TM 9-4940-568-20
2-104
Table 2-17. ARC Welder Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. LIMITED WELD OUTPUT.
Poor primary input voltage.
Check primary input voltage is within 10% of nominal voltage, i.e. 230 VAC 10%.
11. ERRATIC OR IMPROPER WELD OUTPUT.
Loose welding cable connections.
Tighten all welding cable connections.
Improper setup.
Check for proper connection of input power.
12. NO 115 VAC OR 24 VAC AT 14-PIN CONNECTOR.
Front panel circuit breakers are tripped.
Reset front panel circuit breakers.
13. NO WELD OUTPUT; FAN NOT OPERATING; WARNING INDICATOR OFF.
Line voltage too low.
Verify that input voltage matches setting on rear panel INPUT SELECTOR switch.
