ESAB ESP-200 - Page 75

75
SECTION 6 TROUBLESHOOTING
Problem Possible Cause Corrective Action
Torch Fails to Fire
Positive Cut Angle
Negative Cut Angle
1. Start gas too high.
2. Coolant ow switch not satised.
3. Torch parts worn out.
4. Start signal not present
5. Pressure switches for gas not satised.
6. Power supply problem.
1. Arc voltage too high.
2. Cutting speed too fast.
3. Cutting current too high.
1. Arc voltage too low.
2. Cutting speed too slow.
3. Cutting current too low
1. Lower start gas ow.
2. a). Pump pressure too low,
should be 90 - 100 psig.
b). Faulty coolant ow switch.
c). Obstruction in torch limiting
coolant ow.
3. Service torch as outlined in the torch
manual.
4. Trouble shoot signal path.
5. Check for proper pressure and ow.
6. Run through all setup procedures.
1. Lower arc voltage in small (5 Volt)
increments.
2. If cutting speed is too fast,
decrease speed.
3. a). Wrong nozzle being used.
b). Lower current into correct
operating range.
1. Raise the arc voltage in small incre-
ments (5 Volts).
2. Simply increase speed.
3. Change to a higher current nozzle.