NS-40 Manual
Page 2
729-110-036
Revision 1.14
August 2013
GUN SETUP FOR WELDING STEEL STUDS
Figure 1
Installation of Accessories
Note:
For welding studs larger than 5/16”
diameter, Nelson recommends installing the
Tranquil-Arc
®
Plunge Dampener (#512-241-000)
for better flash control. (see page 12 for installation
instructions)
1.
Insert chuck in the chuck adaptor. While
holding the gun by the chuck adapter, lightly
tap the chuck with a hammer until it is seated
and held firmly in the taper of the chuck
adapter (See Figure 1).
Note:
A different Chuck is required for each
stud diameter.
2.
Insert Ferrule Grip into Foot and secure with
set screws provided (See Figure 1).
3.
Insert stud in Chuck and Ferrule in Ferrule
Grip.
4.
Loosen the leg screws holding the foot and
adjust the foot so that stud is centered in the
ferrule.
This is important
because improper
welds will result if there is any binding or
friction between the stud and ferrule.
Adjustment of Plunge
1.
Adjust the leg and foot assembly so that the
stud extends from 1/8" to 3/16" beyond the end
of the ferrule (See Figure 1).
2.
When stud is so positioned, tighten the leg
screws so that the Foot Assembly cannot move.
Note:
It is necessary to adjust plunge when
changing stud lengths.
Caution:
When using large diameter or special
shaped chucks, (i.e. 500-001-085) with a gun
equipped with a Tranquil-Arc
®
Plunge Dampener,
position the chuck so that no part of the chuck
