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16
CLEANING THE WIRE GUIDE
Pressure of the feed rolls remove metal dust from the ller wire's surface which
then nds its way to the wire guide. If the wire guide is not cleaned, it gradually
clogs up and causes wire feed malfunctions. Clean the wire guide in the following
manner:
1. Remove the welding gun's gas nozzle, contact tip and contact tip's adapter.
2. With a pneumatic pistol, blow compressed air though the wire guide.
3. Blow the wire feed mechanism and reel housing clean with compressed air.
4. Reattach the welding gun's parts. Tighten the contact tip and contact tip's adapter
to spanner tightness.
CHANGING THE WIRE GUIDE
If the wire guide is too worn or totally clogged, change it to a new one accrding
to the following instructions:
1. Disconnect the welding gun from the machine.
a. Disconnect the cable clamp of the gun's power cable by opening the screws.
b. Disconnect the gun's power cable from the machine's pole.
c. Disconnect the connector of the trigger conductors from the machine.
d. Open the gun's mounting nut.
e. Extract the gun gently from the machine where upon all parts come through
the front part's cable hole.
2. Open the mounting nut of the wire guide which exposes the end of the wire guide.
3. Straighten the welding gun's cable and withdraw the wire guide from the gun.
4. Push a new wire guide in to the gun. Make sure that the wire guide enters all the
way into the contact tip's adapter and that there is an o-ring at the machine end
of the guide.
5. Tighten the wire guide in place with the mounting nut.
6. Cut the wire guide 2 mm from the mounting nut and le the sharp edges of the
cut round.
7. Re-attach the gun in place and tighten the parts to spanner tightness.
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