ESAB ST-16 Manual

CAUTION
! !
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles
of operation and safe practices for arc welding equipment, we urge you to read our booklet, "Pre-
cautions and Safe Practices for Arc Welding, Cutting, and Gouging" Form 52-529. Do NOT permit
untrained persons to install, operate, or maintain this equipment. Do NOT attempt to install or
operate this equipment until you have read and fully understand these instructions. If you do not
fully understand these instructions, contact your supplier for further information. Be sure to read
the Safety Precautions on page 2 before installing or operating this equipment.
I. INTRODUCTION
The ST-16 Torch, P/N 997498EU, is a rugged all purpose,
water cooled, manual MIG welding torch designed
to operate at welding currents up to 600 amperes
continuous duty using argon as the shielding gas. The
ST-16 is intended for use with ESAB wire feeders which
have provision for water cooling and will handle all
types of welding wires in sizes from .030-in. through
3/32-in. diameter.
II. DESCRIPTION
To provide maximum resistance to the abuses of day
to day service, the torch is of heavy-duty construction
with metal parts well insulated from current carrying
members. It's 55-degree, curved stainless steel front
body permits effective operation in tight, hard-to-
reach corners and other contained areas. The torch
employs metal nozzles and either slip-in contact tubes
or threaded contact tips (long or short). Each contact
tube is threadless and is retained by a collet nut sup-
plied with the torch. All service lines are internally
connected to the torch body and exit from the rear of
the torch handle for easy torch maneuverability. For
Manual Number: 0-5630
Revision Date: 02-23-2022
Revision Number: AA
Language: ENGLISH
ST-16
MIG WELDING TORCH
weld start-stop control,
the torch is provided with
a positive action universal
lever switch which can be
positioned at any point on the torch handle preferred
by the operator.
For hard and flux cored wires, Tweco 44 series standard
liners are available.
III. ACCESSORY EQUIPMENT
A. REQUIRED
The ST-16 requires a nozzle (see Table 1), and several
wire feed accessories of the proper size for the wire be-
ing used. (Refer to Table 2 if using the self-lined conduit
system or Table 3 if using conduit with continuous or
replaceable liner system). One other accessory whose
selection depends upon wire size is the feed roll on the
wire feeder itself. Selection of this accessory is covered
in the appropriate wire feeder instruction booklet.
Table 1- Nozzles
Description
No. 8 Nozzle*
No. 10 Nozzle*
No. 10L Nozzle
No. 12 Nozzle
No. 12M Med. Length Nozzle
No. 12 Spot Welding Nozzle
*Requires Spatter Liner, P/N 633603.
Part No.
P/N 598739
P/N 598721
P/N 598891
P/N 633985
P/N 997310
P/N 993757
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