Gear pumps use toothed gears turning inside a close tolerance housing to drawin liquid and then. If high viscosity fluid is supplied, install a gate valve or other lowresistance valve on the suction side. Pump maintenance repair brian trombly mo droppers cummins bridgeway, gaylord, mi the basic centrifugal pump consists of two main elements. The pump casing guides the liquid from the suction connection to the center, or eye, of the impeller. Gear pumps make good chemical additive dosing pumps provided material compatibility issues are addressed. Bronze rotary gear pumps installation, operation, and maintenance instruction introduction congratulations for choosing an oberdorfer pump, the industry standard for quality since 1890. This article discusses factors that contribute to good centrifugal pump performance. Bronze rotary gear pumps installation, operation, and. The stationary element which includes a casing, stuffing box or seal cavity and bearings. Gear pump division kings mountain, north carolina usa 2. Application flexibility valve capabilities and common inlet multiple pump. The liquid is carried between the teeth and the case to the opposite side of the pump. Installation, operation, maintenance user instructions user instructions 71569246 2167be1 external gearex user instructions english.
Check level, color, quality and cleanliness of fluid and act accordingly. 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. Maintenance and repair of gear pump test rig irjet. Rotary gear pumps are positive displacement pumps and must be provided with some sort of pressure protection. This guide includes information on model codes, performance data, installation and maintenance and more. Creating predictive and preventive maintenance plans for pumps. As with any pump, proper operation and regular maintenance are vital to reducing costly pump repairs and maximizing pump efficiency. Also in rotary pump standards in secure pdf description more details scope of standard. When lifting, install check valve on suction line to keep flooded suction. These two gears are important and only moving parts in this pump. When using a gear pump a pressure relief valve must be fitted to protect the pump if deadheaded against a closed valve or blockage. High efficiency pressure balanced bearing blocks assure maximum efficiency under all operating conditions. The advantages regular monitoring of the pumps are no dismantling of the pump is necessary. As discussed in our ebook, 36 ways to kill your pump, reactive maintenance accounts for unplanned equipment downtime and increased costs.
Gear pumps are the most popular type of positive displacement pump. This book shows how condition monitoring can be applied to detect internal degradation in pumps so that appropriate maintenance can be decided upon based on actual condition rather than an arbitrary time scales. Hyva pumps are manufactured and available in several options. If the pump needs to be opened to do this, ensure that the pump and motor are switched off and cannot be turned on accidently eg.
Gear pump training industrial pump maintenance and. Gear pump maintenance, stainless gear pumps, hydraulic. In the first category hydraulic, a pump may fail to deliver liquid, it may deliver an insufficient capacity or develop insufficient pressure, or it may lose its prime after starting. 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. For maintenance and inspection of the shaft seal part, be sure to check the lubrication oil list shown in the delivery diagram. You can say that both of them are must and essential part of this pump. Hydraulic gear and piston pumps hyva we move your world.
The symbol used in the table below indicates that the action indicated may not be applicable to a specific pump of a particular type. Maintenance series 4195 pumps are designed for long, troublefree service life under a wide variety of application conditions with a minimum of maintenance. Gearbox maintenance tips introduction gearboxes are essential devices found everywhere in industrial manufacturing facilities, providing even distribution of power and torque wherever needed to fuel manufacturing productivity and profits. Congratulations for choosing an oberdorfer pump, the industry standard for quality since 1890. Working mechanism of a centrifugal pump a centrifugal pump is one of the simplest pieces of equipment in any process plant. Offers cost savings and energy savings by increasing the pump availability and reliability coefficients for pumps the time to maintain the pump set maybe predicted and planned more accurately and in a qualified manner in line with predictive and planned maintenance strategies. Troubleshooting and preventive maintenance of hydraulic. Maintenance and service manual selfpriming internal gear. Take temperature readings at the pump, pump case, and various valves to. Preventive maintenance checklist for centrifugal pumps.
Ghs series om04383 introduction page i1 introduction thank youfor purchasinga gormanrupprotary gear pump. Preventive maintenance checklist for centrifugal pumps to guarantee an efficiently performing centrifugal pump that provides service with minimal repairs and shutdowns, institute a sound preventive maintenance program. Periodically top alignment of the pump and motor should be checked. By david holland and ronald burg, mahans thermal products. A gear pump uses two meshing, toothed cogs to force water from the inlet of the pump through to the outlet. The driver gets the drive from external means like through main engine or electric motor. Predictive maintenance of pumps using condition monitoring. Plug the return line and cap the return port of the gear with high pressure fittings 3. Properly selected, a gear pump will be more reliable and less maintenance intensive handle solvents, hot liquids and many.
The gear pump is a precision machine with extremely tight fits and tolerances, and is capable of working against high differential pressures. Installation, operation, and maintenance instructionbronze. Remove the dirt and water seal from the steering gear. Below are helpful tips for operating your gear pump and ensuring it achieves a long operating life through regular maintenance. In this video, we will describe screw pump maintenance and overhauling disassembly,inspection,measurement and assembly mechanical seal removal after we finish the video the viewers able to know. Preventative maintenance most of the maintenance needed for a moyno pump is based on lookfeel yearly maint. Actions required only for specific pump types are so noted. Troubleshooting and preventive maintenance of hydraulic systems learning to read the signs of future system. Predictive maintenance of pumps using condition monitoring by raymond s. Disconnect return line figure 1 from the steering gear. Gear pump operation operate close to the maximum rated speeds. Gear pumps are often used in pumping relatively viscous liquids, such as some viscous liquid hydrocarbons, liquid fuels, lubrication oil pumping in machinery packages, hydraulic units and fluid power transfer units. The owner of the motor is responsible for ensuring all required maintenance is performed and properly documented.
Jul 17, 2017 preventive maintenance checklist for centrifugal pumps to guarantee an efficiently performing centrifugal pump that provides service with minimal repairs and shutdowns, institute a sound preventive maintenance program. General pump inspection and maintenance schedule split case pumps excludes motors, engines, gear drives, vfds, and controls. Maintenance of the drive should be carried out according to the drive manufacturers instructions. Gear pump working, construction, maintenance marinersgalaxy. The gear pump learning system 95pm1f covers the function, operation, installation, and maintenance of the versatile gear pump. For tipping and less demanding applications hyva offers a wide range of gear pumps. Read this manual carefully to learn how to safely install. What to look for in centrifugal pump maintenance salvina.
General pump inspection and maintenance schedule packaged pump systems any additional inspections, maintenance, or tests required by nfpa standards for fire pumps are excluded. The purposes of a relief valve in a pressure compensating pump system are. Lobee gear pump operation and maintenance instructions for lobee gear pumps lubrication it is of utmost importance that a gear pump never be run dry. A drive gear that is driven by a motor rotates an idler gear in the opposite direction. Figure 1 is a simplified diagram of a typical centrifugal pump that shows the relative locations of the pump suction, impeller, volute, and discharge. Pump and motor division chemnitz, germany 2 heavyduty pumps and motors table of contents series pgp, pgm. Gear pump manual original instructions albany pumps. Despite how ubiquitous gearboxes may be, its easy to overlook their repair needs. Construction bronze rotary gear standard pump housings and helical gears are made of top quality bronze. Gear pump maintenance, stainless gear pumps, hydraulic gear. Maintenance and troubleshooting of progressing cavity pumps.
Disconnect the intermediate column from the steering gears input shaft. Learn more about eatons external gd5 series gear pump. The gpm of the fixed displacement pump can not be varied. Group 2 gear pumps technical information group 2 gear pumps technical information p101 000 high quality case hardened steel gears with superior surface finishing pressure compensated bearings made of antifriction alloy ptfe bronze based bushings for long life and high performance various shaft options including. Clogged impeller or foreign material in pump disassemble pump, inspect and remove foreign material, reassemble and set impeller with correct lateral settings 9. Small gear pumps usually operate at a speed between 1,700 rpm and 4,500 rpm, and larger models most often. Review different pump types commonly used understand the difference between centrifugal. Relief valves and fixed displacement pumps provides a flow path for the pump volume.
Small gear pumps usually operate at a speed between 1,700 rpm and 4,500 rpm, and larger. Troubleshooting and preventive maintenance of hydraulic systems. This bulletin illustrates the mechanical seal which is standard in the catalog pump. Adjust packing should drip 25 times per minute lube packing typically 23 pumps per week. Gear pump operation and maintenance maintenance world. A gear pump is a kind of rotary pump and is defined as a positive displacement pump. The article has been written keeping in mind the level and interests of students and the beginners in operation. Operating problems in a centrifugal pump which can cause damage to the centrifugal pump can be either hydraulic or mechanical. Faulty or dirty flow control or other feed related valve. This low maintenance pump can transfer a wide array of fluids and fluid viscosities for spraying, recirculating, cleaning, and fluid transfer applications. As you can see that, gear pump consists of the two gears, one is the driver and another is the drivein. All content contained herein is subject to change at the companys discretion without notice. The pumping gears are of equal size and are the only two moving parts in the pump, which promotes longer life suction. The prv can be piped back to the suction side of the pump or into the supply tank.
The fluid is also forced into the discharge line by the meshing of the gears. Consult the maintenance manual before dismantling or performing maintenance work. The rotating element which includes an impeller and a shaft. Pumps are available with bronze bearings and grease fittings or with carbon bearings which require no lubrication. The suction lift is limited by fluid vapor pressure or by low viscosity. Tuthill magnetically coupled external gear pumps operate by moving fluid between two spur or helical type gears see figure 3 below. The working principle of the external gear pump is illustrated in figure 1. This checklist incorporates all range of motors equipment. Troubleshooting guide continued troubleshooting guide part 2 problem possible cause corrective action rapid pump wear abrasives in fluid install suction strainer. Installation, operation, maintenance user instructions user instructions 71569246 2167be1. Pump maintenance michigan water environment association. Pumping nonlubricating liquids is tantamount to running the pump dry. Mechanicalmisalignment, sticky, warped, or binding ways, b ent bracket or other mechanical failures.
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