Miller Electric MC-80 Owner's Manual page 13

CAUTION
HITTING TORCH ON A HARD SURFACE to remove
spatter can damage torch.
Do not clean torch by hitting it against a hard surface.
Hitting hard surfaces can damage torch parts and stop proper
operation.
Install &
Connect Gouging Tip
Equipment
Turn On
Cutter
Gouging
EXAMPLE Of Gouging Operation
Use approx. 1/8 in (3 mm)
standoff distance at about
a 40 angle.
Adjust torch speed, arc length and angle as needed.
Direct sparks away from torch. Do not gouge too
deeply in one pass; make repeated passes if needed.
Figure 4-2. Sequence Of Plasma Arc Cutting (PAC)
Install Put On Personal
Safety
Equipment
Begin
Press trigger. After 2 seconds of
preflow, pilot arc starts.
Figure 4-3. Sequence Of Plasma Arc Gouging (PAG)
T I P AND EL ECT RO DE
RE CO M M E NDE D VAL UE S or OP E RAT I O N
WITHOUT TIP OR ELECTRODE can damage torch.
Inspect cup, tip, and electrode before cutting or whenever cutting
speed has been significantly reduced.
Do not operate torch without a tip or electrode in place.
Use correct standoff distance.
Do not cut with gouging tip.
Check Torch Check Gas/Air
Tip, Electrode,
And Shield Cup
If cutting arc is not started within 5 seconds of pilot arc, pilot
arc will go out. There is a 20-second reset time before the pilot
arc can be restarted.
Release trigger. Postflow continues for approx.
20 to 30 seconds. Gouging arc can be instantly
restarted during postflow by pressing trigger.
WEAR BEYO ND
Set
Pressure Controls
Establish arc length of 1/2 to 1-1/2 in
(13 - 38 mm), and slowly
start moving torch across metal.
OM-1592 Page 7
ST-800 968