Documentation Category: Semi-Auto MIG Guns2

Step 1 A.  Remove nozzle B.  Loosen gas diffuser C.  Remove gas diffuser. D.  Remove power pin cap from the rear of the gun  Step 2 A.  Remove old liner B.  Replace new liner through the neck C.  With the gun laying straight, push liner through until the brass liner lock bottoms on the neck […]

Remove consumables (Nozzle, Retaining Head, Contact Tip). Remove the liner from the gun. Mount neck in the vise. Disassemble handle and remove switch from leads. Move the handle back.Bend cable behind connector cone. Cut cable at bend. Slide two large “Oetiker” clamps 1.5 ft. down the cable (required for crimping later). From your cut (end […]

Remove liner and strain relief from the gun assembly. Disconnect the Euro block leads from the gun by cutting as close as possible on both sides of the butt connectors in order to preserve wire for later retermination. Slide adaptor nut toward cable, thus exposing the Euro block. Remove Euro block from end fitting using wrenches […]

Remove liner from gun assembly. Viewing quick disconnect from cable end, align wave spring and large snap ring with opening access slot. Compress large snap ring with internal snap ring pliers and remove locking sleeve. Remove small external snap ring with external snap ring pliers from power pin. Remove the control leads from the rigid strain […]

Remove nozzle, contact tip, and gas diffuser / retaining head and lay cable straight. Using a 10 mm wrench, turn liner lock counterclockwise until it is free from the power pin. Remove liner from gun assembly. Remove the screw and assembly from rear strain relief and slide rear strain relief back over power pin. Position control […]

To remove neck, remove the nut insulator. Using a wrench, rotate lock nut counterclockwise. Rotation will free neck from end fitting. To install the neck, perform the above instructions in reverse order and tighten lock nut to 16 ft.-lbs. (21.7 Nm). Be sure nut insulator is in place. Liner may need to be changed if switching to a […]

Loosen and remove locking collar. Place neck in vise, twist handle lock nut counterclockwise and pull away from handle. Remove screw from handle. Separate handle halves exposing jam nut and front of unicable. Loosen jam nut using two 19 mm wrenches and unthread neck. Remove from vise and unthread neck by hand. Thread jam nut onto new neck. Thread neck […]

Place neck in vise. Remove both switch mounting housing screws with an 8 mm nut driver. Slide handle back exposing the cable connection. Loosen the cable/neck connection using a 7/8” wrench. Remove from vise and unthread neck by hand. Thread the neck into the cable connection (hand tighten). Place neck in vise and tighten with a wrench to within 1/8” […]

To remove neck, grasp lock nut and rotate counterclockwise. Rotation will free neck from end fitting.To install the neck, perform the above instructions in reverse order and torque to 38 in.-lbs.Liner may need to be changed if switching to a neck of a different bend, angle or length.

Bernard® Conventional Liners Remove nozzle, contact tip, and gas diffuser / retaining head and lay cable straight. Using a 10 mm wrench, turn liner lock counterclockwise until it is free from the power pin. Remove liner from gun assembly. With cable laying straight, insert new liner into power pin and feed through gun using short strokes […]

Step 1 Place neck in vise.Remove both switch housing mount screws.Slide handle back, exposing the cable connection.Loosen the cable / neck connection using a 7/8″ wrench.Remove from vise and unthread neck by hand.NOTE: The body is now an integral part of the neck and the handle mounting holes are metric (M5). Use the screws supplied […]