Installing Power Pin To Gun - Bernard T-Gun 450 Owner's Manual

6-3 Installing Power Pin to Gun

IMPORTANT: The thread-in two-piece power pin incorporates a
taper to seat and lock the power pin to the rear handle block. Make
sure power pin is tightened in the block with a wrench to ensure pin
is secure and will not come loose.
NOTE: The rear handle and screws do not have to be removed when
installing the two-piece power pins.
1. Thread power pin into the rear handle block.
2. Tighten the power pin into the rear block using a 1-1/4" wrench
on the rear block and a 5/8" wrench on the power pin.
3. Install liner. See section 7-4 Changing the Liner on page 18.
4. Install gun to feeder as per the instructions in immediately
below.
5. For most power pins:
a. Insert power pin to shoulder and secure.
b. Insert control plug to control housing of gun.
c. Insert control plug into feeder.
d. Feed welding wire into power pin by hand and tighten
drive rolls.
e. For Lincoln
® it is necessary to connect gas hose to
barbed fitting on power pin.
14 TG008-1.2
Figure 6-F