Lincoln Electric SVM 122-A service manual Troubleshooting Guide, Output Problems

Models: SVM 122-A

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F-4

 

F-4

TROUBLESHOOTING & REPAIR

Observe Safety Guidelines

 

TROUBLESHOOTING GUIDE

detailed in the beginning of this manual.

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

OUTPUT PROBLEMS

 

Major physical or electrical dam-

1. Contact your local authorized

1. Contact the Lincoln Electric

age is evident when the sheet

Lincoln Electric Field Service

Service Department, 216-383-

metal cover(s) are removed.

Facility for technical assistance.

2531 or 1-800-833-9353

 

 

(WELD).

 

 

 

Machine is dead – no output – no

1. Make sure that the input Power

1. Check the Power switch (S1) for

fan – no pilot light.

switch is in the “ON” position.

proper operation.

 

2. Check the three-phase input

2. Check the leads associated

 

voltage at the machine. Input

with the Power switch (S1) and

 

voltage must match the rating

the control transformer (T2) for

 

plate and the reconnect panel.

loose or faulty connections.

 

3. Check for blown or missing

See Wiring Diagram.

 

 

 

fuses in the input lines.

3. Perform the Control Trans-

 

 

former Test.

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

IDEALARC DC-400

LINCOLN ®

ELECTRIC

Page 48
Image 48
Lincoln Electric SVM 122-A service manual Troubleshooting Guide, Output Problems