5-4. Replacing Liner O-Ring
| Y Turn off welding power source. |
| Tools Needed: |
Head | 8 mm / 10 mm |
Tube |
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8 mm
Remove nozzle. Cut off wire | Open pressure assembly. Retract | . Hold wire tightly to keep it | ||
at contact tip, and remove | wire from liner onto spool. | from unraveling. Secure | ||
contact tip and tip adapter. |
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| end of wire at spool. | |||
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2 mm
Remove screws (3) from 
cover, and remove cover 
from wire drive assembly.
Black tubing end of liner. 
Loosen liner setscrew with allen wrench.
Pull end of liner out from housing groove, Lay gun cable straight on a flat surface. Pull liner until it exits the head tube. It is not necessary to completely remove liner from gun.
Twist handle locking ring counterclockwise 1/4 turn and slide it down cable. Separate gun handle by lifting top rear portion up and sliding forward over head tube.
2 mm
Collar
Loosen collar setscrew with allen wrench. Remove collar and
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