most system failures can be pinpointed to one of these components. No grinding or welding operations should be done in the area where hydraulic components are being installed. Whatever your hydraulic applications, practical hydraulic systems. Systems with relief valves the purposes of a relief valve in a pressure compensating pump system are. Troubleshooting and preventive maintenance of hydraulic. For safety, efficiency, and oil quality, temperatures above 140f are not recommended for industrial hydraulic equipment using petroleumequipment using petroleumbased hydraulic oilbased hydraulic oil.
Includes hydraulic basics, hydraulic systems, pumps, hydraulic actuators, valves, circuit diagrams, electrical devices, troubleshooting and safety mechanics and hydraulics. Hydraulic system troubleshooting advanced fluid systems. Basic hydraulic troubleshooting learning system aidex. Integrating hydraulics with the capabilities and limitations of the truck. Use this troubleshooting guide if you have a system with the older style platform control panel and plunger switches on each jackleg. Session 1 will include components of a hydraulic system, and the fundamental. Whenever possible, use filters having element condition indicators.
All equipment problems and failures no matter how mystical always make complete sense after you find them. Identify pascals law as applied to hydraulic principles. Hydraulic system troubleshooting hydraulic power packs. And besides, there are no books devoted entirely to hydraulic troubleshooting in a meaningful way.
Provide fluid filters in locations that assure the required protection. It is important to ensure that the correct brake fluid is used in the vehicle brake system and incompatible fluids are not mixed. General hydraulic hints good assembly practices most important cleanliness. Hydraulic systems are used in so many automatic machines. It is imperative that the compensator be set below the system relief valve.
This hydraulic repair and troubleshooting seminar provides the basic building blocks and knowledge needed to be proficient working with industrial hydraulics and fluid power. Our hydraulic products have a wide range applications, they include scissor lift,tipping trailer, electric straddle stacker, hydraulic power unit and custom bespoke hydraulic systems. Vickers systems to the extent permitted by law accept no liability for loss or. Troubleshooting tips for hydraulic systems download data sheet this data sheet describes a stepbystep checkout procedure for hydraulic systems which have previously been. Relief valve protects the hydraulic pump and in turn the prime mover from overload quickly in case the system is exposed to overpressure. Troubleshooting hydraulic system problems troubleshooting. We will introduce many aspects of troubleshooting hydraulic systems and will share information that will help you to better understand and enhance the operation of your hydraulic equipment. Operation and troubleshooting guide for the airhydraulic system used on 200405 fleetwood and 200406 travel. Introduction to hydraulics for industry professionals hydraulic systems volume 1. With more than 200,000 hydraulic models numbers in inventory. Incorrect diagnosis prolongs downtime and can result in the unnecessary. Troubleshooting hydraulic systems and components workshop course syllabus upon completion of the troubleshooting hydraulics training workshop a person will be able to explain, describe, andor perform the following. Other hydraulic systems use petroleumbased brake fluids mineral oil.
Session 1 will include components of a hydraulic system, and the fundamental elements that. Remember also that truck mounted hydraulic systems differ from. Hydraulic trouble shooting hydraulic systems can be very simple, such as a hand pump pumping up a small hydraulic jack, or very complex, with several pumps, complex valving, accumulators, and many cylinders and other actuators. Vickers systems to the extent permitted by law accept no liability for loss or damage suffered as a result of the use of this guide. Our hydraulic products have a wide range applications, they include. Basic hydraulic systems and components subcourse number al 0926 edition a us army aviation logistics school fort eustis, virginia 236045439 4 credit hours edition date.
Pressure pump and related control components components on top of press dbet card in control box legend 1. Logical troubleshooting in hydraulic systems is intended as a guide to systematic fault findings in a hydraulic system. Troubleshooting is nothing more than knowing what normal operation is. All cylinder, valve, pump and hose connections should be sealed andor capped until just prior. Incorrect diagnosis prolongs downtime and can result in the unnecessary repair or replacement of serviceable components. The 4 most common causes of system overheating gpm hydraulic. When a hydraulic system does not operate properly, the trouble could be one of the following.
Hydraulic systems may be very complex, but every system, no matter how basic, must contain a reservoir, a pump, various valves to control oil flow, direction and. Try to isolate the hydraulic system from the rest of the system by. From the installation up to flushing of the system and the actual commissioning, an experienced team is available for you around the globe. And so now ive built the hydraulic troubleshooting app. Operation and troubleshooting guide for the air hydraulic system used on 200405 fleetwood and 200406 travel supreme coaches. Hydraulic system troubleshooting pellerin milnor corporation figure 35. Troubleshooting hydraulic systems dont take the wrong turn on october 28, 2015 in hydraulic systems by ben lee we recently helped out one of our clients with a hydraulic issue he was. Nov 18, 2014 this is the first of a special set of videos we have created on hydraulic systems and troubleshooting.
Avoiding these costly mistakes requires the correct equipment and a logical approach. Troubleshooting and preventive maintenance of hydraulic systems. Basic hydraulic systems pump valve free 30day trial. All openings in the reservoir should be sealed after cleaning. Pdf introduction to hydraulics for industry professionals.
Hydraulic trouble shooting hydraulic systems can be very simple, such as a hand pump pumping up a small hydraulic jack, or very complex, with several pumps, complex valving, accumulators, and many. Hydraulic system troubleshooting on august 28, 2014 in hydraulic systems by ben lee cavitation was first discovered in 1917 when lord rayleigh a british physicist decided to investigate. Chapter 7 hydraulic system troubleshooting general the following troubleshooting information is provided as a general guide to identify, locate and correct problems that may be experienced with the. The upper illustration would be a circuit used to raise a cutting unit with a hydraulic cylinder. Close a ball valve, disconnect a line and plug, etc. Oct 28, 2015 troubleshooting hydraulic systems dont take the wrong turn on october 28, 2015 in hydraulic systems by ben lee we recently helped out one of our clients with a hydraulic issue he was having. Stickslip effect due to the friction of the cylinder packings being too high. Integrating hydraulics with the capabilities and limitations of the truck engine, transmission, and power takeoff is paramount. By far the most common cause of overheating that we find is an improper adjustment.
Over heating of system what is the maximum temperature for a hydraulic system. In the minds of maintenance personnel, production managers, and plant managers, the word troubleshooting conjures up images of hours of downtime and lost production. Pressure pump and related control components components on top of press dbet card in control box. No grinding or welding operations should be done in the area. Principles, operation and maintenance training seminar provides participants with a greater working expertise and understanding of hydraulic power systems. With more than 200,000 hydraulic models numbers in inventory, parkers breadth of product is unmatched whether designing new applications or retrofitting older ones, parker is. Download it once and read it on your kindle device, pc, phones or tablets. Isolating portions of the circuit is a good way to identify the area of concern. We will introduce many aspects of troubleshooting hydraulic systems and will share information that will help you to better understand and enhance the operation. The lower illustration would be a circuit that uses a hydraulic motor to drive a cutting unit reel. Target hydraulics is a manufacturer of hydraulic cartridge valves, hydraulic valve manifold blocks and mini hydraulic power pack units. September 1994 subcourse overview this subcourse is designed to provide instruction on the concept and operation of the basic components of the hydraulic system.
The recirculation pump is part of the oil cooling and filtering system. Yet, most of the problems encountered in all of these systems are often traced down to a few basic issues. Typical metaltometal clearances in cat hydraulic systems are 35 microns one micron is one millionth of a meter. Hydraulic brakes and airoverhydraulic brake systems. It is expected that all troubleshooting and testing will be performed by a qualified hydraulic technician. Lacking flow the flow is taking the path of least resistance.
Troubleshooting tips for hydraulic systems download data sheet this data sheet describes a stepbystep checkout procedure for hydraulic systems which have previously been working satisfactorily but which have developed trouble, usually over a 24hour working period, which renders them inoperative. All equipment problems and failures no matter how mystical always make. Mar 10, 2004 12 steps to troubleshooting pneumatic systems troubleshooting a pneumatic system has been considered an art, a science, or just hitormiss luck. If in doubt, always refer to the original equipment manufacturer. If you dont know normal, you cant identify abnormal.
It is equipped with a pressure relief valve to maintain the operation pressure of the system at a predetermined level. Troubleshooting hydraulic systems and components workshop for. On machines that usually do not overheat but are overheating now, this is the first thing we look for. Includes hydraulic basics, hydraulic systems, pumps, hydraulic actuators, valves, circuit diagrams, electrical devices, troubleshooting and safety mechanics and hydraulics kindle edition by tsd training, training, tsd. As you may already be aware, when it comes to hydraulic troubleshooting, i.
Possible causes and remedies are listed for each type of trouble. It involves a lot of science and sometimes, a bit of art. Force is figured in pounds, pressure is figured in psi pounds per square inch and area is the square inches of the movable rod or piston in the cylinder. Hydraulics trouble shooting guide advanced fluid systems. Industrial hydraulics at the heart of every industrial hydraulic solution is parkers 85year reputation for innovation and quality manufacturing. World wide service for hydraulic systems and components. Amatrols basic hydraulic troubleshooting learning system 950htb1 teaches learners how to troubleshoot hydraulic systems and their components, such as hydraulic motors, directional control.
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