Reverse alignment module 1550109 annotated instructors guide. Using your own dial indicators, dial indicator we use is a ls starrett, 81141j. Fixturlaser dials this is a standalone app for performing shaft alignment, using indicator dials, on typical applications such as a motor and a pump. Despite what some manufacturers claim, correct overhang length and alignment is critical to obtaining proper audio reproduction without distortion and avoiding unnecessary record and stylus wear. There are many reasons why dial indicators are a viable option to measure alignment. Performance tasks under the supervision of the instructor, the trainee should be able to do the following.
Now the shaft alignment measurement procedure can begin. Hp dial gauge with a 58 mm dial diameter, 0,001 mm. The rim and face method can be used with the simplest of installations. At this diameter the maximum allowable gap would be. If you can afford use laser alignment if you dont have dial gauge,then i. Dial indicators are an essential tool for maintenance pros. This occurs when using a twopole motor 3,500 to 3,600 rpm. 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. For example, a machine running at 1800 rpm with 12 inch of spacer shaft length would allow a maximum offset of. This allows the use of whole numbers and avoids confusing decimals. Richmond, va 23236 phone 804 3792250 fax 804 3790189 2011 vibralign, inc.
It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. By following this principle, the alignment of machinery can be easily accomplished using the formulas. When using our laser alignment systems you measure and align the two centers of rotation so the standard is different. Fixturlaser alignment systems calculate the angularity and offset between the two centers of rotation. The capital cost outlay for a laser system versus a set.
Sometimes by using the feeler gages alignments are also carried out. The advanced laser shaft alignment system with enhanced measuring and. When using this form, you may find it convenient to use mils instead of thousandths of an inch. Dial indicators are measuring devices designed expressly to measure relative position.
The shaft alignment training course provides a highly practical knowledge of the use of dial gauge in coupling alignment. Comparing parts to a master part during inspection. Dial gauge alignment procedure in covered with detailed animation. Then, check the height of pump shaft with the height gauge. The capital cost outlay for a laser system versus a set of dial indicators and magnetic bases is the obvious first. Simple and more accurate method is use of dial gages. Practice alignment procedure when one or both shafts are locked practice alignment when one or both shafts have limited rotation. The app guides the user through the complete measurement and alignment process simplifying otherwise cumbersome tasks such as calculations and determination of directions and amount to move the machine to achieve a perfect alignment. Another measurement is taken on the face of the coupling to determine shaft angularity. A dial indicator would be used when more accuracy is required or desired. Turntable cartridge alignment gauge protractor tool.
Affordable and search from millions of royalty free images, photos and vectors. Practice and learn different shaft alignment methods using dial indicators or lasers. Perform reverse alignment, using the alignment demonstration rig and the graphical chart. Several equipment alignment methods, especially the reverse dial indicator method, which is the principle used in laser alignment is covered in explicit detail.
There are several steps which need to be taken for a successful alignment job. This is a precision task and cannot be done by eye or guess work alone. When using a rimface method, one measurement is taken on the rim of the coupling to determine shaft offset. Dial indicator the dial indicator is a precision measuring tool that measures relative distances. Always check the shaft alignment with all the piping in place. This paper is written by a laser alignment iconoclast. Its flexible components are intended to cater for different shaft dimensions and coupling configurations. The mathematical formula for calculating adjustments to properly align a shaft using the reverse double dial indicator alignment method follows a basic rise over run geometric principle. Dial indicators can have gear trains that amplify the movement anywhere from 40. Align your miter gauge to an exact 45 or 90 setting. Commercial alignment tools like the hunter system we have start the alignment process at the rear of the car get the drive wheels aligned then adjust the fronts before each track outing, we put the cars on the rack and give an initial alignment based on data from previous track outings i. Figure 52 shows the calculation using the reverse dial alignment form. This can give a dial indicator a discrimination, or resolution, of 0.
Ritec alignment kit is a powerful tool to adjust shafts alignment using dial indicators accurately and easily. Use it to measure the difference in distance to two or more locations. For those currently using dial indicators without the budget to throw down on a laser alignment system, the free lovejoy dials app will help provide some of the automated calculation benefits of using laser tool. Correct the run out by your experience and also you can use equal triangles rule. Shaft laser alignment 3 benefits over dial indicators.
With the help of dial, mounted on a vertical stand generally refered as height gauge pick up the height of axis line of the motor. Reverse alignment annotated instructors guide module 1550109. Combo beltsheave red laser la12000r and reverse dial indicator system. For maintenance personnel in drinking water and wastewater. When you install or assemble pumps driven by electric motors, make sure the unit is aligned properly. Alignment report hung seng huat engineering product co. The dial indicator is great for checking alignment and runout.
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. If the front is farther out than the rear, that wheel has toeout. Reverse alignment module 1550109 annotated instructors. The procedure for doing reverse dial indicator alignment is not a difficult one. A popular method used for years and is still in use today is the rim and face method. Shaft alignment by dial test indicator dti horizontal alignment parallel shaft alignment by dial test indicator dti vertical alignment angular pump motor the indicators are zeroed on the top and read at the bottom record the indicator reading and consider the sag compensation by subtracting it from the recorded reading move the motor to the required distance for vertical alignment by adding shims in place tighten all bolts and take and check the readings if the readings are within. Rating is available when the video has been rented. This method produces acceptable results, but is less accurate than the reverse dial indicator method covered in this application note. I was using the svg path for the dial given in the plotly tutorial, namely. To use a dial indicator, mount it on the coupler halves as shown in figure 2. Perform reverse dial indicator alignment, using the mathematical equation. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication.
With the coupling broken, mount the fixture to the stationary shaft or coupling hub. Shaft alignment report measurement program horizontal operator user measurement unit mils temperature 80. Step 4 precision alignment with a dial indicator youtube. Toe is the difference between the distance from the front of one tire to the other, and the rear of one tire to the other. Rotate the halves together, always matching the chalk mark. Dial gauges or laser measurement devices are often used to provide more accurate measurements of the degree of misalignment between the motor and pump shafts. Not available on all models mounting the dial gauge mount by clamping to the stem. 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.
Then move the gauge to the rear of the tires and align the fixed end with the scribe line. Nov 21, 2016 the dial gauge can show red defined by actual start and actual end, yellow defined by target start and target end, and green defined by the rest of the range out of min and max. Toein alignment gauges pegasus auto racing supplies. A rough alignment is necessary due to the range limitations of the dial indicators.
There are two commonly use methods to align rotating machine shafts using dial indicators. 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. Shaft alignment industrial wiki odesie by tech transfer. Shaft alignment by dial test indicator dti horizontal alignment parallel shaft alignment by dial test indicator dti vertical alignment angular pump motor the indicators are zeroed on the top and read at the bottom record the indicator reading and consider the sag compensation by subtracting it from the recorded reading move the motor to. Dec 31, 2007 best methode is to use double dial gauge method. Use the straight edge for radial runout and feeler gauge for. The primary parts of a dial indicator are the face or dial, the case, and the plunger. Vibration wear energy usage proper alignment increases reliability. The plunger is a spring loaded part that can be depressed into the case causing the dials needle to move clockwise. Live view supports intuitive measurements and facilitates horizontal and. Instruction manual thank you for purchasing the niigata seiki dial gauge.
Used with a magnetic base or indicator stand, this gauge will show the difference in position from a zero point set at a reference position. Those who purchase new alignment instruments and hand them out to field technicians who lack the knowledge of alignment fundamentals are often. If the front of the tire is closer to the centerline than the rear, the wheel has toein. For those not doing shaft alignment at all, for the longevity and reliability of your equipment, we highly recommend that you start now. Visually check coupling, pipehangers, base bolts, coupling spacing etc. The total travel, or reading capacity, of the indicator commonly ranges from 0. Perform reverse dial indicator alignment, using a graphical alignment chart. With different types of fixtures extended across the coupling, the shafts are rotated to. This video gives a brief overview of how dials can be used to measure shaft alignment, and can even be adjusted to show the true. I found the latest dialguage version is updated on 1052016, which should be updated again to adapt to the.
Alignment of pumps one of the most important parts of pump setup is making sure that the pump and the drive motor are carefully aligned. Dial gauges digital dial gauges, hp dial gauges, o40mm dial. Machine alignment for maintenance personnel in drinking water and wastewater facilities. 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. Place the gauge in front of the tires and align the pointers with the scribe lines. Dial indicator setup alignment gauge setup or tuneup your tools and operations with precision, using this dial gauge this gauge will help you align your mark 7 or mark v work table, rip fence or miter gauge presets for precise cuts, timeaftertime. Laser devices provide higher levels of accuracy and also have automated features that simplify and speed up the work of measuring alignment. 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. On the other end loosen the thumb screws and move the slider until the pointer aligns with the other scribe line.
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