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MAINTENANCE
WARNING
Before maintenance and checking, power must be turned off, and before opening the
housing, make sure the power plug is pulled off.
1. Remove dust by dry and clean compressed air regularly, if welding machine is operated in environment
where is polluted with smokes and pollution air, the machine need remove dust every month.
2. Pressure of compressed air must be inside the reasonable arrangement in order to prevent damaging to
small components of inner-machine.
3. Check internal circuit of welding machine regularly and make sure the cable circuit is connected correctly
and connectors are connected tightly (especially insert connector and components). If scale and loose
are found, please give a good polish to them, then connect them again tightly.
4. Avoid water and steam enter into inner-machine, if them enter into machine, please dry inner-machine
then check insulation of machine.
5. If welding machine will not be operated long time, it must be put into packing box and stored in dry
environment.
NOTES BEFORE CHECKING
WARNING
Blind experiment and careless repair may lead to more problems and make formal check and repair
more difficult. When the machine is electrified, the bared parts contain life-threatening voltage. Any
direct and indirect touch will cause electric shock, and severe electric shock will lead to death.
NOTICE: In the period of guarantee maintenance, if user makes wrong check and repair for
malfunction of welding/cutting machines without our permission, the free maintenance guarantee
offered will be invalid
