Longevity PROMTS 200 - Manual (Page 21)

ProMTS 200 200AMP Synergic MIG/TIG/STICK
- 21 -
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 connector is loose 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.
Monthly
examination
Using the dry compressed air to clear the inside of arc welding machine.
Especially for clearing 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.
Quarter-
yearly
examination
Whether the actual current accords with the displaying value. If they did not
accord, they should be regulated. The actual current value can be measured by
the adjusted plier-type ampere meter.
Yearly
examination
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.