ESAB Aristo RoboFeed 3004HW, Инструкция по эксплуатации, Страница: 14 / 26

5 OPERATION
0463 280 201
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© ESAB AB 2014
5.3 Replacing and inserting wire
• Open the side panel.
• Disconnect the pressure sensor by folding it backwards, the pressure rollers slide up.
• Straighten out the new wire 10-20 cm. File off any burrs and sharp edges from the end
of the wire before inserting it into the wire feed unit.
• Make sure that the wire goes properly into the feed roller's track and into the outflow
nozzle or wire guide.
• Secure the pressure sensor.
• Close the side panel.
WARNING!
Risk of crushing when replacing the wire bobbin! Do not use safety gloves when
inserting the welding wire between the feed rollers.
5.4 Changing feed rollers
1. Open the side panel.
2. Disconnect the pressure sensor (A) by folding it
backwards.
The pressure rollers slide up.
3. Disconnect the pressure rollers (B) by turning the axle (C)
1/4 turn clockwise and pulling out the axle.
The pressure rollers disconnect.
4. Disconnect the feed rollers (D) by unscrewing the nuts (E)
and pulling out the rollers.
Install the new feed rollers, by repeating the above-mentioned
steps in the reverse order.
5.5 Pressure guard
The pressure guard interrupts the ongoing welding process if the gas flow drops below
5.0 l/min (approximately 0.2 bar pressure). When this occurs, an error message is displayed
via the control unit.
5.5.1 Adjusting the gas pressure pre-set value for the pressure guard
This instruction applies to pressure guard with ordering no.
0465 490 001.
1. Connect a gas flow meter (ordering no. 0155 716 880) in series
with the welding torch.
2. Open the gas to the preferred flow.
3. Connect a multimeter over the pressure guard.
4. Turn the adjusting screw on the pressure guard until you reach
the break point.
5. Repeat the test if needed.
6. After having set the correct pre-set value, fasten the adjusting
screw using thread locker (Loctite 243 or equivalent).