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F-16
TROUBLESHOOTING & REPAIR
F-16
WIRE-MATIC 255
ACTIVE SCR RECTIFIER ASSEMBLY TEST
TEST DESCRIPTION
The Active SCR Test will determine if the device is able to be gated ON and conduct current
from anode to cathode.
MATERIALS NEEDED
An SCR Tester as specified in this procedure.
Wire-Matic 255 wiring diagrams (See Electrical Diagrams Section of this Manual).
SCR Heat Sink Assembly Drawings.
Service and repair should be performed only by Lincoln Electric factory trained per-
sonnel. Unauthorized repairs performed on this equipment could result in danger to
the technician or the machine operator and will invalidate your factory warranty. For
your safety and to avoid electrical shock, please observe all safety notes and pre-
cautions detailed throughout this manual.
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 (800) 833-9353 (WELD).
_____________________________________________________________
WARNING