Lincoln Electric ACTIV8 11770 Service Manual
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Lincoln Electric ACTIV8 11770 Service Manual

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ACTIV8
™
For use with machines having Code Numbers:
11770, 12198
SERVICE MANUAL
SVM237-A
| Issue D ate 13-Jul
© Lincoln Global, Inc. All Rights Reserved.
NOTE: This manual will cover most of the troubleshooting and repair
procedures for the code numbers listed. Some variances may exist when
troubleshooting/repairing later code numbers.

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  • Page 1 NOTE: This manual will cover most of the troubleshooting and repair procedures for the code numbers listed. Some variances may exist when troubleshooting/repairing later code numbers. ACTIV8 ™ For use with machines having Code Numbers: 11770, 12198 SERVICE MANUAL SVM237-A | Issue D ate 13-Jul ©...
  • Page 2 Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
  • Page 3 SAFETY ELECTRIC SHOCK can kill. ARC RAYS can burn. 3.a. The electrode and work (or ground) circuits 4.a. Use a shield with the proper filter and cover are electrically “hot” when the welder is on. plates to protect your eyes from sparks and Do not touch these “hot”...
  • Page 4 SAFETY WELDING and CUTTING CYLINDER may explode SPARKS can cause fire or if damaged. explosion. 7.a. Use only compressed cylinders containing the correct shielding gas for the 6.a. Remove fire hazards from the welding area.If process used and properly operating this is not possible, cover them to prevent the welding sparks regulators designed for the gas and from starting a fire.
  • Page 5 SAFETY 6. Eloigner les matériaux inflammables ou les recouvrir afin de PRÉCAUTIONS DE SÛRETÉ prévenir tout risque dʼincendie dû aux étincelles. Pour votre propre protection lire et observer toutes les instructions 7. Quand on ne soude pas, poser la pince à une endroit isolé de et les précautions de sûreté...
  • Page 6 2004/108/EC. It was manufactured in conformity with a national standard that implements a harmonized standard: EN 60974-10 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment. It is for use with other Lincoln Electric equipment. It is designed for industrial and professional use. Introduction All electrical equipment generates small amounts of electromagnetic emission.
  • Page 7 SAFETY Electromagnetic Compatibility (EMC) The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the boundaries of the premises. Methods of Reducing Emissions Mains Supply Welding equipment should be connected to the mains supply according to the manufacturerʼs recommen- dations.
  • Page 8 - MASTER TABLE OF CONTENTS FOR ALL SECTIONS - Page Safety ................i-vi Installation .
  • Page 9 TABLE OF CONTENTS-THEORY OF OPERATION SECTION Theory of Operation ..............E-1 General Description .
  • Page 10 THEORY OF OPERATION FIGURE E.2 - GENERAL DESCRIPTION VOLTAGE SUPPLY 667A POWER SOURCE VOLTAGE WORK 21 SUPPLY 15-110VDC ELECTRODE CABLE FILTER BOARD BRIDGE CONTACTOR & SOLENOID CONTROL RECTIFIER CONTACTOR 667B GAS SOLENOID WORK CABLE WIRE FEED SPEED FEEDPLATE POTENTIOMETER POWER POLARITY RPM FEEDBACK SUPPLY...
  • Page 11 THEORY OF OPERATION FIGURE E.3 - CONTROL CIRCUIT OPERATION VOLTAGE SUPPLY 667A POWER SOURCE VOLTAGE WORK 21 SUPPLY 15-110VDC ELECTRODE CABLE FILTER BOARD BRIDGE CONTACTOR & SOLENOID CONTROL RECTIFIER CONTACTOR 667B GAS SOLENOID WORK CABLE WIRE FEED SPEED FEEDPLATE POTENTIOMETER POWER POLARITY RPM FEEDBACK...
  • Page 12 THEORY OF OPERATION FIGURE E.4 - TRIGGER CIRCUIT VOLTAGE SUPPLY 667A POWER SOURCE VOLTAGE WORK 21 SUPPLY 15-110VDC ELECTRODE CABLE FILTER BOARD BRIDGE CONTACTOR & SOLENOID CONTROL RECTIFIER CONTACTOR 667B GAS SOLENOID WORK CABLE WIRE FEED SPEED FEEDPLATE POTENTIOMETER POWER POLARITY RPM FEEDBACK SUPPLY...
  • Page 13 THEORY OF OPERATION FIGURE E.5 - FEEDBACK AND CONTROL CIRCUITS VOLTAGE SUPPLY 667A POWER SOURCE VOLTAGE WORK 21 SUPPLY 15-110VDC ELECTRODE CABLE FILTER BOARD BRIDGE CONTACTOR & SOLENOID CONTROL RECTIFIER CONTACTOR 667B GAS SOLENOID WORK CABLE WIRE FEED SPEED FEEDPLATE POTENTIOMETER POWER POLARITY...
  • Page 14 NOTES ACTIV8™...

  • Page 15: Table Of Contents

    TABLE OF CONTENTS - TROUBLESHOOTING AND REPAIR Troubleshooting and Repair ............. .F-1 How to Use Troubleshooting Guide .

  • Page 16: Troubleshooting And Repair

    HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

  • Page 17: Pc Board Troubleshooting Procedures

    Do not touch electrically hot parts. - If you return a PC board to The Lincoln Electric Company for credit, it must be in the static-shielding bag. This will prevent further damage and allow prop- CAUTION er failure analysis.
  • Page 18 3. Perform the Contactor Test, replace if necessary. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. ACTIV8™...
  • Page 19 3. Perform the Control Board Test. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. ACTIV8™...
  • Page 20 CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. ACTIV8™...
  • Page 21 Test, replace if necessary. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. ACTIV8™...
  • Page 22 NOTES ACTIV8™...

  • Page 23: Case Cover Removal And Replacement Procedure

    CASE COVER REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 24 TROUBLESHOOTING AND REPAIR F-10 F-10 CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.1 – CASE COVER REMOVAL SPINDLE BOLT CASE SCREWS CASE CASE SCREWS INNER MODULE SPINDLE HARDWARE SPINDLE CASE SCREWS SPINDLE BOLT HARDWARE LOCKNUTS CASE SCREWS REMOVAL PROCEDURE 4.
  • Page 25 TROUBLESHOOTING AND REPAIR F-11 F-11 CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.2 – INNER MODULE ITEM 6 #10 SPEED CLIP INNER MODULE FIGURE F.3 – SPINDLE BOLT REPLACEMENT SPINDLE BOLT REPLACEMENT CASE WASHER LOCKWASHER CASE RECESSED AREA INNER MODULE ACTIV8™...
  • Page 26 TROUBLESHOOTING AND REPAIR F-12 F-12 CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.4 – SPINDLE AND HARDWARE REPLACEMENT SPINDLE BOLT KEYED WASHER SPINDLE SPRING WING NUT FRICTION WASHER PLAIN WASHER FIGURE F.5 – CASE COVER SCREW LOCATIONS ITEM 1 #10-24 X .50 SCREW ITEM 2 #10-24 LOCKNUT...
  • Page 27 TROUBLESHOOTING AND REPAIR F-13 F-13 CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.6 – CASE COVER SCREW LOCATIONS ITEM 3 #10-24 X 1.00 SELF DRILLING SCREW ITEM 3 #10-24 X 1.00 SELF DRILLING SCREW ITEM 5 #10 PLAIN WASHER ITEM 4 #10 LOCK WASHER ITEM 3...
  • Page 28 TROUBLESHOOTING AND REPAIR F-14 F-14 CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Position the inner module into the case. 5. Using a 5/16” nutdriver, attach the two screws and locknuts previously removed to the case 2. Position spindle bolt in recessed area on case and inner module.

  • Page 29: Gas Solenoid Test

    GAS SOLENOID TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 30 TROUBLESHOOTING AND REPAIR F-16 F-16 GAS SOLENOID TEST (continued) FIGURE F.8 – GAS SOLENOID LOCATION LEAD LEAD GAS HOSE CONNECTION SOLENOID PROCEDURE 6. If the 4VDC is missing or low, check the leads WARNING and connections between the solenoid and the ELECTRIC SHOCK can kill.

  • Page 31: Contactor Test

    CONTACTOR TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 32 TROUBLESHOOTING AND REPAIR F-18 F-18 CONTACTOR TEST (continued) FIGURE F.9 – CONTACTOR LOCATION CONTACTOR PROCEDURE 6. If the 3VDC is missing or low, check the leads WARNING and connections between the contactor and the control board. See Wiring Diagram. If the leads ELECTRIC SHOCK can kill.

  • Page 33: Drive Motor And Tach Feedback Test

    DRIVE MOTOR AND TACH FEEDBACK TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 34 TROUBLESHOOTING AND REPAIR F-20 F-20 DRIVE MOTOR AND TACH FEEDBACK TEST (continued) FIGURE F.10 – DRIVE MOTOR AND TACH LOCATION MOTOR GEAR BOX AND TACHOMETER PROCEDURE 6. Check for 1.5 ohms of resistance between the WARNING black and white leads. Also make sure there is ELECTRIC SHOCK can kill.

  • Page 35: Motor Overload Test

    MOTOR OVERLOAD TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 36 TROUBLESHOOTING AND REPAIR F-22 F-22 MOTOR OVERLOAD TEST (continued) FIGURE F.11 – MOTOR AND TACH LOCATION MOTOR GEAR BOX AND TACHOMETER PROCEDURE 5. With the trigger activated and the motor running WARNING check the motor armature current. Normal armature current is less then 3 amps. ELECTRIC SHOCK can kill.

  • Page 37: Diode Bridge Tests

    DIODE BRIDGE TESTS WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 38 TROUBLESHOOTING AND REPAIR F-24 F-24 DIODE BRIDGE TESTS (continued) FIGURE F.12 – DIODE BRIDGE LOCATION DIODE BRIDGE ACTIVE DIODE BRIDGE TEST 5. Check for the proper output on leads 621 nega- WARNING tive and 67B positive. The voltage should be the same as the input voltage at 667A and 621.
  • Page 39 TROUBLESHOOTING AND REPAIR F-25 F-25 DIODE BRIDGE TESTS (continued) FIGURE F.13 – ACTIVE DIODE BRIDGE TEST 667A (OUTPUT) (INPUT) WORK A (WORK B) (INPUT) WORK C (OUTPUT) (WORK CLIP) PASSIVE DIODE BRIDGE TEST 6. Verify values in Table F.1 and confirm the WARNING expected results.
  • Page 40 TROUBLESHOOTING AND REPAIR F-26 F-26 PASSIVE DIODE BRIDGE TESTS (continued) FIGURE F.14 – PASSIVE DIODE BRIDGE TEST 8. If Bridge is faulty, replace it. 9. Perform the Case Cover Replacement Procedure. 10. Perform the Retest After Repair Procedure. ACTIV8™...

  • Page 41: Control Board Test

    CONTROL BOARD TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 42 TROUBLESHOOTING AND REPAIR F-28 F-28 CONTROL BOARD TEST (continued) FIGURE F.15 – 5-PIN AMPHENOL PROCEDURE 5. Measure the input voltage at the control board WARNING lead 667B on plug J5-1 and lead 621 on plug J5-8. This voltage should be the same as the ELECTRIC SHOCK can kill.
  • Page 43 TROUBLESHOOTING AND REPAIR F-29 F-29 CONTROL BOARD TEST (continued) FIGURE F.16 – CONTROL BOARD PLUG LOCATIONS FP POWER DZ12 DZ17 DZ18 9. Measure the drive motor voltage at leads 551 13. If faulty, perform the Control Board Removal on plug J4-2 and 550 on plug J4-1. The expect- And Replacement Procedure.
  • Page 44 NOTES F-30 F-30 ACTIV8™...

  • Page 45: Wire Feed Speed Potentiometer Test

    WIRE FEED SPEED POTENTIOMETER TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 46 TROUBLESHOOTING AND REPAIR F-32 F-32 WIRE FEED SPEED POTENTIOMETER TEST (continued) FIGURE F.17 – WIRE FEED SPEED POTENTIOMETER TEST POINTS 575A WIRE FEED 576A SPEED CONTROL 10K/2W POTENTIOMETER 577A 577A 0 VDC MIN. WFS 5 VDC MIN. WFS PROCEDURE 5. Check for 0VDC minimum to 5VDC maximum WARNING between wires 577 and 576.

  • Page 47: Contactor Removal And Replacement

    CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 48 TROUBLESHOOTING AND REPAIR F-34 F-34 CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.18 – CONTACTOR LOCATION CONTACTOR REMOVAL PROCEDURE 5. Using a 17mm nutdriver, disconnect outer con- WARNING tactor nut and remove outer buss bar. Figure F.19. Note washer placement for ELECTRIC SHOCK can kill.
  • Page 49 TROUBLESHOOTING AND REPAIR F-35 F-35 CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.19 – CONTACTOR REMOVAL INNER BUSS INNER MOUNTING BAR BOLT BUSS BLOCK CONTACTOR MOUNTING OUTER BLOCK BUSS BOLT FIGURE F.20 – CONTACTOR MOUNTING SCREWS LOCATION CONTACTOR MOUNTING SCREWS (4) ACTIV8™...
  • Page 50 TROUBLESHOOTING AND REPAIR F-36 F-36 CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Carefully position new contactor into the 7. Connect the previously removed in-line contac- machine. tor leads. See Wiring Diagram. 2. Using a 3/4” nutdriver, loosely connect the inner 8.

  • Page 51: Wire Drive Motor And Gear Box Removal And Replacement

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 52 TROUBLESHOOTING AND REPAIR F-38 F-38 WIRE DRIVE MOTOR AND GEAR BOX REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.21 – WIRE DRIVE MOTOR AND GEAR BOX LOCATION MOTOR GEAR BOX AND TACHOMETER WIRE DRIVE REMOVAL PROCEDURE 5. Using pliers, release tension on the hose clamp WARNING and disconnect gas hose from the drive motor.
  • Page 53 TROUBLESHOOTING AND REPAIR F-39 F-39 WIRE DRIVE MOTOR AND GEAR BOX REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.22 – BUSS BAR AND GAS HOSE CONNECTIONS HOSE BUSS BAR BOLT FIGURE F.23 – WIRE DRIVE REMOVAL COLLAR & WASHER PLASTIC DRIVE GEAR COVER MOTOR GEAR BOX...
  • Page 54 TROUBLESHOOTING AND REPAIR F-40 F-40 WIRE DRIVE MOTOR AND GEAR BOX REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.24 – WIRE DRIVE MOUNTING SCREWS LOCATION MOTOR GEAR BOX AND TACHOMETER WIRE DRIVE MOUNTING SCREWS REPLACEMENT PROCEDURE 8. Using pliers, release tension on the hose clamp and slide into position to secure the gas hose to 1.

  • Page 55: Control Board And Motor Filter Board Removal And Replacement

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 56 TROUBLESHOOTING AND REPAIR F-42 F-42 CONTROL BOARD AND MOTOR FILTER BOARD REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.25 – CONTROL BOARD AND MOTOR FILTER BOARD LOCATION MOTOR FILTER PC BOARD CONTROL BOARD REMOVAL PROCEDURE 5. Label and disconnect plugs J2, J3, J4, J5 and WARNING J6 from the Control Board.
  • Page 57 TROUBLESHOOTING AND REPAIR F-43 F-43 CONTROL BOARD AND MOTOR FILTER BOARD REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.26 – CONTROL BOARD CONNECTIONS FP POWER DZ12 MOUNTING MOUNTING DZ17 DZ18 NUTS NUTS FIGURE F.27 – MOTOR FILTER BOARD CONNECTIONS MOUNTING SCREW MOUNTING SCREW ACTIV8™...
  • Page 58 TROUBLESHOOTING AND REPAIR F-44 F-44 CONTROL BOARD AND MOTOR FILTER BOARD REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Gently place the new motor filter board into position. 2. Using a phillips screwdriver, attach the two pre- viously removed screws securing the board. 3.

  • Page 59: Gas Solenoid Removal And Replacement

    GAS SOLENOID REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 60 TROUBLESHOOTING AND REPAIR F-46 F-46 GAS SOLENOID REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.28 – GAS SOLENOID LOCATION SOLENOID REMOVAL PROCEDURE 5. Using pliers, release tension on the hose clamp WARNING and remove the gas hose. Be careful not to damage the hose.
  • Page 61 TROUBLESHOOTING AND REPAIR F-47 F-47 GAS SOLENOID REMOVAL AND REPLACEMENT PROCEDURE (continued) FIGURE F.29 – GAS SOLENOID CONNECTIONS LEAD LEAD GAS HOSE CONNECTION REPLACEMENT PROCEDURE 1. Carefully position new solenoid in machine. 2. Using a hammer and slotted screwdriver, gently tap counter-clockwise on lock nut to secure solenoid in place.
  • Page 62 TROUBLESHOOTING AND REPAIR F-48 F-48 RETEST AFTER REPAIR Retest a machine : • If it is rejected under test for any reason that requires you to remove any part which could affect the machineʼs electrical char- acteristics. • If you repair or replace any electrical components. SET UP 1.
  • Page 63 NOTES F-49 F-49 ACTIV8™...
  • Page 64 TABLE OF CONTENTS - DIAGRAM SECTION Electrical Diagrams ..............G-1 Wiring Diagram (G7018) .
  • Page 65 ElECTriCal DiaGramS WiriNG DiaGram - COmplETE maChiNE - CODE 11770 (G7018) WIRINGDIAGRAM - ACTIV8 TRIGGER WORK C WORKB 509B COLD INTERLOCK / CC / CV 509A FEED / TO WORK CLIP 2 STEP BRIDGE RECTIFIER PURGE 509A N.B. N.B. 667A N.B.
  • Page 66 ElECTriCal DiaGramS SChEmaTiC - COmplETE maChiNE - CODE 11770 (G7195) ENGINEERING CONTROLLED REVISED MOTOR MEASURED VALUES CHANGE DETAIL: When tach feed back is lost, Start-Up ACTIV8 WIRE FEEDER MANUFACTURER: the voltage to the motor is a On power-up, the ACTIV8 will light the motor thermal LED and constant 10VDC.
  • Page 67 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
  • Page 68 ElECTriCal DiaGramS SChEmaTiC - CONTrOl BOarD - CODE 11770 (G4783-1C0 pG 1) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...
  • Page 69 ElECTriCal DiaGramS SChEmaTiC - CONTrOl BOarD - CODE 11770 (G4783-1C0 pG 2) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...
  • Page 70 ElECTriCal DiaGramS SChEmaTiC - CONTrOl BOarD - CODE 11770 (G4783-1C0 pG 3) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...
  • Page 71 ElECTriCal DiaGramS SChEmaTiC - CONTrOl BOarD - CODE 11770 (G4783-1C0 pG 4) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...
  • Page 72 ElECTriCal DiaGramS SChEmaTiC - CONTrOl BOarD - CODE 11770 (G4783-1C0 pG 5) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...
  • Page 73 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
  • Page 74 G-11 G-11 ElECTriCal DiaGramS SChEmaTiC - mOTOr FilTEr BOarD - CODE 11770 (S27505-1C0) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. aCTiV8™...

This manual is also suitable for:

Activ8 12198

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