Product Guide: Clean Air E™ – Replacing the Neck and Trigger

Maintaining your Bernard® Clean Air E™ Fume Extraction MIG Gun is quick and easy! Watch as we walk through the simple process of replacing the neck and trigger, ensuring your gun stays in top working condition. Designed for durability and performance, the Clean Air E™ makes maintenance hassle-free so you can focus on the job.

Instructions

Changing the Inner Neck Assembly

Remove the Shroud and Consumables: Unthread the knurled smoke shroud from the smoke tube assembly and remove the front end consumables.

Separate the Handle Halves: Remove the socket head cap screws (7/64″ hex) and keep them for later.

Remove the Smoke Tube Assembly: Slide it forward and off the inner neck assembly.

Loosen the Lock Nut: Place the neck in a vise (don’t over-tighten). Use 3/4” wrenches to loosen the lock nut on the neck.

Unthread the Neck: Once the lock nut is loose, unthread the neck from the end fitting by hand.

Replace the Neck: Add the lock nut to the new neck, thread it into the cable end fitting, and tighten by hand. Secure the neck in a vise and torque the lock nut/end fitting connection to 30 ft-lbs (40.7 Nm).

Reassemble the Handle: Position the neck and smoke tube assembly into the handle. Ensure the trigger components and vacuum slide are correctly placed, with trigger wires routed properly.

Secure the Handle Halves: Use the handle screws and torque them to 10 in-lbs (1.1 Nm).

Changing the Switch – Button Model

Separate the Handle Halves: Remove the screws completely.

Remove the Terminals: Use needle nose pliers to remove the terminals from the trigger switch.

Attach the New Trigger: Secure the terminals to the new trigger, position it in the right handle half, and ensure the wires are routed correctly.

Reassemble the Handle: Reinstall the second handle half, tighten all screws, and torque to 10 in-lbs (1.1 Nm).

Changing the Switch – Lever Model

Separate the Handle Halves: Remove the screws completely.

Remove the Switch Assembly: Use needle nose pliers to disconnect the terminals and carefully remove the lever.

Attach the New Switch: Secure the terminals to the new switch assembly, install it into the mounting cavity, and reinstall the lever.

Reassemble the Handle: Ensure all components are correctly positioned, then reinstall the second handle half, starting with the lever screw. Tighten all screws and torque to 10 in-lbs (1.1 Nm).

Changing the Vacuum Slide Switch

Separate the Handle Halves: Remove the screws completely.

Remove the Slide Switch: Carefully take it out of the channel in the handle half.

Install the New Slide Switch: Position it in the channel, ensuring it moves freely.

Reassemble the Handle: Keep the slide switch properly aligned and reinstall the screws, tightening them evenly and torquing to 10 in-lbs (1.1 Nm)

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