4
SAFETY AND OPERATING INSTRUCTIONS
89200016
SECTION 2: INTRODUCTION
2.01
HOW TO USE THIS MANUAL
To ensure safe operation, read the entire manual, including the chapters on safety
instructions and warnings. Throughout this manual, the words WARNING, CAUTION, and
NOTE may appear. Pay particular attention to the information provided under these
headings. These special annotations are easily recognized as follows:
NOTE
NOTE conveys installation, operation, or maintenance information
which is important but not hazard-related.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
2.02 RECEIPT OF EQUIPMENT
When you receive the equipment, check it against the invoice to make sure it is complete
and inspect the equipment for possible damage due to shipping. If there is any damage,
notify the carrier immediately to file a claim. Furnish complete information concerning
damage claims or shipping errors to the location in your area, listed on the back cover of
this manual. Include a full description of the parts in error.
2.03 DESCRIPTION
Tweco Spray Master MIG Guns are furnished with rear connections to fit directly into most
Miller
®
, Lincoln
®
, and Euro connection wire feeders. These guns are referred to as Direct
Plug MIG Guns. Tweco Spray Master MIG guns are also furnished with the time-proven
MIG-Kwik connection. The MIG-Kwik connection, when utilized with a Tweco adapter kit,
allows a Tweco Spray Master MIG gun to be installed on almost any wire feed system. For
a listing of available adapter kits, see the Tweco Adapter Kit Listing, Form No. TAKL-97, or
call Tweco Customer Care.
Miller is registered trademark of Illinois Tool Works, Inc.. Lincoln is a registered trademark of Lincoln Electric Co. The
aforementioned registered trademarks are no way affiliated with Tweco Products, Inc. or Victor Technologies, Inc. Tweco
Spray Master is a registered trademark of Victor Technologies, Inc.
SECTION 3: MIG GUN
SPECIFICATIONS
3.01 MIG GUN CLASSIFICATION
Process
MIG/MAG welding
Method of Guidance
Manually guided
Type of Cooling
Air
Type of Shielding Gas
All types
3.02 DUTY CYCLE
Spray Master with Velocity MIG Guns (250, 350, and 450 Amps) with mixed gas are rated
at 80% duty cycle per IEC 60974-7.
3.03 MIG GUN PART NUMBER IDENTIFICATION
NOTE
Spray Master MIG guns, as a general rule, have a specific
nomenclature incorporated within each part number to help
determine the wire size of each MIG gun.
Example Part Number:
SMV315116
Spray Master
with Velocity
350 AMP, 15 foot (5 M) cable
1-/16" Wire Capacity
(1,6mm)
SECTION 4: MIG GUN INSTALLATION
NOTE
Be certain that the end user (welder, operator, or helper) reads
and understands these instructions. Be certain that the welder
also reads Section 2 “Safety Precautions.”
WARNING
Electric shock can cause injury or death.
POWER
SOURCE
WIRE FEEDER
GROUND
WORK PIECE
GUN
Figure 1: Standard MIG Gun Installation
4.01 DIRECT PLUG MIG GUN INSTALLATION
Direct plug MIG guns install by directly inserting the rear connector plug into the feeder
wire guide outlet (see figure 2) and tightening the plug retaining screw. All models of MIG
guns, except the Euro-Kwik guns, require a control wire assembly to attach the MIG gun
trigger leads to the feeder. The control wire assemblies plug into the rear connector case
of the MIG gun, and into the control wire receptacle on the feeder. Euro-Kwik connections
are installed by inserting the gun connection into the feeder receptacle, aligning the
conduit plug first, then the gas plug. Push until all fittings are seated, then tighten the nut
hand tight as shown in figure 3.
Figure 2
Figure 3
