Jasic MIG 350 Pulse Separate - Maintenance and Troubleshooting; Routine Maintenance Procedures; Seeking Professional Assistance; Safety During Maintenance

WWW.JASIC.CO.UK 27
Maintenance and troubleshoong
Maintenance
Clean out the dust inside the power supply periodically: Too much dust inside the power supply would
reduce the insulaon performance of the welding machine, which brings direct threat against machine
operaon and personal safety. It should be cleaned at least twice a year. If welding environment with
heavy smoke and polluon, the machine should be cleaned daily. Before cleaning, turn o the power
switch, remove the side plate and top cover, and blow the dust with dry compressed air from top to
boom. The pressure of compressed air should be at a proper level in order to avoid the small parts
inside the machine being damaged. If any grease, wipe with a cloth.
Check periodically whether inner circuit connecon is in good condion (esp. plugs). Tighten the loose
connecon. If there is oxidizaon, remove it with sandpaper and then reconnect.
Check periodically whether the insulaon covers of all cables is in good condion. If there is any
dilapidaon, rewrap it or replace it.
Check the insulaon resistance of the welding machine periodically: Mainly check the insulaon
resistance between the welding machine power input and output and insulaon resistance between the
power input and the enclosure, and make sure such insulaon resistance should be greater than 10
ohms.
Put the machine into the original packing in dry locaon if it is not used for a long me.
The machine may be damaged during welding. Timely maintenance should be carried out aer the
conrmaon of damage. Only qualied individuals can uncover or repair the machine. Otherwise, further
machine fault and further damage to valuable parts may occur.
Ask professionals for help if any diculty.
If any diculty in installaon or operaon of the machine, please refer to the relevant contents in this manual.
If you can not fully understand aer reading, or can not solve the problem according to the instrucons in this manual,
please contact your supplier or our company for help.
Component explosion may cause injury.
When the inverter welder is powered on, invalid components may explode or lead to explosion of other components.
Wear face guard and long-sleeved clothing when maintaining the inverter welder.
Stac causes damage to PCB.
Wear a grounded anstac wristband when carrying PCBs and components.
Store, carry and transport PCBs with appropriate anstac bags or boxes.
Electric shock may occur when tesng.
Cut o the power supply of the welder before lead tesng.
Test with an instrument with auto-xing clamp on one of its leads.
Read the instrucons of the tesng equipment carefully.