Attach the piano wire to the tools and position the piano wire. The tksa 31 is skfs most affordable solution for easy laser shaft alignment. Virtually everything we consume or use has been touched or produced in some manner by rotating gear. Using the default printer type pdf file, measurement reports may be saved.
Output as pdf file has been powered by universal post manager plugin from. When its centered, the shaft droop will have been eliminated. Shaft misalignment is the usual culprit behind high levels of machine vibrations and premature bearing fatigue. A misalignment of these three components as small as 0. Shaft aligning procedure preliminary checks visually check coupling, pipe hangers, base bolts, coupling spacing etc. Sysframe 35 before upgrading to the latest version file available under downloadearlier versions.
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. The ins and outs of engine and shaft alignment part i. Modelling of propulsion shaft line and basic procedure of shafting alignment calculation article pdf available in brodogradnja 593. Install the tail drive shaft alignment tools turbine helicopters. Shaft alignment is the process whereby two or more machines typically a motor and pump are positioned such that at the point of power transfer. Bearing load of all main engine bearings and propeller line in service condition to be within specified limits. This laser reference beam passes through the strut tube or cutlass bearing, the stern tube, support bearings, if any, and to the engine or reduction gearbox. Live view supports intuitive measurements and facilitates horizontal and vertical alignments. Running gear alignment professional boatbuilder magazine. A guide to shaft alignment achieving a satisfactory shaft alignment is paramount for the safe and reliable operation of a ship during its lifetime.
The full procedure is beyond the scope of this article, but in short. Aim to have all soft foot readings within 2 mils thou. Special brackets are available for alignment with locked rotors to increases the safety of the operator. The content of this infographic is a basic guide to realign machines. Those who purchase new alignment instruments and hand them out to field technicians who lack the knowledge of alignment fundamentals are often. Choose a location on the main body of the machine bearing housings or adjacent.
Alignment of the seatorque shaft system will take approximately 20 minutes or less to complete if the following parameters are met. T0088 on the forward end of the short shaft and the aft end of the long shaft. Thanks to flexible brackets you can install the equipment in the most appropriate place. Precision shaft alignment using dial indicators abstract even with the advent of new computerized dial indicator and laser alignment systems, knowledge of the basics of shaft alignment is a must. Precision alignment is an essential part of a proactive reliability program. The bent shaft affects alignment process by showing improper reading. Use this simple and effective procedure for shaft alignment of your rotating equipment. This paper presents an approach to determine the changing displacement of the propulsion shaft due to the vessels hull deflection. Fluke 830 laser alignment tool manual pdf instrumart.
The advanced laser shaft alignment system with enhanced measuring and. Always check the shaft alignment with all the piping in place. This alignment technique uses a laser mounted in the region of the propeller and projects a laser reference beam forward. Com is a knowledge management km consulting based maritime service provider being established among experienced and skilled professionals in the naval, maritime and offshorerelated services for more than 50years, having a vision and. When the boat is running and the propeller spinning, the shaft will align itself but not if the basic alignment is out. Sighting through as part of shaft alignment procedure eliza jaryszkami ska west pomeranian university of technology, szczecin, institute of manufacturing engineering, al. Shaft alignment definition most shipboard configurations of shafts and bearings are likely to be aligned when some or all of the centrelines of the bearings are offset from the theoretical straight line condition, so as to achieve an acceptable bearing load distribution and shaft slope. The installation procedure for the firmware is described in the document release notes xt11.
The indicators are zeroed on the top and read at the bottom. Engine and propeller shaft alignment are among the most critical aspects of propulsion system. Propulsion shaft alignment method and analysis for surface. Standard procedure propeller shaft angle you can use a socket and angle gauge in place of the inclinometer 1 place transmission in neutral. A machine properly aligned will be a reliable asset to the plant, it will be there when it is needed and will require less scheduled and unscheduled maintenance.
In practice, proper alignment is difficult to achieve without using alignment equipment such as dial indicators or laser alignment tools. 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. To keep standard rotating machines running smoothly, industrial maintenance personnel must stay updated with various alignment tools and methods. With feeler gauge find obvious gaps and fill them with shims, taking care of any rough soft foot condition. Example of sighting through using optical or laser instrument fig.
Easylaser extreme is one of the toughest and most robust measurement and. A warning identifies conditions and procedures that are dangerous to the user. For alignment in potentially explosive environments atexex. Draft procedure for mounting ol2r fixtures on a horizontal shaft machine. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. To provide an overview of alignment, the discus sion in this. The ins and outs of engine and shaft alignment part i from the. Alignment is achieved by moving the front andor back feet of one machine up, down, and sideways, until the shafts are aligned within required tolerances. A new motion graphic from ludeca outlines an easy and effective way to align your rotating equipment and brings you one step closer to best.
The reports are automatically generated as pdf files and they are displayed on. Shaft alignment is the process of adjusting the relative position of two coupled machines such that the centerlines of the respective shaft form a straight line when the machine is running at normal operating temperature. Propeller shaft alignment forward alignment approach. Remove the aft tail rotor drive shaft cover and open remaining covers. Thats why the shaft alignment software was designed to help walk you through the stepbystep process of aligning your rotating machinery. The natural deformation of shaft sections is taken into account with rational alignment programmes and coupling conditions can be used to position shaft sections and to check alignment. It is aliniometer during concentricity measurements on the shaft bracket on the conro vessel. 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. 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. Prop shaft alignment yearly maintenance item moomba. Proper shaft alignment is especially critical when the motor is operated at high speeds. The pilot bushing is damaged, dents can be seen between the 12. Usually you will have to add or remove shims in this step. Jaryszkami ska, sighting through as part of shaft alignment procedure 67 fig.
The proper shaft alignment procedure is to secure the. Clean, dress up and file any burrs from mounting faces and anchor bolt holes etc. The model considered is a 60 m long shafting system of a ship consisting of 10 bearings, one gearbox and one main engine. Sheng, ndition of the shaft alignment is crucial in order to make intelligent.
For two shafts to be called aligned, their shaft centerlines need to coincide. To obtain optimal parameters for service conditions. The easylaser xt alignment app is used together with the easylaser xt measuring. Understanding the need for offset shaft alignment vibralign. Tmea2skf laser shaft alignment alignment performed by. The objective of shaft alignment is to minimize coupling forces by making two rotational axes form a single line while the machine operates. For this procedure, precalculation is used to find the gap and sag that should exist between couplings, when shaft alignment is. Grc phase 3 focused on identifying any abnormal loading on the gear, shaft. The primary and optional data entry windows intuitively tells you what information is required, and if you make a mistake, there are background routines to point out your errors.
We suggest the following one day classroom alignment training class on rotating equipment alignment practice. 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. Design process the classic alignment technique would. The default measuring procedure is to make manual measurements in the three. Live view supports intuitive measurements and facilitates horizontal and. Alternatively, many laser alignment systems have a soft foot mode that can be used. The rotating equipment machine shaft coupling alignment training course will cover several alignment methodstechniques like straight edge, rim face alignment and reverse dial indicator alignment procedure. Good shaft alignment practice should be a key strategy in the. If the shaft is misaligned, you must realign the unit to prevent shaft breakage and damage to bearings, pump casing wearing rings, and throat bushings. 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. When you install or assemble pumps driven by electric motors, make sure the unit is aligned properly.
The vertical move is the part of the alignment process that aligns the two shafts centerlines into their proper up and down position. A practical guide to shaft alignment plant services. The objective of optimized shaft alignment is to increase the operating life span of rotating machinery. Start the app by tapping on the shaft alignment app icon, found on the home. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. Standard industry norms for alignment tolerances are cited in table 1. The length of the motor shaft between its bearings is the resistance arm.
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