Filter
Top Products
ELECTRIC SHOCK can kill.
• With power applied, there
are high voltages inside
the wire feeder. Do not
reach into the wire feeder
or touch any internal part
of the wire feeder while
power is applied.
3. With the LN-9 GMA gun trigger closed or the
gun terminals jumpered together (see the
Wiring Diagram), the test meter reading
should match the LN-9 GMA ACTUAL volts
reading within ± 0.5 volts. If it does not, check
the integrity and placement of the voltage
sensing leads #21 and #67. Perform the
Meter Circuit Accuracy Test.
4. Remove the test voltmeter and, while weld-
ing, compare the SET volts and ACTUAL volts
meter readings. Depending upon the arc volt-
age characteristics of the welding process
being used, the ACTUAL reading may vary
somewhat around an average value. The
average ACTUAL reading should match the
SET reading within ± 0.5 volts. If not, refer to
the
Meter Circuit Accuracy Test.
5. If no further tests are required, remove the
jumper from the gun terminals (if used) and
close the left case side cover assembly.
TROUBLESHOOTING & REPAIR
F-40 F-40
LN-9 GMA Wire Feeder
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
WARNING
VOLTMETER ACCURACY TEST (continued)