Lincoln Electric IM794 manual Feeding Problems

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E-3

TROUBLESHOOTING

E-3

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

CAUSE

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEEDING PROBLEMS

 

 

 

 

 

 

No wire feed when gun trigger is

 

 

1. If the wire drive motor is running

 

 

 

 

 

 

pulled. Fan runs, gas flows and

 

 

make sure that the correct drive

 

 

 

 

 

 

machine has correct open circuit

 

 

rolls are installed in the

 

 

 

 

 

 

voltage (33 vcd maximum) – weld

 

 

machine.

 

 

Contact your local Lincoln

 

 

output.

 

 

 

 

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

2. Check for clogged cable liner or

 

 

 

 

 

 

 

 

 

 

contact tip.

 

 

 

 

 

 

 

 

 

 

3. Check for proper size cable liner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and contact tip.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS FLOW PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low or no gas flow when gun

 

 

1. Check gas supply, flow regulator

 

 

 

 

 

 

trigger is pulled. Wire feed, weld

 

 

 

and gas hoses.

 

 

 

Contact your local Lincoln

 

 

output and fan operate normally.

 

 

 

 

 

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

2. Check gun connection to

 

 

 

 

 

 

 

 

 

 

 

machine for obstruction or leaky

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

seals.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP-170T

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Contents SP-170T Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications SP-170TSafety Precautions Identify and Locate ComponentsOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the SP-170T GUN InstallationWork Cable Installation GAS ConnectionInput Connections Figure A.5Line Cord Connection Electrical Input Connection for Rated OutputVolt Input Connection Operation Saftey PrecautionsDesign Features Advantages General DescriptionControls and Settings Welding CapabilityLimitations Wire Loading Welding OperationsSequence of Operation Friction Brake Adjustments Wire ThreadingCleaning Tip And Nozzle Process GuidelinesMaking a Weld Changing Machine Over to Feed Other Wire Sizes Welding with Gmaw MIGOverload Protection Application Chart K586-1 Deluxe Adjustable Gas Regulator & Hose Kit AccessoriesOptional Accessories K549-1 .035 0.9 mm Innershield Welding KitReplacement Parts Factory installed gun liner will feed .025-.035 0.6-0.9mmInnershield Fcaw Conversion Maintenance Maintenance Safety PrecautionsRoutine Maintenance For Magnum 100L GUN GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System Contact Tip Cable Liner Drive RollComponent Replacement Procedures Changing the Contact TIPChanging Drive Roll Changing Liner Liner trim lengthGUN Handle Parts Figure D.3Troubleshooting HOW to USE Troubleshooting GuideProblems Possible Symptoms Cause Recommended Course of ActionFeeding Problems Welding Problems Wiring Diagrams SP-170T Precaucion Warnung