E-2

TROUBLESHOOTING

E-2

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

PROBLEMS IN STICK WELDING

 

Excessive spatter

1.

Long arc

 

 

2.

High current

 

 

 

 

 

Craters

1.

Fast movement of the electrode

 

 

 

away from piece.

 

 

 

 

 

Inclusions

1.

Poor cleanliness or distribution of

 

 

 

the Welding passes.

 

 

2.

Improper movement of the elec-

 

 

 

trode.

 

 

 

 

 

Insufficient penetration

1.

High progression speed.

 

 

2.

Welding current too low.

 

 

3.

Narrow chamfering.

 

 

 

 

 

Sticking

1.

Arc too short.

 

 

2.

Current too low.

 

 

 

 

 

Porosity

1.

Humidity in electrode.

 

 

2.

Long arc.

 

 

 

 

 

Cracks

1.

Current too high.

 

 

2.

Dirty materials.

 

 

3. Hydrogen in weld (present on

 

 

 

electrode coating).

 

 

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.

CAUTION

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

V205-T DC & V205-T AC/DC TIG

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Lincoln Electric 205-TAC/DCTIG manual Troubleshooting