39
Having trouble setting up your unit for best cutting? Try the following:
•
Keep your standoff to less than
1/8”
distance from the work piece.
•
Always use dry air. Drain compressor daily to improve effectiveness of air dryers and to prevent
them from prematurely failing.
•
Make sure work clamp is attached directly to the part being cut. Make sure the work clamp is
attached to freshly cleaned metal.
•
Don
’
t greatly lower air pressure to try to reduce kerf or cut thinner material. Always reduce noz-
zle orifice size to match amperage. See Torch pages for different consumable sizes.
•
Use this as a general rule of thumb for good hand cutting speed and quality:
1. For the first
1/8”
of thickness, use 20 amps.
2. After the first
1/8”
add 10 amps for every
1/8”
after that.
3. For Stainless and Aluminum, use settings that are 40% higher.
Section 3 Troubleshooting
NOTICE:
The pilot arc is not designed to be used to cut. The pilot arc is used to scour the surface to establish continuity so that the cutting
arc will transfer. If you experience difficulty cutting and the arc seems to barely penetrate the metal, cutting speed is slow, or the
consumable is wearing extremely fast, it is likely that the cutting arc has not engaged. While the pilot arc is engaged, the amper-
age is always going to drop to 20
-
27 amps. If you notice the output amperage at this level while firing the torch or briefly before
cutting, do not be alarmed. This is normal. The reduction in amperage prevents the consumables from being damaged. When
continuity is sensed, the cutting amperage will increase as the arc transfers from torch to the metal. If amperage does not in-
crease while cutting, and amperage is set over 27 amps, it is likely that the pilot arc is not transferring to the metal. Check for
proper connection of the work clamp. Connect it directly to piece of metal being cut. Do not rely on an indirect connection
through a work bench table. If necessary, grind a clean place on the metal to expose fresh, un
-
oxidized area of metal to make the
best possible connection.
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