Lincoln Electric LN-9 GMA, LN-9F GMA manual Starting Characteristics

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E-7

E-7

TROUbLESHOOTING

TROUbLESHOOTING GUIDE

Observe Safety Guidelines

detailed in the beginning of this manual.

PRObLEMS (SYMPTOMS)

Poor arc striking with sticking or "blast-offs", weld porosity, narrow and ropy-looking bead, or electrode stubbing into plate while welding.

POSSIbLE AREAS OF

MISADJUSTMENT(S)

WELDING PRObLEMS

1.Verify that the welding techniques or procedures being used are proper. See "Gas Metal Arc Welding Guide" (GS-100), "lnnershield Production Welding Guide" (N675), “Outershield Procedure Guidelines” (GSP-70, GSP-71), “Procedure Guidelines for Pulsed Spray Welding” (GSP- PULSE) or "How To Make Submerged Arc Welders" (S604).

2. Check that	the	wire feed
acceleration setting is proper for
the process.	See	the	topic
“Starting Characteristics" in the
Operation section		for	proper
acceleration setting.

3.Check that the Voltage Control Response is properly set for the power source and process. See the topic "Voltage Control Response" in the Operation section and the appropriate power source connection diagram.

RECOMMENDED

COURSE OF ACTION

If all recommended possible areas of misadjustment have been checked and the problem persists, contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the necessary tests/repairs safely, contact your local authorized field service facility before you proceed.

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 Section E ViiiSection F P127, P125, P107 & P289 SeriesLN-9 GMA and LN-9F GMA Wire Feeder Technical SpecificationsWidth Height Attaching the Wire Reel Stand Installing the LN-9 GMA Roll and 4-ROLL ModelsMounting the Wire Feed Unit Mounting the UnitElectrical Connections LN-9 GMA and LN-9F GMA Power Input CAbLE ASSEMbLYRouting 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 PrecautionsRecommended Processes and Equipment General DescriptionK424 LN-9 GMA 2-ROLL and K568-1 LN-9 GMA 4-ROLL K436 LN-9F GMA 2-ROLL and K583-1 LN-9F GMA 4-ROLLDC Constant Voltage Power Sources Controls and Settings Operation Operation Circuit Protection and Automatic Shutdown Power Supply FuseAvoiding Grounding Lead Protector GLP Shutdown Circuit bREAKERAutomatic 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 LbRoll Wire Feeders Idle Roll Pressure SettingFor TWO-ROLL Feeders Pressure Adjustment Knob Adjust the LN-9 GMA Controls Adjust the Power SourcePulse Power 500, DC650 PRO CV-400, CV-500-I DC-250, DC-400, or DC-600RUN-IN Feature Starting CharacteristicsVoltage Control Response Select AccelerationSecurity of Weld Procedure Settings Procedure AT END of CoilMaking a Weld Power Input CAbLE ASSEMbLIES K196, K595, K596 Optional Equipment and AccessoriesWire Reel Stands and Mountings Auxiliary Equipment ContactsWire Reel Door KIT Attaching the Wire Reel StandsSpindle for READI-REELS and 2 I.D. Spools K162-H READI-REEL AdaptersUniversal Wire Reel Stand K1524-1 BURNbACK Timer KIT K419 Wire Feeder AccessoriesDual Process KIT K317 For Wire Feeders GMA Timer KIT K418Dual Procedure KIT K319 Pulse Power Filter Conversion KIT K442-1Undercarriage K163 Swivel Platform K178-1Continuous Flux Feed Tank K320 K320 Flux Tank LoadingK58 Magnetic Separator Kit Roll Solid Steel Electrode TAbLE C.2 Drive Roll and Guide TUbE KitsCored Electrode Aluminum ElectrodePeriodic Maintenance Routine MaintenanceCoils with 1 Spindle AdapterFigure 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