Lincoln Electric SVM104-A Manual Do Utilizador

The arc starts but sputters
badly. (If cutting expanded
metal, condition may be nor-
mal, see operation section.)

The "MALFUNCTION" or
"FAULT" LED starts blinking
during cutting or gouging. 

Pilot arc is OK but cutting arc
will not establish.

1. Make sure the torch con-

sumables are tight and are in 
good condition.  Replace if 
necessary.

2. Check the air supply for oil or 

water contamination.  If 
there is oil or water present 
the air supply must be fil-
tered or the machine 
switched to nitrogen or 
bottled air. 

3. Make sure air pressure is 

60 to 65 PSI.

4. Check spark gap setting -

.060” - clean if necessary.

1. This is an overcurrent con-

dition caused by a surge of 
current the machine is not 
designed to handle. 
Release the torch trigger 
and resume cutting or 
gouging.

2. Check torch consumables 

for wear - replace if neces-
sary.

1. Make sure work cable and

clamp are secure.

2. Clean any painted or heavily

corroded work surfaces.

1. The torch and cable 

assembly could be faulty. 
Perform the Torch, Torch 
Cable Assembly, and 
Internal Trigger and Safety 
Circuit Tests.

2. Check Pilot Resistor R2. 

See Wiring Diagram

3. The Control Board could be 

faulty.  Replace.

4. Check “Jump Start Diode” - 

see wiring diagram.

1. Perform the Torch, 

2. Perform the Transistor 

3. Perform the Main Trans-

4. The Control Board could be 

faulty.  Replace.

1. Perform Transistor Module

2. Perform Power Board Test.

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

Observe Safety Guidelines

detailed in the beginning of this manual.