Precision maintenance pre alignment check list following this checkoff list will ensure an alignment that will be kept when the machine is in operation and will last for an extended mean time between repairs. Proper alignment is the largest factor in determining the life of bearings, seals and couplings. If a manufacturer of a machine or coupling require tighter alignment tolerances, those should be used. Alignment is not required for pumps with the monoblock configuration. Imperial tolerances are given for machines with a 60 hz supply running at multiplesfractions of 3600 rpm. There are several steps which need to be taken for a successful alignment job. This is probably the most common configuration of coupled machines in industry. It is a major cause of repeatability problems with shaft alignment measurements, whether using dial indicators or a laser alignment system. If your motor does not have a c or d end bell, one can be installed when the motor is rewound. Machine type pump motor vertical angle horizontal angle horizontal offset thermal compensation stationary s machine movable m machine vertical offset offset 2.
For example, the only correct way to express shaft alignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this. In addition to alignment quality and repeatability problems, it can cause of machinery vibration, reduce life in electric motors, and cause internal clearance problems. You make calculations to see how far the driver must be moved to align the centerline of the pump to the. The primary reasons why machinery is misaligned is lack of proper training, improper tools to do the job, and that people are not given enough time to do it right. Find best questions related to pump alignment, pump piping and get pump alignment, pump piping qa. This list contains all the items that should be checked. This list contains all the items that should be checked in a worst case scenario. Possible causes and solutions to misalignments in pumps. Pump alignment report format free download as word doc. If the pump or motor is damaged or leaking, electric shock, fire, explosion, liberation of.
The objective of optimized shaft alignment is to increase the operating life span. Rating is available when the video has been rented. Here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. Therefore, less accurate methods can be used at slower shaft speed. One of the most important parts of pump setup is making sure that the pump and the drive motor are carefully aligned. Misalignment may account for over 50% of malfunctions in rotating machinery, leading to problems such as worn or broken couplers, vibration, and excessive wear of bearings, seals and wear rings. This second edition is the result of over 38 years of hard work and many thousands of hours of writing. If your motor does not have a c or d end bell, one can be. W0365a d03 nema g03 iec adapter kits for dg03 part number description a040011202 d03 pumpmotor adapter kit for nema 56c, 143145tc cface motors. Alignment simple steps to accurate alignment its a long. It is highly recommended to check and, if necessary, correct pumpmotor alignment as part of the commissioning process, before the pump is placed in service. To achieve good, repeatable results, pre alignment steps must be done.
Includes compass measurement mode to enable flexible, reliable, and repeatable measurements using an activated electronic inclinometer. Installation, operation, and maintenance manual goulds pumps. Check angular alignment with a micrometer, vernier or caliper. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might result in break down of the machine. The motor is the prime mover, transferring power to the pump by the use of a coupling. Build a dam around the base plate perimeter that is. The bent shaft affects alignment process by showing improper reading. Coupling installation alignment for monoblock pumps. Alignment report hung seng huat engineering product co. Pumpmotor adapters 1 d039912403a wanner engineering, inc. When this coupling is left connected and tightened, misalignment cannot be measured conventionally by rotating both coupled shafts, because no relative movement between the shafts is allowed to occur, as would. How to do the alignment for vertical pumps with motor.
Couple6 allows the user to flip the motor graphics to match the pumpmotor orientation without having to turn the display upside down. For maintenance personnel in drinking water and wastewater. Bring a wire brush for cleaning shims and baseplates. Although we will focus largely on the motor blower installations, the issues discussed apply to most types of rotating machinery. In isolation each strategy can help to reduce unexpected machine failure but taken together they form the hub. Motorpump alignment is the process of aligning shaft centerlines between a motor and a pump.
If, on the other hand, you update your knowledge of shaft alignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused. Intrinsically safe products are used in potentially explosive environments. Easylaser is used to align pumps and mo tors for all types of. The fluke 830 laser shaft alignment tool is the ideal test tool to. A former engineer stated that the authors first edition contained more alignment information than the sum total of all other works in the library of congress. The ergonomic display unit with intuitive touch screen navigation makes your alignments fast and easy, whilst innovative features, like the free measurement, increase the alignment performance. Lastly, a final set of readings was taken to confirm the results of the move and document the as left alignment condition. The motor was quickly and successfully aligned, attaining a final alignment result that fell within the excellent tolerance standard for the speed of rotation involved, as shown. Clean, dress up and file any burrs from mounting faces and anchor bolt holes. In most cases, a quick glance at the table will tell whether coupling misalignment is allowable or not. Simple steps to accurate alignment its a long way to the top if you want to align cooling tower fans with spacer shafts. Our technicians have over 55 years of combined experience and are able to provide expert support for municipal, industrial, and commercial applications. Empowering pumps is the information and connection hub for the global pump industry.
It is highly recommended to check and, if necessary, correct pump motor alignment as part of the commissioning process, before the pump is placed in service. Our technicians have over 55 years of combined experience and are able to provide expert support for municipal. Pumps need to be sized based on pressure, flowrate and head. For example, the only correct way to express shaftalignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this. To be classified as an exatex product thorough tests must be completed. Hence, this technique offers precise alignment and secure hold. Jul 26, 2014 alignment procedure taking alignment readings step no. Shaft alignment training course ppt presentation and machine. Machine alignment for maintenance personnel in drinking water and wastewater facilities. Machinery alignment tolerance tables impact engineering. The procedure for doing reverse dial indicator alignment is not a difficult one. Measure at intervals around the periphery of the couplings.
But usually a pump and electromotor have different coefficients of thermal growth and it is very important. Above thirtyhorse power 22 kw you hang the pump on the motor. Laser alignment is an essential component of a viable maintenance. Soft foot is a common issue when aligning rotating equipment. Safety information these warnings apply to pb series basic pumps. Avace mafactri office the importance of motor shaft alignment the objective of optimized shaft alignment is to increase the operating life span of rotating machinery. In isolation each strategy can help to reduce unexpected machine failure. Its purpose is to convert energy of prime mover an electric motor or. Visually check coupling, pipehangers, base bolts, coupling spacing etc.
Vertical condensate pump alignment the rigid or solid coupling makes taking meaningful alignment measurements virtually impossible. Our vision is to build a digital community through websites, enewsletters, and social media channels that allows pump industry professionals to exchange ideas, news stories, product information, case studies, videos, event information and more. Close coupling is the preferred method of joining pump and motor as it allows a motor to be directly mounted onto a pump. This will provide the true alignment between the pump and motor. Does alignment procedure for vertical pump differ from horizontal pump alignment in anyway. Build a dam around the base plate perimeter that is to be watertight. Easylaser measurement and alignment systems comes with a wide range of application programs apps. Update your shaftalignment knowledge peerless pump. I want to know how alignment of pump shaft is done with motor shaft. You can flip the machine orientation in 4 of the 5 alignment steps in couple6 and the machines will be flipped in all the other steps. Up to about thirtyhorse power 22 kw you hang the motor on the pump. The alignment of shaft with the bearing and housing, which is a manufacturing tolerance stackup of the bearing parts and the housing bores and faces. In the article temperature growth influence on the shaft alignment of centrifugal pump unit is examined. Pdf effects of motor misalignment on rotating machinery.
The book is reference material on rotating machinery basics, pump overhaul, mechanical seals, basic vibration, and shaft alignment. A millwrights guide to motor pump alignment tom harlon on. All motors are fitted with rigid, steel mounting cradles with resilient motor mounts to facilitate easy alignment of motor and pump shaft and ensure quiet, vibrationfree operation. Pdf it is common knowledge that the alignment condition of rotating machinery affects the. The amount of alignment correction at the motor can seem to be very large. Shaft alignment is a method or procedure by which shafts of machines such as motors and turbines are connected to a generator or pump in proper alignment. We have a vertical turbine pump having capacity of 20000cum per hour and pressure head 16. Alignment is important, but we can get away with the least accurate method.
Xt550 intrinsically safe laser shaft alignment, exatex. Shaft alignment training course ppt presentation and. Grout if this base plate is to be grouted, ensure that you have the mounting surface flat and level for correct alignment of pump and motor. However, small movements of these components can occur during shipping and while the pump set is being installed at its final location. A practical guide to shaft alignment plant services. Produce pdf reports directly from the display unit and save to usb memory.
This document was uploaded by user and they confirmed. Fluid process equipment is a leader in the fluid process service and repair industry. Close coupling also provides a compact unit that is often less expensive than an equivalent long coupled assembly. Laser alignment system shaft alignment tool tksa 41 skf. Shaft alignment fluke 830 laser shaft alignment tool fluke. Precision maintenance prealignment check list following this checkoff list will ensure an alignment that will be kept when the machine is in operation and will last for an extended mean time between repairs. The data validity rule 1 shown in following equation.
To achieve this goal, components that are the most likely to fail must be made to operate within their acceptable design limits. Pdf basic shaft alignment workbook for industrial rotatin. Metric tolerances are given for machines with a 50hz supply running at multiplesfractions of 3000 rpm. For skf shaft alignment tools skf tksa 20 shaft alignment report here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. A typical pump in an hvac application requires a fourpole motor 1,750 to 1,800 rpm, depending on slip. The objective of optimized shaft alignment is to increase the operating life span of rotating machinery. How to do the alignment for vertical pumps with motor pump. A 100 hp electric motor on a 50hp load will work and run smooth and cool and only use 50 hp of energy. The alignment training is suitable for technicians undertaking machine alignment, coupling alignment, motor alignmnet, pump alignment, etc. Even if you have a laser alignment system, it is a good idea to have a couple of dial indicators, a good feeler gauge and a micrometer in your alignment kit. If, on the other hand, you update your knowledge of shaftalignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused.
Dec 17, 2011 even if you have a laser alignment system, it is a good idea to have a couple of dial indicators, a good feeler gauge and a micrometer in your alignment kit. Machinery alignment tolerance tables the suggested alignment tolerances shown here are general values based upon experience and general industry standards and should not be exceeded. A fine flat file is good for removing burrs on baseplates and machine feet. With the focus on improving alignment practices, the skf shaft alignment tool, tksa 41, is one of the industrys best value alignment solutions. The adapter solves the problem of there is no time to do an alignment. Minimize the soft foot under the motor before performing alignment.