Changing The Liner - Bernard T-Gun 445-45 Owner's Manual

7-4 Changing the Liner

NOTE: For guns equipped with thread-in power pins, Bernard or
Euro connectors, the procedure is the same. On Miller style power
pins, liner is held captive by a guide cap with must be removed and
replaced with changing liner.
IMPORTANT: Ensure power supply is off and gun is removed from
feeder before proceeding.
1. Remove nozzle, contact tip and retaining head.
2. If power pin:
a. Uses a liner set screw: Loosen the set screw using 5/64"
Allen wrench.
b. Is thread-in liner type: Using a 10 mm wrench, turn
thread-in liner retainer counterclockwise until liner is free
from the power pin.
3. With gun straightened, grip conduit liner with pliers and
remove.
4. Feed replacement liner through gun using short strokes to
avoid kinking. Twist liner clockwise if necessary.
5. Using a 10 mm wrench, turn thread-in liner retainer in a
clockwise direction and tighten in power pin.
6. Push liner back into gun and hold in place.
7. Trim conduit liner with a 3/4" (19 mm) stick-out.
8. Remove any burr that may obstruct wire feed, especially on flat
wire type conduit liner.
9. Replace nozzle, contact tip and retaining head onto neck.
18 TG408-1.2
Figure 7-E
Figure 7-F
Figure 7-G