Kemppi 350 Operating Manual

Contents

EN5. BasiC trOuBleshOOtingNOTE! The problems listed and the possible causes are not definitive, but serve to suggest somestandard and typical situations that may present during normal environmental use when usingthe MIG/MAG process with FastMig Pulse.Problem Check the followingMachine won’t work? Check mains plug is connectedCheck mains power distribution is switched onCheck the mains fuse and or circuit breakerCheck power source 0/I switch is ONCheck interconnection cable set and connectors between the power source and wirefeed unit are correctly fastened. See the manual schematicCheck earth return lead is connectedCheck function panels are switched on – Orange buttons top left, long press.Dirty, poor quality weld? Check shielding gas supplyCheck and set gas flow rateCheck gas type for applicationCheck gun/electrode polarity. Example: Fe solid filler wire: Earth return should beconnected to the – pole, wire feed unit to the + pole connectorCheck correct welding curve selectedCheck correct Channel (job) number selected on PF65 function panelCheck power supply – Phase down?Variable welding performance? Check wire feed mechanism is correctly adjustedCheck correct drive rolls are fittedCheck wire spool overrun tension is correctly adjustedCheck gun liner is not blocked. Replace if necessaryCheck correct gun liner is fitted for the filler wire size and typeCheck contact tip for size, type and wearCheck gun is not over heating in applicationCheck cable connections and earth return clampCheck welding parameter settings.Filler wire won’t feed? Check wire feed mechanism. Pressure arms are closed? Close and adjustCheck welding gun switch function.Check euro gun collar is correctly fastened to euro blockCheck gun liner is not blockedCheck contact tip, size, type, wearCheck and try alternative gun.High spatter volume? Check welding parameter valuesCheck inductance/Dynamics values•Check cable compensation value if long cables are fittedCheck gas type and flowCheck welding polarity – cable connectionsCheck filler material selectionCheck correct welding curve selectedCheck correct Channel (job) number selectionCheck filler wire delivery systemCheck power supply – 3 x phase present?NOTE! Many of these checks may be carried out by the operator. However certain checks relating tomains power must be completed by an authorised trained electrician.20FastMig Pulse 350, 450 / © Kemppi Oy / 1110