Lincoln Electric LN-9F GMA manual Routine Maintenance, Periodic Maintenance, Coils with 1 Spindle

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D-1

D-1

MAINTENANCE

SAFETY PRECAUTIONS

WIRE REEL MOUNTING - 50 AND 60 Lb.

COILS WITH 1” SPINDLE

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this maintenance.

•Turn the input supply power OFF at the disconnect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

To prolong the life of the reel shaft, periodically coat it with a thin layer of grease. No maintenance of the two- position adjustable brake is needed. If the brake shoe wears through to metal, replace the brake assembly.

WIRE REEL MOUNTING - READI-REELS AND 10 THROUGH 44 Lb. SPOOLS AND

50AND 60 Lb. COILS WITH K1504-1

ADAPTER

No routine maintenance required. Do not lubricate the 2" spindle.

ROUTINE MAINTENANCE

DRIVE ROLLS AND GUIDE TUbES

After feeding any coil of wire, inspect the drive roll sec- tion. Clean it as necessary. Do not use a solvent for cleaning the idle rolls(s) because it may wash the lubri- cant out of the bearing. The drive roll(s) and guide tubes are stamped with the wire sizes they will feed. If you use a wire size other than that stamped on the rolls, the roll(s) and guide tubes must be changed.

The drive rolls for 0.035 and 0.052 cored electrode and 1/16 through 7/64 electrode have a double set of teeth so they can be reversed for additional life. Drive rolls for 0.023 through 0.052 solid electrodes and aluminum sizes have no teeth, but use two grooves so they also can be reversed for additional life.

See the Operation Section for drive roll installation instructions.

See Table C.2 in the Accessories section for drive roll and guide tube kits.

PERIODIC MAINTENANCE

CONTROL bOX

Every six months open and inspect the control section. The accumulated dirt should be gently blown off all of the electrical components. Be sure the air that is being used is dry. Check the contacts of the large plug-in relay.

A spatter resistant shield protects the digital meter. This shield must always be installed. If it breaks or becomes damaged, replace it by removing the two screws securing its frame, installing a new shield, and reattaching the frame.

WIRE DRIVE MOTOR AND GEAR bOX

Every year examine the gearbox. Paint the gear teeth with molydisulfide-filled grease (Lincoln specification E2322). Do not use a graphite grease.

Check the motor brushes. Replace if they are worn down to 1/4" or less. When ordering feed motor brush- es, give all information from the motor nameplate.

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 Viii Section ESection F P127, P125, P107 & P289 SeriesLN-9 GMA and LN-9F GMA Wire Feeder Technical SpecificationsWidth Height Installing the LN-9 GMA Roll and 4-ROLL Models Attaching the Wire Reel StandMounting the Wire Feed Unit 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 InstructionsGeneral Description Recommended Processes and EquipmentK424 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 Power Supply Fuse Circuit Protection and Automatic ShutdownAvoiding Grounding Lead Protector GLP 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 Adjust the Power Source Adjust the LN-9 GMA ControlsPulse Power 500, DC650 PRO CV-400, CV-500-I DC-250, DC-400, or DC-600Starting Characteristics RUN-IN FeatureVoltage Control Response Select AccelerationSecurity of Weld Procedure Settings Procedure AT END of CoilMaking a Weld Optional Equipment and Accessories Power Input CAbLE ASSEMbLIES K196, K595, K596Wire Reel Stands and Mountings Auxiliary Equipment ContactsAttaching the Wire Reel Stands Wire Reel Door KITSpindle for READI-REELS and 2 I.D. Spools K162-H READI-REEL AdaptersUniversal Wire Reel Stand K1524-1 Wire Feeder Accessories BURNbACK Timer KIT K419GMA Timer KIT K418 Dual Process KIT K317 For Wire FeedersDual Procedure KIT K319 Pulse Power Filter Conversion KIT K442-1 Swivel Platform K178-1 Undercarriage K163 Continuous Flux Feed Tank K320 K320 Flux Tank LoadingK58 Magnetic Separator TAbLE C.2 Drive Roll and Guide TUbE Kits Kit Roll Solid Steel ElectrodeCored Electrode Aluminum ElectrodeRoutine Maintenance Periodic MaintenanceCoils with 1 Spindle 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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