MAINTENANCE AND TROUBLESHOOTING
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Monthly
examination
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.
Check up the bolt in arc welding machine, if it is loose, please screw down it.
If it is skid, please replace. If it is rusty, please erase rust on bolt to ensure it
works well.
Quarter-
yearly
examination
Whether the actual current accords with the displaying value. If they did not
accord, they should be regulated. The actual current value can be measured by
the adjusted plier-type ampere meter.
Yearly
examination
Measure the insulating impedance among the main circuit, PCB and case, if it
below 1M
Ω
, insulation is thought to be damaged and need to change , and need
to change or strengthen insulation.
§5.2 Troubleshooting
Before arc welding machines are dispatched from the factory, they have already been
debugged accurately. So forbid anyone who is not authorized by our company to do any
change to the equipment!
Maintenance course must be operated carefully. If any wire becomes flexible or is misplaced,
it maybe potential danger to user!
Only professional maintenance personal who is authorized by our company could overhaul
the machine!
Guarantee to shut off the arc welding machine’s power before turn on the outline of the
equipment!
If there is any problem and has no the authorized professional maintenance personal of our
company, please contact our local agent or the branch company!
If there are some simple troubles of MIG SERIES welding machine, you can consult the
following
Chart:
NO.
Troubles
Reasons
Solution
1
Close the breaker, but the
power light isn’t on
Breaker damaged
Change it
Fuse damaged
Change it
Power damaged
Change it
2
After welding machine is
over-heat, the fan doesn’t
work
Fan damaged
Change it
The cable is loosen
Screw the cable tightly
