Compressed Air - Praxair MIG SELECT-300H/4R Guide De L'utilisateur

6 - Connect earth cable to central inductance plug of
Mig machine and to working piece.
- Check the correct electrical contact from earth clamp
and workpiece.
8 - Place carbon electrode on electrode holder.
Carbon electrode diameter
Air valve
11 - Connect machine, open electrode holder air compressed valve. The machine is ready to work.
12 – To allow arc ignition, make electrode contact with workpiece, respecting the recommended angles.
10
MIG SELECT 300H/4R / 350H/4R / 400H/4R / 500H/4R / 650H/4R
Ø 4 mm
Ø 5 mm
Ø 6 mm
10 – Adjust the commutators according this table.
7 – Press key button (2) until indicator arcair (1) lights
on.

Compressed air

9 - Check direction of compressed air towards workpiece
Adjust power switches according table
Current scope
150 – 200 A
200 – 250 A
320 – 370 A
Cutting recommended angle
Gouging recommended angle
Power switch positions
7A – 8A – 8D
8A – 8C – 8D
7A – 7D – 8D
70/80º
35º