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Component Identification and Explanation
NOTICE:
The following sections cover MIG, TIG, and Stick terms, denitions, and basic operation.
Some of the terms overlap from process to process and serve essentially the same functions.
Take note that some terms will repeat from process to process, but will be described in a way
that is specic to the process being used. In some cases where function is identical or so
similar to the same function found relating to another process it may not be repeated or rede-
ned. For example, the 2T/4T torch switch function applies to both MIG and TIG, and it be-
haves similarly for each. However, there are slight differences to what it controls The general
description under MIG and TIG will describe it slightly differently to accommodate the opera-
tional differences, but in the main drawing and discussion, the function will be more generic to
accommodate both processes.
NOTICE:
This unit features a slow run-in. This means the wire will feed slowly until the arc is started. It
is used to improve arc initiation and reduce weld porosity which results in poor fusion during
the arc starting process. Once the arc is sensed, the wire speed will ramp up and weld at the
selected wire speed.
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