ENGLISH
OM-230 915 Page 7
5-2.
Grinding And Cutting Electrodes
804 719
!
Grinding the tungsten electrode
produces dust and flying sparks
which can cause injury and start
fires. Use local exhaust (forced
ventilation) at the grinder or wear
an approved respirator.
Read MSDS for safety informa-
tion. Consider using tungsten
containing ceria, lanthana, or yt-
tria instead of thoria. Grinding
dust from thoriated electrodes
contains low-level radioactive
material. Properly dispose of
grinder dust in an environmen-
tally safe way. Wear proper face,
hand, and body protection. Keep
flammables away.
Do not exert excessive pressure on
the grinding wheel or the life of the
wheel will be shortened.
Use a rough grinding wheel to
sharpen large electrodes.
Wait until grinding wheel stops be-
fore restarting grinder.
1
Tungsten Electrode
To Sharpen Electrode:
Determine diameter of electrode and
desired sharpening angle.
Turn on grinder. Insert electrode in cor-
responding hole in grinder.
Slowly turn the electrode until tip is
sharpened evenly. If the electrode is not
turned the tip will be flat ground to the
selected angle.
To Face Grind Electrode:
Determine diameter of electrode.
Turn on grinder. Insert electrode in cor-
responding hole at front of grinding
head. Grind the electrode tip until
square.
To Cut Electrode To Length:
(For Orbital Or Manual Welding):
2
Cutting Slot
Turn on grinder. Insert electrode in cut-
ting slot and turn electrode slowly until
cut.
An optional cutting device is avail-
able for larger electrodes. See Sec-
tion 7.
Turn grinder off.
Sharpening Electrode
Face Grinding Electrode
Cutting Electrode To Length
1
1
1
2
