Lincoln Electric IM910 Routine Maintenance, Periodic Maintenance, Calibration Specification

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D-1

MAINTENANCE

D-1

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

• Do not operate with covers removed.

•Turn off power source before installing or servicing.

•Do not touch electrically hot parts.

•Turn the input power to the welding power source off at the fuse box before working in the terminal strip.

•Only qualified personnel should install, use or service this equipment.

ROUTINE MAINTENANCE

Routine maintenance consists of periodically blowing out the machine, using a low pressure airstream, to remove accumulated dust and dirt from inside the feeder.

PERIODIC MAINTENANCE

•Replace the drive rolls and inner wire guide when they are worn.

•Replace the pig tail if the insulation is cut, abraded or damaged.

CALIBRATION SPECIFICATION

All calibration is factory set on the LN-15.

To verify the wire feed speed:

•Assemble a .045 (1.2mm) drive roll kit into the LN- 15.

•Load a spool of .045 (1.2mm) electrode and thread the electrode through the wire drive.

•Adjust the wire feed speed to 300 in/min (7.62m/min).

•Press the COLD INCH switch and measure the actual wire feed speed with a calibrated wire feed speed tachometer.

•The measured wire feed speed should be within 2% of the set value.

To verify the voltage display:

•Set the welding power source and LN-15 to a CV procedure that gives steady "spray" transfer in the arc.

•While a weld is being made, measure the voltage from the feedplate to work.

•The displayed voltage on the LN-15 should be with- in 2% of the measured value.

LN-15 CONTROL CABLE MODEL (CE)

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Contents LN-15 Wire Feeder Safety Depends on YouSafety California Proposition 65 WarningsE C T R I C S H O C K c a n kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’Arc60974-10 Safety Vii Table of Contents Installation Technical Specifications LN-15 K1871-3 CELocation InstallationSafety Precautions High Frequency ProtectionElectrode Connection Power Source ConnectionEngine Drive Power Source Connection Work ConnectionGuns and Cables Assemblies 4INSTALLATIONA-4Connection DIAGRAM, Control Electrode PolarityOnly qualified personnel should perform this operation Procedure to Install Drive Rolls and Wire GuidesFeeding Wire Electrode Safety Precautions OperationGeneral Description Across the ARC Model Figure B.1aLN-15 POWER-UP Sequence WFS Units CV/CC ModeSpring Tension ARM Set the pressure arm as follows See Figure B.2aWire Drive Configuration Cold FEED/GAS Purge SwitchSpindle Brake Step Trigger Interlock SwitchFlow Meter Shielding GAS ConnectionConstant Current Operation Figure B.3Figure B.4 CC Wire Speed Setting Making a Weld Accessories Optional EquipmentPeriodic Maintenance MaintenanceRoutine Maintenance Calibration SpecificationTroubleshooting HOW to USE Troubleshooting GuideContact your local Lincoln Authorized Field Service Facility Contact your local LincolnField Service Facility Your local Lincoln AuthorizedErrors on the Display Fault Code Description Possible AdjustmentsDiagrams LN-15Dimension Print LN-15 Control Cable Model CE Aviso DE Guards off
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