7 TROUBLESHOOTING
0463 613 001
- 34 -
© ESAB AB 2018
7
TROUBLESHOOTING
Perform these checks and inspections before sending for an authorised service technician.
• Check that the welding power source is connected to the correct mains voltage.
• Check that welding cables and connections are not damaged.
• Check that the controls are correctly set.
• Check that the mains voltage is disconnected before starting any type of repair action.
Type of fault
Possible cause
Corrective action
Current and
voltage readings
show large
fluctuations.
Contact jaws or nozzle are
worn or wrong size.
Replace contact jaws or nozzle.
Wire feed roller pressure is
inadequate.
Increase pressure on wire feed rollers.
Wire feed is
irregular.
Pressure on wire feed rollers
is incorrectly set.
Adjust pressure on wire feed rollers.
Wire feed rollers are of the
wrong size.
Replace wire feed rollers.
Grooves in wire feed rollers
are worn.
Replace wire feed rollers.
Welding cables
are overheating
Poor electrical connection.
Clean and tighten all electrical
connections.
Cross-sectional area of
welding cables is too small.
Use cables with a larger cross-section or
use parallel cables.
Содержание 0904 200 880
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Страница 21: ...5 OPERATION 0463 613 001 21 ESAB AB 2018 NOTE Make sure the welding head has cooled down before dismounting ...
Страница 37: ...DIAGRAM 0463 613 001 37 ESAB AB 2018 DIAGRAM Digital power source ...
Страница 38: ...DIAGRAM 0463 613 001 38 ESAB AB 2018 Analogue power source ...
