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Tycos 509 Wall and Mobile Aneroid

1. 27 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish the calibration of the Classic Hand Gauge 28 Remove the test pointer and test dial Replace the gauge s dial Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 35 Section 3 Repair and Calibration 29 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Ensure that it is resting in the center of the oval Gently tap the pointer with small hammer to secure or use 1112697 pointer assembly tool 30 Place the crystal and bezel back onto the gauge and test the gauge 31 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy 36 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Economy Aneroid Gauge Stopped production on 7 15 03 Note Before performing calibration a Check the clip for correct tension Replace before calibration
2. Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 37 Section 3 Repair and Calibration 14 Using your left index finger push the sector gear all the way to the post and hold it in that position 15 Place the tension setting tool 1119628 onto the pinion at the 9 o clock position 16 Rotate the tool clock wise to the 5 o clock position 17 Release the sector gear and continue rotation to the 9 o clock position The sector gear should be moving during this step 18 Bring the lug back to the correct position and lock it into place Setting the span of the Economy Gauge 19 Place the test dial 1110657 onto the gauge Place the test pointer onto the pinion Rotate the dial until the pointer is at 0 the bottom of the gauge 20 Apply 320 mmHg of pressure to the gauge 21 Bleed the pressure down to 300 mmHg 22 If the pointer is pointing to less than 300 place the calibration tool T106845A into the radius plate slot above screw Rotate the calibration tool counter clock wise towards the bottom of the gauge until the sector gear pointer reaches 300 Release the pressure to 0 mmHg and check at the 0 point 23 If the pointer is pointing to greater than 300 position the calibration tool T106845A between the sector gear and the radius plate Rotate the tool clock wise until the pointer is at 300 this brings the radius plate down Release the pressure to 0 mmHg and check the 0 point 2
3. 3 Remove the bezel by unscrewing it from the case Remove the crystal 4 Remove the pointer by using the pointer removal tool T18814 5 Pry out the dial by using a small flat head screwdriver 6 The pocket end cap cannot be removed 7 Remove the movement using T18904 Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench T18904 using adapter T18891 Calibration of the Classic Pocket Gauge 8 Connect the gauge to the test equipment 9 Place the gauge in to the pocket fixture 174555 10 Remove the bezel crystal pointer and dial Checking the Classic Pocket Gauge Span 11 Place the test dial T18781 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 12 Apply 320 mmHg to the gauge 13 Release the pressure to 300 mmHg 14 Observe the position of the pointer If the pointer does not align with the 300 go to Average Zero Starting Position 16 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 15 If the pointer does align with 300 go to Linearity Adjustment of the Classic Pocket Aneroid Average Zero Starting Position 16 Apply 60 mmHg of pressure to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 17 Apply a 20 mmHg of vacuum to the gauge Release the pressure to zero Mentally note where the t
4. 5 Pry out the dial by using a small flat head screwdriver 6 Remove the cover of the hand gauge by unscrewing the two cover screws with a phillips head screwdriver 7 Loosen the locking nut from the capsule Remove both from the case 8 Remove the movement screws from the case Remove the movement from the case 9 Remove the thumbscrew using tool 1113265 thumbscrew wrench Turn the thumbscrew counter clockwise to remove 10 Remove the thumbscrew valve body using a 5 8 socket Note Reassemble in reverse order Calibration of the Classic Hand Gauge 11 Connect the gauge to the test equipment 12 Ensure that the valve of the gauge is closed Place the gauge in to fixture 1107569 13 Increase the pressure to 250 mmHg Allow the pressure to stabilize for 15 seconds Check for a leak 14 Remove the bezel crystal pointer and dial Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 29 Section 3 Repair and Calibration Aligning the Sector Gear on the Classic Hand Gauge 15 Tighten all screws 16 View the sector gear and ensure proper position The sector gear is in the proper position when the right edge of the sector gear is aligned with the mark on the base of the movement 17 If the sector gear not aligned properly remove the two cover screws Loosen the capsule nut using a 3 8 wrench Adjust the sector gear using a 5 16 wrench Turn the capsule sector gear until is in the correct positio
5. b Ensure the lock nut is tight c Check the hair spring Ensure that the hair spring is uniform and not distorted d Check the pinion Ensure that it rotates correctly and is not bent Replacing Parts of the Economy Gauge 1 Remove the two screws from the back of the case using a phillips head screwdriver 2 Remove the Economy cover and the crystal 3 Remove the pointer using the pointer removal tool T18814 4 Pry the dial from the case using a small flat head screwdriver 5 Remove the movement from the case using 1108897 6 Loosen the screw from the case using T105258 and remove the capsule Note Reassemble in reverse order Use 3M Plastic Adhesive 1099 to secure the dial onto the case Calibration of the Economy Gauge 7 Connect the gauge to the test equipment 8 Place the gauge in to fixture T108212 9 Remove the bezel crystal pointer and dial Aligning the Sector Gear of the Economy Gauge 10 Tighten all screws 11 View the sector gear and ensure it is in the proper position The right edge of sector gear should align with the mark on base of the movement 12 If the sector gear not aligned properly loosen the capsule nut using wrench T105258 Adjust the sector gear by turning the capsule until sector gear is in correct position per step 11 Tighten the capsule nut Setting the tension of the Economy Gauge 13 Loosen the sector stop lug with T112772 and pull it towards the bottom of the gauge
6. 0 mmHg and check the 0 point 30 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 29 If the pointer is not at 0 upon the release of pressure rotate the test dial until the pointer is on the 0 mark of test dial Repeat steps 25 28 until the span is set Check and finish calibration of the Classic Hand Gauge 30 Remove the test pointer and test dial Replace the gauge s dial 31 Apply a small amount of red Loctite 266 to the hub of the pointer Place the pointer onto the pinion and ensure it is resting in center of oval 0 Gently tap the pointer with a small hammer to secure 32 If the pointer is to the left of the oval square s center rotate the pointer counter clockwise until you feel a slight resistance Release the pointer Ensure the pointer returns to the center of the oval square 0 Repeat until correct 33 If the pointer is to the right of the oval square s center rotate the pointer clockwise until a slight resistance is felt Release the pointer Ensure the pointer returns to the center of the oval square 0 each time Repeat until correct 34 Place the crystal and bezel back onto the gauge and check Testing of the Classic Hand Gauge 35 Connect the hand gauge to the test equipment 36 Apply 320 mmHg of pressure to the gauge 37 Release the pressure to 300 mmHg 38 Compare the reading of the gauge to that of the calibrated digital pressure me
7. 5 Lift the calibration tool up to the point where the pin makes contact with the gear sector and bend the pin up approximately 30 degrees Approximately 15 degrees EE 30 degrees FIRST BEND end BEND BEND BELOW GEAR SECTOR 050 lt q Cross Shaft A Hook Figure 3 5 S amp K pin adjustment if reading is high at 250 mmHg 26 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 26 Remove the tool and release the gear sector The resultant bend should result in the gear sector starting position being a max of 2 teeth extending beyond the top plate when viewed from a top position and a minimum of 2 teeth within the edge of the top plate This must be checked by pushing the gear sector 2 teeth from the other side of the top plate Adjust the secondary bend if the gear sector is out of these limits Re assemble the test dial and test pointer Recheck span and adjust as necessary prior to inspecting the intermediate points Low Readings of the Wall Mobile Aneroid at 60 or 100 27 Remove the test pointer and test dial Position the calibration tool over the adjusting pin and push it down to the cross shaft Lift the tool approximately 1 16 inch and bend the pin approximately 15 degrees See Figure 3 6 While maintaining this position lift the tool to point where the pin makes contact with the gear sector Bend the pin down 30 degrees Remove the tool and release the gear sector Check fo
8. Aneroid NEEN 33 Linearity Adjustment of the Classic Hand Aneroid As required sss sss 34 Check and finish the calibration of the Classic Hand Gauge sss 35 Economy Aneroid Gauge Stopped production on 7 15 03 sees 37 Replacing Parts of the Economy Gace AA ASAS 37 Calibration of the Economy Gage sireenin aE E aia aR outa se URN ear 37 Aligning the Sector Gear of the Economy Gauge sees eee eee 37 Setting the tension of the Economy Gauge esse eee eee 37 Setting the span of the Economy Gauge sese esse eee 38 Check and finish calibration of the Economy Gauge esse e eee eee 38 Testing of the Economy Gauge 39 TR 1 Silyer Ring Hand Aner id WEE 40 Replacing Parts of the Silver TEE 40 Calibration of the Silver Ring Hand Aneroid sia Ri AAA dan ects 40 Checking the Silver Ring Gauge Span esse eee eee 40 Average Zero Starting Position aia a id Eelere eege 41 Span Adjustment of the Silver Ring Aneroid sss sese 41 iv Welch Allyn Aneroid Sphygmomanometers 95P504 Rev D Table of Contents Linearity Adjustment of the Silver Ring Aneroid As required sss sese 41 Check and finish the calibration of the Silver Ring Gauge sse ee eee 43 TR 2 Pro Check Hand Aneroid asii ncaa Miata a eee ia acetate 44 Replacing Parts on Pro Check Hand Aneroid o y A I Y 44 Calibration of the Pro Check Hand Anerold aa 44 Checking the Pro Check Hand Gauge Span esse sees ee de deene dE Age 44 INNET AGE Zero EEN E 44 Span Adjustment of the Pro Check Hand Aneroid sss sss 45 Lin
9. Classic Pocket Aneroid Wall Aneroid Series 509 Wall Aneroid Series 767 TR1 Silver Ring and TR2 ProCheck aneroids The S amp K movement looks similar to Figure 1 1 Please familiarize yourself with the different parts of the S amp KK movement Sector Gear Pinion Adjustment Pin Cross Shaft Figure 1 1 New style S amp K Movement Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 5 Section 1 General Information Old Style Movements Welch Allyn still supports the Older Style Classic Hand Aneroid Classic Pocket Aneroid Wall Aneroid Series 509 and Wall Aneroid Series 767 The Older movements look similar to Figure 1 2 BOTTOM PLATE AND BEARING PLATE TapTite ASSEMBLY Screw TOP PLATE w AND JEWELS ASSEMBLY JEWEL VERSION L Y Pinion Hair Bie Spring G Se ARBOR AND GEAR SECTOR ASSY Top Plate Bottom Plate Radius Plate And Push Rod Assembly Sector Alignment K s Mark Screw amp S EN Ur Stop Lug Washer E Leaf Spring Figure 1 2 Old style aneroid movement 6 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D General Information Section 1 Table 1 1 Aneroid warranty table Model Model No Description Warranty Comments Classic Hand Aneroid 5098 06 w Infant Cuff Lifetime Replace w S amp K Assy 5098 05 w Adult Cuff Life
10. Figure 3 12 While maintaining this position lift the tool to point where the pin makes contact with the gear sector Bend the pin down 30 degrees Remove the tool and release the gear sector Check for gear sector starting position as defined previously Adjust if necessary Re assemble the test dial and test pointer Recheck the span and adjust as necessary prior to inspection at the intermediate points 42 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Approximately 15 degrees Approximately 30 degrees FIRST Ga BEND ETN 2nd BEND BEND TAGENT OR SLIGHTLY BELOW RADIUS Figure 3 12 S amp K pin adjustment if reading is low at 60 100 mmHg Note In all adjustments during calibration the gear sector starting position will affect accuracy Sometimes this alone can be used as an individual adjustment to achieve conformance Higher readings will be realized when the gear sector is extending beyond the edge of the top plate and lower readings will be realized when it is within the edge of the top plate 27 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish the calibration of the Silver Ring Gauge 28 Remove the test pointer and test dial Replace the gauge s dial 29 Apply a small amount of red Loctite 266 to the hub of the pointer Place the g
11. Gauge Span 13 Place the test dial 118833 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 24 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 14 Apply 320 mmHg to the Gauge 15 Release the pressure to 300 mmHg 16 Observe the position of the pointer If the pointer does not align with the 300 go to Average Zero Starting Position 17 If the pointer does align with 300 go to Linearity Adjustment of the Wall Mobile Aneroid Average Zero Starting Position 18 Apply 60 mmHg of pressure to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 19 Apply a 20 mmHg of vacuum to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 20 Take the average of where the pointer was between step 18 and step 19 Rotate the test dial s zero mark to that averaged position Span Adjustment of the Wall Aneroid 21 Apply 320 mmHg of pressure to the gage to then bleed down to 300 mmHg Mentally note position and maintain pressure 22 If the span is too low using calibration tool 118816 bend the adjustment pin away from pinion parallel to gear sector arm Change pressure to 0 mmHg Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then
12. edge of the top plate 27 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish the calibration of the Classic Pocket Gauge 28 Remove the test pointer and test dial Replace the gauge s dial 29 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Ensure that it is resting in the center of the oval Gently tap the pointer with small hammer to secure or use T19034 pointer assembly tool 30 Place the crystal and bezel back onto the gauge and test the gauge Testing the Classic Pocket Gauge 31 Connect the Pocket Gauge to the test equipment 32 Apply 320 mmHg to the gauges 33 Release the pressure to 300 mmHg Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 19 Section 3 Repair and Calibration Note The aneroid or mercury gauge must be accurate to 3 mmHg at the stated target pressures Use a calibrated digital pressure meter 34 Compare the reading of the calibrated digital pressure meter to that of the Pocket Gauge under test 35 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmH
13. either too high or too low perform the following adjustments High Readings of the Classic Pocket Aneroid Predominantly at 250 and 200 23 Remove the test pointer and test dial Position the calibration tool 118816 over the adjusting pin and push it down to the cross shaft Note You may have to move the gear sector with your finger of other hand to allow the calibration tool to slide down to the cross shaft 24 Move the hook away from the diaphragm approximately 15 degrees by pushing on the sector gear While maintaining this position lift the tool up from cross shaft approximately 1 16 inch and bend the pin back approximately 15 degrees See Figure 3 2 Lift the calibration tool up to the point where the pin makes contact with the gear sector and bend the pin up approximately 30 degrees A i l Approximately 15 degrees Dpromimately AU degres FIRST BEND 2nd BEND BEND BELOW GEAR SECTOR OSO lt q Cross Shaft Y Hook Figure 3 2 S amp K pin adjustment if reading is high at 250 mmHg 25 Remove the tool and release the gear sector The resultant bend should result in the gear sector starting position being a maximum of 2 teeth extending beyond the top plate when viewed from a top position and a minimum of 2 teeth within the edge of the top plate This must be checked by pushing the gear sector 2 teeth from the other side of the top plate Adjust the secondary bend if the gear sector is out of these limits Re assem
14. gear and the radius plate Rotate the tool clockwise until the pointer is at 300 this brings the radius plate down Release the pressure to 0 mmHg and check the 0 point 26 If the pointer is not at 0 upon full release of pressure rotate the test dial until the test pointer is on the 0 mark of test dial Repeat steps 22 25 until span is set 27 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish the calibration of the Classic Pocket Gauge 28 Remove the test pointer and test dial Replace the gauge s dial 29 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Ensure that it is resting in the center of the oval square Gently tap the pointer with a small hammer to secure 14 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 30 If the pointer is to the left of the oval square s center rotate the pointer counter clockwise until you feel a slight resistance Release the pointer Ensure that the pointer returns to the center of the oval square 0 Repeat until correct 31 If the pointer is to the right of the oval square s center rotate the pointer clockwise until a slight resistance is felt Release the pointer Ensure that the pointer returns to the center of the oval square 0 e
15. pointer is resting in center of oval 0 Tap the pointer with small hammer slightly to secure 30 If the pointer is to the left of the oval square s center rotate the pointer counter clockwise until you feel a slight resistance Release the pointer Ensure the pointer returns to the center of the oval square 0 Repeat until correct 31 If the pointer is to the right of the oval square s center rotate the pointer clockwise until a slight resistance is felt Release the pointer Ensure the pointer returns to the center of the oval square 0 each time Repeat until correct 32 Place the crystal and perform a full test Testing of the Wall and Mobile Aneroid 33 Connect the Wall or Mobile Gauge to the test equipment 34 Apply 320 mmHg of pressure to the gauge 35 Release the pressure to 300 mmHg 36 Compare the reading of wall or mobile gauge under test to a calibrated digital pressure meter Test Specifications 37 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 23 S
16. test to a high quality known pressure standard traceable to the National Institute of Standards and Technology and a 500 cc test volume 2 Pressurize the gauge to slightly above 300 mmHg and bleed down the pressure no faster than 10 mmHg per second stopping to check the pressure at 300 250 200 150 100 60 and 0 mmHg 3 Record the readings of the instrument under test and the applied pressure The difference is the error of the instrument The error of the reference pressure should be added to the specified accuracy of the instrument under test 3 mmHg to determine the working accuracy of your calibration set up NOTE Your ability to measure the accuracy of a sphygmomanometer depends upon the sensitivity of the pressure standard you use for the calibration procedure Example If using a device e g digital pressure standard rated at 0 1 mmHg you will be able to determine the accuracy of the gauge being tested to within 3 1 mmHg Welch Allyn recommends using a pressure standard that is as sensitive as possible when performing calibration checks A Setra Pressure Meter part no 2270 01 which is calibrated for 0 1 mmHg or Netech Pressure Meter part no 200 2000IN which is calibrated for 1 0 mmHg work well for this application 4 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D General Information Section 1 New S amp K Movement The S amp K movement is now being used in all Classic Hand Aneroid
17. the gear sector Check for gear sector starting position as defined previously Adjust if necessary Re assemble the test dial and test pointer Recheck the span and adjust as necessary prior to inspection at the intermediate points 46 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Approximately 15 degrees Approximately 30 degrees FIRST w BEND di a 2nd BEND BEND TAGENT OR SLIGHTLY BELOW RADIUS 2 W I We 050 Figure 3 15 S amp K pin Adjustment if reading is low at 60 mmHg Note In all adjustments during calibration the gear sector starting position will affect accuracy Sometimes this alone can be used as an individual adjustment to achieve conformance Higher readings will be realized when the gear sector is extending beyond the edge of the top plate and lower readings will be realized when it is within the edge of the top plate 23 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish the calibration of the Pro Check Hand Gauge 24 Remove the test pointer and test dial Replace the gauge s dial 25 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Ensure that it is resting in the center of the oval Gently tap the pointer with small hammer to secure or use T11269
18. 4 If the pointer is not at 0 upon release of pressure rotate the test dial until the pointer is on the 0 mark of test dial Repeat steps 20 23 until the span is set 25 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no visible leak Check and finish calibration of the Economy Gauge 26 Remove the test pointer and test dial Replace the gauge s dial Use 3M Plastic Adhesive 1099 to secure the dial onto the case 27 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Rest the pointer in the center of the oval square Gently tap the pointer with a small hammer to secure the pointer 38 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 28 If the pointer is to the left of the oval square s center rotate the pointer counter clockwise until you feel a slight resistance Release the pointer Ensure the pointer returns to the center of the oval square 0 Repeat until correct 29 If the pointer is to the right of the oval square s center rotate the pointer clockwise until a slight resistance is felt Release the pointer Ensure the pointer returns to the center of the oval square 0 each time Repeat until correct 30 Place the crystal and bezel back onto the gauge and test Testing of the Economy Gauge 31 Connect the economy gauge to be t
19. 561 8797 South Africa 27 11 777 7509 Australia 61 2 9638 3000 Singapore 65 6291 0882 Japan 81 3 5212 7391 China 86 21 6327 9631 Before contacting Welch Allyn it is helpful to attempt to duplicate the problem and to check all accessories to ensure that they are not the cause of the problem 2 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D General Information Section 1 When calling please be prepared to provide s The product name model number and complete description of the problem The serial number of your product if applicable The complete name address and phone number of your facility s For out of warranty repairs or spare parts orders a purchase order or credit card number The required spare or replacement part number s for parts order Repairs If your product requires warranty extended warranty or non warranty repair service first call the nearest Welch Allyn Technical Support Center A representative will assist you in troubleshooting the problem and will make every effort to solve the problem over the phone avoiding a potential unnecessary return In case the return cannot be avoided the representative will record all necessary information and will provide a Return Material Authorization RMA number as well as the appropriate return address A Return Material Authorization RMA number must be obtained prior to any return Be sure to note this number on the outside of
20. 7 pointer assembly tool 26 Place the crystal and bezel back onto the gauge and test the gauge 27 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 47 Section 3 Repair and Calibration 48 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair Parts Section 4 Old Style Classic Pocket Repair Parts Pointer Spring Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 49 Section 4 Repair Parts Old Style Classic Hand Repair Parts Part Number Description Part Number Description 9P2651 Screw Cover 3P831 Bezel 95132 Thumb Screw 34P760A Crystal 42P252 Valve Body Assembly 635401 Pointer 5090 30 Screen Assy Bulb Adapter 9P2594 Screw Movement 12P490 Bulb Adapter 935617 Movement 5098 07 Lure Lock Set 61S8694 Diaphragm Assembly 5086 01 Bulb _ l n Lock Nut Mu ST 440 160 M 1 180 2 200 gt 20 2402 Ticos 50 Welch Allyn Aneroid Sphygmomano
21. JA 20113 6 SI919UUOUGU OUS Aude proouy UAJY PPM Tools Required for Service Tool Number Description Old Style Old Style Old Style Old Style Old Style TR 2 TR 1 S amp K S amp K S amp K S amp K Economy Pocket Hand 509 7670 Hand Pocket 509 7670 Bl Tweezers ECON T 1 EC WOW AAA ops meso II Ciper 16 Open We AS H mmm ELECO ox x mer rer 1 mm Depart mme seng __ Xx mue Jaen II mm cm O mwn eeng mm pen JIL me ammeu III mwn sep TX moen ara Xx x x mme pegepgenr 1 III en JE ELL mer Jeer RA mm aisect YAA mws noe rea AAA A rs pr Y PAYO EST SET iY Xf T Ea ro rasa OOOO AA AAA mr emt AAA AS mes rra AAA AA AAA AA CEC EST AAA AA PE A PX TX E E E mmm se 1_ 11 117171 TT a ee mmer rra AA AAA mee mv AA A rss rr E S x x 1 1111 9 H mas Tres A TRATA TAR z z 92IAIoS Z uopoos sJ230uroueurioui34yds prozouy UATTY PPA OT AY pOSd 6 ENUR 201496 Tool Number Description Old Style Old Style Old Style Old Style Old Style TR 2 TR 1 S amp K S amp K S amp K LT LT 509 7670 Hand Ge 509 7670 TE EU AA DEE ES SF e tT TT M MA AAN A Me i sl lt i EEE E E ND E Local Tool Store 3M Plastic Adhesive 1099 Test equipment pre ey a LT 509 7670 Hand Pocket 509 7670 equivlantixors pull a suction a 20 mmHg In Fitting x i xX Xx AAA a ppp a pp e AAA AO O a x x 2270 01 Setra Digital Pressure Meter Local Tool Store T
22. REW 0 40 X 19 PAN HEAD POINTER WHITE 59MM 6 590201 BEZEL 5091 ANEROID 4P417 gt e 4 Re 3 Dial Not Available Sp ES 1 _ Nu lt Y N 7 A es 58 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair Parts Section 4 S amp K Walt 767 Series Repair Parts 590350 SUB ASSY 767 WALL 9P2841 SCREW 0 40 X 19 PAN HEAD 18 87 910 POINTER BLK ORANGE 59 MM 6 34P768 CRYSTAL 767 ANEROID 3P844 BEZEL 767 ANEROID 6 4 A T w E N a a 3 f gt Dial Not Available FA NN L L e TON 1 U CN Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 59 Section 4 Repair Parts 60 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D
23. Welch Allyn Service Manual Aneroid Sphygmomanometers Welch Allyn Inc 4341 State Street Road P O Box 220 Skaneateles Falls NY 13153 0220 95P504 Rev D Copyright 2001 Revision Information Date ECN ECO Revision Description Author Approved 8 31 00 A 5 15 01 Introduction of Aneroid Service Manual Corrected tolerance levels in the gauge tests sections Corrected minor grammatical errors 8 18 03 5 46368 5 27 04 1000873 Corrected BOM tooling and BSW RJS procedures Correction of tooling part numbers Arden document release to SKF JDB JDB WWR DLK Drawings and or illustrations and or part numbers in this document are for reference only For the most current revision call the Welch Allyn Customer Service phone number listed in Section 1 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 1 ii Welch Allyn Aneroid Sphygmomanometers 95P504 Rev D Table of Contents Section 1 General Information TO Service Personnel ued nica 1 Intent of Manual and Product Scope dd ER OR 1 Limited Warranty ee YG A YU Ee 2 Warranty Service and Spare Parts A A AAA ik st 2 MAER e E TEE 2 Assistance and EE 2 Repaits A O 3 Packing Instructions scada aa 3 Periodic Calibration Requirements EE 3 NEW ET EE 5 EIRE EE 6 Section 2 Service Tools Required for Servico aida 9 RE EE 11 Test Equipment Bench Layout ri ES FD YO CF FOCS FA DG 11 Section 3 Repair and Calibra
24. ach time Repeat until correct 32 Place the crystal and bezel back onto the gauge Test the gauge 33 Connect the gauge to the test equipment 34 Apply 320 mmHg to the gauge 35 Release the pressure to 300 mmHg Note The aneroid gauge must be accurate to 3 mmHg at the stated target pressures Use a calibrated digital pressure meter 36 Compare the reading of the calibrated digital pressure meter to that of the gauge under test 37 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 15 Section 3 Repair and Calibration Classic Pocket Aneroid Gauges Date stamp of October 2003 or later With S amp K movement Initial Gauge Check 1 Before performing calibration a Check the gauge for a sticky or jumpy pointer movement b Attach gauge to test equipment and test for leaks c Check the clip for correct tension Replace before calibration Opening Removing and Replacing Parts of the Classic Pocket Gauge 2 Place the pocket gauge into the Pocket Gauge Fixture T74555
25. auge s pointer onto the pinion Ensure that it is resting in the center of the oval Gently tap the pointer with small hammer to secure or use 1112697 pointer assembly tool 30 Place the crystal and bezel back onto the gauge and test the gauge 31 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 43 Section 3 Repair and Calibration TR 2 Pro Check Hand Aneroid Replacing Parts on Pro Check Hand Aneroid 1 Insert a screwdriver at bottom of the crystal and pry out crystal 2 Loosen and remove pointer using 118814 3 Insert the screwdriver at the bottom of the dial and remove the dial from the gauge 4 Unscrew the complete base plate with the movement and remove the washer using T112833 movement removal tool Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench 118904 using adapter 118891 Calibration of the Pro Check Hand Aneroid 5 Connect the gauge to the air supply with luer fitting 6 Position test dial and test pointer
26. ble the test dial and test pointer Recheck span and adjust as necessary prior to inspecting the intermediate points Low Readings of the Classic Pocket Aneroid at 60 or 100 26 Remove the test pointer and test dial Position the calibration tool over the adjusting pin and push it down to the cross shaft Lift the tool approximately 1 16 inch and bend the pin approximately 15 degrees See Figure 3 3 While maintaining this position lift the tool 18 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 to point where the pin makes contact with the gear sector Bend the pin down 30 degrees Remove the tool and release the gear sector Check for gear sector starting position as defined previously Adjust if necessary Re assemble the test dial and test pointer Recheck the span and adjust as necessary prior to inspection at the intermediate points Approximately 15 degrees Approximately 30 degrees FIRST sl BEND TS 2nd BEND BEND TAGENT OR SLIGHTLY BELOW RADIUS 2 ry 050 Figure 3 3 S amp K pin adjustment if reading is low at 60 mmHg Note In all adjustments during calibration the gear sector starting position will affect accuracy Sometimes this alone can be used as an individual adjustment to achieve conformance Higher readings will be realized when the gear sector is extending beyond the edge of the top plate and lower readings will be realized when it is within the
27. e from manufacturer s specifications within this time at no cost to the customer It shall be the purchaser s responsibility to return the instrument to Welch Allyn Inc or an authorized distributor agent or service representative This warranty does not include breakage or failure due to tampering misuse neglect accidents modification or shipping This warranty is also void if the instrument is not used in accordance with manufacturer s recommendations or if repaired by other than Welch Allyn Inc or an authorized agent Purchase date determines warranty requirements No other express warranty is given To receive service assistance or to ask questions regarding this warranty please call your nearest Welch Allyn Technical Support Center Warranty Service and Spare Parts Warranty Service All repairs on products under warranty must be performed or approved by Welch Allyn Unauthorized repairs will void the warranty In addition whether or not covered under warranty any product repair shall exclusively be performed by Welch Allyn trained and certified service personnel Assistance and Parts If the product fails to function properly or if assistance service or spare parts are required contact the nearest Welch Allyn Technical Support Center USA 1 800 535 6663 Latin America 1 305 669 9591 European Call Center 353 469 067 790 United Kingdom 0 207 365 6780 France 33 1 60 09 33 66 Germany 49 7477 927 173 Canada 1 800
28. e the crystal and perform a full test Testing of the Wall and Mobile Aneroid 32 Connect the Wall or Mobile Gauge to the test equipment 33 Apply 320 mmHg of pressure to the gauge 34 Release the pressure to 300 mmHg 35 Compare the reading of wall or mobile gauge under test to a calibrated digital pressure meter 36 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy 28 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Classic Hand Aneroid Gauge Date stamp of September 2003 or earlier Note Before calibrating the Classic Hand Gauge a Check the connector fitting for damage b Inspect o ring c Check spring and ball d Move thumb screw and check for uniform movement e Check movement for damage Replacing Parts of the Hand Gauge 1 Pull the bulb off of the valve body 2 Place the hand gauge into the hand gauge fixture 1107569 3 Remove the bezel by unscrewing it counter clockwise from the case Remove the crystal 4 Remove the pointer by using the pointer removal tool 118814
29. earity Adjustment of the Pro Check Hand Aneroid As required sss 45 High Readings of the Pro Check Aneroid Predominantly at 250 and 200 occononccccnonccnnnonannnin nns 45 Check and finish the calibration of the Pro Check Hand Gauge sss sss 47 Section 4 Repair Parts Old Style Classic Pocket Repair Parts ni o 49 Old Style Classic Hand Repair Parts aa 50 Old SEV ENN Repair EE 51 Old Style Classic Wall Mobile Repair Parts EE 52 Economy Aneroid Repair Patis si Y Y GY y FY CE 53 TRI Silver Ring Renau Parts ga AAA AA AAA 54 FR Pro Check Repair Parts oerna GWYW 55 S amp K Classic Pocket Repair Earth ii S6 Sock Classic Hand Repair Partes adds bi iii 57 S amp K Wall Mobile Series 509 Repair Parts un A YF 58 Sock Walle 767 Series Repair E 52 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers v General Information Section 1 To Service Personnel The information contained in this publication is subject to change without notice and should not be construed as a commitment by Welch Allyn Inc Welch Allyn assumes no responsibility for any errors that may appear in this manual If the product and or its operation varies significantly from any description herein please contact the following Welch Allyn Inc 1 800 535 6663 315 685 4100 Fax 315 685 3361 Welch Allyn Inc 4341 State Street Road Skaneateles Falls NY 13153 0220 USA This product has been designed to provide a high degree of safety and reliabi
30. ect position per step 13 Tighten the capsule nut Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 13 Section 3 Repair and Calibration Setting the Classic Pocket Gauge Tension 15 Loosen the sector stop lug and pull it towards the bottom of the gauge 16 Using your left index finger push the sector gear all the way to the post and hold in that position 17 Place the tension setting tool 1119628 onto the pinion at the 9 o clock position 18 Rotate the tension setting tool clockwise to the 5 o clock position 19 Release the sector gear and continue rotating the tension setting tool to the 9 o clock position The sector gear should be moving during this step 20 Bring the sector stop lug back to correct position and lock it into place Setting the Classic Pocket Gauge Span 21 Place the test dial 1105721 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 22 Apply 320 mmHg to the gauge 23 Release the pressure to 300 mmHg 24 If the pointer is pointing to less than 300 place the calibration tool T106845A into the radius plate slot above the screw Rotate the calibration tool counter clockwise towards the bottom of the gauge until the test pointer reaches 300 Release the pressure to 0 mmHg and check at the 0 point 25 If the test pointer is pointing to greater than 300 position the calibration tool T106845A between the sector
31. ection 3 Repair and Calibration Classic Wall and Mobile Aneroid Gauge Date stamp of October 2003 and later With S amp K movement 7670 series Wall and Mobile Aneroid Disassembly 1 Remove the bezel from the case by prying the 4 tabs up Pull out on the bezel 2 Remove the crystal 3 Remove the pointer by using the pointer removal tool 118814 Visually inspect and straighten if needed 4 Remove the screws of the dial by using the torque driver T112594A Remove the dial 5 Remove the screws that are holding down the mount to the case of the gauge by using a Phillips head screwdriver 6 Remove the movement using 119035 Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench 118904 using adapter 118891 Classic Wall and Mobile Aneroid Disassembly 7 Remove the crystal by pushing down and out at the top Remove the crystal 8 Remove the pointer by using the pointer removal tool 118814 Inspect and straighten if needed 9 Remove the dial by removing the screws with the torque driver 1112459A 10 Remove the movement and the mount by unscrewing the standoffs Remove them from the case Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench 118904 using adapter 118891 Calibration of the Wall and Mobile Gauge 11 Connect the gauge to the test equipment 12 Remove the bezel crystal pointer and dial Checking the Wall Mobile
32. en released c Check the pinion Ensure that it rotates correctly and is not bent 10 Connect the gauge to the test equipment 11 Remove the bezel crystal pointer and dial Sector Gear Alignment for the Wall and Mobile Aneroid 13 View the sector gear and ensure proper position The right edge of the sector gear should align with the mark on the base of the movement Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 21 Section 3 Repair and Calibration 14 If the sector gear is not aligned properly loosen the capsule nut using 1105258 Adjust the sector gear by turning the capsule until the sector gear is in the correct position per step 13 Tighten the capsule nut Setting the Tension of the Wall and Mobile Aneroid 15 Loosen the sector stop lug and pull it towards the bottom of the gauge 16 Using your left index finger push the sector gear all the way to the post and hold that in position 17 Place the tension setting tool 1119628 onto the pinion at the 9 o clock position 18 Rotate the tension setting tool clock wise to the 5 o clock position 19 Release the sector gear and continue rotation to the 9 o clock position The sector gear should be moving during this step 20 Bring the lug back to the correct position and lock it into place Setting the span of the Wall and Mobile Aneroid 21 Place the test dial 1112641 for 767 Series or 1112663 for 509 Series onto the gauge Place the
33. essure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate the effects of the adjustment 18 If the span is too high using calibration tool 118816 bend the adjustment pin towards the pinion parallel to the gear sector when pressurized at 300 mmHg Change the pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate effects of adjustment See Figure 3 13 19 Repeat the above steps as required to obtain correct span adjustment Figure 3 13 S amp K span adjustment Linearity Adjustment of the Pro Check Hand Aneroid As required Note If the 0 mmHg and 300 mmHg position are correct and the other points at 250 mmHg or 60 mmHg are either too high or too low then perform the following adjustments High Readings of the Pro Check Aneroid Predominantly at 250 and 200 20 Remove the test pointer and test dial Position the calibration tool 118816 over the adjusting pin and push it down to the cross shaft Move the gear sector with your finger of other hand to allow access Rotate the pin by pushing the sector gear to move the hook away from the diaphragm approximately 15 degrees While maintaining this position lift Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 45 Section 3 Repair a
34. est pointer is pointing on the test dial 18 Take the average of where the pointer was between step 16 and step 17 Rotate the test dial s zero mark to that averaged position Span Adjustment of the Classic Pocket Aneroid 19 Apply 320 mmHg of pressure to the gauge Bleed down to 300 mmHg Note the pointer s position and maintain pressure 20 If the span is too low using calibration tool 118816 bend the adjustment pin away from pinion parallel to gear sector arm See Figure 3 1 Release the pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate the effects of the adjustment 21 If the span is too high using calibration tool 118816 bend the adjustment pin towards the pinion parallel to the gear sector arm See Figure 3 1 Release the pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate effects of adjustment 22 Repeat the above steps as required to obtain correct span adjustment Figure 3 1 S amp K span adjustment Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 17 Section 3 Repair and Calibration Linearity Adjustment of the Classic Pocket Aneroid As required Note If the 0 mmHg and 300 mmHg position are correct and the other points at 250 mmHg or 60 mmHg are
35. ested to the test equipment 32 Apply 320 mmHg of pressure to the gauge 33 Release the pressure to 300 mmHg 34 Compare the reading of the gauge to that of the calibrated digital pressure meter Test Specifications 35 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 39 Section 3 Repair and Calibration TR 1 Silver Ring Hand Aneroid Replacing Parts of the Silver Ring 1 Unscrew the bulb from the gauge 2 Place a screwdriver under the bezel in the opening provided and lift the bezel 3 Place a screwdriver under the crystal in the opening provided and lift the crystal 4 Using the 118814 pointer removal tool remove the pointer from the pinion 5 Remove the dial from the housing 6 Remove the movement using 119035 movement removal tool 7 Remove the movement internal housing Pry loose with a jewlers screwdriver 8 Remove the valve body trigger module Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench 118904 using adapte
36. ff 10 year No Change Durashock DS44 09 w Child Cuff 5 year No Change Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 7 Section 1 General Information Model Model No Description Warranty Comments DS44 09P w Printed Child Cuff 5 year No Change DS44 10 w Sm Adult Cuff 5 year No Change DS44 11 w Adult Cuff 5 year No Change DS44 12 w Lg Adult Cuff 5 year No Change Arden Wall Aneroid Arden W01 Gage amp Cuff 5 year No Change Arden W02 Gage Only 5 year No Change Arden Pocket Aneroid Arden G01 w Adult Cuff 5 year No Change Arden G02 w Lg Adult Cuff 5 year No Change Arden G03 w Child Cuff 5 year No Change Arden G04 Gage Only 5 year No Change Economy Pocket Aneroid 7050 23 w Child Cuff 10 year Discontinue selling after 7 15 2003 7050 14 w Adult Cuff 10 year Discontinue selling after 7 15 2003 7050 24 w Lg Adult Cuff 10 year Discontinue selling after 7 15 2003 7050 43 w Thigh Cuff 10 year Discontinue selling after 7 15 2003 Mercurial 5097 30 Desk 10 year Discontinued selling after 3 15 2003 5097 29 w Mobile Stand 10 year Discontinued selling after 3 15 2003 5097 26 w Wall Mount 10 year Discontinued selling after 3 15 2003 5097 11 w Wall Mount amp Orange Scale 10 year Discontinued selling after 3 15 2003 8 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D I A99 HOSASG JPNUB
37. g g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy 20 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Classic Wall and Mobile Aneroid Gauge Date stamp of July 2003 or earlier 7670 series Wall and Mobile Aneroid Disassembly 1 Remove the bezel from the case by prying the 4 tabs up Pull out on the bezel 2 Remove the crystal 3 Remove the pointer by using the pointer removal tool 118814 Visually inspect and straighten if needed 4 Remove the screws of the dial by using the torque driver 1112459 Remove the dial 5 Remove the screws that are holding down the mount to the case of the gauge by using a Phillips head screwdriver Note Reassemble in reverse order Classic Wall and Mobile Aneroid Disassembly 6 Remove the crystal by pushing down and out at the top Remove the crystal 7 Remove the pointer by using the pointer removal tool 118814 Inspect and straighten if needed 8 Remove the dial by removing the screws with the torque driver 1112459 9 Remove the movement and the mount by unscrewing the standoffs Remove them from the case Note Reassemble in reverse order Calibration of the Wall and Mobile Gauge Note Before performing calibration a Check the hair spring Ensure it is uniform and not distorted b The movement should be slow wh
38. ition and maintain pressure 21 If the span is too low using calibration tool T18816 bend the adjustment pin away from pinion parallel to gear sector arm Change pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate the effects of the adjustment 22 If the span is too high using calibration tool T18816 bend the adjustment pin towards the pinion parallel to the gear sector when pressurized at 300 mmHg Change the pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate effects of adjustment See Figure 3 10 23 Repeat the above steps as required to obtain correct span adjustment Figure 3 10 S amp K span adjustment Linearity Adjustment of the Silver Ring Aneroid As required Note If the 0 mmHg and 300 mmHg position are correct and the other points at 250 mmHg or 60 mmHg are either too high or too low then perform the following adjustments Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 41 Section 3 Repair and Calibration High Readings of the Silver Ring Aneroid Predominantly at 250 and 200 24 Remove the test pointer and test dial Position the calibration tool 118816 over the adjusting pin and push it down to the cross shaft Move the gear sector with your fi
39. lity However we can not guarantee against deterioration of components due to aging normal wear tampering and abuse Only Authorized Welch Allyn personnel or agents must perform all service and repairs using approved Welch Allyn replacement parts and approved process materials Failure to follow these guidelines will invalidate the product warranty Please refer to the product warranty for specific coverage Intent of Manual and Product Scope This manual provides technical service and re calibration information to technicians authorized to repair and re calibrate Welch Allyn Inc products When used in conjunction with the required test equipment and tools technicians will be able to diagnose repair re calibrate and test the Aneroid Sphygmomanometer The manual includes re calibration instructions fault cause analysis step by step disassembly and re assembly procedures repair adjustment and re test procedures Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 1 Section 1 General Information Limited Warranty Welch Allyn Inc warrants the Aneroid Sphygmomanometers when new to be free of defects in material and workmanship and to perform in accordance with manufacturer s specifications for a period of see Table 1 1 from the date of purchase from Welch Allyn Inc or its authorized distributors or agents Welch Allyn Inc will either repair or replace any components found to be defective or at varianc
40. meters Service Manual 95P504 Rev D Repair Parts Section 4 Old Style 767 Wall Repair Parts 2P1631 vull YU UHI AN NYDD NN SS Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 51 Section 4 Repair Parts Old Style Classic Wall Mobile Repair Parts Part Number 2P1138 Part number 34p417 Crystal 9P1804 Spacer 9p2841 Dial Mounting Screw 615681 Diaphragm Assembly 638298 Poen USA 14P1718 2P1503 Housing Gray Wall 8P949 Bracket Bushing 9P2465 Screw Case 32P763 22P830 Washer Case 9356170 mm s Se ROTA een A en Vi ating W140 160 I Y 180 S 120 Z S Toos 100 Lag EN 60 Z earm 2 40 c 0050 280 47 S 20 em 300 Lifetime Certified Y CH 1 UU Swe MOVEMENT VW 14P1718 O 52 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair Parts Section 4 Economy Aneroid Repair Parts SS Ze 160 D 180 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 53 Section 4 Repair Parts TR1 Silver Ring Repair Parts Part Number __ Description Part Number Description 12P368 Adapter 52P1848 Dial oy 75P290___ ORingg_____ 18P192 Bulb Collar 2P1632 Housing 23P430 Bulb Adapter 33P131 Movement Cup 97s581 Bulb 70P450 Button P1240 Spring 7P716_ Pivot Pin 428262 Valve Body 935720 Movemen
41. n per step 16 Tighten capsule nut To set the tension of the Classic Hand Gauge 18 Loosen the sector stop lug and pull it towards the bottom of gauge 19 Using your left index finger push the sector gear all the way to the post and hold it in that position 20 Place the tension setting tool 1119628 onto pinion at the 9 o clock position 21 Rotate the tool clock wise to the 5 o clock position 22 Release the sector gear and continue rotation to the 9 o clock position The sector gear should be moving during this step 23 Bring the lug back to the correct position and lock it into place Setting the span of the Classic Hand Gauge 24 Place the test dial 1105721 onto the gauge Place the test pointer onto the pinion Rotate the dial until the pointer is at pointing at 0 25 Apply 320 mmHg of pressure to the gauge 26 Bleed the pressure down to 300 mmHg 27 If the pointer is pointing to less than 300 place the calibration tool T106845A into the radius plate slot above screw Rotate the calibration tool counter clockwise towards the bottom of the gauge until the sector gear pointer reaches 300 Release the pressure to 0 mmHg and check at the 0 point 28 If the pointer is pointing to greater than 300 using the calibration tool T106845A positioned between the sector gear and the radius plate Rotate the tool clockwise until the pointer is at 300 this brings the radius plate down Release the pressure to
42. nd Calibration the tool up from cross shaft approximately 1 16 inch and bend the pin back approximately 15 degrees See Figure 3 14 Lift the calibration tool up to the point where the pin makes contact with the gear sector and bend the pin up approximately 30 degrees A i l Approximately 15 degrees EE lana We FIRST BEND 2nd BEND BEND BELOW GEAR SECTOR OSO q Cross Shaft ll Hook Figure 3 14 S amp K pin adjustment if reading is high at 250 mmHg 21 Remove the tool and release the gear sector The resultant bend should result in the gear sector starting position being a max of 2 teeth extending beyond the top plate when viewed from a top position and a minimum of 2 teeth within the edge of the top plate This must be checked by pushing the gear sector 2 teeth from the other side of the top plate Adjust the secondary bend if the gear sector is out of these limits Re assemble the test dial and test pointer Recheck span and adjust as necessary prior to inspecting the intermediate points Low Readings of the Pro Check Hand at 60 or 100 22 Remove the test pointer and test dial Position the calibration tool over the adjusting pin and push it down to the cross shaft Lift the tool approximately 1 16 inch and bend the pin approximately 15 degrees See Figure 3 15 While maintaining this position lift the tool to point where the pin makes contact with the gear sector Bend the pin down 30 degrees Remove the tool and release
43. nger of other hand to allow access Rotate the pin by pushing the sector gear to move the hook away from the diaphragm approximately 15 degrees While maintaining this position lift the tool up from cross shaft approximately 1 16 inch and bend the pin back approximately 15 degrees See Figure 3 11 Lift the calibration tool up to the point where the pin makes contact with the gear sector and bend the pin up approximately 30 degrees Approximately 15 degrees Approximately EEE w FIRST BEND 2nd BEND BEND BELOW GEAR SECTOR O5O wm Cross Shaft E Hook Figure 3 11 S amp K pin adjustment if reading is high at 250 mmHg 25 Remove the tool and release the gear sector The resultant bend should result in the gear sector starting position being a max of 2 teeth extending beyond the top plate when viewed from a top position and a minimum of 2 teeth within the edge of the top plate This must be checked by pushing the gear sector 2 teeth from the other side of the top plate Adjust the secondary bend if the gear sector is out of these limits Re assemble the test dial and test pointer Recheck span and adjust as necessary prior to inspecting the intermediate points Low Readings of the Silver Ring Aneroid at 60 or 100 26 Remove the test pointer and test dial Position the calibration tool over the adjusting pin and push it down to the cross shaft Lift the tool approximately 1 16 inch and bend the pin approximately 15 degrees See
44. on the gage 7 Apply 300 mmHg of pressure View the gauge and ensure the leak is no greater than 10 mmHg in 5 seconds Checking the Pro Check Hand Gauge Span 8 Place the test dial 1112949 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 9 Apply 320 mmHg to the Gauge 10 Release the pressure to 300 mmHg 11 Observe the position of the pointer If the pointer does not align with the 300 go to Average Zero Starting Position 12 If the pointer does align with 300 goto Linearity Adjustment of the Pro Check Hand Aneroid Average Zero Starting Position 13 Apply 60 mmHg of pressure to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 14 Apply a 20 mmHg of vacuum to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 44 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 15 Take the average of where the pointer was between step 13 and step 14 Rotate the test dial s zero mark to that averaged position Span Adjustment of the Pro Check Hand Aneroid 16 Apply 320 mmHg of pressure to the gage to then bleed down to 300 mmHg Note position and maintain pressure 17 If the span is too low using calibration tool 118816 bend the adjustment pin away from pinion parallel to gear sector arm Change pr
45. op plate Adjust the secondary bend if the gear sector is out of these limits Re assemble the test dial and test pointer Recheck span and adjust as necessary prior to inspecting the intermediate points Low Readings of the Classic Hand Aneroid at 60 or 100 26 Remove the test pointer and test dial Position the calibration tool over the adjusting pin and push it down to the cross shaft Lift the tool approximately 1 16 inch and bend the pin approximately 15 degrees See Figure 3 9 While maintaining this position lift the tool to point where the pin makes contact with the gear sector Bend the pin down 30 degrees Remove the tool and release the gear sector Check for gear sector starting position as defined previously Adjust if necessary Re assemble the test dial and test pointer Recheck the span and adjust as necessary prior to inspection at the intermediate points Approximately 15 degrees Approximately 30 degrees FIRST sl BEND TOS 2nd BEND BEND TAGENT OR SLIGHTLY BELOW RADIUS 2 wi D Ke 050 Figure 3 9 S amp K pin adjustment if reading is low at 60 mmHg Note In all adjustments during calibration the gear sector starting position will affect accuracy Sometimes this alone can be used as an individual adjustment to achieve conformance Higher readings will be realized when the gear sector is extending beyond the edge of the top plate and lower readings will be realized when it is within the edge of the top plate
46. orque Bit size TS NOTE Only one of the pressure meters are needed The user can choose which will work best for them z Ge di a HL EEE EEE EEE JH EEE E Order from Netech 800 547 6557 Order from Setra 800 257 3872 Order from Festo 704 527 1427 Order from PMED 303 393 7800 Z uonoos S 99IAJI9 I AY pOSd 6 TENUE 9914195 LL s4239ur0uvurour3 yds proJau y UATTY PPA Test Specifications The following are the pressure test points that each gauge must be tested to after any repair is made 1 The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter traceable to NIST standards as the pressure standard to ensure complete accuracy Test Equipment Bench Layout Digital 500 cc Volume Pressure Meter Bulb and Valve Figure 2 1 Test Equipment Bench layout 99IAIoS Z uonpoos Section 2 Service 12 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Classic Pocket Aneroid Gauges Date stamp of September 2003 or earlier Initial Gauge Check 1 Before performing calibration a Check the clip for correct tension Replace before calibration b Ensure the lock nut i
47. r 118891 Calibration of the Silver Ring Hand Aneroid 9 Attach the air supply to the gauge with a luer fitting 10 Position the test dial and test pointer on gage 11 Apply 300 mmHg of pressure to the gauge View the gauge and ensure the gauge leaks no greater than 10 mmHg in 5 seconds Checking the Silver Ring Gauge Span 12 Place the test dial T19036 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 13 Apply 320 mmHg to the Gauge 14 Release the pressure to 300 mmHg 15 Observe the position of the pointer If the pointer does not align with the 300 goto Average Zero Starting Position 16 If the pointer does align with 300 goto Linearity Adjustment of the Silver Ring Aneroid 40 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 Average Zero Starting Position 17 Apply 60 mmHg of pressure to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 18 Apply a 20 mmHg of vacuum to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 19 Take the average of where the pointer was between step 17 and step 18 Rotate the test dial s zero mark to that averaged position Span Adjustment of the Silver Ring Aneroid 20 Apply 320 mmHg of pressure to the gage to then bleed down to 300 mmHg Note pos
48. r gear sector starting position as defined previously Adjust if necessary Re assemble the test dial and test pointer Recheck the span and adjust as necessary prior to inspection at the intermediate points Approximately 15 degrees Approximately 30 degrees FIRST sl BEND TOS 2nd BEND BEND TAGENT OR SLIGHTLY BELOW RADIUS 2 wi D Ke 050 Figure 3 6 S amp K pin adjustment if reading is low at 60 mmHg Note In all adjustments during calibration the gear sector starting position will affect accuracy Sometimes this alone can be used as an individual adjustment to achieve conformance Higher readings will be realized when the gear sector is extending beyond the edge of the top plate and lower readings will be realized when it is within the edge of the top plate 28 Check for leaks by pinching off the tubing from the test equipment while pressure is applied to the gauge There should be no leakage or movement of the pointer Check and finish calibration of the Wall and Mobile Aneroid 29 Remove the test pointer and test dial Replace the gauge s dial Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 27 Section 3 Repair and Calibration 30 Apply a small amount of red Loctite 266 to the pointer s hub Place the gauge s pointer onto the pinion Ensure the pointer is resting in center of oval 0 Gently tap the pointer with small hammer to secure or use 1112697 pointer assembly tool 31 Plac
49. s sese 21 Setting the Tension of the Wall and Mobile Aneroid sss 22 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers iii Table of Contents Setting the span of the Wall and Mobile Aneroid ENEE 22 Check and finish calibration of the Wall and Mobile Aneroid sss sese 22 Classic Wall and Mobile Aneroid Gauge Date stamp of October 2003 and later sss 24 7670 series Wall and Mobile Aneroid Disassembly EE 24 Classic Wall and Mobile Aneroid Disassembly sss 24 Calibration of the Wall and Mobile Gauge ri at ica 24 Checking the Wal Mobile Gauge Span a FYN Y Y a ya 24 Average Zero Starting BOSTON A O IA 25 Span Adjustment of the Wall Aneroldiad aaa 25 Check and finish calibration of the Wall and Mobile Aneroid sss sese 27 Classic Hand Aneroid Gauge Date stamp of September 2003 or earlier sese 29 Replacing Parts of the Hand EE 29 Calibration of the Classic Hand EE 29 Aligning the Sector Gear on the Classic Hand Gauge esse eee 30 To set the tension of the Classic Hand Gauge uan 30 Setting the span of the Classic Hand Gauge sss 30 Check and finish calibration of the Classic Hand Gauge sss sese 31 Testing of the Classic Hand Gauge sese 31 Test HR ele 31 Classic Hand Aneroid Gauge Date stamp of October 2003 or later sss eee 37 Replacing Parts of the Classic Hand EE 32 Calibration of the Classic Hand Gauge ni A 32 Checking the Classic Hand Gauge Span E 32 Average Zero Starting POSITION a 33 Span Adjustment of the Classic Hand
50. s tight c Check the hair spring Ensure that the hair spring is uniform and not distorted d Check the pinion Ensure that it rotates correctly and is not bent Opening Removing and Replacing Parts of the Classic Pocket Gauge 2 Place the pocket gauge into the Pocket Gauge Fixture 174555 3 Remove the bezel by unscrewing it from the case Remove the crystal 4 Remove the pointer using the pointer removal tool 118814 5 Pry out the dial using a small flat head screwdriver 6 Remove the capsule locking nut using span wrench 1107345 7 Remove the screw cap using T113249 Remove the capsule Note The arm of the movement fits into the top of the capsule 8 Remove the 2 screws that are holding down the gauge movement using T108897 Note Some units will use phillip head screws to secure the movement 9 Remove the movement Note Reassemble in reverse order Calibration of the Classic Pocket Gauge 10 Connect the gauge to test equipment 11 Place the gauge in to the pocket fixture 174555 12 Remove the bezel crystal pointer and dial Aligning Sector Gear on the Classic Pocket Gauge 13 View the sector gear and ensure that it is in the proper position The right edge of the sector gear should align with the mark on the base of the movement 14 If the sector gear is not aligned properly loosen the capsule nut using T107345 Adjust the sector gear by turning the capsule until the sector gear is in the corr
51. t L sei Valve Assembly 22P1454 Washer 5090 30 Breen Assy Bulb Adapter 34P434 Crystal L2PR Bezel oy 39P505 TrimRing 635410 Pointer Silver Ring Hand Gauge 2P1632 a A 34P434 038 935 720 756940 5090 31 75P240 5090 30 al 6354 1 0 11P1240 33P131 7716 wif 70P450 52P1848 54 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair Parts Section 4 TR2 Pro Check Repair Parts TR 2 ProCheck Hand Gauge Housing not available see Note Note Housing dial pointer and S amp K movement come as a Dial not available set Order 445915 see Note 70P446 935720 18P190 AE a T Pointer not available see Note 4 34P761 978583 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 55 Section 4 Repair Parts S amp K Classic Pocket Repair Parts 8 52P1837A GRAY 1 9 DIAL BLANK o 10 V Dial Not Available E 56 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair Parts Section 4 S amp K Classic Hand Repair Parts 9 baren Ia GER 10 9 gt Dial Not Available ER 12 13 15 16 17 18 19 2 26 OB y a 20 J 29 SS 32 23 24 Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 57 Section 4 Repair Parts S amp K Wall Mobile Series 509 Repair Parts Description SUB ASSY 5091 WALL SC
52. t and the other points at 250 mmHg or 60 mmHg are either too high or too low then perform the following adjustments High Readings of the Wall Mobile Aneroid Predominantly at 250 and 200 24 Remove the test pointer and test dial Position the calibration tool T18816 over the adjusting pin and push it down to the cross shaft Move the gear sector with your finger of other hand to allow access Rotate the pin by pushing the sector gear to move the hook away from the diaphragm approximately 15 degrees While maintaining this position lift the tool up from cross shaft approximately 1 16 inch and bend the pin back approximately 15 degrees See Figure 3 8 Lift the calibration tool up to the point where the pin makes contact with the gear sector and bend the pin up approximately 30 degrees i l Approximately 15 degrees Approximately 30 degrees FIRST BEND 2nd BEND BEND BELOW GEAR SECTOR 050 q Cross Shaft E Hook Figure 3 8 S amp K pin adjustment if reading is high at 250 mmHg 34 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 25 Remove the tool and release the gear sector The resultant bend should result in the gear sector starting position being a max of 2 teeth extending beyond the top plate when viewed from a top position and a minimum of 2 teeth within the edge of the top plate This must be checked by pushing the gear sector 2 teeth from the other side of the t
53. ter Test Specifications 39 The following are the pressure test points that each gauge must be tested to after any repair is made The gauge must be accurate to within 3 mmHg at the following test pressures a 0 mmHg pointer inside the oval rectangle b 60 mmHg c 100 mmHg d 150 mmHg e 200 mmHg f 250 mmHg g 300 mmHg Note Calibration of all gauges must be performed using a Calibrated Digital Pressure Meter as the pressure standard for complete accuracy Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 31 Section 3 Repair and Calibration Classic Hand Aneroid Gauge Date stamp of October 2003 or later Note Before calibrating the Classic Hand Gauge a Check pointer movement for sticky or jumpy movement b Check for bent pinion c On gages with air release valve check air release valve function d Connect to test equipment and check for a leak e Pump bulb to indicate between 250 300 mmHg Actuate air release valve by partially depressing button and observe for controllable deflation rate f Fully depress button and observe for rapid dump rate should be immediate g On gages with button check button function Replacing Parts of the Classic Hand Gauge 1 Pull the bulb off of the valve body 2 Place the hand gauge into the hand gauge fixture 1107569 3 Remove the bezel by unscrewing it counter clockwise from the case Remove the crystal 4 Remove the pointer by using the pointer removal
54. test pointer onto the pinion Rotate the test dial until the pointer is at 0 22 Apply 320 mmHg of pressure to the gauge 23 Release the pressure to 300 mmHg 24 If the pointer is pointing to less than 300 place the calibration tool T106845A into the radius plate slot above the screw Rotate the calibration tool counter clockwise towards the bottom of the gauge until the sector gear pointer reaches 300 Release the pressure to 0 mmHg and check at the 0 point 25 If the pointer is pointing to greater than 300 using the calibration tool T106845A positioned between the sector gear and the radius plate Rotate the tool clockwise until the pointer is at 300 this brings the radius plate down Release the pressure to 0 mmHg and check the 0 point 26 If the pointer is not pointing at 0 upon the release of pressure rotate the test dial until the pointer is on the 0 mark of test dial Repeat steps 22 25 until the span is set 27 Check for leaks by pinching off the tubing from the test equipment while pressure is on the gauge There should be no visible leak Check and finish calibration of the Wall and Mobile Aneroid 28 Remove the test pointer and test dial Replace the gauge s dial 22 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 29 Apply a small amount of red Loctite 266 to the hub of the pointer Place the gauge s pointer onto the pinion Ensure the
55. time Replace w S amp K Assy 5098 02 w Child Cuff Lifetime Replace w S amp K Assy 5098 20 w Various Size Cuffs Lifetime Replace w S amp K Assy 5098 23 w Various Size Printed Cuffs Lifetime Replace w S amp K Assy 5098 18 w Various Printed Ped Cuffs Lifetime Replace w S amp K Assy Classic Pocket Aneroid 5090 06 w Child Cuff Lifetime Replace w S amp K Assy 5090 02 w Adult Cuff Lifetime Replace w S amp K Assy 5090 41 w Lg Adult Cuff Lifetime Replace w S amp K Assy 5090 37 w Thigh Cuff Lifetime Replace w S amp K Assy Wall Aneroid Series 509 5091 38 w Adult Cuff Lifetime Replace w S amp K Assy 5091 22 w Adult Cuff amp Orange Scale Lifetime Replace w S amp K Assy 5091 60 w 5 legged stand Lifetime Replace w S amp K Assy 5091 41 w 4 legged stand Wall Aneroid 767 Series 7670 01 w Adult Cuff Lifetime Replace w S amp K Assy TR1 Siler Ring Hand Aneroid 5098 29 w Child Cuff 10 year No Change 5098 27 w Adult Cuff 10 year No Change 5098 28 w Lg Adult Cuff 10 year No Change 5098 30 w Various Size Printed Cuffs 10 year No Change TR2 Procheck Hand Aneroid 5098 72 w Child Cuff 5 year No Change 5098 70 w Adult Cuff 5 year No Change 5098 71 w Lg Adult Cuff 5 year No Change 5098 73 w Various Size Printed Cuffs 5 year No Change Durashock DS45 09 w Child Cuff 10 year No Change DS45 09P w Printed Child Cuff 10 year No Change DS45 10 w Sm Adult Cuff 10 year No Change DS45 11 w Adult Cuff 10 year No Change DS45 12 w Lg Adult Cu
56. tion Classic Pocket Aneroid Gauges Date stamp of September 2003 or earlier esse eee 13 Initial Gauge Check 13 Opening Removing and Replacing Parts of the Classic Pocket Gauge sese 13 Calibration of the Classic Pocker Gau ce EE 13 Aligning Sector Gear on the Classic Pocket Gauge esse eee eee 13 Setting the Classic Pocket Gauge Tension esse eee 14 Setting the Classic Pocket Gauge SPAM AAA EA AAA A EA AAA ARA 14 Check and finish the calibration of the Classic Pocket Gauge esse 14 Classic Pocket Aneroid Gauges Date stamp of October 2003 or later sese 16 Initial Gauge Check sia ainda 16 Opening Removing and Replacing Parts of the Classic Pocket Gauge sese 16 Calibration of the Classic Pocket EE 16 Checking the Classic Packer Gauge E 16 Average Zero Starting Positions scssssienceeecnccesioladed dheh chen ENEE dee deed dE steeds 17 Span Adjustment of the Classic Pocket Aneroid 4 dt da diia iaa 17 Linearity Adjustment of the Classic Pocket Aneroid As required sss esse 18 High Readings of the Classic Pocket Aneroid Predominantly at 250 and 200 sese esse eee 18 Check and finish the calibration of the Classic Pocket Gauge sees 19 Testing the Classic EE 19 Classic Wall and Mobile Aneroid Gauge Date stamp of July 2003 or earlier sss sese 21 7670 series Wall and Mobile Aneroid Disassembly sss 21 Classic Wall and Mobile Aneroid Disassembly sss sss 21 Calibration of the Wall and Mobile Gauge E 21 Sector Gear Alignment for the Wall and Mobile Aneroid ss
57. to 300 mmHg to evaluate the effects of the adjustment See Figure 3 4 23 If the span is too high using calibration tool 118816 bend the adjustment pin towards the pinion parallel to the gear sector when pressurized at 300 mmHg Change the pressure to 0 mmHg Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate effects of adjustment See Figure 3 4 24 Repeat the above steps as required to obtain correct span adjustment Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 25 Section 3 Repair and Calibration Figure 3 4 S amp K span adjustment Linearity Adjustment of the Wall Mobile Aneroid As required Note If the 0 mmHg and 300 mmHg position are correct and the other points at 250 mmHg or 60 mmHg are either too high or too low then perform the following adjustments High Readings of the Wall Mobile Aneroid Predominantly at 250 and 200 25 Remove the test pointer and test dial Position the calibration tool 118816 over the adjusting pin and push it down to the cross shaft Move the gear sector with your finger of other hand to allow access Rotate the pin by pushing the sector gear to move the hook away from the diaphragm approximately 15 degrees While maintaining this position lift the tool up from cross shaft approximately 1 16 inch and bend the pin back approximately 15 degrees See Figure 3
58. tool 118814 5 Pry out the dial by using a small flat head screwdriver 6 Remove the thumbscrew using tool 1113265 thumbscrew wrench Turn the thumbscrew counter clockwise to remove 7 Remove the thumbscrew valve body using a 5 8 socket Note Reassemble in reverse order Ensure you tighten the movement down with torque wrench 118904 using adapter 118891 Calibration of the Classic Hand Gauge 8 Connect the gauge to the test equipment 9 Ensure that the valve of the gauge is closed 10 Increase the pressure to 250 mmHg Allow the pressure to stabilize for 15 seconds Check for a leak 11 Remove the bezel crystal pointer and dial Checking the Classic Hand Gauge Span 12 Place the test dial 118781 onto the gauge Place the test pointer onto the pinion Rotate the test dial until the pointer is at 0 32 Welch Allyn Aneroid Sphygmomanometers Service Manual 95P504 Rev D Repair and Calibration Section 3 13 Apply 320 mmHg to the Gauge 14 Release the pressure to 300 mmHg 15 Observe the position of the pointer If the pointer does not align with the 300 go to Average Zero Starting Position 16 If the pointer does align with 300 go to Linearity Adjustment of the Classic Hand Aneroid Average Zero Starting Position 17 Apply 60 mmHg of pressure to the gauge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 18 Apply a 20 mmHg of vacuum to the ga
59. uge Release the pressure to zero Mentally note where the test pointer is pointing on the test dial 19 Take the average of where the pointer was between step 17 and step 18 Rotate the test dial s zero mark to that averaged position Span Adjustment of the Classic Hand Aneroid 20 Apply 320 mmHg of pressure to the gage to then bleed down to 300 mmHg Note position and maintain pressure 21 If the span is too low using calibration tool 118816 bend the adjustment pin away from pinion parallel to gear sector arm Change pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate the effects of the adjustment 22 If the span is too high using calibration tool T18816 bend the adjustment pin towards the pinion parallel to the gear sector when pressurized at 300 mmHg Change the pressure to 0 Make sure to re adjust the test dial so that the pointer will be slightly left of the graduation line Re pressurize to 320 mmHg then to 300 mmHg to evaluate effects of adjustment See Figure 3 7 23 Repeat the above steps as required to obtain correct span adjustment Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 33 Section 3 Repair and Calibration Figure 3 7 S amp K span adjustment Linearity Adjustment of the Classic Hand Aneroid As required Note If the 0 mmHg and 300 mmHg position are correc
60. your shipping box Packing Instructions If you have to return goods for service follow these recommended packing instructions s Remove all hoses and ancillary products as appropriate before packing unless you suspect they are associated with the problem e Wherever possible use the original shipping carton and packing materials s Include a packing list and the Welch Allyn Return Material Authorization RMA number s Be sure to note the RMA number on the outside of your shipping box It is recommended that all returned goods be insured Claims for loss or damage to the product must be initiated by the sender Periodic Calibration Requirements Welch Allyn sphygmomanometers are manufactured to high standards for quality and accuracy The instruments are manufactured using calibrated pressure standards traceable to the National Institute of Standards and Technology During normal operation the location of the pointer within the oval square indicates that the instrument is most likely in calibration Should the pointer rest outside the oval box with zero pressure applied the instrument should be re calibrated Welch Allyn recommends that the calibration of mechanical sphygmomanometers be checked using the following procedures on an annual basis even if the pointer rests inside the oval box Service Manual 95P504 Rev D Welch Allyn Aneroid Sphygmomanometers 3 Section 1 General Information 1 Connect the instrument under

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