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Welch Allyn Medical Division

LS 135/150 Examination Light

Service Manual

4341 State Street Road

P.O. Box 220

Skaneateles Falls, NY 13153-0220

443194 Rev. B

Содержание LS-135

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Страница 3: ...r Service phone number listed in Section 1 page 3 o N t r a P v e R n o i t p i r c s e D N C E e t a D d e v o r p p A 4 9 1 3 4 4 A 0 5 1 S L 5 3 1 S L f o e s a e l e R w e N l a u n a M e c i v r...

Страница 4: ...ection 2 Service Incoming Inspection Checklist 1 Required Tools 1 Section 3 Troubleshooting Mechanical checks 1 Electrical checks 2 Section 4 Repair and Disassembly LS 135 Floor Model Dissambly 1 LS 1...

Страница 5: ...casterbase About the LS 150 Examination Light The LS 150 features a color corrected 50 watt lamp that delivers superior light quality across the variablespectrumformoreaccuratecolorrendition Thespecia...

Страница 6: ...replacing with Welch Allyn lamp DANGER Electric Shock Hazard Refer servicing to qualified service personnel DANGER Risk of explosion if used in the presence of flammable anesthetics HOT SURFACE Lamp s...

Страница 7: ...USA tel 305 669 9003 fax 305 669 1971 Welch Allyn GMBH Zollerstrasse 2 4 72417 Jungingen Germany tel 011 49 7477 927186 fax 011 49 7477 927193 Welch Allyn France SARL 814 rue Charles de Gaulle 77100...

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Страница 9: ...the carton then check with your receiving department If necessary contact Welch Allyn at the Address and phone number shown in Section 1 5 Clean and disinfect by following the instructions printed in...

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Страница 11: ...f it does not hold replace the Bushing and o rings on the Gooseneck 5 Housings Head or Base Replace any that have damage or cracks Check the Head housings for hairline cracks around the Bushing Replac...

Страница 12: ...witch Function Test LS 135 Only Note For this test Unit should be unplugged from outlet A known good Lamp should be installed 1 Disconnect Gooseneck Harness from Pole Harness 2 Check for correct wire...

Страница 13: ...135 150 Service Manual 443194 Rev B Welch Allyn Exam Light 1 NOTE Disassembly of LS 135 Floor model 1 Loosen the screw that secures the lamp nose assembly 2 Lift lamp nose assembly 3 Release the lamp...

Страница 14: ...Section 4 Disassembly and Repair 2 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B 4 Unplug lamp 5 Remove lamp head by removing 5 screws 6 Remove lamp bottom housing LS 135 Floor Model...

Страница 15: ...switch connections and placement of wire behind standoff white wire red wire yellow wire brown lamp socket wires 7 To disassemble disconnect wires and remove gooseneck from lamp head 8 Use small flat...

Страница 16: ...rvice Manual 443194 Rev B Note Colors of wiring harness on pole end of gooseneck Red wire is in key side of connector 9 Gooseneck assembly can be disassembled as per the following steps 10 Use pin rem...

Страница 17: ...vice Manual 443194 Rev B Welch Allyn Exam Light 5 11 Use 3 32 hex key to remove screw 12 Pull bottom bushing away from flexible arm Note the o rings on lower flex bushing 13 Remove snap ring from uppe...

Страница 18: ...yn Exam Light LS 135 150 Service Manual 443194 Rev B 14 Remove upper bushing from flexible arm Note View of completely disassembled gooseneck assembly and wire harness 15 To remove pole from base remo...

Страница 19: ...sassembly and Repair Section 4 LS 135 150 Service Manual 443194 Rev B Welch Allyn Exam Light 7 16 Disconnect ground 17 Disconnect harness 18 Remove 5 screws from base Remove top cover LS 135 Floor Mod...

Страница 20: ...pplication Fuse Part 44300 DOM 6 236706 3114 44302 EUR 236706 3112 44303 JAP 488307 4 44304 UK 236706 3112 44306 AUST 236706 3112 NOTE View of transformer domestic LS 135 Pole Model See APPENDIX C for...

Страница 21: ...exam lamp is similar to the 135 floor model The heads are identical in every way The major difference is the transformer mod ule and one continuous cord running from it up to the head 19 Remove philli...

Страница 22: ...Section 4 Disassembly and Repair 10 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B 22 Unplug lamp 23 Remove lamp head by removing 5 screws 24 Remove housing LS 135 Wall Model...

Страница 23: ...d stand LS 135 Install switch according to this photo Note wire tie and placement of wire behind standoff Reassembly Note NOTE wire switch connections and placement of wire behind standoff white wire...

Страница 24: ...Repair 12 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B Note The removal of bushing from wall mount bracket 27 Remove bushing from mounting plate 26 Remove the hex nut to remove mounti...

Страница 25: ...should be reinstalled toward mounting plate Note The wiring route to switch trans former Note The wire color codes and orienta tion strain relief tie wrap to secure wires See Appendix C WIRING DIA GR...

Страница 26: ...am Light LS 135 150 Service Manual 443194 Rev B NOTE Complete parts package for LS150 table wall mount 1 Completely unscrew to remove nose assembly from head NOTE Notice wiring connections to power sw...

Страница 27: ...anual 443194 Rev B Welch Allyn Exam Light 15 2 Completely unscrew hex nut to remove flexible arm NOTE Make sure bushing with X marks are reinstalled toward hex nut NOTE Bushing with X indicator marks...

Страница 28: ...ction 4 Disassembly and Repair 16 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B 3 Remove bushing from mounting plate NOTE Notice the wiring routing and wire connections LS 150 Wall Mod...

Страница 29: ...135 150 Service Manual 443194 Rev B Welch Allyn Exam Light 17 NOTE Disassembly of LS 150 Floor model 1 Loosen the screw that secures the lamp nose assembly 2 Lift lamp nose assembly 3 Release the lamp...

Страница 30: ...and Repair 18 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B 4 Unplug lamp 5 Remove lamp head by removing 5 screws NOTE Notice wiring connections to power switch PCB and wiring orientat...

Страница 31: ...de screwdriver to pry the tabs of pole then pull gooseneck bushing out Reassembly Note Press the tabs back in with a blunt object A screwdriver handle is shown below 7 Remove both pins from connector...

Страница 32: ...d Repair 20 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B NOTE The gooseneck with wiring and connector removed 8 Use 3 32 hex key to remove screw 9 Remove snap ring from upper flex bus...

Страница 33: ...air Section 4 LS 135 150 Service Manual 443194 Rev B Welch Allyn Exam Light 21 10 Remove upper bushing from flexible arm 11 To remove pole from base remove screw and bottom plate 12 Disconnect ground...

Страница 34: ...Rev B 13 Disconnect harness 14 Pull bottom pole from base NOTE When reassembling the pole back into the base make sure wires fit into the base channel 15 Remove both pins with a pin removal tool NOTE...

Страница 35: ...150 Service Manual 443194 Rev B Welch Allyn Exam Light 23 NOTE The wire and connector removed from the pole 16 Remove 5 screws from base then remove top cover NOTE Notice transformer and how wiring i...

Страница 36: ...Repair 24 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B NOTE Notice the fuses and connector and how the wiring is routed See the repair parts lists for proper fuse according to your c...

Страница 37: ...43103 PLATE HEAT DIFFUSER 22 488077 Lamp Connector LS 135 23 443017 5 LAMP HSG TOP LS 135 24 443032 SWITCH SPOT POWER 35W 25 443069 35 WATT LAMP 26 455508 Ground Label Base LS 135 150 27 106124 44 8 3...

Страница 38: ...APPING SCREW 50 55 443157 SLIT TUBING CUT 56 440107 WALL MOUNT BRACKET 57 106113 10 10 32 X 312 HX DR SET SCREW 58 443059 501 GOOSENECK ASSY W END BUSHINGS 59 106124 18 8 X 1 25 SELF TAPPING SCREW 60...

Страница 39: ...81 445014 501 Fan Assembly LS 150 82 488082 MOLEX CONNECTOR 83 443101 WIREHARNESS Goose neck LS 150 Floor 84 443190 CAUTION LABEL 85 445017 WIRE HARNESS SW RECT BD 50W 86 106124 40 6 X 625 PLASTITE L...

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Страница 51: ...Welch Allyn Exam Light 1 LS 135 150 Service Manual 443194 Rev B Electrical Schematics Appendix C LS 135...

Страница 52: ...2 Welch Allyn Exam Light LS 135 150 Service Manual 443194 Rev B Appendix C Electrical Schematics LS 150...

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