Lincoln Electric IM669 RED-D-ARC DC-600 - Manual (Page 35)

DC-600 RED-D-ARC
E-7 TROUBLESHOOTING E-7
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Authorized
Field Service Facility.
PROBLEMS
(SYMPTOMS)
Poor arc starting when the DC-
600 is in the CV Sub-Arc or CV
Innershield Modes.
Machine has output but trips off
immediately when wire feed unit
trigger is activated.
Poor arc characteristics in all
processes.
POSSIBLE
CAUSE
1. Make sure the proper welding
procedures are being used. (wire
feed speed, arc voltage and wire
size).
2. Check weld cables for loose or
faulty connections.
1. Remove output cables from DC-
600. If problem is resolved check
for external short between weld-
ing cables. Also check control
cable (#75, #76, & #77) for
grounds or shorts.
1. Check for the correct input volt-
ages on the three phase input
lines at the DC-600.
2. Make sure the proper welding
procedures are being used.(wire
feed speed, arc voltage and wire
size).
3. Check the welding cables for
loose or faulty connections.
RECOMMENDED
COURSE OF ACTION
WELDING PROBLEMS
Observe all Safety Guidelines detailed throughout this manual