Installing Gas Bottle; Main Switch I/O - Kemppi FastMig MSF 53 Operating Manual

2.10.1 Installing gas bottle

NOTE! Always fasten gas bottle properly in vertical position in a special holder on the wall or on a
carriage. Remember to close gas bottle valve after having finished welding.
Parts of gas flow regulator
A Gas bottle valve
B Press regulation screw
C Connecting nut
D Hose spindle
E Jacket nut
F Gas bottle pressure meter
G Gas hose pressure meter
EN The following installing instructions are valid for most of the gas flow regulator types:
1. Step aside and open the bottle valve (A) for a while to blow out possible impurities from
the bottle valve.
2. Turn the press regulation screw (B) of the regulator until no spring pressure can be felt.
3. Close needle valve, if there is one in the regulator.
4. Install the regulator on bottle valve and tighten connecting nut (C) with a wrench.
5. Install hose spindle (D) and jacket nut (E) into gas hose and tighten with hose clamp.
6. Connect the hose with the regulator and the other end with the wire feed unit. Tighten
the jacket nut.
7. Open bottle valve slowly. Gas bottle pressure meter (F) shows the bottle pressure.
Note! Do not use the whole contents of the bottle. The bottle should be filled when the
bottle pressure is 2 bar.
8. Open needle valve if there is one in the regulator.
9. Turn regulation screw (B) until hose pressure meter (G) shows the required flow (or
pressure). When regulating flow amount, the power source should be in switched on and
the gun switch pressed simultaneously.
Close bottle valve after having finished welding. If the machine will be out of use for a long
time, unscrew the pressure regulation screw.

2.11 MAIN SWITCH I/O

When you turn the main switch of the Kemppi FastMig™ power source into I-position, the pilot
lamp closest to this switch will light up, indicating the power source is ready for welding. The
equipment is returned to the position which it last carried out before the main switch was
turned to zero position.
NOTE!
Always start and switch off the machine with the main switch, never use the mains plug as
a switch.
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A
F
C
G
B
E
D