Sweiss SKYMAX 2040 Nx Manual De Usuario página 84

TIME
Monthly
examination
Quarteryearly
examination
Yearly
examination
MAINTENANCE ITEMS
Using the dry compressed air to clear the inside of arc welding machine.
Especially for clearing up the dusts on radiator, main voltage transformer,
inductance, IGBT module, the fast recover diode and PCB, etc.
Whether the actual current accords with the displaying value. If they does
not accord, they should be regulated by an authorized service center. The
actual current value can be measured by the adjusted plier-type ampere
meter.
Measure the insulating impedance among the main circuit, PCB and case,
if it below 1M , insulation is thought to be damaged and need to change ,
and need to change or strengthen insulation.
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