14
TROUBLE SHOOTING
Symptom
Possible cause
Suggested Solution
Difficulty cutting through
the work piece
The cutting current is too low
Refer to 'cutting guide
instructions' for correct plasma
cutting settings
The cutting speed is to rapid
Slow down the cutting speed
Torch electrode or nozzle are
burned out or blocked
Clogged nozzle tips can be
unclogged using a needle file or
replacing if unclogging is
unsuccessful. Burned out
electrodes must be replaced.
Incorrect cutting technique has
been used
Ensure the nozzle tip is held
exactly 90 degrees to the work
piece (refer to photo)
Work piece overheating,
resulting in metal residue
(slag) building up or
dripping off the work piece
Cutting speed is too slow
Increase cutting speed
Cutting current and air pressure
are too high for the application
Refer to 'cutting guide
instructions' for correct plasma
cutting settings
Plasma arc is inconsistent
Current and air pressure settings
are incorrectly matched
Please refer to 'cutting guide'
Torch electrode or nozzle are
burned out or blocked
Clogged nozzle tips can be
unclogged using a needle file or
replacing if unclogging is
unsuccessful. Burned out
electrodes must be replaced.
Poor contact or connection
between ground cable and
work piece
Ensure connection is firm and
contact point is free from paint
or solvents
Rough cutting finish on
work piece
Torch electrode or nozzle are
burned out or blocked
Clogged nozzle tips can be unclogged
using a needle file or replacing if
unclogging is unsuccessful. Burned out
electrodes must be replaced.
Excessive movement of the gun
during cutting
Use a guide/straight edge
Cutting speed is too slow
Refer to cutting guide for correct
cutting speeds
Incorrect cutting technique has
been used
Ensure the nozzle tip is held exactly
90 degrees to the work piece (refer
to photo)
Poor contact or connection
between ground cable and
work piece
Ensure connection is firm and
contact point is free from paint
or solvents
