Basic Troubleshooting - Kemppi FastMig MXF65 Operating Manual

6.

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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 Pulse.
Problem
Machine won't work?
Dirty, poor quality weld?
Variable welding
performance?
Filler wire won't feed?
High spatter volume?
Many of these checks may be carried out by the operator. However certain checks relating to
NOTE!
mains power must be completed by an authorised trained electrician.
Check the following
• 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.
• 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 curve selected
• Check correct Channel (job) number selected on PF65 function 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 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.
• 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 curve selected
• Check correct Channel (job) number selection
• Check filler wire delivery system
• Check power supply – 3 x phase present?
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