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Maintenance and Troubleshooting - 1
The periodic maintenance procedures have to be carried out regularly to ensure the efficient and
safe operation of the welding machine. The user needs to understand the maintenance procedures,
two know the welding machine well, to be able to carry out the safety practices alone and take care
to prolong the service life of the machine by minimizing the error rates. Detailed information about
periodic maintenance has been given in the table below.
Warning : The welding machine must absolutely be disconnected from the mains supply during
the maintenance works. The maintenance works must be carried out by authorized specialists.
DAILY MAINTENANCE
Make sure that the welding current adjustment knob of the front panel of the machine
and the On/Off switch on the rear panel are in place and good working order. If current
adjustment knob is not installed properly or if the on/off switch is loose and not working
freely, contact to an authorized service shop.
After turning on, check the machine for vibrations, whistling sounds and smoke etc. In case
of any problem, try to find the source; if the problem is stemming from the environment,
eliminate it and if the problem is stemming from the machine, do not intervene and contact
to an authorized service after disconnecting from the mains.
Check the proper operation of the thermal protection of the machine. To check this:
Load the machine at 200 A at %20 duty cycle. If the thermal protection does not activate
within approximately 4-5 minutes at this current value, something must be wrong with the
thermal protection. Contact the service in such a case. Otherwise, overheating may lead
to a risk of fire.
Check the short circuit protection. To check this: Touch the electrode to the work piece
and measure the current passing through the welding cable with clampmeter. The current
should drop to 5 A in a short time. If not contact your service.
Make sure that the welding current is according to the setting value. In case of difference,
re-adjust as this may affect the normal welding operation.
Make sure that the cooling fan is not faulty and rotates normally. If the fan does not cut in
when the machine gets really hot, check if the fan impeller is stuck. If the fan is defective,
contact your service.
Check is the welding connections are loose and overheating. Incase of overheating or
looseness, tighten them or contact to your service.
Check the current cable for damages. If damaged, wrap the damaged section with an
appropriate insulator or replace the cable.
MONTHLY MAINTENANCE
Clean the dust accumulated in the machine in time using a dry air compressor. Be careful
about the pressure value of the air against damaging the smaller components.
Check the screws on the machine. Re-tighten any loose screws. Re-install any missing
screws and replace any rusty screws.
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