Ch 9
Air, plasma, and consumables
Dynamic air, matching tips, work lead, square torch, voltage input notes.
Never touch THC arc-voltage terminals while energized. Raw plasma arc voltage can cause severe injury or death. Only a qualified person should connect arc-voltage wiring.
Machine-specific profiles, wiring diagrams, pin maps, motor tuning, and cut charts always override generic examples. Escalate when unsure.
Symptom
Weak cut, no transfer, or plasma faults related to air or torch parts.
Quick checks
- ☐Air flowing at required dynamic pressure during cut
- ☐Drain tanks/traps; dry oil-free supply
- ☐Consumables match selected amperage — no mixed sets
- ☐Work lead on clean metal
Fix
Process
Use exact plasma cut chart for model/torch/amps/material. Torch square in both axes. Correct cutting vs expanded-metal mode.
Arc voltage to Proma
Use exact connector diagram for your plasma revision — never pins by color. One method only: approved raw OR approved divided (Proma 1:50). Never both. Qualified person only for arc-voltage wiring.
Still stuck?
Text a photo — fastest path to a human who knows these tables.
We're in Glendale — same people who build the tables. Text beats voicemail.