- 8 -
PLACEMENT OF THE MACHINE
When choosing the position of the machine placement, be careful to prevent the machine from conducting impu-
rities and getting them inside (for example flying particles from the grinding tool).
CONNECTION OF THE MACHINE TO ELECTRICAL SUPPLY
The MW2050, MW2070 and MW3050 MIG machines comply with safety class I requirements. This means that all
metal parts, which are accessible without the necessity to take off the cover, are connected to protective ground-
ing of the electrical supply. The machine can be connected to power supply only by a cable with a socket equipped
with a protective ground contact. Always turn the machine on and off with the main switch! Do not use for turning
off the terminating unit! The necessary protection is listed in the chapter “technical data”.
WELDING TORCH CENNECTION
Check whether there is the correct liner in the welding torch for the size of welding wire you are using. Use only
wires, which are properly rated for the particular machine output. Insert the torch into the euro-connector A2
(picture 1) and secure it with a sleeve nut.
EARTH CABLE CONNECTION
Use cable with sufficient cross-section (see chapter „technical data“. Connect cable into clamp A1 (pic. 1). The
cable should be as short as possible and placed at the floor level or near it.
Place the grounding clamp directly on the welded part (if possible). The touching surface must be clean and as big
as possible - it must be cleaned from paint and rust.
SHIELDING GAS AND GAS BOTTLE INSTALLATION
Use inert gases (Pure argon for Aluminium, 2 - 2.5% CO2 in Argon for stainless steel, and 5 - 20% CO2 in Argon on
mild steels depending on thickness of material) as a shielding gas for MIG welding. Make sure that gas regulator is
correct for the type of the gas you are using.
Gas bottle installation
