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8 TROUBLESHOOTING
8
TROUBLESHOOTING
8.1
Preliminary checks
Try these checks and inspections before sending for an authorized service technician.
Before attempting to troubleshoot the ESAB Rebel it is recommended to first perform
a WELD DATA RESET (navigate to HOME/SETTING/RESET/WELD DATA RESET). A
WELD DATA RESET of the system will restore the unit to its default welding condition.
Performing this Reset will not lose any user stored memory values but will establish a
baseline from which all troubleshooting should start. If the WELD DATA RESET is not
successful it is recommended to perform a Factory Reset and repeat testing.
CAUTION!
A Factory Reset will also erase all user stored memory locations. If this does not
correct the problem, follow the table where possible.
Type of fault
Porosity within the weld
metal
Wire feeding problems
MIG (GMAW/FCAW)
welding problems
MMA (SMAW) basic
welding problems
0463 618 001
Corrective action
•
Check gas bottle is not empty.
•
Check gas regulator is not closed.
•
Check gas inlet hose for leaks or blockage.
•
Check that the correct gas is connected and the correct
gas flow is used.
•
Keep the distance between the MIG torch nozzle and the
work piece to a minimum.
•
Do not work in areas where drafts, which would disburse
the shielding gas, are common.
•
Make sure the work piece is clean, with no oil or grease on
the surface, before welding.
•
Make sure the wire spool brake is adjusted correctly.
•
Make sure the feed roller is correct size and not worn.
•
Make sure the correct pressure is set on the feed rollers.
•
Make sure the proper direction of motion is set based on
the wire type (into the weld pool for aluminum, away from
the weld pool for steel).
•
Make sure the correct contact tip is used and it is not
worn.
•
Make sure liner is the right size and type for wire.
•
Make sure the liner is not bent so that friction is caused
between the liner and the wire.
•
Make sure the MIG torch is connected to the correct
polarity. Refer to the electrode wire manufacturer for the
correct polarity.
•
Replace contact tip if it has arc marks in the bore causing
excessive drag on the wire.
•
Make sure the correct shielding gas, gas flow, voltage,
welding current, travel speed and MIG torch angle is used.
•
Make sure the work lead has proper contact with the work
piece.
•
Make sure you are using the correct polarity. The
electrode holder is usually connected to the positive
polarity and the work lead to the negative polarity. If in
doubt, consult the electrode data sheet.
- 66 -
© ESAB AB 2019
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