Air Liquide SAF-FRO PRESTOJET 1 Instrucciones De Seguridad, Empleo Y Mantenimiento página 5

4. Press the bar key , (Ref. 6 - Picture 1 Page 3.) and adjust the
pressure to approx. 4 bar, by means of the pressure regulator
(Ref. 9 - Picture 1 Page 3.) .
5. Position the earth clamp on the piece to be cut, ensuring
good electrical contact.
6. Select the cutting current with the knob (Ref. 7 - Picture 1
Page 3.) following the data given in the table below
7. Approach the piece to be cut, press the torch button and be-
gin cutting.
TO AVOID ELECTRODE AND NOZZLE WEAR, IT IS ADVIS-
ABLE NOT TO KEEP THE PILOT ARC ACTIVATED IN THE
AIR.
5.0 COMMON CUTTING DEFECTS.
Trouble shooting for arc cutting operations:
Insufficient penetration.
1. Cutting speed too fast.
2. Not enough power.
3. Excessive material thickness.
4. Torch components damaged or worn.
Main arc goes off.
1. Cutting speed too slow.
2. Nozzle too distant from workpiece.
TROUBLESHOOTING)
TABLE 2. (
DISPLAY RESETTING
F14
Make sure that the cap is properly inserted. Switch the power source off and then on again.
Switch the power source off and then on again. If the "fail" persists call the assistance centre and communicate the type
F10 - F11 - F12 - -F13
of error.
Make sure that the torch button is not pressed when switching the power source on. Switch the power source off and
F 15
then on again.
F20 - F30 - F51 - F52 - F53 -
Switch the power source off and then on again. If the "fail" persists call the assistance centre and report the type of error.
F54 -F55 - F56
COMMON CUTTING DEFECTS.
Slag formation.
1. Wrong gas pressure.
2. Wrong cutting power.
Burned nozzle.
1. Current too high.
2. Nozzle damaged or loose.
3. Nozzle touching the workpiece
4. Excessive slag: low gas plasma pressure.
6.0 TROUBLESHOOTING
After starting, the power source may show operational errors on
the display (Ref. 3 - Picture 1 Page 3.), as shown in the table be-
low TABLE 2.). These errors can be remedied or are irreversible.
7.0 MAINTENANCE
CAUTION: DISCONNECT THE EQUIPMENT FROM THE ELEC-
TRICITY MAINS BEFORE DOING ANY MAINTENANCE
WORK.
7.1 MAINTENANCE OF THE EQUIPMENT
Twice a year, depending on the degree of use of the unit, inspect:
- The cleanliness of the equipment
- The electrical and gas connections
- The air filter-regulator.
For all operations:
- Remove the equipment cover.
4 EN
EN