Maintenance
Obse rv e tha t whe th er pa ne l knob and s wi tc h in the fr on t and at th e
back of arc w el di ng ma ch ine are fle xi bl e ane pu t c orrectly i n pla ce .I f
the knob has not been put correctly in place, please correct, If you can’t
correct or fix the knob, please replace immediately
If the switch is not flexible or it can’t be put correctly in place, please
re pl ac e immediat el y; Pl ease g et in to uch with main te nance serv ic e
department if there are no accessories
Af ter tur n -on p owe r, wa tch /li s ten t o th at whet h er th e ar c we ldi n g
machine has s haking, whis tle cal lin g or peculiar sm ell. If there is one
of t h e abov e p robl e m s, fi n d out t h e re a s on to g et ri d of, i f you c a n’t
find out the reason, Please contact local this area agent or the branch
company
Observe that whet her the display value of LED is intac t. 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 whether the min/max value on LED accords with the set
value.If there is any difference and it has affected the no rmal welding
craft, please adjust it
Check up that Whether fan is damaged and is normal to rotate or control
. If the fan is dama ged ,pl ease change immediately.If the fan d oes not
rotate after the arc welding machine is overheated, observe that whether
there is something blocked in the blade,if it is blocked,please get rid of;
If the fan does not rotate after getting rid of the above problems, you can
poke the blade by the rotation direction of fan.If the fan rotates normally,
the start capacity should be replaced; If not, change the fan
Observe that whether the fast co nnector i s loos e or overheated . If
the arc welding machine has the above problems,it should be fastened
or changed
Observe that Whether the current output cable is damaged. If it is
damaged, it should be wrapped up, insulated or changed
Using the dry compressed air to clear the inside of arc welding machine.
Especially forclearing 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
Whether the actual current accords with the displaying value.If they
does not accord, they should be regulated.The actual current value can
be measured by the adjusted plier-type ampere meter
Measure the insulating impedance among the main circuit,PCB and
case, if it below 1MΩ,insulation is thought to be damaged and need to
change, and need to change or strengthen insulation
Date
Daily
examination
Monthly
examination
Quarter-
yearly
examination
Yearly
examination
Maintenance item
◆Warning:For safety while maintaining the machine, please shut off the
supply power and wait for 5minutes,until capacity voltage already drop
to safe voltage 36V!
6.1 Maintenance
In order to guarantee that arc welding machine works high-efficiently and in safety,it must
be maintained regularly.Let customers understand the maintenance methods and means
of arc w el di ng mach in e m or e, enable c us to me rs to ca rr y on s im pl e exa mi na ti on an d
safeguarding by oneself,try one’s best to reduce the fault rate and repair times of arc
welding machine, so as to lengthen service life of arc welding machine.Maintenance
items in detail are in the following table.
28
AC/DC WIG SERIES EQUIPMENT
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