Stud Gun Setup Guide for Threaded and non thread Arc Studs

Follow these step-by-step instructions to properly set up your stud gun to weld threaded or non thread drawn arc studs.

This setup works for nelson ns40 stud welder guns.
1

STEP 1 - Insert the Arc Chuck

Place the Arc Chuck into the NS40 Chuck Adaptor.  Hold the Chuck Adaptor and Arc Chuck in one hand and with the other hand lightly hammer or mallet the Arc Chuck to ensure it is seated properly.

2

STEP 2 - Determine the Foot

Determine the size and type of Nelson Style Arc Foot you need.  

Stud Diameter 1/8" - 1/2": Small

Stud Diameter 5/8" - 3/4": Medium

Stud Diameter 7/8" - 1": Large

Use a Closed Foot for stud lengths of 2" and shorter. 

For longer studs, use a Split foot to ease the loading of the stud into the gun.

nelson stud welder feet
3

STEP 3 - Make the Foot Assembly

Screw the 5/16" Arc Legs into the Nelson Style Arc Foot.  The recess of the foot should face out.  Leave the screws loose until you make your final plunge adjustment. 

4

STEP 4 - Determine Ferrule Grip

Determine the ferrule grip you need. For studs 2" and shorter, use a closed ferrule grip.  For studs longer than 2" use a split ferrule grip.

Ferrule grips closed and split
5

STEP 5 - Install Ferrule Grip in Foot

Insert the Ferrule Grip in the Nelson Style Arc Foot. Tighten the set screws.

6

STEP 6 - Install foot assembly

Insert a stud in the arc chuck. Slide the foot assembly into the gun so that stud sticks out past the foot piece.

7

STEP 7 - Center the stud in the grip

Adjust the foot assembly so that the stud is centered in the middle of the Ferrule Grip. Tighten the leg screws.

8

STEP 8 - Adjust the Plunge

Put a ferrule on the end of the stud and make the plunge adjustment.  The plunge is the amount of the stud that sticks out past the ferrule grip not including the flux ball.

Loosen the leg screws in the gun. Adjust the plunge. Tighten the leg screws in the gun.

Stud Diameter Plunge
3/8" - 1/2": 3/16" - 1/4"
5/8" - 3/4": 1/4" - 5/16"
7/8" - 1": 5/16" - 3/8"

Setup Complete

Your stud welding gun is now properly configured and ready for use. For additional support or questions, contact our technical team.