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Table.5-1: Trouble shooting
6-CARE AND MAINTENANCE
Before open the machine
Warning!
An electric shock can be fatal. Before doing any work on the machine:
-
Switch it off and unplug it from the mains
-
Put up a clearly legible and easy-to-understand warning sign to stop anybody
inadvertently switching it on again
-
Check to make sure the electrically charged components (e.g.capacitors) have
been discharged.
-
Bolts in machine case also work for ground connection. Never use other bolt that
cannot work for ground connection.
Maintenance
Please follow the instructions as below to ensure normal lifespan of power source.
- Conduct safety check at regular intervals (see “Safety rules”)
- Dismantle machine side panels and clean machine inside with clean and low-pressure
compressed air by professional technician, not less than twice per year. Clean the
components at a certain distance only;
damaged
4
Welding current is not
stable
1.Welding current adjustment
potentiometer is damaged
2.Main control board is
damaged
3.Bad connection in the
welding machine
Check and replace
5
Welding current is not
adjustable
1.Welding current adjustment
potentiometer is damaged
2.Main control board is
damaged
Check and replace
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