Section 7 - Replacement; Changing Consumables - Bernard T-Gun 445-45 Owner's Manual

7-1 Changing Consumables

IMPORTANT:
Neck insulator must be in place before welding to maintain insulation of neck armor.
l
Be sure all parts are tightened well before welding.
l
When using the heavy duty retaining head, make sure it is tightened with a 5/8" wrench to prevent overheating of contact tip.
l
To prevent scoring on heavy duty retaining heads, do not use pliers.
l
A. Removal and Replacement
1. Pull slip-on nozzles off with a clockwise twisting motion.
2. When insulating nozzle, exposed insulator should nest inside
neck insulator to assure concentricity.
SECTION 7 — REPLACEMENT
400 amp
3. Neck insulators are positioned on the end of the neck with the
4. Replace nozzle retainer with deep counter bore toward the
large insulated counter bore facing the nozzle.
neck. Tighten until retainer and neck insulator are secure.
TG408-1.2 15