Hypertherm PAC500 Water Injection Plasma Cutting System - Manual (Page 31)

PAC500 Instruction Manual 3-7
4
INSTALLATION
11. Depress the STOP button.
12. Check the pilot arc operation by positioning the torch over a clear space in the cutting table, a minimum of
three inches from ground. Turn mode switch from TEST to RUN. When the START button is depressed, the
pilot arc will start after 5 seconds of gas and water flow. It should emit a steady hissing sound and cone of light.
The pilot arc will go out automatically after about 2 seconds.
13. Make a test cut with the .166 nozzle on 3/8" to 3/4" (10 to 20mm) thick scrap plate. Adjust the power supply to
the required setting for the material being cut. Refer to Cut Charts for recommended operating parameters. Do
not exceed the current limit of the nozzle in use. Press the start button to initiate the arc. When the arc is
established, start the machine motion. Note the reading on the ammeter and adjust the power up or down to
obtain the proper current as specified in the Cut Charts. Press the STOP button to terminate the cut.
14. The system is now operational.