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• Press the torch switch till the wire extends to the nozzle
• When wire feeding, make the cable straight.
• When wire feeding, make sure the wire is located on the wire roller groove reliably and the feeding speed should be smooth. If
the wire feeding speed is not smooth, please adjust the tension of the wire roller.
• When using aluminum wire, the "U" type groove wire roller should be used.
Welding
• When welding, please adjust the welding current and welding voltage matchable according to the set-up.
• Aim at the welding line, press down the torch switch, the wire feeds automatically. The arc is started once the wire is touched the
work piece. When welding, the "working indicator" is ON.
5.4 MMA Welding steps
Debugging before welding
• Set the "welding mode switch" on "MMA", it means the MMA welding can be used.
• Set the welding current via welding current adjustor.
Welding
• When welding, please adjust the welding current and welding voltage matchable according to the set-up.
• Take up the electrode holder, install the electrode, aim at the welding line, scratch the work piece to start the arc. The "working"
indicator is ON.
5.5 Maintenance and Service
Unlike the traditional welder, the reversible welder belongs to the scientifically sophisticated product which uses the modern
electronic component parts combined with high technology. Therefore the trained personnels are required for its maintenance.
However, due to the fact that there are very few components to be easily worn out, it doesn't need regular service apart from usual
cleaning work. Only the qualified people are allowed to be in charge of the repair job. It is strongly recommended that customers
contact our company for the technical back-up or service when they feel unable to work out the technical hitch or problems.
• The newly installed welder or which haven't been in use for some time need s to be surveyed the insulation resistances between
each winding and every winding to case with millimeter, which can not be less than 2.5MΩ.
• Keep from the rain, snow and long term exposing to sunlight when welder is used outdoor.
• If the welder is not in use either for a long time or temperature ranges from -25 ~ ﹢55 ºC, and the relative humidity can not be
more than 90%.
• The professional maintenance personnel should use dry compressed air (use air compressor or bellows) to remove the dust
inside the machine. The part adhering to grease must be cleaned with cloth while make sure there are no loosing parts existed in
the tightened places and connected cable. Usually the machine should be cleaned once a year if the dust accumulation problem
is not very serious, while it needs cleaning once or even twice every quarter if the dust accumulation problem is serious.
• Regularly check the input & output cables of welder to guarantee them right and firmly connected and avoid them being exposed.
Check should be taken once every month when fixed using and every check taken when removing.
• Regularly check the seal performance of gas system, whether the fan and feeder motor having abnormal sound and whether
every joint being loose.
• Keep torch cable direct when welding.
• Regularly clean the splash of nozzle (cannot use the way similar to knocking the torch head) and MMA to using splash ointment.
Don't remove the feeder device by means of pulling he torch cable.
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