Tweco 210 MIG Thermal Arc Fabricator - Manual (Page 46)

FABRICATOR 210
OPERATION 4-8 Manual No. 0-4855
4.05 Installing A New Wire Conduit
Removal
1. Be sure the MIG Gun cable is arranged in a straight
line, free from twists, when installing or removing a
wire conduit.
2. Unscrew and remove the MIG Gun Nozzle by hand and the
Contact Tip using a pair of slip-joint pliers. Note that the
Insulator is inside the Nozzle and can not be removed.
3. Loosen the allen screw in the Gas Diffuser and un-
screw it from the Conductor Tube using a 1/2-in.
(13mm) open end wrench across the flats.
4. Loosen the allen screw in the Connector Plug using a
5/64-in. allen wrench and pull the old Wire Conduit
out of the cable assembly from the Connector Plug
end.
Installation
1. Inspect the two O-ring gas seals on the Connector
Plug for cuts or damage.
2 Start from the Connector Plug end of the assembly
and begin pushing the Wire Conduit through the
Connector Plug, cable assembly and into the gun. If
the Wire Conduit should lodge along the way, gently
whip or work the cable assembly to aid forward
movement.
3. When the Wire Conduit Liner stop meets the end of
the Connector Plug and the new raw end extends
through the end of the Conductor Tube on the welding
gun, the allen screw in the connector plug must be
securely tightened onto the Wire Conduit to prevent
its backward movement.
NOTE
When the Wire Conduit is fully inserted into
the cable assembly and the conduit stop is
firmly against the Connector Plug, the “raw
end” of the Wire Conduit will protrude out of
the open end of the gun Conductor Tube. Trim
the Wire Conduit as shown in Figure 4-14. The
trimmed end which seats in the Gas Diffuser
must be filed and reamed smooth on the inside
and outside radii so wire feed will not be
obstructed.
3. Replace the Gas Diffuser and tighten its allen screw
against the Wire Conduit.
4. Replace the Contact Tip and Nozzle.
CAUTION
Do not over-tighten the allen screw as this will
distort the Wire Conduit and lead to wire
feedability problems.
CONDUCTOR TUBE
CONDUIT LINER
CONDUIT LINER
NOZZLE
DIFFUSER
CONTACT TIP
1 1/16"
(27mm)
Art # A-07330
5/64-IN. ALLEN SCREW
O-RINGS
CONNECTOR PLUG
ALLEN SCREW
Figure 4-14: Conduit Installation and Trim Length