ENCONTENTS1. Introduction ......................................................................................................................... 31.1 General ....................................................................................................................................... 31.2 Product introduction ............................................................................................................ 31.3 Machine introduction ........................................................................................................... 42. Installation............................................................................................................................. 52.1 Before use .................................................................................................................................. 52.2 Positioning of the machine ................................................................................................ 52.3 Distribution network ............................................................................................................. 52.4 Welding and earth return cable connections .............................................................. 62.4.1 Choosing welding polarity in MMA welding ................................................................. 62.4.2 Choosing welding polarity in TIG welding..................................................................... 62.4.3 Earthing ............................................................................................................................ 63. Operation ............................................................................................................................... 63.1 Welding processes ................................................................................................................. 63.1.1 MMA welding ................................................................................................................... 63.1.2 TIG welding ...................................................................................................................... 63.2 Operation functions .............................................................................................................. 73.2.1 Power source .................................................................................................................... 73.2.2 Control panel and SETUP functions ............................................................................... 73.2.3 Activation and setup parameter adjustment ................................................................ 83.3 MMA welding ........................................................................................................................... 93.3.1 Filler materials and equipment ....................................................................................... 93.3.2 Earth return cable and clamp ......................................................................................... 93.3.3 Manual metal arc welding (MMA) .................................................................................. 93.3.4 Electrode welding parameter table.............................................................................. 103.3.5 Arc force ......................................................................................................................... 103.3.6 Hot start.......................................................................................................................... 103.4 TIG welding ............................................................................................................................. 113.5 Carbon arc gouging............................................................................................................. 123.6 Wireless remote..................................................................................................................... 124. Maintenance ...................................................................................................................... 134.1 Regular maintenance .......................................................................................................... 134.1.1 Every six months ............................................................................................................ 134.2 Service contract .................................................................................................................... 134.3 Storage ..................................................................................................................................... 134.4 Disposal of the machine .................................................................................................... 135. Troubleshooting .............................................................................................................. 145.1 Troubleshooting ................................................................................................................... 145.2 Control panel error codes ................................................................................................. 156. Ordering codes................................................................................................................. 167. Technical data ................................................................................................................... 16Master S 400, 5002