Snap-On UHR Ultra Service Manual Download

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Service Manual

Ultra, UHR Ultra and V3400

WHEEL ALIGNER

May 2014

Summary of Contents for UHR Ultra

Page 1: ...Service Manual Ultra UHR Ultra and V3400 WHEEL ALIGNER May 2014 ...

Page 2: ...idential and proprietary by Snap on Tools Company All manufacturing use reproduc tion and sales rights are reserved by Snap on Tools Company and the information contained herein shall not be used in whole or in part without the express written consent of Snap on Tools Company ...

Page 3: ...5 TARGETS 3D 16 TARGET ACQUISTION 18 3D VISION THEORY 18 PERSPECTIVE 18 FORESHORTENING 20 THE CIRCLE 21 POSITIONING SEQUENCE 23 SIDE TO SIDE DETERMINATION 24 RELATIVE CAMERA POSITIONING RCP 25 THE FIXTURE 25 MODELING THE VEHICLE IN 3 DIMENSIONAL SPACE 27 MEASURING STEERING ANGLES 28 Chapter 3 CHECKOUT CALIBRATION AND MAINTENANCE TROUBLESHOOTING THE SYSTEM 29 CALIBRATION Utilities 30 SYSTEM CONFIGU...

Page 4: ...port Diagostic Files 54 Introduction New for V3400 67 Servicing the V3400 Power Distribution 67 Establishing communications with the cameras 68 Identification of the cameras 69 Checking the Firmware 70 Camera Diagnostics 70 Dropped Camera 71 SERVICING POD Components 72 Replacement of pod components 73 Camera Replacement 73 Replacing the Motor Controller 73 Single Bar Calibration 74 ...

Page 5: ...unplug equipment from electrical outlet when not in use Never use the cord to pull the plug from the outlet Grasp plug and pull to disconnect 5 To reduce the risk of fire do not operate equipment in the vicinity of open containers of flammable liquids gasoline 6 Keep hair loose fitting clothing fingers and all parts of the body away from moving parts 7 Adequate ventilation should be provided when ...

Page 6: ...an example of such test equipment 2 The aligner is susceptible to power line spikes and noise You must connect the equipment to safety ground Does your machine do strange things or exhibit intermittent problems Check for a proper ground at the machine and the power outlet If you re using an extension cord check that too It must be constructed of at least 16 gauge wire and under 50 feet long 3 Sche...

Page 7: ... BE CAREFUL when handling circuit boards Wear an anti static wrist strap 6 WHEN TRANSPORTING circuit boards use anti static bags NOTE Relative humidity has a direct effect on static charge buildup As humidity decreases static buildup usually increases LOCKOUT AND OR TAGOUT SYSTEM PROCEDURE 1 Notify all affected employees that a lockout or tagout system is going to be utilized and the reason thereo...

Page 8: ...he power supply is labeled as V1 and V2 V1 is the 5 volt line and V2 is the 12 volt line Each output voltage has it s own separate ground When measuring the output voltage of the power supply the technician must attach the leads of the VOM to the ap propriate ground to receive back the correct voltage Failure to connect the VOM to the correct pins will result in a incorrect voltage reading and may...

Page 9: ...HUB board s purpose is to pass information to and from each of the camera s directly to one of the USB Ports on the back of the PC The HUB board has 4 USB connectors for either a two camera system or a three camera system The Db9 connector at the bottom of the HUB Board is a direct link to the PC the other 3 connections are equiva lent for the camera s any camera will plug into any of the three ca...

Page 10: ...VDC and 12VDC are present There are no test points available In the figure below all Target Indicators and Directional Indicators are lit up Each of these LED s require 5VDC to light these LED s with the exception of the Strobe ON indicator it uses 12VDC The strobe LED s are infared and appear to be off during the alignment process however this Strobe ON LED indicator was added to the strobe board...

Page 11: ...hicle the Target Indicator LED s will illumi nate green once the targets have been acquired ULTRA UHR Camera Strobe Assembly 3D System The UHR Camera Strobe PCB is all integrated onto one PCB The camera pod is supplied with both 5VDC to power the Acquired target indicators and directional LED s and 12VDC to power the strobe Camera Power Camera USB ...

Page 12: ...image processing is done on the camera directly and sent to the PC as processed information unlike the legacy V3D which used the pc to process all of the images This new process has improved the speed and accuracy of the system The new UHR system is equipped with a 5 mega pixel camera compared to a 1 3 mega pixel of the legacy camera The higher resolution allows us to use a smaller target compared...

Page 13: ...11 AC DC POWER DISTRIBUTION ...

Page 14: ...12 AC DC POWER DISTRIBUTION ...

Page 15: ...ed the versatility of added features plus it also opened up the area of using a higher resolution camera system Ultra High Resolution UHR The UHR system also incorporates a true 3D target This target is much smaller and lighter CAMERAS The eyes of the vision based 3D Aligner are the two cameras mounted on either end of a camera beam The cameras are high resolution CCD video type operating in gray ...

Page 16: ...14 Theory of Operation Figure 2 Top Field of View Figure1 Side Field of View ...

Page 17: ...e The dot pattern created allows the cameras to see a very unique item that the 3D Aligner recognizes The various dimensions of this pattern of dots is a known quantity that is stored within the program and is used as a constant forming the basis of our vision based measuring system There are 33 dots on each front target and 31 on rear targets laid out in a very distinct manner A great deal of tim...

Page 18: ...gets from the set is a back and which is a front target From the target assembly the back target on each wheel is the Master target Locate the dot on each master target and you will notice that the dot on the front target is turned either 90º CW or 90º CCW from the Master target Each target contains a total of 13 fids 5 large and 8 small this brings the target set to a total of 26 fids No more tha...

Page 19: ...17 Theory of Operation Configuration using single pole wheel clamp ...

Page 20: ... dots and inter pret them as wheel alignment angles PERSPECTIVE One of the things the 3D Aligner must determine is how far away each target is from the cameras at any given moment As everyone knows objects appear to get smaller as the move farther away even though their actual size remains the same If you look at a screwdriver 2 feet away from you it looks much larger than it does at 20 feet away ...

Page 21: ... r we can calculate D we now know the distance the pen is from the camera Applying this to the 3D Aligner the image analysis software takes each image and precisely measures the size of each dot on the photograph this is the perceived size A We already discussed the known values of focal length F and size of the dots P Thus using the above math the 3D Aligner can measure the distance from the came...

Page 22: ...k what happens to the observed size of the screwdriver when it is rotated away from 90 degrees to your eye it appears smaller The observed size of the screwdriver becomes shorter The more it is rotated the smaller it appears to be This effect is called foreshortening As before if you know the actual size of the screwdriver is 6 inches by measuring the observed size and applying mathematics it is p...

Page 23: ...meras and at varying angles or orientation at any given moment An observer to the above may ask how can the aligner tell the difference between the effects of perspective and foreshortening All it knows is the targets images are smaller than their actual size What about orientation changes in 3 dimen sions The answer is a powerful geometric shape the circle As you will find out the circle was chos...

Page 24: ... diameters in the other dimensions that are 90 degrees to the true diameter to find the short axis and determines the angle of orientation away from normal with foreshortening Using these methods it determines where the target dot is in three dimensional space with respect to the camera both distance and orientation It is the circle s unique characteristics that allow the aligner to distinguish be...

Page 25: ...itioning In positioning we rotate the wheel tire target by rolling the vehicle As the vehicle moves the cameras track the location and orientation of the target dots If the wheel went through a complete 360 degree rotation each dot would scribe a circle as illustrated in the picture below If we took our scribed circle and determined where the center of that circle was located we would find the spi...

Page 26: ...see the rear targets the front targets are smaller allowing easier viewing of the rear Each camera can see a front and rear target on its side of the vehicle and thus determine their locations and orientations and find the two spindles on that side However each camera cannot see the targets on the other side of the vehicle When determining alignment angles such as thrust angle and setback it is ne...

Page 27: ...form RCP and can also used for camera aiming It is easy to use the clamp and target assemblies placed on the runway to aim cameras It must be clear that RCP is performed at the factory and is not required unless a camera is replaced or moved The fixture consists essentially of a bar about 5 5 feet in length with a target attached on each end a front and rear Stands are used to place it on the alig...

Page 28: ...sides of a trapezoid and through applica tion of mathematics we can determine the fourth RCP We also recheck our calculations several times by placing the fixture back on the runways at different points before proceeding The RCP procedure establishes the missing dimension that allows side to side determination each cam era s position with respect to each other The accuracy of this calculation is h...

Page 29: ...he accuracy of the RCP can be affected is if one camera moves with respect to the other not likely to happen in every day usage MODELING THE VEHICLE IN 3 DIMENSIONAL SPACE After Positioning is completed and the program is able to relate one side of the vehicle to the other the soft ware knows 4 distinct points that create a plane in space that are part of the vehicle It takes these points and crea...

Page 30: ...he steering axis directly in 3 dimensional space in the same way it found the vehi cle s spindles We locate the axis by putting our targets in motion about the axis by turning the wheels First we turn one direction 10 to 13 degrees The software monitors the movement of the target dots which scribe an arc The program finds the center of each of the 33 arcs averages and knows where the steering axis...

Page 31: ...ailure should be included with it Failure to follow this procedure may result in a failed part getting returned to the field un fixed Every Technician should keep a notebook with descriptions of errors and fixes he has encountered on the aligner It s easier to repair future problems based on known good experiences instead of guessing what was done the last time this problem was seen Always have cu...

Page 32: ...d only be done by a qualified technician SYSTEM CONFIGURATION Utilities used to configure the systems camera configuration TID Utilities used for performing Target Identification for the different types of clamps avail able to the end user including Standard Clamps AC200 AC400 AC900 and others CAMERA VIEW Live camera view This utility is very useful for determining proper camera operation RELATIVE...

Page 33: ...ATION WILL RESULT IN IN ACCURATE ALIGNMENT RESULTS 1 From the calibration menu click on the System Configuration icon 2 Select the proper Imaging System Type Two Camera System Three Camera System Two Cameras with remote camera Three Cameras with remote camera After selecting the correct camera configuration the each of the camera must be identified By clicking on Camera Identification icon a displ...

Page 34: ...remote camera is present it will also need to be identified Use the pointing device click on the illustrated camera beam that matches the camera beam that is being serviced After selecting the correct illustration the illuminated directional arrows should swap from one camera to the other Again using the pointing device click on the camera beam that matches the beam being worked on After all camer...

Page 35: ...ystem is selected the user is given additional selection buttons Each of these buttons should be turned on the utilize the pod motors on the Arago system If the auto search mode is not working the user should check to ensure of these are on NOTE V3400 systems do not required this function After enabling the pod motors the user must calibrate them Using a tape measure determine the distance from th...

Page 36: ...nu single click on the Pod Rotation icon 2 Adjust the camera lever s to the illustrated position shown on the screen and click on Next 3 After clicking on Next as indicated in step 2 the cam era rotation levers change positions Move the cam era levers to the position shown and click on Next 4 Continue the process until all camera positions have been checked After the final rotation lever has been ...

Page 37: ...e clamps and target come standard with the Arago aligner while the AC400 is standard on the Audit aligner and the V3400 TARGET ID PROCESS note Before performing a tid the operator must clean the targets with glass cleaner and a lint free cloth this is a very crucial pro cedure only 1 target must be in the camera field of view during this procedure 1 Click on any of the target ID icons to begin the...

Page 38: ...nter of the wheel Hold the wheel steady as the aligner will take a reading 7 After the readings have been taken the screen instructs with arrows indicating to rotate the wheel and target back 90º This 90 degrees is from the first 25º forward rotate the tire back until a stop sign appears as in step 6 and hold the wheel steady as another reading will be taken 8 After the readings are taken the arro...

Page 39: ...n the OK button and select the next target Lower the wheels after all four targets have been ID d 10 The program returns to the Target Selection screen to allow ad ditional targets to be ID d Repeat this process for all targets A green check mark appears next to the targets that have been ID d Camera View See the Diagnostic Chapter for details using Camera View RCP Fixture Assembly ...

Page 40: ...id RCP has been performed The unit is shipped from the factory with valid RCP factors and it is not necessary to perform RCP unless a Camera is exchanged or RCP has been lost such as a crashed hard drive with no back up Tools needed Fixed Length Target Fixture with two targets 1 Raise the empty lift to working height no vehicle Close the garage door to block any stray daylight 2 Prepare the Calibr...

Page 41: ...s Notice the progress bar in the lower right hand corner 10 After a period of time a message is dis played to raise the plunger on the double leg bracket This will cause the images to rotate on the screen Click on NEXT when prompted 11 Retract the 1 5 plunger Place the cal bar with the small target on the right rail the large target on the left rail with the feet cen tered front to rear on the tur...

Page 42: ...ck on NEXT when done 14 Move the cal bar back again to the front turn tables Place the small target on the right rail and the large target on the left rail Cen ter the feet front to rear Click on NEXT when done 15 Place the cal bar on the left rail with the small target in the center of the front table and the large towards the rear outside of the rail Click on NEXT when done ...

Page 43: ...ick on Ride Height Target Calibration icon to begin the calibration process 2 Locate the Ride Height Calibration fixture and place the fixture on one of the lift runways so the straight edge is toward the camera 3 Select the side of the rack you are to calibrate from 4 Place the tip of the target pointer into the hole in the base of the calibration fixture NOTE The pointer tip must remain in the h...

Page 44: ...prompting the user to proceed to step 2 7 Proceed with calibration until all three steps have been completed 8 Should calibration of the ride height target fail a warning dialogue box will pop up and the user must begin the process from the beginning After the process completes the 3rd step the software auto advance to the main menu ...

Page 45: ...s the user to quickly restore the alignment sys tem s calibration after the operating system has been restored It is recommended that each time the system is backed up the user date the flash drive This ensures that the most current data backup be restored Insert the flash drive into one of the open USB ports on the PC Click on the FIND button to point to the flash drive and click on OK After the ...

Page 46: ...44 NOTES ...

Page 47: ...portant that you check to make sure the cor rect wheel clamps are selected in the Preference Menu It is possible that a user could inadvertantly change the wheel clamp type not knowing the consequences This could cause the service technician to improperly troubleshoot and diagnose a problem Having the incorrect wheel clamp may be the problem 1 From the Main Menu select the Preference Icon 2 Select...

Page 48: ...mly NOTE EACH TIME CTRL ALT P IS PRESSED IT WILL OVERWRITE THE PREVIOUS STORED IMAG ES IF TARGETS ARE NOT AVAILABLE IN THE CAMERA VIEW THERE WILL BE NO IMAGES TO LOOK AT USING THIS FUNCTION Allows you to view individual pixel intensity levels Moving the cursor over the image display the pixel value intensity of the cursor location is displayed in red The brighter the cursor location the higher the...

Page 49: ... non coplanar racks can introduce some error to our system If the lag between rails is less then 0 02 inches 0 5 mm the rack is considered to be coplanar If the lag is greater then 0 02 inches and less then 0 3 inches we display the value but leave it up to the individual shop to decide what to do Although this will not cause a great deal of problems is will affect the alignment readings a small a...

Page 50: ...entified The number in parenthesis is the number of potential dots Distance Distance from the camera to the respective target in inches Target Angle Angle of target Intensity The amount of light sent back from the target Minimum 100 Goal 160 Maximum 220 Error RTP Vector Flag Status of the V3D target and wheel clamp Vector reflects type of clamp being used Error RTP Relative Target Position 9 Good ...

Page 51: ... the camera has acquired The user can quickly jump to each targets information by clicking on the target identification icon This screen will display warning indications if any of the following criteria have been exceeded or if a target is not visible Target angle greater than 48 degrees Distance to front target greater than 160 inches 4 064 meters Distance to rear target greater than 240 inches 6...

Page 52: ...e techni cian can compare camera characteristics Both the Left and the Right camera should run parrallel information Temperature V3 3 Vaa Vdd Vio Software Version Camera Software Version DSP Clicking the Back button will exit this test 3D Target Calibration Target rtp ...

Page 53: ...ion on both the targets however since the entire RR target assembly has been rotated 180º the system assumes that the taget has been placed on the wheel upside down If TID had been done with the target upside down the numbers displayed on this screen above will be way different than the other targets This is useful to know so that when a user is performing a TID on a set of targets and there happe...

Page 54: ...also use the CTRL ALT P function to capture im ages and live data for export purposes This screen displays a count of the re ceived images over each sides display If one camera is sending a lot less im ages than another 15 this may be an indication of a camera problem However in V3400 systems the cameras can be turned on individually By clicking on the camera diagnostic icon on the toolbar the use...

Page 55: ...ze images with gain and strobe changes All adjust ment from this location are manual adjust ments when exiting this test the camera assembly will return to auto function Running the Strobe to full strength should over expose the targets in the field of view The user can easily switch from left to right ...

Page 56: ...when starting a new alignment Any data collected will over write previously collected data Export Diagnostic Files The diagnostic file export icon allows the technician to easily export all potential diagnostic information to a jump drive The original location for this information is lo cated in the root directory of Thundercloud Insert the jump drive into an open USB port Click on the drive locat...

Page 57: ...t has been added Additional Hardware that may have been added 3 Is the condition repeatable If yes what sequence makes the condition occur 4 Where is the machine located in the shop 5 Distance from cameras to Turn plate centerline and distance between the camera pods Is the unit within the proscribed installation parameter 6 What type of equipment is used near it Possible interference 7 Check came...

Page 58: ... Preference menu 4 The Main Preference screen has 3 option tabs CSR Prefer ences TID Preferences and Parameters Radio buttons are provided for changing from factory defaults Parameter Group Standard OEM Show CSR Edited Allow Positioning Wobble Default checked Allows the operator to by pass Wheel Wobble if box is unchecked the op erator must redo and pass wheel position ing on all 4 wheels Allow Ca...

Page 59: ...Stability Tolerance Default 10 Distance Measurement Measures the height of the target and must be constant to acquire a target Angular Stability Tolerance Default 05 Angle of the target Measures the width of the target and must be constant to acquire a target Positioning Angle Default 40 How many degrees the target must rollback before acquiring a reading Positioning Angle Tolerance Default 10 Min...

Page 60: ... bottom and click on the to view all of the active devices USB BASICS USB controllers are known as root hubs They re integrated on the motherboard in most computers Current moth erboards typically have between two and six root hubs each with at least two headers for connecting ports Older computers may only have one hub on the motherboard or a PC may have an add on PCI or EISA controller card that...

Page 61: ...ver problem but it could be a power or bandwidth issue Controller hub compatibility USB computers manufactured before 2002 are limited to USB 1 1 devices USB 2 0 is much faster and is usually backward compatible with the older 1 1 but it s possible that a USB 2 0 device could refuse to work on a USB 1 1 controller or external hub so check to see if there s a compatibility issue Assuming a firmware...

Page 62: ...ts are located anywhere else on the back of the computer you re probably dealing with a USB add on card Front mounted USB ports can be either type You may have to open the PC case and visually inspect the USB ports to see whether they con nect directly to the motherboard or to an add on card Scenario All devices occasionally stop working at the same time Possible causes Power management configurat...

Page 63: ...dth As you would with any other sporadic hardware conflict try to isolate the particular event that s common to all failures The system may be experiencing a sporadic controller failure if your devices are split across root hubs Try moving the devices to another root hub to see if the problem is in a particular root hub or in the devices themselves Remove external hubs from the equation to see if ...

Page 64: ...nstalled If not this update can be found on Mi crosofts website 5 Click DEVICE MANAGER 6 Double click to expand the UNIVERSAL SERIAL BUS CONTROLLERS branch 7 Right click USB ROOT HUB 8 Click PROPERTIES 9 Click POWER MANAGEMENT 10 De select the ALLOW THE COMPUTER TO TURN OFF THIS DEVICE TO SAVE POWER check box Repeat Steps 5 8 for each USB ROOT HUB 11 Click OK 12 Close DEVICE MANAGER ...

Page 65: ... runs on the periph eral The more advanced the device the more likely it is that the firmware can be upgraded Mice being simple devices don t require firmware upgrades Scanners hard disks printers optical disks and other sophisticated peripherals likely have upgradeable firmware Check the manufacturer s site to ensure you ve loaded the most recent update Bandwidth USB root hubs can each support up...

Page 66: ... Click Start 2 Right Click Computer 3 Left Click Manage 4 Left Click Services and Applications 5 Double Click Services 6 Double Click Windows Presentation Foundation Font Cache 3 0 0 0 7 Change Startup Type to Disabled 8 Click Apply 9 Click Ok 10 Exit Services and reboot system ...

Page 67: ...65 Diagnostics ...

Page 68: ...66 NOTES ...

Page 69: ...at boot up will only take a few seconds Pods may take several minutes to connect but navigation is possible Servicing the V3400 Power Distribution Power for the camera tower is 115 230 volts AC 50 60hz 15 amp service A Fused AC receptacle is supplied at the rear of each tower base A universal DC power supply is located inside the box which supplies each camera assembly with 19 32 volts DC Camera b...

Page 70: ...era pod to right camera pod position As soon as the software invokes a command that requires the cameras to see a target the pods go to the search mode This search mode is much faster and smoother than past models and will not stop and go as much As in all other Pro42 variants the operation of the software is pretty much the same and little has changed However with the new cameras and targets we m...

Page 71: ...camera ID labels or numbers in a secure loca tion such as inside the aligner console Automatic camera ID invokes the Blue Tooth to search all available devices that are in range If a camera is con nected to another system the camera search feature will ignore that camera If a camera is turned on and not currently connected to a system then its ID number will be displayed Once all available devices...

Page 72: ... the left carrousel bar Then select Check Firmware located at the bottom of the carrousel When invoked the system checks the revision level of the cameras and controller firmware and compares to the currently loaded Pro42 version If there are updates available it will be indicated by a green arrow The green check mark indicates version is good A red X indicated a loss of communications Note Multip...

Page 73: ... working on the camera s dis played If both cameras on the left side disconnected the power would be suspect however if only one camera is shown to be disconnected then look for an obstruction or other issues The power source indicator will be displayed with a green check if any one of the two are connected If the pods are not level it is possible to force a calibration of pod level by going into ...

Page 74: ...moved The outside pod cover is removed to allow access to the motor controller board The cover to the inside or facing the cam targ pod is removed to allow access to the calibration camera The front cover is removed for serving the measurement camera Removal of the front camera cover is eased a small amount if one of the side covers is removed first If pod covers are removed make sure the coiled c...

Page 75: ... near the center of the board Replace with service board in the reverse order followed by per forming RCP Replacing the Motor Controller Remove the outside pod cover Disconnect control and power cables from the board To remove the Motor Controller Board use a long shank phillips screwdriver to access the four screws securing the board to the pod chassis Re install service board in the reverse orde...

Page 76: ...the Single Bar Calibration The RCP procedure has not changed and will still require the previous RCP fixture Always backup any calibration data to a flash drive prior to replacing calibration data Select Preferences from the main carousel then System configuration and insure correct clamps and tar gets are selected The calibration bar and Adapter is the standard Calibration Bar and Stands that hav...

Page 77: ... See Below This pro cedure must be done using all wheel clamps on site as each set of clamps has it s own calibration factors AC100 200 700 AC400 Note if the AC400 wheel clamps are being used it will be necessary to remove the CLAMP ARMS From the wheel clamp assembly the center locking location hole will be used to mount the wheel clamp and target assembly to the calibration paddle Wheel Clamp Pad...

Page 78: ...The wheel clamp and tar get assembly must be mounted vertical before continuing This initial reading is recording the RTP data and marks vertical for all alignments 10 Press the Next icon to con tinue 8 Place the calibration bar and stands in front of the turnplates if possible and mount the paddle assembly to the bar ...

Page 79: ...tate the calibration bar back and lock it using one of the locking knobs on the stands until the stop sign appears 13 Rotate the calibration bar forward and lock it using one of the locking knobs on the stands until a stop sign appears NOTE If a target is blocked at anytime during the single bar calibration procedure a blocked target sign will ap pear as shown in the illustra tion Also note that i...

Page 80: ... and lock it using one of the locking knobs on the stands until a stop sign appears 16 Rotate the bar back and lock it using one of the locking knobs on the stands until a stop sign appears 17 Continue each rotation process to complete the front target calibration 18 Repeat steps 11 through 15 with the rear targets mounted on the bar in front of the turnplates ...

Page 81: ...ompt the user to move the bar and stand assembly to the rear of the alignment rack Again make sure that the bar and stands are on a solid surface The rear slip plates must be pinned Press the Next button to continue 20 Rotate the bar forward and lock it using one of the locking knobs on the stands until a stop sign appears ...

Page 82: ... locking knobs on the stands until a stop sign appears 23 Repeat steps 20 thru 21 24 After a successful calibration a completion flag should appear 25 Depending on the wheel clamp and target being calibrated the necessary calibration files will be updated with the new values 26 Using a vehicle with known alignment angles verify the alignment system before returning it to service 27 Calibration Com...

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Page 84: ...05 07 2014 2014 Impreso en U S A 309 Exchange Avenue Conway AR 72032 TEEWA546P4 Rev C ...

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