Kemppi FastMig Pulse 350 - Manual (Page 23)

EN
5. BASIC TROUBLESHOOTING
NOTE! The problems listed and the possible causes are not definitive, but serve to suggest some
standard and typical situations that may present during normal environmental use when using
the MIG/MAG process with FastMig Pulse.
Problem Check the following
Machine won’t work? Check mains plug is connected
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 function panels are switched on – Orange buttons top left, long press.
Dirty, poor quality weld? Check shielding gas supply
Check and set gas flow rate
Check gas type for application
Check gun/electrode polarity. Example: Fe solid filler wire: Earth return should be
connected to the – pole, wire feed unit to the + pole connector
Check correct welding program selected
Check correct Channel (job) number selected on PF65 function panel
Check power supply – Phase down?
Variable welding performance? 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.
Filler wire won’t feed? Check wire feed mechanism. Pressure arms are closed? Close and adjust
Check welding gun switch function.
Check euro gun collar is correctly fastened to euro block
Check gun liner is not blocked
Check contact tip, size, type, wear
Check and try alternative gun.
High spatter volume? 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 (job) number selection
Check filler wire delivery system
Check power supply – 3 x phase present?
NOTE! Many of these checks may be carried out by the operator. However certain checks relating to
mains power must be completed by an authorised trained electrician.
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