E-2

 

 

 

TROUBLESHOOTING

 

 

E-2

 

Observe all Safety Guidelines detailed throughout this manual

 

 

PROBLEMS

 

 

POSSIBLE CAUSE

 

RECOMMENDED

 

 

 

 

 

 

 

(SYMPTOMS)

 

 

COURSE OF ACTION

 

Rough wire feeding or wire not

 

1. Gun cable kinked and / or twist-

 

 

 

 

 

 

 

 

 

 

 

 

 

feeding but drive rolls are turning.

2.

ed.

 

 

 

 

 

 

 

 

 

 

Wire jammed in gun and cable.

 

 

 

 

 

 

 

 

 

Check for mechanical restric-

 

 

 

 

 

 

 

 

3.

tions in feeding path.

 

 

 

 

 

 

 

 

 

Check for current position of

 

 

 

 

 

 

 

 

 

drive rolls relative to split wire

 

 

 

 

 

 

 

 

4.

guide groove.

 

 

 

 

 

 

 

 

 

 

Drive rolls may not be seated

 

 

 

 

 

 

 

 

5.

properly.

 

 

 

 

 

 

 

 

 

 

Gun cable dirty, clean if neces-

 

 

 

 

 

 

 

 

6.

sary.

 

 

 

 

 

 

 

 

 

 

Worn drive roll.

and/or

 

 

 

 

 

 

 

 

7.

Electrode

rusty

 

 

 

 

 

 

 

 

 

dirty.Cable frayed, or poor sol-

 

 

 

 

 

 

 

 

 

der joint at work or electrode

 

If all recommended possible areas

 

 

 

 

 

lug.

 

 

 

 

 

 

 

8.

Worn nozzle or cable liner.

 

of misadjustment have been

 

 

 

 

 

checked and the problem persists,

 

 

 

 

9.

Replace if necessary.

 

 

Contact your local Lincoln

 

 

 

 

Partially flashed or melted con-

 

Authorized Field Service Facility.

 

 

 

 

 

tact tip. Replace if necessary.

 

 

 

 

 

 

 

 

10. Incorrect drive roll pressure.

 

 

 

 

 

 

 

 

 

Readjust if necessary.

 

 

 

 

 

 

 

 

 

11. Improper liner, tip or inner /

 

 

 

 

 

 

 

 

 

outer guides. Replace if neces-

 

 

 

 

 

 

 

 

 

sary.

 

 

 

 

 

 

 

 

 

 

12. Incorrect wire drive or gear

 

 

 

 

 

 

 

 

 

ratio selection on the control

 

 

 

 

 

 

 

 

 

P.C. board.

 

 

 

 

 

 

Variable or “hunting” arc.

1.

Wrong size, worn and/or melted

 

 

 

 

 

 

 

 

2.

contact tip.

 

 

 

 

 

 

 

 

 

 

Worn work cable or poor work

 

 

 

 

 

 

 

 

3.

connection.

 

 

 

 

 

 

 

 

 

 

Loose electrode or work cable

 

 

 

 

 

 

 

 

 

connections.

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

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Lincoln Electric K1780-1 manual Possible Cause, Symptoms, Problems, Recommended, Course of Action