Thermal Dynamics SL100 HAND TORCH, Инструкция по эксплуатации

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OPERATION 4-4 Manual 0-2962
E. Dross
When dross is present on carbon steel, it is commonly
referred to as either “high speed, slow speed, or top
dross”. Dross present on top of the plate is normally
caused by too great a torch to plate distance. "Top
dross" is normally very easy to remove and can often
be wiped off with a welding glove. "Slow speed
dross" is normally present on the bottom edge of the
plate. It can vary from a light to heavy bead, but
does not adhere tightly to the cut edge, and can be
easily scraped off. "High speed dross" usually forms
a narrow bead along the bottom of the cut edge and
is very difficult to remove. When cutting a trouble-
some steel, it is sometimes useful to reduce the cut-
ting speed to produce "slow speed dross". Any re-
sultant cleanup can be accomplished by scraping, not
grinding.
4.07 Hand Torch Operation
A. Standoff Cutting With Hand Torch
NOTE
For best performance and parts life, always use the
correct parts for the type of operation.
1. The torch can be comfortably held in one hand or
steadied with two hands. Position the hand to
press the Trigger on the torch handle. With the
hand torch, the hand may be positioned close to
the torch head for maximum control or near the
back end for maximum heat protection. Choose
the holding technique that feels most comfortable
and allows good control and movement.
NOTE
The tip should never come in contact with the work-
piece except during drag cutting operations.
2. Depending on the cutting operation, do one of the
following:
a. For edge starts , hold the torch perpendicular
to the workpiece with the front of the tip on
the edge of the workpiece at the point where
the cut is to start.
b. For standoff cutting, hold the torch 1/8 - 3/8
in (3-9 mm) from the workpiece as shown be-
low.
A-00024
Shield Cup
Torch
Standoff
Distance 1/8" - 3/8"
Standoff Distance
3. Hold the torch away from your body.
4. 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
5. Bring the torch within transfer distance to the
work. The main arc will transfer to the work, and
the pilot arc will shut off.
NOTE
The gas preflow and postflow are a characteristic
of the power supply and not a function of the torch.