Liquid Cooled
Millermatic Compatible™
Owner’s Manual
Product: Python
Manual: 091-0597
Serial: 07030001
Voltage Rating: 24 VDC
Revision: March 2007
Gun Models: 248-8xx
400 Ampere Push-Pull Welding Gun
Table of Contents
Safety Considerations ........................................................................i-iii
Installation ............................................................................... Section A
Technical Specications .....................................................................................1
Support Equipment Required .............................................................................1
Gun Lead Connections ......................................................................................1
Coolant Recommendations ................................................................................1
Operation .................................................................................Section B
General ..............................................................................................................2
Controls and Settings .........................................................................................2
Trigger Adjustment .............................................................................................2
Drive Roll and Idler Rolls....................................................................................2
Accessories .............................................................................Section C
Insulated Drive Roll Kits .....................................................................................3
Replacement Kits ...............................................................................................4
Snake Skins ....................................................................................................... 4
Contact Tips .......................................................................................................4
Barrels ................................................................................................................4
Maintenance ............................................................................Section D
Periodic Maintenance.........................................................................................5
Recommended Spare Parts List ........................................................................ 6
Troubleshooting .......................................................................Section E
Troubleshooting Guide .......................................................................................6
Testing The Gun .................................................................................................6
Appendices ..............................................................................Section F
Diagrams / Parts List ..........................................................................................9
Mechanical .......................................................................................................10
Electrical...........................................................................................................17
Warranty
Declaration of Conformity for
European Community (CE) Products
This information is provided for units with CE certification (see rating label on unit).
Note
Manufacturer’s Name: Miller Electric Mfg. Co.
Manufacturer’s Address: 1635 W. Spencer Street
Appleton, WI 54914 USA
Declares that the product: XR-Control
conforms to the following Directives and Standards:
Directives
Low Voltage Directive: 73/23/EEC
Electromagnetic Compatibility (EMC) Directive: 89/336/EEC
Machinery Directives: 89/392/EEC, 91/368/EEC, 93/C 133/04, 93/68/EEC
Standards
Arc Welding Equipment Part I: Welding Power Sources: IEC 60974-1
(September 1998 – Second Edition)
Arc Welding Equipment: Wirefeed Systems: IEC 974-5
(September 1997 – Draft Revision)
Degrees of Protection Provided By Enclosures (IP Code): IEC 529:1989
(November 1989 - First Edition)
Insulation Coordination For Equipment With Low-Voltage Systems:
Part I: Principles, Requirements and Tests: IEC 664-1: 1992
(October 1992 – First Edition)
Electromagnetic Compatibility, (EMC): EN 50199
(August 1995)
Torches And Guns For Arc Welding, EN 50078
MK Products, Inc.
16882 Armstrong Ave.
Irvine, CA 92606
Python
®
SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING
som _nd_7/02
1-1. Symbol Usage
Means Warning! Watch Out! There are possible hazards
with this procedure! The possible hazards are shown in
the adjoining symbols.
Marks a special safety message.
Means “Note”; not safety related.
This group of symbols means Warning! Watch Out! possible
ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.
Consult symbols and related instructions below for necessary actions
to avoid the hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual to
call attention to and identify possible hazards. When you see
the symbol, watch out, and follow the related instructions to
avoid the hazard. The safety information given below is only
a summary of the more complete safety information found in
the Safety Standards listed in Section 1-4. Read and follow all
Safety Standards.
Only qualified persons should install, operate, maintain, and
repair this unit.
During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or automatic wire welding, the
wire, wire reel, drive roll housing, and all metal parts touching the
welding wire are electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
Do not touch live electrical parts.
Wear dry, hole-free insulating gloves and body protection.
Insulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
Do not use AC output in damp areas, if movement is confined, or if
there is a danger of falling.
Use AC output ONLY if required for the welding process.
If AC output is required, use remote output control if present on
unit.
Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
Properly install and ground this equipment according to its
Owner’s Manual and national, state, and local codes.
Always verify the supply ground – check and be sure that input
power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.
When making input connections, attach proper grounding conduc-
tor first – double-check connections.
Frequently inspect input power cord for damage or bare wiring –
replace cord immediately if damaged – bare wiring can kill.
Turn off all equipment when not in use.
Do not use worn, damaged, undersized, or poorly spliced cables.
Do not drape cables over your body.
If earth grounding of the workpiece is required, ground it directly
with a separate cable.
Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
Wear a safety harness if working above floor level.
Keep all panels and covers securely in place.
Clamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
Do not connect more than one electrode or work cable to any
single weld output terminal.
SIGNIFICANT DC VOLTAGE exists after removal of
input power on inverters.
Turn Off inverter, disconnect input power, and discharge input
capacitors according to instructions in Maintenance Section
before touching any parts.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
FUMES AND GASES can be hazardous.
Keep your head out of the fumes. Do not breathe the fumes.
If inside, ventilate the area and/or use exhaust at the arc to remove
welding fumes and gases.
If ventilation is poor, use an approved air-supplied respirator.
Read the Material Safety Data Sheets (MSDSs) and the
manufacturer’s instructions for metals, consumables, coatings,
cleaners, and degreasers.
Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and
lower the oxygen level causing injury or death. Be sure the breathing air is safe.
Do not weld in locations near degreasing, cleaning, or spraying op-
erations. The heat and rays of the arc can react with vapors to form
highly toxic and irritating gases.
Do not weld on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and if necessary, while wearing an
air-supplied respirator. The coatings and any metals containing
these elements can give off toxic fumes if welded.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page i
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.
ARC RAYS can burn eyes and skin.
� Wear a welding helmet fitted with a proper shade of filter to protect
your face and eyes when welding or watching (see ANSI Z49.1
and Z87.1 listed in Safety Standards).
� Wear approved safety glasses with side shields under your
helmet.
� Use protective screens or barriers to protect others from flash and
glare; warn others not to watch the arc.
� Wear protective clothing made from durable, flame-resistant mate-
rial (leather and wool) and foot protection.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up. Sparks
can fly off from the welding arc. The flying sparks, hot
workpiece, and hot equipment can cause fires and
burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.
WELDING can cause fire or explosion.
� Protect yourself and others from flying sparks and hot metal.
� Do not weld where flying sparks can strike flammable material.
� Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
� Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
� Watch for fire, and keep a fire extinguisher nearby.
� Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
� Do not weld on closed containers such as tanks, drums, or pipes,
unless they are properly prepared according to AWS F4.1 (see
Safety Standards).
� Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock and fire hazards.
� Do not use welder to thaw frozen pipes.
� Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
� Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.
� Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
FLYING METAL can injure eyes.
� Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.
� Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
� Shut off shielding gas supply when not in use.
� Always ventilate confined spaces or use
approved air-supplied respirator.
HOT PARTS can cause severe burns.
� Do not touch hot parts bare handed.
� Allow cooling period before working on gun or
torch.
MAGNETIC FIELDS can affect pacemakers.
� Pacemaker wearers keep away.
� Wearers should consult their doctor before
going near arc welding, gouging, or spot
welding operations.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
� Wear approved ear protection if noise level is
high.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
CYLINDERS can explode if damaged.
� Protect compressed gas cylinders from excessive heat, mechani-
cal shocks, slag, open flames, sparks, and arcs.
� Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
� Keep cylinders away from any welding or other electrical circuits.
� Never drape a welding torch over a gas cylinder.
� Never allow a welding electrode to touch any cylinder.
� Never weld on a pressurized cylinder – explosion will result.
� Use only correct shielding gas cylinders, regulators, hoses, and fit-
tings designed for the specific application; maintain them and
associated parts in good condition.
� Turn face away from valve outlet when opening cylinder valve.
� Keep protective cap in place over valve except when cylinder is in
use or connected for use.
� Read and follow instructions on compressed gas cylinders,
associated equipment, and CGA publication P-1 listed in Safety
Standards.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page ii
1-3. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
� Do not install or place unit on, over, or near
combustible surfaces.
� Do not install unit near flammables.
� Do not overload building wiring – be sure power supply system is
properly sized, rated, and protected to handle this unit.
FALLING UNIT can cause injury.
� Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
� Use equipment of adequate capacity to lift and
support unit.
� If using lift forks to move unit, be sure forks are
long enough to extend beyond opposite side of
unit.
OVERUSE can cause OVERHEATING
� Allow cooling period; follow rated duty cycle.
� Reduce current or reduce duty cycle before
starting to weld again.
� Do not block or filter airflow to unit.
STATIC (ESD) can damage PC boards.
� Put on grounded wrist strap BEFORE handling
boards or parts.
� Use proper static-proof bags and boxes to
store, move, or ship PC boards.
MOVING PARTS can cause injury.
� Keep away from moving parts.
� Keep away from pinch points such as drive
rolls.
WELDING WIRE can cause injury.
� Do not press gun trigger until instructed to do
so.
� Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
MOVING PARTS can cause injury.
� Keep away from moving parts such as fans.
� Keep all doors, panels, covers, and guards
closed and securely in place.
H.F. RADIATION can cause interference.
� High-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
� Have only qualified persons familiar with
electronic equipment perform this installation.
� The user is responsible for having a qualified electrician prompt-
ly correct any interference problem resulting from the installation.
� If notified by the FCC about interference, stop using the
equipment at once.
� Have the installation regularly checked and maintained.
� Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
ARC WELDING can cause interference.
� Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
� Be sure all equipment in the welding area is
electromagnetically compatible.
� To reduce possible interference, keep weld cables as short as
possible, close together, and down low, such as on the floor.
� Locate welding operation 100 meters from any sensitive elec-
tronic equipment.
� Be sure this welding machine is installed and grounded
according to this manual.
� If interference still occurs, the user must take extra measures
such as moving the welding machine, using shielded cables,
using line filters, or shielding the work area.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page iii
1-4. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
from American Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126
(phone: 305-443-9353, website: www.aws.org).
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping, American Welding Society Standard
AWS F4.1, from American Welding Society, 550 N.W. LeJeune Rd, Miami, FL 33126 (phone: 305-443-9353, website: www.aws.org).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
02269–9101 (phone: 617–770–3000, website: www.nfpa.org and www.
sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 1735 Jefferson Davis Highway,
Suite 1004, Arlington, VA 22202–4102 (phone: 703–412–0900, website: www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 178 Rexdale
Boulevard, Rexdale, Ontario, Canada M9W 1R3 (phone:
800–463–6727 or in Toronto 416–747–4044, website: www.csa–international.org).
Practice For Occupational And Educational Eye And Face Protection,
ANSI Standard Z87.1, from American National Standards Institute, 11
West 42nd Street, New York, NY 10036–8002 (phone: 212–642–4900,
website: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,
P.O. Box 9101, 1 Battery March Park, Quincy, MA 02269–9101 (phone:
617–770–3000, website: www.nfpa.org and www. sparky.org).
OSHA, Occupational Safety and Health Standards for General Industry, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,
and Part 1926, Subpart J, from U.S. Government Printing Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250 (there
are 10 Regional Offices––phone for Region 5, Chicago, is
312–353–2220, website: www.osha.gov).
1-5. EMF Information
Considerations About Welding And The Effects Of Low Frequency
Electric And Magnetic Fields
Welding current, as it flows through welding cables, will cause electromagnetic fields. There has been and still is some concern about such
fields. However, after examining more than 500 studies spanning 17
years of research, a special blue ribbon committee of the National
Research Council concluded that: “The body of evidence, in the
committee’s judgment, has not demonstrated that exposure to powerfrequency electric and magnetic fields is a human-health hazard.”
However, studies are still going forth and evidence continues to be
examined. Until the final conclusions of the research are reached, you
may wish to minimize your exposure to electromagnetic fields when
welding or cutting.
To reduce magnetic fields in the workplace, use the following
procedures:
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the operator.
3. Do not coil or drape cables around your body.
4. Keep welding power source and cables as far away from operator as practical.
5. Connect work clamp to workpiece as close to the weld as possible.
About Pacemakers:
Pacemaker wearers consult your doctor first. If cleared by your doctor,
then following the above procedures is recommended.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page iv
SECTION 2 – DEFINITIONS
1 1.1 1.2 1.3
3 3.1 3.2 3.3
4 4.1
+
2
2.1
2.2
+
+
5 6
+
2.3
S-178 936
A. Warning! Watch Out! There
are possible hazards as
shown by the symbols.
B. Drive rolls can injure fingers.
C. Welding wire and drive parts
are at welding voltage during
operation – keep hands and
metal objects clear.
1 Electric shock can kill.
1.1 Wear dry insulating gloves.
Do not touch electrode with
bare hand. Do not wear wet or
damaged gloves.
1.2 Protect yourself from electric
shock by insulating yourself
from work and ground.
1.3 Disconnect input plug or
power before working on
machine.
2 Breathing welding fumes can
be hazardous to your health.
2.1 Keep your head out of the
fumes.
2.2 Use forced ventilation or local
exhaust to remove the fumes.
2.3 Use ventilating fan to remove
fumes.
3 Welding sparks can cause
explosion or fire.
3.1 Keep flammables away from
welding. Don’t weld near
flammables.
3.2 Welding sparks can cause
fires. Have a fire extinguisher
nearby and have a watch
person ready to use it.
3.3 Do not weld on drums or any
closed containers.
4 Arc rays can burn eyes and
injure skin.
4.1 Wear hat and safety glasses.
Use ear protection and button
shirt collar. Use welding
helmet with correct shade of
filter. Wear complete body
protection.
5 Become trained and read the
instructions before working on
the machine or welding.
6 Do not remove or paint over
(cover) the label.
2-1. Warning Label Definitions
A B C
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page v
2-3. Symbols And Definitions
Some symbols are found only on CE products.
Note
A
Amperes
V
Volts Alternating Current
X
Duty Cycle
IP
Degree Of
Protection
Hz
Hertz Circuit Breaker Wire Feed
Jog Output Trigger Gun
Press To Set Increase Trigger Hold On Trigger Hold Off
Purge Spot Weld Time Percent Run-In
Burnback Time
U
1
Primary Voltage
U
2
Load Voltage Read Instructions
I
1
Primary Current
I
2
Rated Current Line Connection
Water (Coolant) In-
put
Water (Coolant)
Output
Fuse
Continuous
Spot Welding
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page vi
Thank You
For selecting a quality product. We want you to take
pride in operating this product...as much pride as we
have in bringing the product to you!
When this equipment is shipped, title passes to the purchaser upon receipt by the
carrier. Consequently, claims for material damaged in shipment must be made by the
purchaser against the transportation company at the time the shipment is received.
Please record your equipment identification information below for future reference. This
information can be found on your machine nameplate.
Model Name & Number _____________________
Code & Serial Number _____________________
Date of Purchase _____________________
Whenever you request replacements parts for, or information on this equipment always
supply the information you have recorded above.
Please Examine Carton and Equipment For Damage Immediately
Read this Owner’s Manual completely before attempting to use this equipment. Save this manual
and keep it handy for quick reference. Pay particular attention to the safety instructions we
have provided for your protection.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual Page vii
Section A Installation
Technical Specications
Wire Capacity
Aluminum or Cored Wire .............................. .030" - 1/16" (0.8 mm - 1.6 mm)
Solid and Hard Wire ..................................... .030" - .045" (0.8 mm - 1.2 mm)
Wire Speed (At rated feeder input voltage) .................... 800 ipm (20.3 mpm)
Duty Cycle - 60% (All ratings are using Argon gas) ........................400 Amps
Shipping Weight (approximate) ......................................19.29 lbs. (8.29 Kg)
Support Equipment Required
• C.V. or C.C. power source of sufcient capacity for your needs.
• Regulated gas supply and hoses.
• Properly sized power leads from power source to wire feeder and
ground.
Gun Lead Connections
Power Cable
Millermatic Compatible™ Python® liquid cooled guns utilize a specially
designed cable with a #6 AWG cable inside a 1/2" (13 mm) diameter hose.
Liquid coolant is used with this cable and the #10 liquid cooled gas cup,
the system is rated at 400 amps @ 60% duty cycle. The welding power
connection is incorporated through the power pin type connector.
The power cable ends are threaded ttings which screw into the gun body
and the power pin connector. These connections utilize a conductive sealant
and are tightened with torque requirements of 100 + 5 IN-LB.
Conduit
The liquid cooled Millermatic Compatible™ Python® comes standard with
a poly-lined conduit, for feeding aluminum wire. The longer tting with a
shallow groove is used on the gun end. A set screw located on top of the
gun handle secures the conduit in place. The cabinet end of the conduit is
secured into the Power Pin connector with a set screw.
Gas Hose
The gas hose is pushed over barbed ttings on both gun body and the Power
Pin connector and is secured with a plastic tie wrap.
Coolant Connections
The blue coolant (supply) hose is pushed over a barbed tting on the gun
body and secured with a plastic tie wrap. The red coolant (return) hose
connects through the power cable and the power pin connector.
Both hose ttings are standard coolant style, left-hand threads.
Control Cable
A multi-conductor control cable is used on the liquid cooled Millermatic
Compatible™ Python®. The gun end of the cable is secured with a cable
clamp and the wires are connected to the potentiometer, the micro switch,
the motor and the gun body mechanically. Slack is left in the electric cable
as it exits the back of the gun to prevent cable and/or wire breakage. The
cabinet end of the control cable uses a 10-Pin, "X" clocked connector.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 1
Coolant Recommendations
Use Cobra Coolant (Aluminum Protection), P/N 931-0060. Cobra Coolant
does not contain reactive sulphur or chlorine and does not react with copper,
brass or aluminum.
The coolant ow rate should be a minimum of 15 GPH (1 qt/min) between
35 and 45psi. Contact the re-circulator manufacturer for specications on
pressure.
Section B Operation
General
The Millermatic Compatible™ Python ® maintains a constant, steady, uniform
wire feed speed, regardless of curved or looped wire conduit. The constant
push exerted by the slave motor in the cabinet, combined with the pull of
the gun motor, causes the wire to literally oat friction-free through the wire
conduit. The 24VDC gun motor is controlled by a three and three-quarter (3
3/4) turn potentiometer in the gun handle.
Controls and Settings
Potentiometer
The laterally-positioned potentiometer is located in the lower end of the
handle, providing up to 800 ipm (20.3 mpm) with 3 3/4 turns.
Micro Switch
The micro switch assembly consists of a normally open micro switch and
solder-attached leads.
Trigger Sensitivity
The amount of trigger lever travel can be
shortened for a quicker or more responsive
action.
A more sensitive trigger lever is produced by
reducing the gap between the trigger lever and
the micro switch lever. By turning-in the trigger
sensitivity adjustment screw, it closed the gap
between the trigger lever and the micro switch
lever.
This will enable the operator to increase the
sensitivity of the trigger lever.
Sensitivity Adjustment
With the wire feeder turned on (with or without
welding wire loaded), turn the screw in until the
micro-switch is activated. Once activated, the
gun and wire feeder motors will begin feeding
wire. Retract the screw accordingly until the
system is deactivated and adjusted to the
operators' satisfaction.
Drive Roll and Idler Rolls
The Millermatic Compatible™ Python ® comes standard with a knurled drive
roll and a grooved idler roll, which will handle .030" to 1/16" aluminum and
.030" to .045" solid and hard wire.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 2
Optional insulated V-groove drive rolls are also available for aluminum wire if
desired (see optional kits).
Drive roll tension is accomplished with a unique spring-loaded pressure
screw. The Millermatic Compatible™ Python ® comes from the factory with
the pressure adjustment screw preset.
NO ADJUSTMENT REQUIRED FOR ANY WIRE SIZE OR ALLOY
Drive Roll Installation/Removal
Note: Neither of the handles needs to be removed to access the drive or
idler rolls.
1. Pull the cam lever away from the
Cam Lever
idler roll. This will relieve the pressure
against the drive roll (as shown in Figure
1).
2. Align the drive roll removal tool over the
ats of the drive roll (as shown in Figure
2). Hold the gun with one hand or on a
table top, with the other hand give the
Figure 1
removal tool a quick snap-turn in the
CLOCKWISE DIRECTION.
3. Once the drive roll is loose, continue to
spin drive roll in the clockwise direction
to remove the drive roll from the gun.
4. Install a new drive roll on the left-hand
threaded shaft. The drive roll will selftighten when it is feeding wire.
Figure 2
Idler Roll Installation and Removal
(Reference Figure 3)
1. Using a slot type screwdriver, loosen idler screw, taking care not to lose
lock washer under idler roll.
2. Insert new idler roll and lock washer onto screw, insuring that idler groove
is toward top and lock washer is beneath.
3. Tighten screw until tight.
NOTE: Lock washer must be under idler roll or it will not turn freely.
Figure 3
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 3
Section C Options and Accessories
Insulated Drive Roll Kits
Used to prevent preheating of the wire which may soften it and clog the liner.
This picking up of current at the drive rolls rather than at the contact tip is
usually not a problem unless using too large of a contact tip or excessively
oxidized aluminum wire.
Insulated Groove Drive Roll Kit ......................................................005-0640
For .030" (0.8 mm) dia. aluminum wire. Includes insulated drive roll and idler
roll assy.
Insulated Groove Drive Roll Kit ......................................................005-0716
For .035" (0.9 mm) dia. aluminum wire. Includes insulated drive roll
and idler roll assy.
Insulated Groove Drive Roll Kit ......................................................005-0642
For .040" (1.0 mm) dia. aluminum wire. Includes insulated drive roll
and idler roll assy.
Insulated Groove Drive Roll Kit ......................................................005-0718
For 3/64" (1.2 mm) dia. aluminum wire. Includes insulated drive roll
and idler roll assy.
Insulated Groove Drive Roll Kit ...................................................... 005-0644
For .062" (1.6 mm) dia. aluminum wire. Includes insulated drive roll
and idler roll assy.
Replacement Kits
Handle Kit Gun ................................................................................. 005-0699
Left and right handles, screws and drive roll door, as a replacement for all
Millermatic Compatible™ Python® guns.
Trigger Kit .........................................................................................005-0694
Trigger adjustment kit includes a spring and sensitivity adjustment screw
replacement for all Millermatic Compatible™ Python® guns.
Micro Switch Kit ............................................................................... 005-0701
Replacement micro switch assembly for all Millermatic Compatible™ Python®
guns.
Potentiometer Kit ............................................................................. 005-0695
Replacement potentiometer assembly for all Millermatic Compatible™
Python® guns.
Barrel Insulator Kit ..........................................................................005-0696
Replacement barrel insulator and taper lock nut.
Conduits
Flat spiral steel conduit for steel & cored wire.
15 ft./4.5m ..................................................................................... 615-0621-15
25 ft./7.6m ..................................................................................... 615-0621-25
35 ft/10.7m .................................................................................... 615-0621-35
50 ft./15.2m ...................................................................................615-0621-50
Snake Skins
A Snake Skin protective cover is standard on the Millermatic Compatible™
Python®. See below for replacement part numbers.
15 ft./4.5m .......................................................................................... 931-0110
25 ft./7.6m .......................................................................................... 931-0122
35 ft/10.7m ......................................................................................... 931-0132
50 ft./15.2m ........................................................................................ 931-0123
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 4
Contact Tips
Heavy Duty Contact Tip - 3/8" Diameter*
Wire Size Tip ID Arc Tip Length Part No.
.030” (0.8mm) .040” (1.0mm) Spray 1.57” (39.9mm) 621-0390-25
Short 1.82” (46.2mm) 621-0396-25
.035” (0.9mm) .045” (1.1mm) Spray 1.57” (39.9mm) 621-0391-25
621-0391-250
621-0391-500
.035" (0.9mm) .045" (1.1mm) Short 1.82” (46.2mm) 621-0397-25
.045" (1.1mm) .054" (1.37mm) Short 1.82” (46.2mm) 621-0398-25
3/64” (1.2mm) .054” (1.37mm) Spray 1.57” (39.9mm)
3/64” (1.2mm) .060” (1.5mm) Spray 1.57” (39.9mm) 621-0393-25**
1/16” (1.6mm) .074” (1.9mm) Spray 1.57” (39.9mm) 621-0394-25
.085” (2.16mm) Spray 621-0395-25
†
*
Use of tip removal tool is recommended
**This size tip furnished with gun
Also sold in quantities of 250
† †
Also sold in quantities of 500
621-0392-25
621-0392-250
621-0392-500
621-0393-250
621-0393-500
Gas Cups
†
††
†
††
†
††
Air Cooled Cup
Liquid Cooled Cup Adapter
Liquid Cooled Cup
Air Cooled Cups for Python® Liquid Cooled Gun
Cup Size Cup I.D. Part No.
No. 6 3/8” (9.5mm) 621-0170
No. 8 1/2” (12.7mm) 621-0159
No. 10 5/8” (15.8mm) 621-0160
To use air cooled gas cups, you must use a cup retaining nut (449-0193) and a liquid cooled cup adapter (621-0101).
Liquid Cooled Cups for Python® Liquid Cooled Gun
Cup Size Cup I.D. Part No.
No. 10* 5/8” (15.9mm) 621-0065
*Standard - furnished with gun
Barrels
The liquid cooled Millermatic Compatible™ Python® comes standard with a
60˚ curved barrel. The barrel assembly locks to the liquid cooled Millermatic
Compatible™ Python® body using the patented EZ Lock™ system.
Gun Barrel Liners
Part Number Description
931-0137 Teon liner package, 5 pieces
615-0338 Steel wire only, .030 - .1/16" (0.8 - 0.9mm)
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 5
Optional Barrels - Liquid Cooled
6" Straight .......................................................................................... 003-2315
6" Curved, 45° ...................................................................................003-2316
12" Straight ....................................................................................... 003-2318
12" Curved, 45° ................................................................................003-2319
18" Straight ....................................................................................... 003-2320
18" Curved, 45° .................................................................................003-2321
Barrel Removal and Installation
CAUTION: Power-off the coolant pump before removing or loosening
liquid-cooled cups and barrels.
To remove the barrel assembly, loosen the patented EZ Lock™ taper lock nut
until it is clear of the threads. Pull barrel out of the gun body.
To replace a barrel assembly, push the barrel assembly into the gun body
until it clicks to a stop. To assure proper seating of the barrel, open the drive/
idler roll door in the top of the handle. The rear face of the barrel should
now be ush with the gun body. Take care not to damage the o-rings when
inserting into the body. Tighten taper lock nut assembly rmly so that barrel
cannot rotate while welding.
Barrel Rotation
To rotate a barrel assembly, loosen the patented EZ Lock™ taper lock nut
assembly no more than 1 turn. Rotate barrel to the position of your choice
and re-tighten taper lock nut assembly rmly so that the barrel cannot rotate.
CAUTION: Do not attempt to weld without the barrel being tightly
secured in the gun body, or damage to the barrel or body may result.
Section D Maintenance
Periodic Maintenance
Your liquid cooled Millermatic Compatible™ Python® is designed to provide
years of reliable service. Maintenance of the gun will normally consist of a
general cleaning of the wire guide system, including barrels, drive rolls, and
conduits at regular intervals.
Remove spatter build-up from inside of nozzles with a hardwood stick.
The only parts that are subject to normal wear are the conduit, contact tips,
nozzles, barrel liners, wire guides, drive and idler rolls. A supply of these
parts should be maintained on hand.
The number of units in operation and the importance of minimal down time
will determine to what extent spare parts should be stocked on hand. See
the recommended spare parts list for the most commonly replaced parts.
It is recommended that you blow out your conduit each time you install a new
spool of wire.
If repairs do become necessary, qualied shop maintenance personnel can
easily replace any part.
Reference the table below for suggested Maintenance Tools used with the
liquid cooled Millermatic Compatible™ Python® welding gun.
Disconnect Power
Before Maintaining.
Maintenance Tools
Tool Part Number
Drive Roll Removal Tool 931-0100
Tip Removal Tool 931-0002
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 6
Recommended Spare Parts
Listed in the table below is the factory recommendation of the necessary
spare parts which should be kept on hand for maintaining proper operation of
the liquid cooled Millermatic Compatible™ Python® welding gun.
This list, in no way, indicates that these parts are more likely to fail or cause
equipment damage. This is not an indication of premature failure or defect in
manufacture of said parts.
Recommended Spare Parts List
Qty. Part Number Description
1 615-0620-15 15' Conduit
1 615-0620-25 25' Conduit
1 615-0620-35 35' Conduit
1 615-0620-50 50' Conduit
2 005-0694 Trigger Assy Kit
2 005-0695 Potentiometer Assy Kit
1 005-0699 Handle Kit
2 005-0701 Micro-Switch Assy Kit
10 511-0101 Drive Roll
5 005-0686 Idler Roll Kit
2 931-0137 Liner Package - 5 pieces each
DRIVE ROLL REMOVAL TOOL
MICRO SWITCH ASSY KIT
CONTACT TIp REMOVER TOOL
931-0100
KNURLED DRIVE ROLL
511-0101
IDLER ROLL KIT
005-0686
005-0701
(SHOWN WITH TIp)
931-0002
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 7
Section E Troubleshooting Guide
To aid in troubleshooting problems with your welding equipment, it is best
to understand the basic theory of operation for this Push-Pull System. The
slave motor in the feeder runs at a fast, constant speed, but has very low
torque. It is always trying to feed more wire than the gun motor wants,
and when the motor gets all it wants, it slows the slave motor, preventing
a bird’s nest. Because of the low torque produced by the slave motor, a
brake system is used to prevent wire overrun rather than tension. The drag
adjustment in the feeder is used simply to keep the wire slightly taut, so it will
not pull off the spool while feeding wire.
The high torque 24VDC gun motor is controlled by an electric speed
control located in the feeder, and a pot located in the gun. The gun motor,
potentiometer, and micro switch are connected to the cabinet/control box via
a control cable and connector. If this cable becomes damaged, a variety of
symptoms can occur, depending on which wire(s) break. To test, check each
wire for continuity and shorts.
Remember, the micro switch in the gun activates both the slave motor and
gun motor circuits in the cabinet. Therefore, if the slave motor and brake
solenoid operate, but the gun does not, look more toward the gun motor’s
24VDC circuits, speed control, control cable, or the gun motor. If nothing
operates, look more toward the slave motor’s input, micro switch leads, or
micro switch.
Disconnect Power
Before Troubleshooting.
Testing The Gun
Reference the "X" clocked diagram
on the liquid cooled Millermatic Compatible™ Python® electrical diagram
for information about pin-outs and locations.
Motor Check
Remove the connector from the cabinet.
Using the connector, check the resistance across pins “C” and “B” (motor
leads). The resistance across the motor should be between 5 - 10 ohms as
the potentiometer is turned.
If an open circuit or short exist, check the motor leads and motor
independently.
Testing the Gun Potentiometer
Using the connector, check the resistance across pin “F” (wiper) and pin
“E”. The resistance should vary from 0 - 5K ohms as the potentiometer is
turned.
Check the resistance across pin “F” (wiper) and pin “H”. The resistance
should vary from 5K - 0 ohms as the potentiometer is turned.
Testing the Micro Switch
Using the connector, check for continuity across pins “D” and “G” when the
trigger is pressed.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 8
Troubleshooting Table
Symptoms Cause Remedy
No wire feed at
gun, feeder not
operating, i.e. no
slave motor or
brake solenoid.
No wire feed
at gun, feeder
operating properly.
Wire feeds, but
welding wire is not
energized.
Wire feeds
erratically.
Wire feeds one
speed only.
Wire walks out of
drive rolls.
Consult wire feeder and welding power supply owners manuals for further
problem solving solutions.
Circuit breaker in feeder/
control box open.
Micro-switch defective/not
being activated.
Broken electrical cable.
Circuit breaker in feeder/
control box open.
Bad potentiometer.
Broken electrical cable.
Loose or no cable
connections.
Welding power source. Check power source.
Dirty or worn conduit.
Wrong size contact tip. See contact tip table.
Idler roll stuck.
Bad potentiometer. Check with meter.
Broken electrical cable.
Bad speed control.
Idler roll upside-down.
Rear wire guide missing. Replace wire guide.
Reset.
Replace switch. Check
switch for operation.
Check micro-switch wires
for continuity.
Check motor leads for
short. Reset.
Check potentiometer with
meter.
Check motor and
potentiometer wires for
continuity.
Check all power
connections.
Blow out or replace
conduit.
Check for lock washer
under idler roll, or replace
if damaged.
Check potentiometer
wires for continuity or
short.
See specic feeder/
control owner's manual for
speed control operation.
Place groove in idler roll
toward top.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 9
Section F Appendices
Liquid Cooled Millermatic Compatible™ Python®
Diagrams / Parts List
Head Assembly Exploded Parts View ....................................... 10
Head Assembly Parts List ......................................................... 11
Front Body Assembly Parts View .............................................. 12
Rear Body Assembly Parts View .............................................. 13
Barrel Assembly Parts View ...................................................... 14
Cup Insulator and O-Ring Maintenance ................................... 15
Lead Assembly Parts View ....................................................... 16
Electrical/Connector Pinout ...................................................... 17
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - Page 10
Liquid Cooled Millermatic Compatible™ Python®
Head Assembly
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 11
Apply compound Noalox to contact surfaces for installation.
Head Assembly
®
Handle Kit: Includes line items 14,19,
and 24
1 005-0699
Liquid Cooled Millermatic Compatible™ Python
1 1 002-0629 Assy Cam Idler Arm 14 9 328-0012 Scr SHC 6-32 x 3/8
2 1 005-0694 Trigger Kit 15 4 333-0005 Wshr Spr LK #6
3 1 003-2108 Assy Front Body W/C Python 16 1 338-0153 Scr SHC 1-72 x 3/8
4 1 003-2125 Assy Knob Pot 17 1 405-0706 Label
5 1 005-0701 Micro Swx Kit 18 1 421-0018 Pin Dowel 3/32 x 7/8
6 1 003-2153 Assy Boot Torch 19 1 431-1622 Scr Shoulder 1/8 x 4-40
7 1 003-2209 Guide Wire Assy 20 1 431-1637 Screw Hex 3/8-20 x 3/8
8 1 005-0695 Assy Speed Control Pot Kit 21 1 435-1585 Strap Motor Python
No. Qty. Part No. Description No. Qty. Part No. Description
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 12
9 1 003-2287 Assy Rear Body W/C Python 22
11 2 319-0254 Scr FH Phil 82 4-40 x 3/8 SST 24 1 437-0253 Door Molded Python
10 1 211-0077 Motor 24VDC 23
12 1 319-0258 Scr FH Phil 82 4-40 5/8 SST 25 1 437-0268 Cover Knob Python
13 2 320-0084 Scr Button 4-40 x 3/16 ST 26 0.30 ft. 737-0048 Tube Insulation 9 AWG, Clear
Liquid Cooled Millermatic Compatible™ Python
Front Body Assembly
P/N 003-2108
®
Items 3, 4 & 9 available
as package kit:
P/N 005-0686
Liquid Cooled Millermatic Compatible™ Python®
No. Qty. Part No. Description
1 - -
2 - -
3* 1 325-0206 10-24 x 3/8 PH Screw
4* 1 333-0082 # 10 Lock Washer
5 1 419-0092 0.29 x 0.047 x 0.32 Comp. Spring
6 1 421-0525 1/8 x 7/8 SST Dowel Pin
7 1 431-1663 Idler Adjusting Screw
8 1 431-1598 Idler Arm
9 1 511-0001* Idler Wire Feed Assembly
10 1 511-0101 Drive roll
* Items 3, 4 & 9 available as package kit: Part number 005-0686
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 13
Front Body Assembly
Not available separately
Liquid Cooled Millermatic Compatible™ Python®
Rear Body Assembly
P/N 003-2287
Liquid Cooled Millermatic Compatible™ Python®
Rear Body Assembly
No. Qty. Part No. Description
1 - - Not available separately
2 6 303-0096 O-Ring .145 ID x .07 W
3 1 321-1104 Set Screw Mod Conduit
4 1 336-0020 Scr PH Phil 4-40 x 5/16 SST
5 1 411-0243 Tie Wrap SCR #4
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 14
APPLY SILICONE LUBRICANT FOR
INSTALLATION
Liquid Cooled Millermatic Compatible™ Python®
Barrel Assembly
P/N 003-2317
*Apply silicone lubricant to
items 5, and 6 before installing.
Millermatic Compatible™ Python® Liquid Cooled 60º
Barrel Assembly
No. Qty. Part No. Description
1 - - Not available separately
2 1 003-2213 Assy Taper Lock Barrel
3 1 261-0141 Insulator Barrel
4 1 261-0381 Insulator Cup with ve O-Rings
5* 8 303-0010 O-Ring .489 ID x .07 W
6* 2 303-0094 O-Ring .301 ID x .07 W
7 1 313-0091 Retaining Ring 0.625 Shaft
8 1 431-0977 Retaining Nut
9 1 431-1774 Cup Insulator Barrel
10 0.70 ft. 615-0178 Liner Tef 0.084 ID x 0.174 OD
11 1 621-0065 Cup #10 Assy
12 1 621-0393 Tip HD Spray .060
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 15
CUP INSULATOR AND O-RING MAINTENANCE
CAUTION: Power-off the coolant pump before disassembling liquid-cooled barrels.
1. Unscrew Retaining Nut and slide back on barrel.
2. Using a rm pull and twist action, the Liquid-Cooled Gas Cup can be removed from the Cup
Insulator.
3. Inspect the Cup Insulator and o-rings (included with Insulator) for wear and proper lubrication.
It is considered good practice to replace all o-rings at the same time.
4. To remove the Cup Insulator, it must be UNSCREWED and pulled from the barrel. Use a rag
or towel (due to o-ring lubrication) and wrap it around the Cup Insulator.
UNSCREW and pull when completly unthreaded from barrel. Be sure the Insulator is fully
unscrewed from the threads. Pulling the Insulator over barrel threads will damage the
threads on the Insulator.
Inspect o-rings on barrel for wear and lubrication. It is considered good practice to replace all
o-rings at the same time.
5. To install the Cup Insulator, it must be pushed all the way onto the barrel then screwed onto
the threads. If necessary, place small amount of o-ring lubricant on the inside diameter of the
Cup Insulator, this will help it slide onto the barrel.
Push the Insulator onto the barrel until it bottoms out, screw onto barrel threads.
The Insulator MUST be all the way onto the barrel to assure proper coolant passage and from
blocking the gas outlet orices.
6. Push Liquid-Cooled Gas Cup onto Cup Insulator. Slide Retaining Nut forward and tighten.
Insulator Barrel
Gas Outlet Orices
Correct Installation
Incorrect Installation
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 16
Liquid CooledMillermatic Compatible™ Python®
Lead Assembly, P/N 003-2309 Series
Liquid Cooled Millermatic Compatible™ Python
No Qty Description 15' Part No. 25' Part No. 35' Part No. 50' Part No.
1 1 Assy Conn Power Pin 003-2322
2 2 Wrap Spiral Cord 261-0094
3 1 Screw K40X12 Pan Head STL 336-0247
4 8 Tie Wrap 411-0045
5 1 Spring Strain Relief 419-0101
6 1 Power Pin Housing LH 437-0286
7 1 Power Pin Housing RH WC 431-1803
8 1 Strain Relief Spring Retainer 437-0287
9 1 Assy Hose Liquid Red 552-0209
10 1 Noalox 823-0029
11 1 Assy Gas Hose 552-0241-15 552-0241-25 552-0241-35 552-0241-50
12 1 Assy Tube Conduit Miller 615-0620-15 615-0620-25 615-0620-35 615-0620-50
13 1 Assy Power Cable WC 843-0680-15 843-0680-25 843-0680-35 843-0680-50
14 1 Assy Controller Cable 843-0624 843-0625 843-0627 843-0626
15 1 Snake Skin 931-0110 931-0122 931-0132 931-0123
16 1 Assy Hose Liquid Blue 552-0239-15 552-0239-25 552-0239-35 552-0239-50
17 1 Cable Boot 301-0019
®
Lead Assembly
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 17
Liquid Cooled Millermatic Compatible™ Python®
Power/Gas Connector
003-2322
Liquid Cooled Millermatic Compatible™ Python®
Power/Gas Connector
No. Qty. Part No. Description
1 1 003-2323 S/A Conn Power Gas WC
2 2 153-1210 Pin Power Assy
3 1 303-0102 O-Ring, 0.487 ID x .103 Width
4 1 321-0070 Set Screw 10-32
5 2 321-1104 Set Screw Mod Conduit
6 1 431-1724 Brass Fitting 1/8 Hose
7 1 431-1742 Wire Outlet Guide
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 18
Liquid Cooled Millermatic Compatible™ Python®
Electrical Schematic/Connector Pinout
Polarizing Key
"X" Clocked Connector
Viewed from back of connector
Do not touch live electrical parts.
WARNING
ELECTRIC
SHOCK HAZARD
•
Disconnect input power or stop
•
engine before servicing.
Do not operate with covers removed.
•
Have only qualied persons install,
•
use, or service this units.
Liquid Cooled Millermatic Compatible™ Python® Owner's Manual - page 19
October 1, 2006
LIMITED WARRANTY - MK Products Inc., Irvine, California warrants
that all new and unused equipment furnished by MK Products is free from
defects in workmanship and material as of the time and place of delivery
by MK Products. No warranty is made by MK Products with respect to
trade accessories or other items manufactured by others. Such trade
accessories and other items are sold subject to the warranties of their
respective manufacturers, if any.
MK Products’ warranty does not apply to components having normal
useful life of less than one (1) year, such as relay points, wire conduit,
tungsten, and welding gun parts that come in contact with the welding
wire, including gas cups, gas cup insulators, and contact tips where failure
does not result from defect in workmanship or material.
MK Products shall, exclusively remedy the limited warranty or any
duties with respect to the quality of goods, based upon the following
options:
(1) repair
(2) replacement
(3) where authorized in writing by MK Products, the reasonable cost of
repair or replacement at our Irvine, California plant.
As a matter of general policy only, MK Products may honor an original
user’s warranty claims on warranted equipment in the event of failure
resulting from a defect within the following periods from the date of
delivery of equipment to the original user:
1. Power Supplies and Wire Feed Cabinets................... 3 years
2. Weldheads, Positioners, Prince XL and Prince XL Spool
Guns, Python, CobraMAX, Cobra SX, Cobra MX...........1 year
3. Sidewinder® Spool Gun, Prince SG Spool Guns,
Modules ..................................................................180 days
4. Repairs/Exchanges/Parts ....................................... 90 days
Classication of any item into the foregoing categories shall be at the
sole discretion of MK Products. Notication of any failure must be made
in writing within 30 days of such failure.
A copy of the invoice showing the date of sale must accompany products
returned for warranty repair or replacement.
All equipment returned to MK Products for service must be properly
packaged to guard against damage from shipping. MK Products will not
be responsible for any damages resulting from shipping.
Normal surface transportation charges (one way) for products returned
for warranty repair or replacement will be borne by MK Products, except
for products sold to foreign markets.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY IMPLIED
WARRANTY, GUARANTY, OR REPRESENTATION AS TO PERFORMANCE,
AND ANY REMEDY FOR BREACH OF CONTRACT WHICH, BUT FOR
THIS PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION OF
LAW, CUSTOM OF TRADE, OR COURSE OF DEALING, INCLUDING ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR
PARTICULAR PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT
FURNISHED BY MK PRODUCTS, IS EXCLUDED AND DISCLAIMED BY
MK PRODUCTS.
EXCEPT AS EXPRESSLY PROVIDED BY MK PRODUCTS IN WRITING,
MK’s PRODUCTS ARE INTENDED FOR ULTIMATE PURCHASE BY COMMERCIAL/INDUSTRIAL USERS AND FOR OPERATION BY PERSONS
TRAINED AND EXPERIENCED IN THE USE AND MAINTENANCE OF
WELDING EQUIPMENT AND NOT FOR CONSUMERS OR CONSUMER
USE. MK PRODUCTS’ WARRANTIES DO NOT EXTEND TO, AND NO
RE-SELLER IS AUTHORIZED TO EXTEND MK PRODUCTS’ WARRANTIES
TO ANY CONSUMER.
U S E O F O T HE R TH AN
G E NU IN E
M K PR O DU CT S’
CONSUMABLES, PARTS, AND ACCESSORIES MAY INVALIDATE YOUR
PRODUCT WARRANTY.
LIMITED WARRANTY
Effective October 1, 2006
This warranty supersedes all previous MK Products warranties and is
exclusive, with no other guarantees or warranties expressed or implied.
Warranty on the Liquid Cooled Millermatic Compatible™ Python® Welding Gun is recognized and admin-
istered by the original equipment manufacturer, known as MK Products, Inc.
16882 Armstrong Ave.
Irvine, CA 92606
Tel (949)863-1234 Fax (949)474-1428
www.mkproducts.com
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