Lincoln Electric POWER WAVE SVM135-B Service Manual page 82

F-18
POWER FEED
Observe all Safety Guidelines detailed throughout this manual.
PROBLEMS
(SYMPTOMS)
When the gun trigger is activated,
the drive rolls do not turn. The arc
voltage is present and the solenoid
is energized. The STATUS LEDs
are steady green.
The wire is feeding rough or not
feeding, but the drive rolls are
turning.
When in CC modes with the
optional "MX" or "MSP" panels, the
output does not energize.
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.
-----------------------------------------------------------------------------------------------------------------------------
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS (Continued)
1. Check plug J3 on the wire drive
control board, and leads #550
and #551 for loose or faulty con-
nections. See wiring diagram.
1. The drive roll pressure may be
incorrect. Set drive roll pres-
sure. See Operation section in
this manual.
2. Check for dirty or rusty elec-
trode wire.
3. Make sure the drive rolls and
wire guides are positioned and
installed correctly. See Opera-
tion section of this manual.
4. Check for mechanical restric-
tions in the wire feeding path.
1. Rotate Volts/Trim encoder knob
at least 45° clockwise. This is
normal. See Accessories sec-
tion for detailed operation.
CAUTION
POWER WAVE 455/POWER FEED 10
RECOMMENDED
COURSE OF ACTION
1. Perform the Drive Motor Test .
2. The wire drive control board
may be faulty.
1. Contact the Lincoln Electric
Service Department, 216-383-
2531 or 1-800-833-9353
(WELD).
1. Check option panel installation
for loose or faulty connections.
F-18