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SLICE EXOTHERMIC CUTTING EQUIPMENT
CAUTION
!
Constant-voltage power supplies should not be used with exothermic cut-
ting equipment. When the exothermic cutting rod contacts the workpiece,
the power supply is dead shorted, causing maximum amperage output of
the power supply. This surge can exceed the rated output of the machine
and the recommended amperage for powered exothermic cutting.
1. Connect the torch to one terminal, then connect a welding ground clamp to the other terminal
of a CC (Constant Current) welding power source.
2. Attach the ground clamp to the workpiece. Unlike other processes, this process uses either
a welding power source set for DCEP (reverse polarity) or DCEN (straight polarity). AC
(alternating current) power supplies can also be used without affecting cutting performance.
Do not cut with power using a constant-potential power source.
3. Insert the cutting rod into the collet and tighten. Start the oxygen flow, touch the rod tip to
the workpiece, and begin cutting. Hold the cutting rod at a 45° to 80° drag angle from the
workpiece surface.
4. Depress the torch oxygen valve lever and check for oxygen leaks around the Collet Nut.
5. As the cut proceeds, make slight contact between the burning rod and the workpiece. This
placement requires two motions:
a. Inward towards the workpiece as the rod is consumed
b. In the direction of cut
Use a protective lens shade #10 or higher to protect from arc flash.
6.03 Hole Piercing
Perform most piercing operations without power.
1. Remove the Collet Nut Assembly from the front of the torch and remove the brass collet,
washer and spark arrestor from the torch.
2. Attach the Collet Extension Assembly to the front end of the torch and once tightened re-
install the spark arrestor, washer and brass collet into the assembly.
3. Slide the Extension Shield over the Collet Extension Assembly until it bottoms out against
the metal ring on the assembly.
4. Reinstall the Collet Nut Assembly onto the Collet Extension Assembly.
5. Insert the SLICE cutting rod into the torch and tighten the Collet Nut Assembly. Tap the SLICE
rod against the work surface and tighten the Collet Nut again, this ensures the cutting rod
is seated against the rubber washer.
6. Ignite the cutting rod as explained in the "Cutting without Power" section.
7. Move the burning rod to the pierce point and, with the rod angled away from the operator,
begin piercing the hole.
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