Basic Troubleshooting - Kemppi WFX 200 Operating Manual

4.

BASIC TROUBLESHOOTING

The problems listed and the possible causes are not definitive, but serve to suggest some
NOTE!
standard and typical situations that may present during normal environmental use when using
the MIG/MAG process with FastMig X 350 or X 450 and WFX wire feeders.
Problem
Machine won't work
Dirty, poor quality
weld
Variable welding
performance
Filler wire won't feed
High spatter volume
© Kemppi Oy / 1736
Check the following
• Check mains plug is connected correctly
• Check mains power distribution is switched on
• Check the mains fuse and or circuit breaker
• Check power source 0/I switch is ON
• Check interconnection cable set and connectors between the power source and wire feed unit
are correctly fastened. See the manual schematic
• Check earth return lead is connected
• Check control panels are switched on.
• Check shielding gas supply
• Check and set gas flow rate
• Check gas type for application
• Check gun/electrode polarity
• Check correct welding program selected
• Check correct channel number selected on wire feeder control panel
• Check power supply – Phase down?
• Check wire feed mechanism is correctly adjusted
• Check correct drive rolls are fitted
• Check wire spool overrun tension is correctly adjusted
• Check gun liner is not blocked, replace if necessary
• Check correct gun liner is fitted for the filler wire size and type
• Check contact tip for size, type and wear
• Check gun is not over heating in application
• Check cable connections and earth return clamp
• Check welding parameter settings.
• Check that pressure arms are closed and adjusted in wire feed mechanism
• Check welding gun switch function
• Check Euro gun collar is correctly fastened
• Check gun liner is not blocked
• Check contact tip, size, type, wear
• Check and try alternative gun
• Check welding parameter values
• Check inductance/Dynamics values
• Check cable compensation value if long cables are fitted
• Check gas type and flow
• Check welding polarity – cable connections
• Check filler material selection
• Check correct welding program selected
• Check correct channel number selection
• Check filler wire delivery system
• Check power supply – 3-phase present?
EN
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