Nonstandard application procedures the following conditions may affect the drive selection procedure, drive size and auxiliary equipment being furnished. A practical guide to shaft alignment plant services. This procedure is to be used as a guide for the initial system installation, or as a reference for optics replacement, or for re alignment if necessary. Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns. 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.
Shaftalign is the entrylevel device for starting smoothly with shaft alignment, providing even untrained millwrights with highaccuracy measurements. So what if the actual hot alignment readings show a large disparity from the anticipated hot position. 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. Easy alignment of coupled, uncoupled, and nonrotatable shafts. Pump alignment form fill out and sign printable pdf. Richard massey president aline manufacturing company, incorporated. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. Universal joint alignment procedure for passenger cars achieving front and rear ujoint alignment angles within the acceptable operating angle range is necessary to avoid driveline vibration and to allow the ujoints to last a long time. Tmea2skf laser shaft alignment alignment performed by. Basic shaft alignment workbook for industrial rotatin n1achincrv. Dual psd, dual laser beams and dual inclinometers for superior control and accuracy. The shaft alignment procedure is not expected to start before.
Facilities instructions, standards, and techniques volume. Shaft aligning procedure preliminary checks visually check coupling, pipe hangers, base bolts, coupling spacing etc. Reduced downtime shaft misalignment a major cause of costly failure and downtime is eliminated. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or reference to the manufacturers of the machinery. Alignment software available for measurement data management.
Implements a full cycle of the shaft alignment procedure. Vessel in afloat condition engine in sagged condition piano wire verification. View a pdf document of sample slides from the modules 1 to 8 of the shaft alignment course sample slides in the machinery shaft alignment training course. Mar 15, 2016 this video is intended to guide a user through the shaft alignment process for a typical mid engine, direct drive tournament ski boat. Alignment process alignment process consists of the design and analysis, the alignment procedure and measurements. Measurement of gapsag for flange coupling main engine intermediate shaft.
The truth is that it is virtually impossible to correctly align engine and shaft with the methods that are commonly used. Accurate alignment is vital to the operating life of rotating equipment. Alignment procedure represented by resultant images a. Because of the rubber mounts, the engine will not be in the same position when running as it is when stopped, when the alignment is made. It is assumed that the gantry is square to the xaxis, all support equipment is in place and properly working, and all of the. The objective of accurate shaft alignment is to increase the operating life of the machine. An essential component of any successful alignment procedure is. Shaft alignment training course ppt presentation and. Recheck alignment after reaching operating temperature. The main purpose of shaft alignment is to make sure that the center line of the motor rotor shaft coincides with the center line of the driven machinery i. Recommended practice for machinery installation and. Reverse alignment understanding centerline measurement by c. Propeller thrust and engine torque will cause the engine to change position.
Achieving proper alignment, however, involves much more than merely adjustment the machines so that the shafts are coaxial. The way to complete the online pump alignment form on the internet. All types of machines having shafts as an integral part of their structure, experience problems related to shaft alignment. The surrounding area should be free of obstructions and debris. Bearing clearance radial gap between the shaft and the bearing shell. The basic procedure for determining vertical alignment of shafting and gears is to calculate, for the cold condition at time of aligning, a shape of shaft line that will produce in the hot operating condition essentially equal loads on the main gear bearings and reasonably equal loads on line bearing. Service bulletin propeller gearbox alignment procedure description the alignment of your engine, engine mounting plate, and propeller gearbox is critical for a smooth running and long lasting gearbox. Sep 01, 2015 failure to ensure this alignment damages machinery and disrupts efficiency. Since the pump shaft can not be turned when uncoupled and resting on the bottom, the laser readings were taken using the static measurement mode, which is a process that permits a reading to be taken in any cardinal or subcardinal position. Regarding john gross question about how a shaft can be aligned with so many things being so wobbly. Shaft alignment has in recent years become more of a challenge due to increased power, lower shaft speeds and heavier propellers in combination with a shorter propulsion shaft. 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.
The ergonomic display unit with touch screen makes the instrument very easy to use and the builtin machine library helps storing alignment reports for multiple machines. Shaft alignment procedure mantenimiento planificado. The intuitive and affordable laser shaft alignment system skf shaft alignment tool tksa 31 the tksa 31 is skf s most affordable solution for easy laser shaft alignment. Shaft alignment can be done utilizing several methods and tools, such as straightedges, calipers, dial indicators, optics, or laser systems.
Veedrive ski boats require additional steps and instruction. In pursuit of that goal, vibralign invented its own method of correcting misalignment called vertizontal which allows for the vertical and horizontal adjustments to be made together in one pass, saving valuable time and ensuring accuracy the first time around. Virtually everything we consume or use has been touched or produced in some manner by rotating gear. That is to control the crankshaft deflection of the last unit and the engine aft end static load. The data validity rule 1 shown in following equation.
Shafting alignment procedure considers static and pseudostatic loading of the shafting in order to determine its static response. Provides all required calculations concerning marine propulsion shaft alignment and bearing loads. For this training, you will perform the alignment with the shafts uncoupled and the indicators mounted in direct contact with the rim and face of the movable shaft s coupling. The most reliable way to ensure machinery works as it should, without disruption, is through a shaft alignment with dial indicator procedure. How soon are you planning to invest in asset condition management tools. Shaft alignment training course ppt presentation and machine. With feeler gauge find obvious gaps and fill them with shims, taking care of any rough soft foot condition. 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. What is shaft alignment it is collinear of two center lines.
Shaft alignment is a key factor in reducing vibrations and. Introduction the main propulsion shaft line is the essential part of a modern ship propulsion system, exposed to various conditions throughout the ships lifetime. Proper alignment of rotating equipment has a long been recognized as a prerequisite to safe, reliable operation. The bent shaft affects alignment process by showing improper reading. Alignment free drive to be used in right or lefthand assembly, with only a dipstick and torque arm relocation. Shaft aligning techniques shaft alignment by conventional method shaft alignment by dial test indicator dti shaft alignment by using laser equipment shaft alignment by using computer. In nauticus machinery shaft alignment these effects can be carefully considered when designing an optimal shaft line in order to avoid problems in operation. Multiple sequence alignment multiple sequence alignment an alignment of heads sequence alignment a way of arranging the primary sequences of dna, rna and amino acid to identify the regions of.
Fixture mounting procedures are obviously dependent on the specific type of hardware being used. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. This shaft alignment video presents the most basic concepts of alignment. Feb 04, 20 shaft alignment of rotating equipment is an essential part of machinery maintenance. With a loadonpad design, figure 1 the shaft is free to laterally within bearing clearance, and alignment data is difficult to obtain without temporary bearing shims to stabilize the sham with a loadbetweenpad design, figure 1 b, the shaft remains stable during the alignment procedure. Do not use force against the crankshaft or driven equipment shaft while taking the indicator readings. Measure, diagnose, and correct soft foot with the assistance of the laser system and feeler gauges. Here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. Its double xy position detectors let you measure any degree of misalignment in a single pass, regardless of distance and coupling size. A guide to shaft alignment achieving a satisfactory shaft alignment is paramount for the safe and reliable operation of a ship during its lifetime.
Repeat this procedure for the 3 to 9 oclock direction. The procedure for determining whether the engine mounts are holding the engines steady is very simple, it is called the back down test. Shaftalign shaft alignment system for beginners pruftechnik. Bearings, mechanical seals, packing, and couplings are all directly affected by the alignment of shaft center lines. Prior to the actual alignment procedure, it is essential that.
The pump shaft should now be centered in the stuffing box and in its guide bearings. Ppt alignment powerpoint presentation free to download. Autoflow functionality for guided 3step measurement. Aim to have all soft foot readings within 2 mils thou. The advanced tools of the editor will direct you through the editable pdf.
Shaft alignment is the positioning of the rotational centers of two or more shafts such that they are colinear when the machines are under normal operating conditions. Oscillating propeller shaft causing stuffing box clamps to loosen and work free, flooding or sinking the boat. Produce pdf reports directly from the display unit and save to usb. Now the shaft alignment measurement procedure can begin. In this online shaft alignment training by cte skills, workers will learn how to use a dial indicator to align shaft. Use this stepbystep guide to fill out the pump alignment form swiftly and with ideal precision. Lloyds register emeas technical investigations provides a comprehensive range of measurement and advisory services to help owners, operators and yards to help to ensure that the best. 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. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might. Considers bending in both vertical and horizontal planes, a detailed bearing model with irregular bush shape etc. Use this simple and effective procedure for shaft alignment of your rotating equipment. A simple and effective procedure for doing shaft alignment of rotating machinery. Several equipment alignment methods, especially the reverse dial indicator method, which is the principle used in laser alignment is covered in explicit detail.
Pdf basic shaft alignment workbook for industrial rotatin. Nov 19, 2015 as found shaft alignment results figure 1. Measure and correct alignment of the machine to achieve the final alignment to the required targets within tolerances. Alignment procedure an executable part of the alignment process where alignment is performed in accordance with the defined requirements. Separate coupler halves to manufacturer specifications to allow for shaft growth and for the motor to find its electrical center. Alignment report hung seng huat engineering product co. Hot check is also a program in some of the fixturlaser shaft alignment systems. Thats why the shaft alignment software was designed to help walk you through the stepbystep process of aligning your rotating machinery. The purpose of this document is to provide guidance for vertical shaft alignment including when alignment procedures should be considered, and therefore, all information in this document is presented as plain text as required. You must first take the wobble out of it, then align the coupling flange on. Requirement of shaft alignment every of shipyards must to meet the recommendations to prevent or minimize disturbances of the engine position, established bearing location, stern tube bearing inclination.
The book is reference material on rotating machinery basics, pump overhaul, mechanical seals, basic vibration, and shaft alignment. Recommended practice for machinery installation and installation design chapter 1introduction 1 scope 1. Whats more, the alignment free drive offers registered fit and bolttogether construction for quick, proper. Shaft alignment methods explained bright hub engineering. Universal joint alignment procedure for passenger cars. The shaft alignment training course provides a highly practical knowledge of the use of dial gauge in coupling alignment. Shaft alignment handbook third edition by john piotrowski pdf. View a pdf document of the machine alignment training course content and coverage shaft alignment training course content. Find out more about sensalign, the unique lasersensor system that delivers precise shaft alignment measurements easily and quickly. Pdf a laser shaft alignment by ipspsds for rotary machine. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might result in break down of the machine. Nov 08, 2017 at present man diesel recommended procedure prior to chocking is. Vibralign is committed to helping businesses use their resources more efficiently and effectively. A misalignment of these three components as small as 0.
Shaft alignment industrial wiki odesie by tech transfer. This video is intended to guide a user through the shaft alignment process for a typical mid engine, direct drive tournament ski boat. Pdf laseroptical alignment of shafts in rotating machinery is. My next blog will discuss using the free hot check app to compare a cold position vs the hot position.
Shaft misalignment a major cause of costly failure and downtime is eliminated. The goal of the alignment process is to create a straight line through the coupling, as shown in figure 1. Dial gauge alignment procedure in covered with detailed animation. The process with rotalign pro is identical, except that the adjustment is monitored by observing beam movement in the coordinate display screen. Shaft alignment handbook third edition by john piotrowski pdf, lots of the substance amenities taken for granted in the modern society are made possible by the many rotating machinery systems found in each area of the planet.
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