Maintenence; Nozzle And Contact Tip Systems; Liner Replacement - ESAB Gun Master 400 Manual De Instrucciones

sectIon 4

4.1 NOZZLE AND CONTACT TIP SYSTEMS

IMPORTANT
• Shock washer must be in place before welding to maintain insulation of gooseneck armor.
•
Be sure all parts are tightened before welding.
Removal and Replacement
•
Pull slip-on nozzles off with a clockwise twisting motion.
•
When installing nozzle, exposed insulator should nest inside shock washer to assure concentricity.
•
Shock washers are positioned on the end of the gooseneck with the large insulated counterbore facing the
nozzle.
•
replace nozzle retainer with deep counterbore toward the gooseneck. Tighten until retainer and shock
washer are secure.

4.2 LINER REPLACEMENT

step #1
note: ensure power supply is off and gun is removed from feeder before proceeding.
•
remove nozzle, tip and gas diffuser.
•
using a 10 mm wrench, turn thread-in liner collet counter-clockwise until liner is free from the power pin.
•
With gun straightened, grip conduit liner with pliers and remove
.
5
maIntenance
conDuiT liner