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SAFETY AND OPERATING INSTRUCTIONS
SECTION 2: INTRODUCTION
2.01
HOW TO USE THIS MANUAL
To ensure safe operation, read the entire manual, including the chapter 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!
An operation, procedure, or background information which requires additional
emphasis or is helpful in efficient operation of the system.
CAUTION
!
A procedure which, if not properly followed, may cause damage to the equipment.
WARNING
A procedure which, if not properly followed, may cause injury to the operator or
others in the operating area.
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. Call
Tweco Customer Care for a listing of available adapter kits.
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 ESAB. Tweco Spray Master is a
registered trademark of ESAB.
SECTION 3: MIG GUN
SPECIFICATIONS
3.01
MIG GUN CLASSIFICATION
Process
Method of Guidance
Type of Cooling
Type of Shielding Gas
3.02
DUTY CYCLE
Spray Master with VELOCITY2 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 incorpo-
rated within each part number to help determine the wire size of each MIG gun.
Example Part Number:
350 AMP, 15 foot (5 M) cable
S MV3151 16
Spray Master
with VELOCITY2
89200016
MIG/MAG welding
Manually guided
Air
All types
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 Precau-
tions."
WARNING
Electric shock can cause injury or death.
WIRE FEEDER
POWER
SOURCE
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.
4
GUN
WORK PIECE
GROUND
Figure 2
Figure 3
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