E-2

 

TROUBLESHOOTING

 

 

E-2

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

PROBLEMS

 

POSSIBLE

 

RECOMMENDED

 

 

 

 

 

 

 

 

(SYMPTOMS)

 

CAUSE

 

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

 

 

 

 

 

 

2.

the Welding passes.

 

 

 

 

 

 

Improper movement of the elec-

 

 

 

 

 

 

 

trode.

 

 

 

 

Insufficient penetration

1.

High progression speed.

 

 

 

 

 

 

2.

Welding current too low.

 

 

 

 

 

 

3.

Narrow chamfering.

 

If all recommended possible areas of

 

Sticking

 

1.

Arc too short.

 

 

 

 

misadjustment have been checked

 

 

 

2.

Current too low.

 

and the problem persists, Contact

 

 

 

 

 

 

your local Lincoln Authorized Field

 

Porosity

 

1.

Humidity in electrode.

 

 

 

 

Service Facility.

 

 

 

 

2.

Long arc.

 

 

 

Cracks

 

1.

Current too high.

 

 

 

 

 

 

2.

Dirty materials.

 

 

 

 

 

 

3. Hydrogen in weld (present on

 

 

 

 

 

 

 

electrode coating).

 

 

 

CAUTION

If for any reason you do not understand 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.

V310-T AC/DC TIG

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Lincoln Electric IM958 manual Troubleshooting, Possible, Symptoms Cause, Problems in Stick Welding, Service Facility