Pump reassembly continued lubricate lips of shaft seal and carefully install the shaft assembly into the pump body. E n g i n e e r i n g gear pump basics the external gear pump is a positive displacement pd type of pump generally used for the transfer and metering of liquids. Diagnose and rectify the basic problems plaguing centrifugal pumps. Vortex problems in sump adding of baffels or flow direction devices can reduce this. Ive got a approximately 2 year old hayward power flo matrix 1 hp pump. Mar 05, 2019 turn off the engine and wait for at least 5 minutes. Sauerdanfoss high performance gear pumps are fixed displacement pumps which. Pvp series variable volume piston pump service bulletin. Storage if the pump is to be stored or not used for any appreciable length of time it should be drained and a light coat of lubricating and preservative oil should be applied to the internal parts suggested repair tools. For standard multiple pumps, see multiple pump technical manual.
General gear pumps and gear motors technical information. Check and clean the hoses and make sure the tank has no sludge in the bottom. To get the best from the pump, carefully read and understand this manual before. Dont assume you need to replace your gear pump until youve tried this one simple test. Compare your pressure reading to specification for hold pressure in your repair manual. A water pump manual is kind of like a fine bourbon, it gets better with age. Failure to do so could result in personal injury or damage to the pump. If pressure drops below specification before the five minutes, you may have a leak somewhere.
Below, youll find an easy reference chart updating the old pumphead numbers. View and download onga jmm100 owners manual online. The following tools must be available to properly repair series 75 and 475 pumps. The cm series of centrifugal pumps is available as singleor multistage units. Js100, jsm100, jsk110, js110, jsp110, jsk120, js120, jsp120. Try this simple tip before you blame your gear pump for.
Inspections for possible problems with gear pumps download. Designed to be costeffective, stable and lowmaintenance, pvwj is a variabledisplacement axialpiston pump with a medium control response. The amount of reduction will depend on the geometry of that section of the particular pump and will vary from pump to pump. Misalignment longcoupled pump align pump and motor. Extended dry running install power sensor to stop pump. At hydro gear parts youll find the best replacement for your mower or any outdoor equipment. You can have all the simplicities and advantages of a gear pump with the efficiency features of a piston pump. One of the major problems facing industry is the limited number of people with sufficient skill and experience to diagnose and rectify the basic problems plaguing centrifugal pumps. In a positivedisplacement pd pump, a discrete amount of fluid is trapped, forced through the pump, and discharged. The damage occurs to both the housing and gear surfaces.
This will minimize air bubbles caused by agitation being drawing into the pump. This is because the hydraulic gear pump is one of the main components used in manufacturing, con. Alfa laval solutions to specific centrifugal pump problems 31 how alfa laval can provide solutions to specific pump problems. Our manual library might not be as old as raiders of the lost ark, but it expands every day. The catalogue highlights the range of aluminum and cast iron gear pumps and motors available from sauerdanfoss. Mar 02, 2016 maintenance and troubleshooting of centrifugal pumps 1.
Centrifugal pump troubleshooting guide this material was reproduced from practical machinery management for process plants. The high volumetric efficiency of barmags precision gear pumps ensures a reduction of pressure fluctuations to as little as 110 of the original pressure fluctuations upstream of the gear. This document has been produced to support pump users at all levels, providing an invaluable reference tool. Troubleshooting guide working pressostat and high pressure pipe the operating pressure switch does not close switch off the main switch for the heat pump, wait until the compressor has been stationary for at least 1015 minutes. Due to the variety of options and configurations available, it is not possible to provide detailed information in this manual. Faculty output circuit components cylinder, motors, valves, etc.
Overview of pump problems typically found on centrifugal pumps. P315p330p350p365 gear pumps and motors php manufactures bushing gear pumps and motors to the highest quality and durability for the most demanding applications. P series hydrostatic pumps service and repair manual bln52503 august, 2010 pc pj pw pr pgpe pk. Reduce the compensator to its minimum setting during startup. Since the completed acquisition in 1994, honor has gained a reputation for design expertise and product quality through innovative engineering and leading edge production techniques. Diesel engines and their components current repair may be done by mechanics familiar with their design, principle of operation, having general technical background according to 34 grades training programme. The pump is probably the component most subject to wear in a hydraulic system, and the one most likely to cause a sudden or gradual failure in the system. Because of this, the following points should be considered. The progressing cavity pump and its geometry a progressing cavity pc pump, or a single screw pump, is a positive displacement pump and therefore a fixed volume is displaced with each revolution of the pump s rotor. With pump under no load, or with pump control at neutral turn drive unit on and off several times before allowing pump to attain full speed.
Hydraulic gear pump and motor failure analysis and repair. Typical problems and their effect on rotary lobe pumps 19 detailed look at the most common problems advising causes and solutions. Base not rigid enough tighten holddown bolts on pump and motor or adjust stilts. The article has been written keeping in mind the level and interests of students and the beginners in operation. Wear clearance between gear teeth and gear chamber. A flow of oil is produced by the pump due to this rotation. Backup pump troubleshooting guide unit is not receiving power only check to make sure the power adapter is plugged into an outlet and firmly into the back of the controller check the outlet check the gfi if there test the power adapter with a voltmeter set on dc voltage note the marking on the meter for ac volts differs on all meters.
Reduce pump speed or use larger pump running at lower speed. Improper impeller balance remove impellers and balance per peerless pump recommendations 10. Gt series hydraulic pump service instructions pump disassembly procedure 1. Hydraulic troubleshooting is one of our specialties here at bernell hydraulics. On series 9000c units, install the pump using the hypro pto mounting clip, which is designed to accommodate most tractor pto shields. Yesterday i noticed that the pump had tripped breaker its practically alone on the breaker, ocassionaly some lights. When properly installed, the mounting clip prevents the pump from rotating, reduces the weight on the pump shaft reducing excessive wear on the bearings, and in most cases, replaces the torque chain.
Troubleshooting symptoms that may mean a bad fuel pump. Close inspection of gear pumps removed form service will show if those. Maintenance and troubleshooting of progressing cavity pumps. May 11, 2015 the goal of this paper is to show the attributes of positioning a gear pump in tandem with a singlescrew extruder, and provide troubleshooting methods for tandem operation. If it becomes much higher then you should examine the system to see if the pipes are too small. Remove screws, cover from body, remove gears with shafts from body. This nomenclature differentiates it from an internalgear pump, which has one gear. Adjust relief valve to manufacturers specification. The pump is so named because it has two gears that are sidebyside or externalto each other.
So replaced a hydro pump and wheel motor or a lazer z and cannot get it to bleed out and purge the air. When you reset the breaker the pump will run and move water, but it sounds like its running bogged down and within 30 seconds will trip the breaker again. The system can usually be filled by running the pump and operating the control. Positive displacement pump problems 5 overview of pump problems typically found on positive displacement pumps. Griswold pump company pump operation page 20 installation, operation and maintenance manual griswold model 811 troubleshooting if problems are encountered during startup or pump operation, refer to the folowing table for.
The albany gear pump is an external gear positive displacement pump which. Grease cradle bearings and assemble into pump housing. As a result, downtime and maintenance costs are greatly reduced. Check the seal of inline filter because this can degrade and lose its seal over time. We are facing cavitation problems in the lubricating oil gear pumps. Detailed specifications are included for all products. Rapid pump wear abrasives in fluid install suction strainer. Like all oilgear pumps, it thrives on lowviscosity fluids and comes in a variety of frame sizes and available displacement rates. I have replaced about 6 of these in my lifetime and just letting it run wide open on jack stands always seemed to work well. Each component in the system must be compatible with and form an integral part of the system. A fixed displacement gerotor charge pump is provided in the bdpiol units. Have a licensed water well contractor or plumber check the pump and water system. A gear pump uses two meshing, toothed cogs to force water from the inlet of the pump through to the outlet.
Hydraulic gear pump and motor failure analysis and repair guide page 2 of 32 alamo industrial 1502 e walnut st, seguin, tx 78155. Fluid not required to replenish the closed loop flows either into the pump housing through a cooling orifice, or back to the charge pump inlet through the charge pressure relief valve. The pressure relief valve mounted on viking pumps and. Hydraulic gear pump and motor failure analysis and repair guide. Geitner by permission of the publisherbutterworth heinemann of 225 wildwood avenue, woburn ma. This will assist in breakin of new components and help purge air from the case. Take, for example, a system that runs a 16 cm3 gear pump at 1450 rpm, and, say, the system pressure cant go higher than 100 bar because the pump is severely wornout.
Php manufactures bushing gear pumps and motors to the highest quality and durability for the most demanding applications. Pump inlets should be the first place to check when your pump loses pressure. The brawn is the hardworking long life characteristics of the gear pump. Machinery failure analysis and troubleshooting by heinz p. Hydraulics trouble shooting guide advanced fluid systems. They can either be plumbed just to the pump to test the pump or they can be plumbed inline between the pump and wheel motor to test both at the same time. Troubleshooting tips for hydraulic pumps womack machine.
Insidepenton com electronic design adobe pdf logo tiny. However, finding a manual for specific model can lead you on an indiana jones treasure hunt. Troubleshooting guide continued troubleshooting guide part 2 problem possible cause corrective action rapid pump wear abrasives in fluid install suction strainer. General gear pumps and gear motors technical information general information sauerdanfoss offers a wide range of gear products to meet most application needs. Its output flow tends to vary little with respect to the pressure at the pump outlet, because the moving.
Oil from an external reservoir and filter is pumped into the closed loop by a charge pump. Take, for example, a system that runs a 16 cm3 gear pump at 1450 rpm, and, say, the system pressure cant go higher than 100 bar because the pump is severely worn. Hydraulic systems for these machines typically use gear pumps for powering hydraulic systems. Replaced hydro pumpmotor and cannot get it to bleed. Whether we have your unit in stock or not, repair is always an option. Group 2 gear pumps technici al information 77c 33m 55k 50c 100y 66m 88y 66m 88y 5 turolla l1016341 september 20 rev c pump design turolla high performance gear pumps are fixed displacement pumps which consist of the pump housing, drive gear, driven gear, du bushings, rear cover and front flange, shaft seal and. The grabcad library offers millions of free cad designs, cad files, and 3d models. However, there are many reasons that a pump can lose pressure check out our troubleshooting tips and tricks below. Cycle the pump on and off stroke while increasing the compensator to its required setting. This pumping principle produces a pulsating flow, rather than a smooth flow. Rpm fluctuations can, in turn, affect pressure by altering restriction of flow in the pump outlet line. Centrifugal pumps can be classified based on the manner in which fluid flows through the pump. Join the grabcad community today to gain access and download. However all pump systems are different, in some systems the friction energy may represent 100% of the pumps energy.
Hydraulic pump troubleshooting guide no oil flow from pump. Bdp10l pl hydrostatic pump service and repair manual. This paper will describe a few operations where gear pumps improved a process, how they are used in unstable processes, and approaches to troubleshooting lines using gear pumps. P series hydrostatic pumps service and repair manual bln0093 june, 2018 pc pjpk pwpy pr pgpe. Corrosion wear use materials of construction that are acceptable for fluid being pumped. Worn pump bearings pull pump and inspect for bent shaft, straighten bent shaft, replace wear ring, remove any abrasive material, adjust impeller setting per peerless recommendations 8. Using the buzzer, check if the operating pressure switch is closed or not. For typical systems, it is around 25% of the total. Checklist of problems vvith centrifugal pumps and their causes centrifugal pumps are one of the worlds most commonly used devices. Using a gear pump repair kit carbon bearings before considering the repair of a worn gear pump, it is necessary to determine whether the pump can be restored to a reasonably good performance 60 80% of new pump performance. See product dimensional information page 35 for outline drawings of pumps and. The manner in which fluid flows through the pump is determined by the design of the pump casing and the impeller. You will also spot hydro gear pumps, filters, seal kits, and transmissions with parts lookup. The three types of flow through a centrifugal pump are radial flow, axial flow, and mixed flow.
Maintenance of centrifugal pumps proper maintenance of a cf pump is important to ensure its troublefree and long service the maintenance operations of cf pump includes. Clogged impeller or foreign material in pump disassemble pump, inspect and remove foreign material, reassemble and set impeller with correct lateral settings 9. What are the possible reasons for gear pump cavitation. With so many things to check for sometimes its hard to know where to start. The pump supply line from the tank should be plumbed from the opposite side of the tank than the bypass return.
Letting us repair your unit can also be drastically cheaper than replacing it, especially if parts are hard to come by. When leakage flow is big enough to become a pressure limiting factor, all of the input power is transformed into heat, and the pump essentially becomes an industrial oilheater. Try to set preconceived ideas of what could be wrong aside and base your statement on facts that are accurate and unbiased. The correct way to test the hydro system would be use a bidirectional flow meter. Pump andor water system low pump production in spite of normal water level in well. Diener precision pumps is recognized worldwide as the leader in lowflow fluid. We love having folks bring in worn or damaged parts and ask us to help them figure out the possible causes of the problem. This results in only 8,000 hours of service life, which is too low. Criterial quantities providing the wear symptoms identification of tested pumps, were separated during the pump characteristics empirically obtained analysis.
Whether youre looking for hydro gear transaxles, such as hydro gear zt3100, zt2800 among others. Do not use teflon tape on pipe thread fittings pump is hot. Try this simple tip before you blame your gear pump for system failure dont assume you need to replace your gear pump until youve tried this one simple test. In fact, it may be your best option for obsolete and hard to find hydraulic pumps and motors. When a pump wearsout, its sealing clearances become larger, which causes reduction of useful flow and an increase of the internal leakage. This manual is designed to help you achieve the best performance and longest life from your gorman. Feb 24, 2014 the correct way to test the hydro system would be use a bidirectional flow meter. The gear pump failure states, that occurred most often, were identified in chapter 3. The liquid then moves into the eye of the rotating impeller where an even more significant drop in pressure occurs.
Basically, the flow meter will show the loss of oil flow at different pressures. When printing a pdf file, depending on your printer and pc capabilities, it may. Gear pump manual original instructions albany pumps. Pumptec troubleshooting guide problem cause solution no water flow tank is empty. Our gears are produced to precise tolerances with a true involute profile along the tooth thus maximising volumetric efficiency. Condition likely cause correction muncie power products. Follow all instructions for proper operation of gear pump head to maintain the best accuracy of flow rates, recalibrate pump head regularly. Flood suction hose, restart pump and run pump until all air has been evacuated. Gear pump division kings mountain, north carolina usa 5 catalog hy090500us. Hydro gear parts or new units call 6066789623 or 6065614983. With a grease pencil, ink marker or metal stamp, mark each housing or cover on the parting line in a way that will enable you to reassemble the parts in the same position when you put the unit back together. We hope the guides we have supplied here will be helpful to you in diagnosing pump problems and maintaining healthy pump systems.
Excessive noise and vibration suction andor discharge piping not anchored or properly supported anchor per hydraulic institute standards. For example, an inadequate size filter on the inlet of a pump can cause cavitation and subsequent damage to the pump. Hydraulic pump motor division hydraulic flow is developed as the pump rotating group is driven by a prime mover hydraulic pump basics fluid is forced out of pump at the pump outlet a partial vacuum is created at the pump inlet and atmospheric pressure forces fluid into pump from the reservoir. Water pump manuals how to access old water pump manuals. When troubleshooting an internal gear pump or any other pump for that matter, develop a clear, concise, and objective statement of the problem. Troubleshooting gear pump assisted singlescrew extrusion.
Hydraulicspneumatics com sites hydraulicspneumatics com files uploads 2015. The brain is the dual stage modulating element which provides a 15 psi standby bypass pressure for oil being unloaded back to the tank. P series hydrostatic pumps service and repair manual. Parts book p20p5051p7576p315 gear pumps and motors distributor program.
371 1255 1515 357 679 556 785 865 584 1432 231 1176 886 1200 1130 155 1052 188 240 296 68 1409 1314 1245 914 922 1065 304 291 852 1266 864 866 1093 949 667 182