Hypertherm HT4400 Plasma Arc Cutting System Gas Panel - Manual (Page 23)

OPERATION
HT4400 with Titan Gas Panel Instruction Manual 3-7
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Daily Startup
Prior to startup, ensure that your cutting environment and that your clothing meet the safety requirements outlined
in the Safety section of HT4400 manual 803580. See Post-installation in Section 2 of this manual if you are
switching the power supply on for the first time.
WARNING
Before operating this system, you must read the Safety section in manual 803580 thoroughly! Turn
main disconnect switch to the power supply OFF before proceeding with the following steps.
Retaining Cap Torch Current Ring Electrode Swirl Ring Nozzle
1. Check Torch and Consumables
1. Remove the consumables from the torch and check for worn or damaged parts. See Changing
Consumable Parts in Operation section of manual 803580. Always place the consumables on a
clean, dry, oil-free surface after removing. Dirty consumables can cause the torch to
malfunction.
• Check the pit depth of the electrode. The electrode should be replaced when the depth exceeds
.040 inch (1 mm). A gauge for measuring electrode pit depth can be purchased through Hypertherm.
See Section 6 Parts List in this manual. See also Inspect Electrode Pit Depth in Operation section of
manual 803580.
• Wipe the current ring in the torch with a clean paper towel or cotton swab.
• Refer to the Cut Charts to choose the correct consumables for your cutting needs.
2. Replace consumable parts. Refer to Changing Consumable Parts in Operation section of manual
803580 for detailed information on replacing consumables.
3. Ensure that the torch is perpendicular to the material. Refer to Operation section of manual 803580 for
the torch alignment procedure.