User Manual - Larson Systems Inc.
Contents
1. lightly Mount the centering gage and pin 3 5 3 1 Place the centering gage onto the DSUL Press a 3 8 dowel pin through inside center hole and into the DSUL top plate to locate it 3 5 3 2 Screw the centering pin to the center mounting hole of the upper platform Align the DSUL with the centering pin in the upper platform 3 5 4 1 Lower the upper platform carefully to ensure it is flush with the centering gage then load it to 10 lb of force 3 3 4 2 Loosen the 5 16 hex bolts slightly with a 1 2 wrench 3 5 4 3 Place the indicator in one of the counter bored holes in the centering gage then set the indicator to zero 3 3 4 4 Place the indicator in the opposite counter bored hole NOTE The indicator readings must be within 0 002 TIR 3 5 4 5 If the indicator reading is not within 0 002 TIR move the DSUL until it is 3 5 4 6 Tighten the 5 16 hex bolts Recheck the alignment with the indicator 3 6 Centering Pilot Design 3 6 1 Custom fit the centering pilot to the spring e The outside diameter of the pilot should be within 0 002 of the inside diameter of the spring e The height of the pilot should be 70 of the spring wire diameter 70 of spring wire diameter 3 6 2 Allow for spring burr e If deburring of the spring is not a part of the process then grind a small relief in the side of the centering pilot 0 1 0 5 1 Indicating 4 0 Reading the SUL Mark Mark Mark Blade The SUL fea2. Bring the upper platform down and apply a load the SUL Rotate the Indicating Dial so it is tight If the dial is not reading zero with a 050 Allen EL V Wrench loosen the set screw and rotate the dial x z to the zero reading tighten the set screw aa V Man anan y pil s Sii 5 4 Testing with the SUL You will preform tests in the same way that you would on a standard tester Turn the LED Light on and turn the Indicating dial down all of the way Bring your spring down to the required height and lock the platform in place Turn the Indicat ing Dial until the LED light turns on when the light turns on take the reading LED Light 6 0 Using the SUL on a UT Tester After installation you will have to prepare for the testing You will need to zero the length and the force of the tester You will have to also chose a centering pilot to properly center the spring during testing LSI recom mends that the centering pilot is just smaller than the ID of the spring If there is not a centering pilot that will work for your application contact LSI for a solution 6 1 Initializing the UT Tester With the SUL installed on the UT you can initialize the tester Press the green Start Test button on the UT this will bring the upper platform down and zero the length and force 6 2 Centering pilots Centering of the spring is very important to ensure good test results Select a centering pilot that will work for you spring and install o
3. on a UT Tester After installation you will have to prepare for the testing You will need to zero the length and the force of the tester You will have to also chose a centering pilot to properly center the spring during testing LSI recom mends that the centering pilot is just smaller than the ID of the spring If there is not a centering pilot that will work for your application contact LSI for a solution 10 1 Initializing the UT Tester With the DSUL installed on the UT you can initialize the tester Press the green Start Test button on the UT this will bring the upper platform down and zero the length and force 10 2 Zeroing the DSUL To zero the DSUL lower the upper platform of the tester and apply a load of about 20 of full scale Once the load is applied press the Zero Angle button on the DSUL 11 10 3 Centering Pilots Centering of the spring is very important to ensure good test results Select a centering pilot that will work for your spring and install on both the upper and lower platforms 10 4 Testing with the DSUL You will preform tests in the same way that you would on a standard tester except the pause feature on the UT is reguired When you program your test you will need to add a pause after the test point Load the spring and press the Start Test Button When the tester is paused you can take your Z angle reading or if a printer is hooked up to your DSUL you can press the Send button to print
4. 12 TUL Twist Under Load hu ij E ON Installation To install the TUL simply place the unit on the lower platform with the indicating hash marks facing out and tighten the screw into the lower platform Once installed make sure the TUL is able to twist freely WANA AAA tki l lario States lite Operation Determine if the spring will twist clockwise or counterclockwise If clockwise line up the indicator mark on the right most mark B If counterclockwise line up the indicator mark on the left most mark A This way all 60 degrees are available to be read Select a spring centering pilot that has a snug fit in the spring Load the spring and compress it to the desired length and count the number of marks that pass the indicator Repeat ded bi Indicator Mark Centering Pilots Larson UT considerations Ho PE ska lca 1 5 10 Mark Mark Mark In order to effectively use the TUL on a Larson UT you must have the software Pause option this allows the tester to go to a desired length and pause while you take a reading on the unit Maintenance of your TUL The TUL is a low maintenance device that will occasionally require the addition of a very light oil applied to the ball bearings Too much oil or too heavy an oil will inhibit the operation of the TUL 14 LSZ Larson Systems Inc 10073 Baltimore Street NE Minneapolis MN 55449 4425 www lar
5. Larson 5ystems Inc LSE DSUL SUL TUL User Manual DSUL Digital Squareness Under Load SUL Squareness Under Load TUL Twist Under Load Larson Systems Inc Digital Sguareness Under Load Squareness Under Load amp Iwist Under Load User Manual Larson Systems Inc 763 780 2131 10073 Baltimore Street NE 1 877 780 2131 Minneapolis MN 55449 4425 Fax 763 780 2182 www larsonsystems com info larsonsystems com This manual could contain technical inaccuracies or typographical errors Changes are periodically made to the informa tion herein these changes will be incorporated in new editions of the manual Copyright 2005 Larson Systems Inc All rights reserved No part of this manual may be reproduced by any means without written permission of the author except portions necessary for internal use only by the purchaser of the LSI system Table of Contents Section DSUL Digital Sguareness Under Load SUL Sguareness Under Load 1 0 2 0 3 0 4 0 3 0 6 0 7 0 5 0 9 0 10 0 Introduction Description Installation 3 1 Mounting the DSUL or SUL on a Hand Tester 3 2 Centering the DSUL or SUL on a Hand Tester 3 3 Mounting the DSUL or SUL on a UT Tester 3 3 1 Removing the Safety Shield 3 3 2 Replacing the Upper Platform 3 4 Centering the DSUL or SUL on a UT Tester 3 5 Precision Alignment 3 6 Centering Pilot Design Considerations Reading the SUL Using the SUL on a Hand Tester 5 1 Zeroing the Le
6. change the way the units are displayed Pressing Store will send the test data to the memory Pressing Send will send the test data to a printer if one is hooked up 9 0 Using a DSUL on a Hand Tester After installation you will have to prepare for the testing You will need to zero the length and the force of the tester You will have to also chose a centering pilot to properly center the spring during testing LSI recom mends that the centering pilot is just smaller than the ID of the spring If there is not a centering pilot that will work for your application contact LSI for a solution 9 1 Zeroing the DSUL With the force zeroed lower the upper platform so it makes contact with the DSUL platform Apply a load egual to approximately to 20 of full scale Once you have the load applied press the Zero Angle button on the DSUL Also with the load applied press the zero length button on the hand tester 9 2 Centering Pilots Centering of the spring is very important to ensure good test results Select a centering pilot that will work for your spring and install on both the upper and lower platforms 9 3 Testing with the DSUL You will preform tests in the same way that you would on a standard tester When you bring the spring down to the required height and lock the platform in place Once the platform is locked in place you may take down the Z angle reading or press send if a printer is hooked up to your 10 0 Using the DSUL
7. e proper hole contact Larson Systems When mounting the SUL on a hand tester simply place the unit on the lower platform of tester with the front of the unit facing a direction that allows it to be easily read by the operator and does not interfere with the operation of the tester Using a 3 16 Allen wrench tighten the screw into the lower platform of tester If the upper platform is greater than 2 5 in diameter it must be removed replaced or a platform adapter must be used that does not exceed 2 5 in diameter 3 2 Centering a DSUL or SUL on a Hand Tester Centering the DSUL or SUL 1s very important to ensure proper test results With the unit mounted to the lower platform Insert the centering pin into the platform of the unit Lower the upper platform if the center pin does not go into the platform the centering needs to be adjusted With a allen wrench loosen the three screws that hold the platform on Bring the platform down and move the platform until the centering pin goes into the platform Once the centering pin goes into the platform bring the platform down top the unit and tighten the three screws Centering Pin 3 3 Mounting a DSUL or SUL on a UT Tester 3 3 1 Removing the Safety Shield If your UT 11 or UT 24 is eguipped with the 3 sided safety shield you will have to remove it Using a 1 8 Allen Wrench remove the four screws that hold the shield in place 3 3 2 Replacing the Upper platform The
8. n both the upper and lower platforms 6 3 Zeroing the SUL Indicating Set Indicating Dial Screw Blade The Indicating dial may need to be adjusted Bring the upper platform down and apply a load the SUL Rotate the Indicating Dial so it is tight If the dial 1s not reading zero with a 050 Allen Wrench loosen the set screw and rotate the dial to the zero reading tighten the set screw 6 4 Testing with the SUL You will preform tests in the same way that you would on a standard tester except the pause feature on the UT is required When you program your test you will need to add a pause after the test point Turn the LED Light on and turn the Indicating dial down all of the way Load the spring and press the Start Test Button When the tester is paused turn the Indicating Dial until the LED light turns on when the light turns on you will take you reading 7 0 Replacing the Batteries in your SUL Your SUL is powered with two AAA 1 5 volt batteries To replace the batteries remove the four cap screws with a 3 32 Allen Wrench this will open the side cover Carefully remove the batteries and reinstall new ones 8 0 Basic Operation of the DSUL The DSUL is very easy to use To turn power on press the On Clear button To turn power off press the Option button until you see power displayed then press F2 button Pressing the Zero Angle will zero all of the angle readings Pressing Units will
9. ngth of the Tester 3 2 Centering Pilots 5 3 Zeroing the SUL 3 4 Testing with the SUL Using the SUL on a UT Tester 6 1 Initializing the UT Tester 6 2 Centering Pilots 6 3 Zeroing the SUL 6 4 Testing with the SUL Replacing the Batteries in your SUL Basic Operation of the DSUL Using the DSUL on a Hand Tester 9 1 Zeroing the DSUL 9 2 Centering Pilots 9 3 Testing with the DSUL Using the DSUL on a UT Tester 10 1 Initializing the UT Tester 10 2 Zeroing the DSUL 10 3 Centering Pilots 10 4 Testing with the DSUL TUL Twist Under Load Page 2 12 O O o o O o XE A APAN UAP PP A LU 1 A LU LU SUL Sguareness Under Load re L UMIKA a PI E e da PRI Anne a sli DN DS nf JU z di Li F Larson Ti rm n Mu i i pie EE ni LI 1 0 Introduction Larson Systems Inc has created a solution for measuring the sguareness of a spring with ground ends while in the loaded condition The Larson Sguareness Under Load System is a system that allows the user to measure the composite angle of a compressed spring in degrees 2 0 Description The DSUL and SUL are intended for usage on up to 2 5 diameter OD springs with a load of less than 1 500 Ibs It measures the composite angle in degrees with graduation of 1 degrees with a maximum of 15 degrees 3 0 Installation 3 1 Mounting a DSUL or SUL on a Hand Tester Mounting a DSUL or SUL to the lower platform requires a 5 16 18 hole if your tester does not have th
10. sonsystems com 763 780 2131 1 877 780 2131 Fax 763 780 2182 info larsonsystems com rasna V SA Master 060 1000 0043 00E
11. tures an indicating dial that is graduated in 1 degrees and is numbered for full degrees the half degree mark is slightly longer than the 1 degree marks for visibility The SUL also features an LED Light When you turn the Indicating Ring and the center makes contact the light will turn on The reading is taken at the indicating blade when the light turns It is important that the operator is directly in front of the unit this will ensure the best possible readings Set Screw 5 0 Using the SUL on a Hand Tester After installation you will have to prepare for the testing You will need to zero the length and the force of the tester You will have to also chose a centering pilot to properly center the spring during testing LSI recom mends that the centering pilot is just smaller than the ID of the spring If there is not a centering pilot that will work for your application contact LSI for a solution 5 1 Zeroing the length With the force zeroed lower the upper platform so it makes contact with the SUL platform Apply a load equal to approximately to 20 of full scale Once you have the load applied zero the length 5 2 Centering pilots Centering of the spring 1s very important to ensure good test results Select a centering pilot that will work for your spring and install on both the upper and lower platforms 3 3 Zeroing the SUL Indicating Set Indicating Dial Screw Blade The Indicating dial may need to be adjusted
12. upper platform of the UT 11 and UT 24 is over 2 5 Dia so it needs to be replaced To remove the upper platform simply remove the three cap screws with a 5 32 Allen Wrench Using the three cap screws E mount the replacement platform included with your SUL Leave the platform loose so it can be centered in the next step 3 4 Centering the Upper Platform Centering Lower the upper platform so it touches the unit make sure that you can slide the platform around Insert the zeroing pin into the top of the platform Slide the platform around until the zeroing pin goes into the hole in the platform of the unit Once the zeroing pin is in place tighten the three cap screws with a 5 32 Allen Wrench and remove the zeroing pin 3 5 3 5 1 3 5 2 3 5 3 3 5 4 Precision Alignment Verify parallelism between the lower platform and the 2 5 O adapter 3 5 1 1 Mount the 2 5 adapter to the upper platform 3 5 1 2 Place an indicator and stand on the lower platform and bring the upper platform down to the indicator 3 5 1 3 Rotate the indicator around the lower platform at 90 intervals a mirror may be helpful NOTE The indicator readings must be within 0 001 TIR Mount the DSUL onto the lower platform 3 5 2 1 Mount the DSUL base plate onto the lower platform with either a 5 8 18 or 5 16 18 SHCS socket head cap screw 3 3 2 2 Mount the DSUL onto the base plate using two 5 16 hex bolts and washers Tighten
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