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OM-1592 Page 6
CAUTION
TIP AND ELECTRODE WEAR BEYOND
RECOMMENDED VALUES or OPERATION
WITHOUT TIP OR ELECTRODE can damage
torch.
• Inspect cup, tip, and electrode before cutting or whenever cutting
speed has been significantly reduced (see Section 5-2).
• Do not operate torch without a tip or electrode in place.
INCORRECT PIERCING can damage torch.
• When piercing (starting a cut away from metal edge) use a slight
standoff distance and hold torch at about 10° angle to prevent
sparks from reflecting back at torch.
INCORRECT STANDOFF DISTANCE can damage
torch.
• For cutting, always use approximately 1/8 in (3 mm) standoff
distance between torch tip and workpiece.
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.
HAVING PILOT ARC TURN ON AND OFF
REPEATEDLY, such as during the cutting of chain
fence, will shorten tip, electrode, and torch life.
• Put a continuous piece of sheet metal under the fence to prevent
pilot arc from cycling on and off.
• Avoid constant starting and restarting of the arc.
Check Torch
Tip, Electrode,
And Shield Cup
Install standoff guide, place After cutting arc starts, slowly
start moving torch across metal.
Adjust torch speed so
sparks go thru metal and
out bottom of cut.
Pause briefly at end of
cut before releasing trigger.
guide onto metal so that torch
tip lines up with edge of metal
Install &
Connect
Equipment
Check Gas/Air
Pressure
Set
Controls
Begin
Cutting
EXAMPLE Of Cutting Operation
ST-800 967-A
Turn On
Cutter
Put On Personal
Safety
Equipment
Press trigger. After 2 seconds
of preflow, pilot arc starts.
Postflow continues for approx. 20 to
30 seconds after releasing trigger;
cutting arc can be instantly restarted
during postflow by pressing trigger.
and standoff distance is
approx. 1/8 in.
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.