Service manual

Edition 101222
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s2Cad160
WARNING!
Do not keep the torch near the ears or the face during wire feeding, as this may
result in personal injury.
1.1.1 Changing the feed roller groove
The machine is delivered with the feed roller set for ∅ 0.8/1.0mm welding wire. If you
want to use it for ∅ 0.6mm wire you must change the groove in the feed roller.
1. Fold back the pressure device to release the pressure roller.
2. Switch on the machine and press the torch trigger to position the feed roller so
that the locking screw is visible.
3. Switch off the machine.
4. Use a 2mm Allen key to open the locking screw about half a turn.
5. Pull the feed roller off the shaft and turn it around. See marking on the side of the
feed roller for suitable wire diameters.
6. Put the roller back on the shaft and make sure it goes all the way in. You may
need to turn the roller to position the locking screw over the flat surface of the
shaft.
7. Tighten the locking screw.
Shielding gas
Mixture of carbon dioxide and argon or pure carbon dioxide can be used as shielding
gases.
Overheating protection
Overheating is indicated by lamp 3. A thermal overload cutout protects the unit against
overheating by disabling the welding if overheating occurs. The cutout resets automati-
cally when the unit has cooled.
MAINTENANCE
Regular maintenance is important for safe, reliable operation.
Note!
All guarantee undertakings from the supplier cease to apply if the customer himself
attempts any work in the product during the guarantee period in order to rectify any
faults.
Inspection and cleaning
Check regularly that the power source is free from dirt.
The power source should be regularly blown clean using dry compressed air at reduced
pressure. More frequently in dirty environments.
Otherwise the air inlet/outlet may become blocked and cause overheating.