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Expressweld MasterMIG 250CT
9.4 Connecting Shielding Gas Cylinder to Welding Machine
To provide shielding gas to wire feeder system and welding torch, it is necessary to
connect "Shielding Gas Hose" to "Shielding Gas Inlet Socket" located in the rear of
welding machine. At the end of gas hose, there is a pipe connection.
9.5 Installing Welding Wire
Place the "Wire Feed Speed Setting Button" located in the front panel of welding
machine to "O" position.
Make sure that the torch equipment (spiral and nozzle) is suitable for the welding wire
being used and connect the welding torch to "Torch Connector" located in the front
panel of welding machine.
After matching wire drive reels to each other which are suitable for the wire diameter and
wire type being used, connect the reels to their place within wire feeder system.
Installing Welding Wire to Connecting Rod
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Open the side cover of wire feeder unit.
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Insert the welding wire reel to "Welding Wire Reel Connecting Rod" as the end of the
wire will be on the lower part of reel.
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If necessary, set the braking (tightening) torque of "Welding Wire Reel Connecting
Rod". When the reel stops, it shouldn't freely turn around the connection axis.
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Cut the twisted end of the wire and file the sharp corners.
Inserting Welding Wire to Wire Feeder Reels
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Release the "Wire Feed Reel Press Forced Setting Spindle" by loosening.
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Run the welding wire through the "Wire Inlet Guide" of wire feeder system.
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Install the welding wire to "Wire Outlet Guide" by running through wire drive reels.
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After setting the press force by fixing again the "Wire Feed Reel Press Forced Setting
Spindle", start the machine with "On/Off Switch" located in the front panel of welding
machine.
Adjusting Press Force of Wire Drive Reel
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Properly set the press force of reels. If the press force is too low, wire slips on reels; if the
press force is too high, reels crushes the wire or wire jams in. Press force increases
when driver reel press force setting turned clockwise, when turned counter clockwise
press force decreases.
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