Miller Maxstar 140, Руководство пользователя

Страница: 22 / 44

OM-2224 Page 18
3-2. Lift-Arc
t
TIG Procedure
With Process Switch in the Lift-Arc
TIG position, start an arc as
follows:
1 TIG Electrode
2 Workpiece
Touch tungsten electrode to work-
piece at weld start point, hold
electrode to workpiece for 1-2
seconds, and slowly lift electrode.
An arc will form when electrode is
lifted.
Open-circuit voltage is present be-
fore tungsten electrode touches
workpiece. However, the arc will
not initiate until after the electrode
is lifted from workpiece. This al-
lows electrode to touch workpiece
without overheating, sticking, or
getting contaminated.
1
1 – 2
Seconds
“Touch”
Do NOT Strike Like A Match!
2
Ref. S-156 279
SECTION 4 – MAINTENANCE AND TROUBLESHOOTING
4-1. Routine Maintenance
Y
Disconnect 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.
Y
Do not remove case when
blowing out inside of unit
(see Section 4-2) .