Kemppi KEMPACT Operation Instructions Manual

Contents

Kempact™ pulse 800 mVu automotiVe / 0709 – 7© Kemppi oy2.10. ADjUSTMENT OF TIGHTNESS OF SPOOL BRAkEBrake force can be adjusted through the hole in the spool hub’s locking device of spool hub byscrewing the control screw with a screwdriver. Adjust the braking force so that it is sufficient toprevent the wire from becoming too loose on the spool and spilling when the spool stops rotating.The greater the wire feed speed, the greater the braking force required. Do not keep the brakeunnecessarily tight, since this will impose a strain on the motor.2.11. SHIELDING GASThe MIG shielding gas consists of carbon dioxide, mixed gases and argon. Shielding gas flowrate is determined by the amount of welding current. The typical flow rate of gas in the weldingsteel is 8-15 l /min.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.2. Turn the press regulation screw (B) of the regulator until no spring pressure can be felt.3. Close the needle valve if there is one in the regulator.4. Install the regulator onto bottle valve and tighten the connecting nut (C) with a wrench.5. Install the hose spindle (D) and jacket nut (E) into the gas hose and tighten with a hoseclamp6. Connect the hose with the regulator and the other end with the wire feed unit. Tighten jacketnut.7. Open the bottle valve slowly. The gas bottle pressure meter (F) shows bottle pressure.Note! Do not use the whole contents of the bottle. The bottle pressure should be filled whenbottle pressure is 2 bar.8. Open the needle valve if there is one in the regulator.9. Turn the regulation screw (B) until the hose pressure meter (G) displays the required flow(or pressure). When regulating the flow amount, the power source should be switched onand the ”GAS PURGE” -switch pressed simultanously.Close the bottle valve after welding is finished. If the machine will not be in use for a long time,unscrew the pressure regulation screw.Always fasten the gas cylinder securely in an upright position on a wall rack intendedfor the purpose or on a cylinder cart. Always close the cylinder valve after you havefinished welding.A Gas bottle valveB Press regulation screwC Connecting nutD Hose spindleE Jacket nutF Gas bottle pressure meterG Gas hose pressure meter EBDCAFGA