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MAINTENANCE
WARNING：
Power must be turned off for all checking and maintenance, before opening the housing, make sure
the power plug is disconnected.
1. Remove dust by dry and clean compressed air regularly, if welding machine is operated in environment where is
polluted with smokes and polluted 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 inter 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 they enter into machine, please dry inner-machine then check
insulation of machine.
5. If welding machine will not be operated for 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.
WARNING！
Connected welding machine to dynamotor directly will damage machine. The heavy voltage
pulse which is produced by dynamotor will burn out machine when machine connected
to dynamotor, only can use asynchronous dynamotor whose frequency and voltage both are
steady. Because of connecting welding machine to dynamotor directly lead to damage
and malfunction, which is not in guarantee.
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