Fastening The Ground Clamp - Würth MM 350 Traducción De Las Instucciones De Uso Original

Before taking into service (fig. I)
Welding torch connection
1. Connect the central plug [14] of the welding
torch [1] to the central socket [13].
Connecting the workpiece line
1. Connect the workpiece line [15] to the ground
connection [16].
2. Secure the workpiece line [15] by turning it to
the right.
3. Fasten the ground clamp [12] to the welding
bench or workpiece so that good conductivity
is ensured.

Fastening the ground clamp

Fasten the ground clamp [12] in the immediate
■
vicinity to the welding spot.
Make sure the connection between ground
clamp and workpiece is tight and allows for
good conductivity.
Never put the ground clamp on the
welding machine or the gas cylinder as
otherwise the welding current would
be led through the protective conductor
connections and destroy them.
Connecting to the mains supply
Plug the plug into a suitable socket.
The fuse must conform with the
technical data.
Inserting the welding wire coil (fig. II)
1. Remove the side cover [11] and slacken the nut
[29] of the spool [27].
2. Put the welding wire coil on the spool [27].
Make sure the wire pick-up [26] engages.
Use an adapter for small welding wire coils.
3. Set the wire brake [28] so that the welding wire
coil stops when the welding torch button is re-
leased.
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Threading the wire electrode (fig. II)
1. Screw off and remove the power nozzle from
2. Open the side cover [11].
3. Shift the levers [21] to the front
4. Thread the wire electrode through the feed noz-
5. Fold open the swivel arms [23] and fasten it us-
6. Switch on the appliance with the main switch [40].
7. Stretch out the torch hose.
8. Push the wirefeed button [24].
9. Use the adjustment screws [20] to find a contact
10. The wirefeed roll [22] pressure on the central
11. Press the wirefeed button [24] until the wire pro-
12. Screw the power nozzle suitable for the wire
Connecting the shielding gas cylinder
1. Place the shielding gas cylinder [3] on the stand
2. Open the valve of the gas cylinder [4] several
3. Connect the pressure reducer [7] to the shielding
4. Connect the shielding gas hose [8] to the pres-
5. Open the valve of the gas cylinder [4].
3 Set the gas flow while pressing the welding
3 The amount of gas left in the cylinder is indi-
the welding torch [1].
zle [25] and the central socket [13]
3 4
ing the levers [21]
pressure setting which just allows the wirefeed
rolls [22] to rotate while the welding wire coil
is held.
socket [13] end should be greater than that on
the feed nozzle [25] end so as to keep the wire
electrode within the feeding unit under tension.
The wire must not be pinched or
deformed.
trudes 20 mm out of the torch neck.
thickness into the torch [1] and cut off the pro-
truding piece of wire.
and secure it using the safety chain [2].
times in rapid succession so that dirt particles, if
any, are blown out.
gas cylinder [3].
sure reducer [7] using the screw connection.
torch button at the setting screw [9] of the pres-
sure reducer [7].
The amount of gas is indicated at the flow
meter [6].
Amount of gas = Wire diameter x 10 l/min.
cated at the pressure gauge [5].
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2
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