Lincoln Electric SP-175T manual GAS Flow Problems

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E-3

 

TROUBLESHOOTING

 

 

E-3

 

 

Observe all Safety Guidelines detailed throughout 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 machine.

 

 

 

 

 

 

voltage (33 vcd maximum) – weld

 

 

 

 

 

 

Contact your local Lincoln

 

 

 

output.

 

 

2.

Check for clogged cable liner or

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

 

contact tip.

 

 

 

 

 

 

 

 

 

3.

Check for proper size cable liner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and contact tip.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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-175T

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Contents SP-175T Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Technical Specifications SP-175T InstallationIdentify and Locate Components Safety PrecautionsSelect Suitable Location Work Clamp InstallationOutput Connections StackingWork Cable Installation GUN InstallationConnecting Gun Cable to the SP-175T GAS ConnectionFigure A.5 Input ConnectionsVolt Input Connection Line Cord ConnectionElectrical Input Connection for Rated Output Design Features Advantages Saftey PrecautionsOperation General DescriptionLimitations Controls and SettingsWelding Capability Sequence of Operation Wire LoadingWelding Operations SP-175T Now ready to weld Friction Brake AdjustmentWire Threading Making a Weld Cleaning Tip And NozzleProcess Guidelines Welding with Gmaw MIG Changing Machine Over to Feed Other Wire SizesOverload Protection Application Chart Optional Accessories AccessoriesK586-1 Deluxe Adjustable Gas Regulator & Hose Kit K549-1 .035 0.9 mm Innershield Welding KitInnershield Fcaw Conversion Replacement PartsRoutine Maintenance MaintenanceMaintenance Safety Precautions Configuration of Components in Wire Feeding System GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging the Contact TIP Component Replacement ProceduresLiner trim length Changing LinerGUN Handle Parts HOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Symptoms CauseGAS Flow Problems Welding Problems SP-175T Wiring Diagram Wiring DiagramsSP-175T SP-175T Ground SP-170TWarnung