EN2.10.1 installation of gas bottleEBDGA FCparts of gas flow regulatorA. Gas bottle valveB. Pressure regulation screwC. Connecting nutD. Hose spindleE. Jacket nutF. Gas bottle pressure meterG. Gas hose pressure meterNOTE! Always fasten gas bottle properly in vertical position in a special holder on the wall or on acarriage. Remember to close gas bottle valve after having finished welding.The following installation instructions are valid for most gas flow regulator types:1. Step aside and open the bottle valve (A) for a while to blow out possible impurities from thebottle valve. Note! Watch out for the gas flow.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 one end of the hose with the regulator and the other end with the power source.Tighten the jacket nut.7. Open bottle valve slowly. Gas bottle pressure meter (F) shows the bottle pressure. Note! Donot use the whole contents of the bottle. The bottle should be filled when the bottlepressure 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 switched on and the gunswitch pressed simultaneously.Close bottle valve after having finished welding. If the machine will be out of use for a longtime, unscrew the pressure regulation screw.3. OperaTiOnNOTE! Welding in places presenting an immediate fire or explosion hazard is forbidden!Welding fumes may cause injury, take care of sufficient ventilation during welding!3.1 weLding prOCeSSeS3.1.1 MMa weldingMMA welding, as well as carbon arc gouging, is possible with all Master MLS and MastertigMLS power sources with all MLS panel versions when switched to MMA process.8Master, MasterTig, MasterCool 10 / © Kemppi Oy / 1112