Application Guide

22
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TROUBLE EXPERIENCED POSSIBLE REASONS RECOMMENDED SOLUTION
Poor cut quality.
Improper use of PLASMA
TORCH.
Review operating instructions.
PLASMA TORCH parts are
worn out.
Examine the consumables for wear and replace worn
parts with new Forney consumable parts.
Moisture or oil in air supply. Excessive humidity or oil from the compressor may be
contaminating the air supply. Install a moisture filter in the
air supply line prior to machine.
Moisture coming out of the
PLASMA TORCH.
Moisture or oil in air supply. Excessive humidity or oil from the compressor may be
contaminating the air supply. Install a moisture filter in the
air supply line prior to machine.
Sparks are being blown
upward and back at the
PLASMA TORCH CUTTING TIP
(D).
Cutting speed too fast. Decrease your torch travel speed.
Workpiece is too thick. Choose thinner workpiece material within the operational
limits of the plasma cutting machine.
Insufficient cut penetration.
Cutting speed too fast. Decrease your torch travel speed.
PLASMA TORCH is too
tilted.
Ensure that PLASMA TORCH is perpendicular to the
workpiece.
Workpiece is too thick. Choose thinner workpiece material within the operational
limits of the plasma cutting machine.
Cutting current too low. Turn current setting up.
Ensure plasma cutting machine has proper input power.
If used, eliminate or reduce length of extension cord.
PLASMA TORCH parts are
worn out.
Examine the consumables for wear and replace worn
parts with new Forney consumable parts.
Non-genuine
manufacturer’s parts.
Use only genuine Forney consumables for optimum
performance.
Interruption of the cutting arc,
but re-ignites when triggered
again.
Cutting speed too slow. Increase your torch travel speed.
PLASMA TORCH may
not be in contact with the
workpiece.
Be sure to physically drag the CUTTING TIP (D) on the
workpiece as you cut.
AC input power too low. Ensure plasma cutting machine has proper input power.
If used, eliminate or reduce length of extension cord.
PLASMA TORCH parts are
worn out.
Examine the consumables for wear and replace worn
parts with new Forney consumable parts.
Non-genuine
manufacturer’s parts.
Use only genuine Forney consumables for optimum
performance.
GROUND CABLE (4) is
disconnected.
Securely CLAMP the GROUND CABLE to the material
being cut, as close to the work area as possible.
Excessive dross.
Cutting speed too slow
(bottom dross).
Increase your torch travel speed.
Cutting speed too fast (top
dross).
Decrease your torch travel speed.
Cutting current too low. Ensure plasma cutting machine has proper input power.
If used, eliminate or reduce length of extension cord.
PLASMA TORCH parts are
worn out.
Examine the consumables for wear and replace worn
parts with new Forney consumable parts.
Non-genuine
manufacturer’s parts.
Use only genuine Forney consumables for optimum
performance.