Selco Saber 70 chp Manuel D'instructions page 44

Cause Incorrect or worn rollers
Solution Replace the rollers.
Cause Faulty wire feeder.
Solution Replace the faulty component.
Contact the nearest service centre to have the sy-
stem repaired.
Cause Damaged torch liner.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause No power supply to the wire feeder.
Solution Check the connection to the power source.
Read the paragraph "Connections ".
Contact the nearest service centre to have the sys-
tem repaired.
Cause Tangled wire on the spool.
Solution Untangle the wire or replace the wire spool.
Cause Melted torch nozzle (wire stuck)
Solution Replace the faulty component.
Irregular wire feeding
Cause Faulty torch trigger button.
Solution Replace the faulty component.
Contact the nearest service centre to have the sy-
stem repaired.
Cause Incorrect or worn rolls.
Solution Replace the rolls.
Cause Faulty wire feeder.
Solution Replace the faulty component.
Contact the nearest service centre to have the sy-
stem repaired.
Cause Damaged torch liner.
Solution Replace the faulty component.
Contact the nearest service centre to have the sy-
stem repaired.
Cause Incorrect spindle clutch or misadjusted rolls locking
devices.
Solution Release the clutch.
Increase the rolls locking pressure.
No pilot arc striking
Cause Faulty torch trigger button.
Solution Replace the faulty component.
Contact the nearest service centre to have the sy-
stem repaired.
Cause Worn nozzle and/or electrode.
Solution Replace the faulty component.
Cause Air pressure too high.
Solution Adjust the air flow.
Read the paragraph "Installation ".
Cause Faulty electronics.
Solution Contact the nearest service centre to have the sy-
stem repaired.
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No cutting arc striking
Cause
Solution
Cause
Solution
Cutting arc extinction
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Arc instability
Cause
Solution
Cause
Solution
Cause
Solution
Excessive spatter
Cause
Solution
Cause
Solution
Cause
Solution
Cause
Solution
Incorrect earth connection.
Earth the system correctly
Read the paragraph "Installation ".
System parameters or functions set incorrectly.
Reset the system and the welding/cutting para-
meters.
Contact the nearest service centre to have the sy-
stem repaired.
Mains voltage out of range.
Connect the system correctly.
Read the paragraph "Connections ".
Insufficient air flow rate.
Adjust the air flow.
Damaged pressure switch.
Replace the faulty component.
Air pressure too high.
Adjust the air flow.
Read the paragraph "Installation".
Incorrect welding/cutting mode.
Decrease the welding/cutting travel speed.
Worn nozzle and/or electrode.
Replace the faulty component.
Insufficient shielding gas.
Adjust the gas flow.
Check that the diffuser and the gas nozzle of the
torch are in good condition.
Humidity in the welding/cutting gas.
Always use quality materials and products.
Ensure the gas supply system is always in perfect
condition.
Incorrect welding/cutting parameters.
Check the welding/cutting system carefully.
Contact the nearest service centre to have the sy-
stem repaired.
Incorrect arc length.
Decrease the distance between the electrode and
the piece.
Decrease the welding/cutting voltage.
Incorrect welding/cutting parameters.
Decrease the welding/cutting voltage.
Incorrect arc regulation
Increase the equivalent circuit inductive value setting.
Use a higher setting inductive connection.
Insufficient shielding gas.
Adjust the gas flow.
Check that the diffuser and the gas nozzle of the
torch are in good conditions.