Tweco CutMaster 35mm 40mm - Manual (Page 38)

CUTMASTER 40mm
OPERATION 4T-6 Manual 0-5118
3. In a portion of the unwanted metal start
the pierce off the cutting line and then
continue the cut onto the line. Hold the
torch perpendicular to the workpiece
after the pierce is complete.
4. Hold the torch away from your body.
5. Slide the trigger release toward the back
of the torch handle while simultaneously
squeezing the trigger. The pilot arc will
start.
A-02986
Trigger
Trigger Release
6. Bring the torch within transfer distance
to the work. The main arc will transfer to
the work, and the pilot arc will shut off.
NOTES
The gas preflow and postflow are a char-
acteristic of the power supply and not a
function of the torch.
When the shield cup is properly installed,
there is a slight gap between the shield
cup and the torch handle. Gas vents
through this gap as part of normal opera-
tion. Do not attempt to force the shield
cup to close this gap. Forcing the shield
cup against the torch head or torch handle
can damage components.
7. Clean spatter and scale from the shield
cup and the tip as soon as possible.
Spraying the shield cup in anti - spatter
compound will minimize the amount of
scale which adheres to it.
Cutting speed depends on material, thickness,
and the operator’s ability to accurately follow
the desired cut line. The following factors may
have an impact on system performance:
• Torch parts wear
• Air quality
• Line voltage fluctuations
• Torch standoff height
• Proper work cable connection
4T.05 Gouging
!
WARNING
Be sure the operator is equipped with
proper gloves, clothing, eye and ear
protection and that all safety precautions
at the front of this manual have been fol-
lowed. Make sure no part of the operator’s
body comes in contact with the workpiece
when the torch is activated.
Disconnect primary power to the system
before disassembling the torch, leads, or
power supply.
CAUTION
Sparks from plasma gouging can cause
damage to coated, painted or other sur-
faces such as glass, plastic, and metal.
Check torch parts. The torch parts must
correspond with the type of operation.
Refer to Section "4T.07 Parts Selection
for SL100 Torch Cutting".
Gouging Parameters
Gouging performance depends on parameters
such as torch travel speed, current level, lead angle
(the angle between the torch and workpiece), and
the distance between the torch tip and workpiece
(standoff).
CAUTION
Touching the torch tip or shield cup to the
work surface will cause excessive parts
wear.