TM 9-3405-215-14&P
CHAPTER 6
ACCESSORIES
ETCHING PENCIL
The Etching Pencil is used with the butt welder to mark tools, jigs, fixtures, templates, etc.
To use the etching pencil:
(1)
Clamp cable end of etching pencil in welder stationary jaw. Move weld lever up to "anneal" position.
(2)
Press the anneal and etching pushbutton and clamp the button down with the etching pencil clamp. This closes the
circuit through the welder and also grounds the etching current through the machine.
(3)
Place the work to be marked on the table of the machine. Since the machine is "grounded" there is no second lead
required to the work.
(4)
Etch with sufficient pressure to prevent the point from arcing, but not great enough to destroy the copper point. The
copper point should be kept sharp to secure best results.
Using the Etching Pencil.
124
