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4.5. Operation Notices
- Read Section 1 carefully before starting to use this equipment.
- Connect the ground wire with the machine directly.
- Ensure that the input is single-phase: 50/60Hz, 110V/220V ±10%.
- Before operation, none concerned people should not be around the working area and especially
children. Do not watch the arc in unprotected eyes.
- Ensure good ventilation of the machine to improve Duty Cycle.
- Turn o the engine when the operation nished for energy consumption e ciency.
- When power switch shuts o protectively because of failure. Don't restart it until problem is resolved.
Otherwise, the range of problem will be extended.
- In case of problems, contact your local dealer if no authorized maintenance sta is availa
5. MAINTENANCE & TROUBLESHOOTING
5.1. Maintenance
In order to guarantee safe and proper operation of welding machines, they must be maintained
regularly. Let customers understand the maintenance procedure of welding machines. Enable
customers to carry on simple examination and inspections. Do your best to reduce the fault rate and
repair times of welding machines to lengthen service life of arc welding machine. Maintenance items
in detail are in the following table.
Warning: For safety while maintaining the machine, please shut o the main input power and wait for
5 minutes, until capacitors voltage already drop to safe voltage 36V!
Date
Daily
examination
- Observe that the knobs and switches in the front and at the back of arc
welding machine are exible and put correctly in place. If any knob has
not been put correctly in place, please correct. If you can't correct or x
the knob, please replace immediately.
- If any switch is not exible or it can't be put correctly in place, please
replace immediately! Please get in touch with maintenance service
department if there are no accessories.
- After turn-on power, watch/listen if the arc-welding machine has
shaking, whistle calling or peculiar smell. If there is one of the above
problems, nd out the reason and clear it. If you can't nd out the reason,
please contact your local service repair station or distributor/Agent.
- Observe that the display value of LED is intact. If the display number is
not intact, please replace the damaged LED. If it still doesn't work, please
maintain or replace the display PCB.
- Observe that the min./max.Values on LED agree with the set value. If
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Maintenance items
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