Lincoln Electric K1780-1 manual Troubleshooting

Page 22

 

E-4

 

 

 

 

TROUBLESHOOTING

 

 

E-4

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

PROBLEMS

 

 

POSSIBLE CAUSE

 

RECOMMENDED

 

 

 

 

 

 

 

 

 

(SYMPTOMS)

 

 

COURSE OF ACTION

 

 

Tip seizes in diffuser.

 

 

 

1.

Tip overheating due to pro-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

longed or excessive high current

 

 

 

 

 

 

 

 

 

 

 

and/or duty cycle welding.

 

 

 

 

 

 

 

 

 

 

Note: A light application of high

 

 

 

 

 

 

 

 

 

 

 

temperature antiseize lubri-

 

 

 

 

 

 

 

 

 

 

 

cant (such as Lincoln E2067

 

 

 

 

 

 

 

 

 

 

 

Graphite Grease) may be

 

 

 

 

 

 

 

 

 

 

 

applied to tip of threads.

 

 

 

 

 

Motor does not turn when trigger is

1.

The wire drive motor may be

 

 

 

 

 

 

pulled.

 

 

 

2.

overloaded.

 

 

 

 

 

 

 

 

 

 

Fault occurred

 

 

 

 

 

The drive motor does not turn

1.

Fault occurred

 

If all recommended possible areas

 

although arc voltage is present and

 

 

 

 

 

 

the gas solenoid is on.

 

 

 

 

 

 

 

 

of misadjustment have been

 

 

 

 

 

 

 

 

 

 

 

checked and the problem persists,

 

No control of wire feed speed

1.

Damaged leads to the motor

 

Contact your local Lincoln

 

 

Authorized Field Service Facility.

 

motor. Gas solenoid operates

 

tachometer.

 

 

properly and arc voltage is present.

2.

Damaged tachometer.

 

 

 

 

 

Wire feed speed can be set through

 

 

 

 

 

ArcLink but WFS is erratic.

 

 

 

 

 

 

 

 

 

Wire feed motor turns and gas sole-

1.

Power source is unable to pro-

 

 

 

 

 

noid operates, but no arc voltage is

 

vide arc voltage because of ther-

 

 

 

 

 

present.

 

 

 

 

mal shutdown or other failure.

 

 

 

 

 

Speed does not change when weld

1.

Run-in and weld speeds are set

 

 

 

 

 

current flows.

 

 

 

2.

to the same value.

 

 

 

 

 

 

 

 

 

 

Fault occurred

 

 

 

 

 

Erratic arc length, especially with a

1.

The work sense lead (#21) or the

 

 

 

 

 

 

pulse or STT program. Welding

 

electrode sense lead (#67) may

 

 

 

 

 

may or may not vary from normal

 

have intermittent or poor connec-

 

 

 

 

 

procedure. Wire feeds properly.

2.

tions.

 

 

 

 

 

 

 

 

 

 

Improper power source selection

 

 

 

 

 

 

 

 

 

 

3.

on the control P.C. board.

 

 

 

 

 

 

 

 

 

 

Welding Program Error.

 

 

 

 

 

Wire feed speed is consistent and

1.

DIP switch is incorrectly set for

 

 

 

 

 

adjustable, but operates at the

 

the wrong wire drive or gear

 

 

 

 

 

wrong speed.

 

 

 

2.

ratio.

 

 

 

 

 

 

 

 

 

 

Fault occurred

 

 

 

 

 

 

 

 

 

 

 

CAUTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If for any reason you do not unders

tand the test procedures or are unable to perform the

tests/repairs safely, contact your

 

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

 

 

 

 

 

 

 

 

POWER FEED 10 / R

 

 

 

Image 22
Contents IM689-A Electric Magnetic Fields SafetyFor Engine Califo Rnia Proposition 65 WarningsARC Rays can burn Electric Shock can Kill Fumes and GasesFor Electrically IiiTransformateur ET À Précautions DE SûretéLES Machines À Souder À RedresseurPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationSection C Installation Section aDiagrams Section EInstallation Technical Specifications Power Feed 10 Robotic-K1780-1Electrode and Work Cable CON SAF ETY PrecautionsElectrode Routing NectionsNegative Electrode Polarity Control CableShielding GAS Connection Control Cable ConnectionsSelecting the Proper Gear Ratio SpeedAvailable Cable Assemblies At the disconnect switch Ging the Wire Drive RatioTurn off power to the power source Power Wave 455/RWire Guides Wire Feed Drive Roll KitsProcedure to Install Drive Rolls General GUN Connection GuidelinesGUN Receiver Bushings Conduit Adapters Remote Sense Lead SpecificationsInstallation of Field Installed Non-Lincoln GunsFeed Ing Electrode and Brake Adjustment Drive Roll Pressure SettingRecommended Processes OperationGeneral Description Process LimitationsIonal Equipment AccessoriesOperational Features and Controls Platform CommonalitiesRoutine Maintenance MaintenanceAvoiding Wire Feeding Problems Periodic MaintenanceTroubleshooting HOW to USE Troubleshooting GuidePossible Cause SymptomsProblems RecommendedField Service Facility Possible Cause Recommended Symptoms Course of ActionYour local Lincoln Authorized Troubleshooting Diagrams Power Feed 10 / R Dimension Print Power Feed 10 / R Power Feed 10 / R Ground Aspiración para gases