Lincoln Electric LN-9 GMA, LN-9F GMA manual Controls and Settings

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OPERATION

CONTROLS AND SETTINGS

Operator controls for LN-9 GMA models are shown in Figure B.3. Controls for LN-9F models are shown in Figure B.4. Refer to these figures and the following descriptions of the controls.

ELECTRODE POLARITY SWITCH: The polarity switch is located inside the wire drive section on the LN-9 GMA model and on the front panel of both the LN-9F GMA 2-Roll and 4-Roll control box. Set the switch to the same polarity as the electrode lead con- nection to the power source. If the switch is not set for the correct polarity, the wire feeder will stop weld- ing shortly after the arc is struck. See the topic "Automatic Shutdown" later in this section of the manual.

WIRE FEED DIRECTION SWITCH: The direction switch is located inside the wire drive section on the LN-9 GMA model and on the front panel of both the LN-9F GMA 2-Roll and 4-Roll control box. This switch permits the wire to be fed in either direction when the trigger is pressed or when using the cold inch switch feature of the K418 and K419 options. Be sure this switch is set for forward feed when you are ready to weld.

HOT-COLD TRIGGER INTERLOCK SWITCH: This switch is located on the front rail on the LN-9 GMA model and on the front panel of both the LN-9F GMA 2-Roll and 4-Roll control box. The three-position switch serves a dual purpose:

1."Hot-Cold" Wire Feed - In the center position the wire will be electrically cold when feeding with the gun trigger. In either the up or down positions the wire will be "hot" when feeding with the gun trigger.

2.Trigger Interlock Function - In the down position the trigger interlock will be OFF, allowing the gun trigger to function in the normal mode. This stops wire feed and welding when the trigger is released. In the up position the trigger interlock will be ON.

The trigger interlock feature functions as follows:

a)When you are not welding, the trigger will function in the normal mode, which feeds only when the trigger is closed.

b)Once the welding arc has been struck, the gun trig- ger may be released. Welding will continue until one of the following occurs:

•The arc is extinguished by quickly pulling the gun away from the work.

or

•The trigger is again depressed and released. (This feature is not on earlier versions unless the L7265-1 PM Power Board has been replaced with a superceded version.)

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

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Contents Safety Depends on You LN-9 GMA and LN-9F GMA Wire FeederSafety Electric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionPrécautions DE Sûreté Thank You TAbLE of Contents TAbLE OF CONTENTS cont’d P127, P125, P107 & P289 Series ViiiSection E Section FTechnical Specifications LN-9 GMA and LN-9F GMA Wire FeederWidth Height Mounting the Unit Installing the LN-9 GMA Roll and 4-ROLL ModelsAttaching the Wire Reel Stand Mounting the Wire Feed UnitPower Input CAbLE ASSEMbLY Electrical Connections LN-9 GMA and LN-9F GMARouting the Electrode Figure A.3 LN-9F GMA Control bOX Figure A.2 Strain Relief ClampInstallation 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 Direct Work Lead Connection Machine GroundingFor GMA GUN CAbLES Connecting the GUN CAbLE to the Wire FeederCylinder may explode if damaged Hooking UP GMA Shielding GASOperating Instructions Safety PrecautionsK436 LN-9F GMA 2-ROLL and K583-1 LN-9F GMA 4-ROLL General DescriptionRecommended Processes and Equipment K424 LN-9 GMA 2-ROLL and K568-1 LN-9 GMA 4-ROLLDC Constant Voltage Power Sources Controls and Settings Operation Operation Circuit bREAKER Power Supply FuseCircuit Protection and Automatic Shutdown Avoiding Grounding Lead Protector GLP ShutdownAutomatic Shutdown Changing Drive Rolls for 2-ROLL Wire Feeders Drive Roll InstallationGuide Tube Detail Changing Drive Rolls for 4-ROLL Wire Feeders Large Figure b.7a Threaded Locking Collar Wire LoadingFeeding Electrode and bRAKE Adjustment Loading a 50-60 Lb .7-27.2 KG. Coil Using K1504-1 Coil ReelLoading a 50 or 60 Lb. Coil ADJUSTAbLE Wire Reel bRAKEInnershield Coils K378 Reel Mounting Stand Loading and Feeding 13-14 LbIdle Roll Pressure Setting Roll Wire FeedersFor TWO-ROLL Feeders Pressure Adjustment Knob DC-250, DC-400, or DC-600 Adjust the Power SourceAdjust the LN-9 GMA Controls Pulse Power 500, DC650 PRO CV-400, CV-500-ISelect Acceleration Starting CharacteristicsRUN-IN Feature Voltage Control ResponseProcedure AT END of Coil Security of Weld Procedure SettingsMaking a Weld Auxiliary Equipment Contacts Optional Equipment and AccessoriesPower Input CAbLE ASSEMbLIES K196, K595, K596 Wire Reel Stands and MountingsREADI-REEL Adapters Attaching the Wire Reel StandsWire Reel Door KIT Spindle for READI-REELS and 2 I.D. Spools K162-HUniversal Wire Reel Stand K1524-1 BURNbACK Timer KIT K419 Wire Feeder AccessoriesPulse Power Filter Conversion KIT K442-1 GMA Timer KIT K418Dual Process KIT K317 For Wire Feeders Dual Procedure KIT K319K320 Flux Tank Loading Swivel Platform K178-1Undercarriage K163 Continuous Flux Feed Tank K320K58 Magnetic Separator Aluminum Electrode TAbLE C.2 Drive Roll and Guide TUbE KitsKit Roll Solid Steel Electrode Cored ElectrodeAdapter Routine MaintenancePeriodic Maintenance Coils with 1 SpindleFigure D.1 Speed Sensor Module Location Proper Speed Sensor Module MountingFigure D.2 Switch Requirements Figure D.2 LN-9 GMA ConnectorsTROUbLESHOOTING Wire Feeding PRObLEMS TROUbLESHOOTING GuideGun trigger will not feed wire. Digital meter is not lit Grounding Lead Protector Shutdown in the Operation section TROUbLESHOOTING Welding PRObLEMS Starting Characteristics Wire LN-9 GMA WIRINGLN-9F GMA LN-9 GMA Dimension Print LN-9F GMA Dimension Print 1 Wire Drive Unit Control bOX LN-9F Dimension Print 2Page Precaucion Keep your head out of fumes LN-9 GMA Wire Feeder
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