Lincoln Electric LN-9F GMA, LN-9 GMA manual Changing Drive Rolls for 4-ROLL Wire Feeders

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OPERATION

CHANGING DRIVE ROLLS FOR 4-ROLL WIRE FEEDERS

To change drive rolls on a 4-roll wire feeder, refer to Figure B.6 and perform the following steps.

NOTE: Although an LN-9 GMA model is shown in Figure B.6, the following procedure also applies to LN-9F GMA models.

1.Remove the gun and cable from the conductor block on the feeder by loosening the hand screw and pulling the gun straight out of the block.

2.Open both quick release levers by moving the levers outward and pulling them toward you.

3.Loosen the thumb screws holding the guide tubes in place. Remove the incoming and outgoing guide tubes, if installed.

4.Remove the hex head screws and clamping collars from the output shafts. Remove the drive rolls and middle guide tube, if installed. On new feeders remove the tape and drive keys.

5.The new rolls to be installed are stenciled with the wire size that will be fed. An "A" after the number indicates aluminum wire. Remove the rolls from the kit and wipe them clean. Wipe the output shafts and locating shoulders clean.

6.Install one roll onto either output shaft using the drive key, clamping collar, and hex head screw. Certain size drive rolls consist of two roll halves, and may contain a spacer. If the drive roll you are installing contains a spacer, the spacer fits between the two halves of the drive roll. Tighten the hex head screw.

7.Install the middle guide tube, but do not tighten at this time. When installing a 0.035" middle guide tube the larger radius should be aligned towards the drive roll. Slide the guide tube up against the drive roll.

8.Install the second drive roll on the remaining shaft the same way as the first. Center the middle guide tube between the rolls and tighten the thumb- screws holding it in place.

9.Close and latch both quick release levers.

10.Slide the incoming guide tube into the rear hole of the gearbox until it almost touches the drive roll and guide tube. Tighten the thumbscrew to hold it in place.

11.Install the outgoing guide tube into the front hole of the gearbox (through the conductor block) and tighten the thumb screw. The 0.035 in. outgoing guide tube should have the larger radius oriented toward the drive roll. For proper installation of the outgoing guide tube insert, refer to Figure B.6.

12.Be certain that the guide tubes do not touch the drive rolls or idle rolls. If they do touch, readjust them and tighten in place.

LN-9 GMA and LN-9F GMA Wire Feeder

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Contents LN-9 GMA and LN-9F GMA Wire Feeder Safety Depends on YouSafety Electric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Thank You TAbLE of Contents TAbLE OF CONTENTS cont’d Section F ViiiSection E P127, P125, P107 & P289 SeriesLN-9 GMA and LN-9F GMA Wire Feeder Technical SpecificationsWidth Height Mounting the Wire Feed Unit Installing the LN-9 GMA Roll and 4-ROLL ModelsAttaching the Wire Reel Stand Mounting the UnitElectrical Connections LN-9 GMA and LN-9F GMA Power Input CAbLE ASSEMbLYRouting the Electrode Figure A.2 Strain Relief Clamp Figure A.3 LN-9F GMA Control bOXInstallation Can kill Figure A.5 Connection of LN-9 GMA to DC-600 Power Sources Figure A.6 Connection of LN-9 GMA to DC-1000 Power Sources 75 76 77 Installation Figure A.9 Connection of LN-9 GMA to V300 Power Sources Machine Grounding Direct Work Lead ConnectionConnecting the GUN CAbLE to the Wire Feeder For GMA GUN CAbLESHooking UP GMA Shielding GAS Cylinder may explode if damagedSafety Precautions Operating InstructionsK424 LN-9 GMA 2-ROLL and K568-1 LN-9 GMA 4-ROLL General DescriptionRecommended Processes and Equipment K436 LN-9F GMA 2-ROLL and K583-1 LN-9F GMA 4-ROLLDC Constant Voltage Power Sources Controls and Settings Operation Operation Avoiding Grounding Lead Protector GLP Shutdown Power Supply FuseCircuit Protection and Automatic Shutdown Circuit bREAKERAutomatic Shutdown Drive Roll Installation Changing Drive Rolls for 2-ROLL Wire FeedersGuide Tube Detail Changing Drive Rolls for 4-ROLL Wire Feeders Large Wire Loading Figure b.7a Threaded Locking CollarLoading a 50-60 Lb .7-27.2 KG. Coil Using K1504-1 Coil Reel Feeding Electrode and bRAKE AdjustmentADJUSTAbLE Wire Reel bRAKE Loading a 50 or 60 Lb. CoilLoading and Feeding 13-14 Lb Innershield Coils K378 Reel Mounting StandRoll Wire Feeders Idle Roll Pressure SettingFor TWO-ROLL Feeders Pressure Adjustment Knob Pulse Power 500, DC650 PRO CV-400, CV-500-I Adjust the Power SourceAdjust the LN-9 GMA Controls DC-250, DC-400, or DC-600Voltage Control Response Starting CharacteristicsRUN-IN Feature Select AccelerationSecurity of Weld Procedure Settings Procedure AT END of CoilMaking a Weld Wire Reel Stands and Mountings Optional Equipment and AccessoriesPower Input CAbLE ASSEMbLIES K196, K595, K596 Auxiliary Equipment ContactsSpindle for READI-REELS and 2 I.D. Spools K162-H Attaching the Wire Reel StandsWire Reel Door KIT READI-REEL AdaptersUniversal Wire Reel Stand K1524-1 Wire Feeder Accessories BURNbACK Timer KIT K419Dual Procedure KIT K319 GMA Timer KIT K418Dual Process KIT K317 For Wire Feeders Pulse Power Filter Conversion KIT K442-1Continuous Flux Feed Tank K320 Swivel Platform K178-1Undercarriage K163 K320 Flux Tank LoadingK58 Magnetic Separator Cored Electrode TAbLE C.2 Drive Roll and Guide TUbE KitsKit Roll Solid Steel Electrode Aluminum ElectrodeCoils with 1 Spindle Routine MaintenancePeriodic Maintenance AdapterProper Speed Sensor Module Mounting Figure D.1 Speed Sensor Module LocationFigure D.2 LN-9 GMA Connectors Figure D.2 Switch RequirementsTROUbLESHOOTING TROUbLESHOOTING Guide Wire Feeding PRObLEMSGun trigger will not feed wire. Digital meter is not lit Grounding Lead Protector Shutdown in the Operation section TROUbLESHOOTING Welding PRObLEMS Starting Characteristics LN-9 GMA WIRING WireLN-9F GMA LN-9 GMA Dimension Print LN-9F GMA Dimension Print 1 Wire Drive Unit LN-9F Dimension Print 2 Control bOXPage Precaucion LN-9 GMA Wire Feeder Keep your head out of fumes
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