© ESAB AB 2005
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bg17e
Cleaning the liner, swan neck and feed roller
IMPORTANT! Switch off the cooling unit when cleaning.
S Disconnect the cable assembly from the wire feed unit and lay it out straight.
S Unscrew the nut and pull out the wire liner. Remove and clean the other parts of
the swan neck.
S Blow compressed air through the wire liner from both ends in order to remove
wire shavings.
S Reinsert the liner into the cable assembly and screw the nut back on.
Point the gun's swan neck downwards to avoid water running back into the gun. In
the connector/swan neck is a wear tube. This should be blown clean regularly or
replaced once deep grooves have been worn by the wire.
Clean the feeding mechanism as required. Using compressed air requires maximum
caution to ensure no parts become damaged.
Remove the feed roller (see point 6.4) and clean the roller tracks using a wire brush.
8 FAULT-TRACING
Please also read the operating instructions for the welding components, e.g. power
source and wire feed unit.
If the measures described below are not successful, please consult your dealer or
the manufacturer.
Problem Cause Solution
Welding gun becomes
too hot
S Contact tip not tight enough.
S Electrical connections to the
gun and to the workpiece are
loose.
S Check and tighten.
S Check and tighten.
No trigger function S Control cable interrupted/faulty. S Check/repair.
Wire burnt back onto
the contact tip at stop
S Wrong burn back time set.
S Worn contact tip.
S Decrease the burn back time.
S Replace.
Irregular wire feed S Liner blocked.
S Contact tip and wire diameter
do not match.
S Wrong tension set on the wire
feed unit.
S Blow through in both directions.
S Replace contact tip.
S Correct according to
manufacturer's instructions.
Short arc between the
gas nozzle and
workpiece
S Spatter bridge between the
contact tip and gas nozzle.
S Clean and spray the inside of
the gas nozzle.
GB
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