Torch Connection - NURIS MIG 550 RWS Operational Manual

Figure 3.2. Wire feeder unit
rear view

2.3. TORCH CONNECTION

Connect the torch to the connector (Figure 1-l) and tighten the plastic screw gently for
a proper connection.
Connect the cooling pipes of the torch to the quick couplings (Figure 1-h) and (Figure 1-
i) in front of the wire feeder unit.
Connect the chassis cable into (Figure 1-f) or (Figure 1-g). The chassis cable should be
connected to the work piece with the lowest possible electrical resistance for proper
welding.
Connect the end of the negative cable to the negative output terminal of the machinery.
WARNING: Never use water-cooled torches without water cooling.
Otherwise, the torch may be damaged.
Connect the water-cooling tubes between the power unit and
wire feeder unit (Figure 3.1-) (Figure 3.2-c) using the extension
cable provided by the product (the connections are at the rear
of the wire feeder unit and welding power supply unit). The
color coding of the extension cable and the quick coupling of the
units should match. Check this point twice (blue and red).
Connect the wire feeder unit power connector (Figure 3.1-b)
(Figure 3.2-b) and lock it with the metal locker on the
connector.
Connect the gas supply connector (Figure 3.1-a) (Figure 3.2-a).
Finally, connect the torch welding current cable (Figure 3.1-d)
(Figure 3.2-d) and fix it firmly.
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08/2022 Rev. 1.3