Owner`s manual

OM-2218 Page 20
4-3. Lift-Arc And HF TIG Start Procedures
When Lift-Arc button light is On,
start arc as follows:
1 TIG Electrode
2 Workpiece
Touch tungsten electrode to work-
piece at weld start point, enable out-
put with torch trigger, foot control, or
hand control. Hold electrode to
workpiece for 1-2 seconds, and
slowly lift electrode. An arc will form
when electrode is lifted.
Normal open-circuit voltage is not
present before tungsten electrode
touches workpiece; only a low
sensing voltage is present between
electrode and workpiece. The
solid-state output contactor does
not energize until after electrode is
touching workpiece. This allows
electrode to touch workpiece with-
out overheating, sticking, or getting
contaminated.
When HF Start button light is On,
start arc as follows:
High frequency turns on to help
start arc when output is enabled.
High frequency turns off when arc is
started, and turns on whenever arc
is broken to help restart arc.
1
1 – 2
Seconds
“Touch”
Do NOT Strike Like A Match!
2
SECTION 5 – MAINTENANCE AND TROUBLESHOOTING
5-1. Routine Maintenance
YDisconnect power before maintaining.
.Maintain more often during severe conditions.
3 Months
Replace
unreadable
labels.
Clean and tighten
weld terminals.
Replace Damaged
Gas Hose
3 Months
Repair Or Replace
Cracked Cables
And Cords
6 Months
Blow out inside. During
heavy service clean
monthly.
YDo not remove case when
blowing out inside of unit
(see Section 5-2) .