ESAB powercut 700 PT-39 Instruction Manual page 21

US
Try these recommended checks and inspections before sending for an authorized
service technician.
Type of fault
Insufficient penetration
Main arc extinguishes.
Dross formation (In some materials and
thickensses it may be impossible to get
dross-free cuts.)
Double arcing (Damaged nozzle orifice)
Uneven arc
Unstable cutting conditions
Main arc does not strike.
Poor consumable life
If you cannot locate the problem switch off the incoming power supply, open the unit
and check all components and conductors visually. Look for swollen or leaking
condensers and other signs of damage or discoloration.
bp23aa
Corrective action
S Current too low
S Cutting speed too fast
S Damaged cutting nozzle
S Improper air pressure
S Low air flow rate
S Cutting speed too slow
S Worn electrode
S Current too low
S Cutting speed too fast or too slow
S Improper air pressure
S Faulty nozzle or electrode
S Low air flow rate
S Low air pressure
S Damaged cutting nozzle
S Loose cutting nozzle
S Heavy spatter accumulation on nozzle
S Damaged cutting nozzle or worn electrode
S Incorrect cutting speed
S Loose cable or hose connections
S Electrode and/or cutting nozzle in poor
condition
S Worn electrode
S Loose connections
S Work cable not attached
S Improper gas pressure
S Contaminated air supply
S Low air flow rate
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© ESAB AB 2012