Lincoln Electric SVM150-A 用户手册

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

The welding arc is “cold.”  The
engine runs normally.  The auxiliary
power is normal.

1.  Check for loose or faulty con-

nections at the weld output ter-
minals and welding cable con-
nections.

2.  The welding cables may be too

long or coiled, causing an
excessive voltage drop.

3.   Make sure the electrode (wire,

gas, voltage, current etc.) is
correct for the process being
used.

1.  Check for the correct OCV at

the welding output terminals.  If
the correct voltage is present at
the output terminals, check for
loose connections on the heavy
current carrying leads inside the
Ranger 250.  See the Wiring
Diagram.

2.  If the OCV is low at the welder

output terminals, perform the
Engine Throttle Adjustment
Test.

3.  Perform  the  Output Rectifier

4.  Perform  the  Stator Voltage

5.  Perform  the  Power Module

6.  

The Control Board may be
faulty.