CIGWELD 225 User manual

225, 255
TRANSMIG
POWER SOURCE
Operating
Manual
Version No:5 Issue Date: September 2008 Manual No: 719557
Operating Features
1
PHASE
DCCV 240
V

ii Jan 24, 2008
LEADER IN ARC WELDING TECHNOLOGY
We appreciate your business!
Congratulations on your new CIGWELD product. We are proud to have you
as our customer and will strive to provide you with the best service and
reliability in the industry. This product is backed by our extensive warranty
and world-wide service network. To locate your nearest distributor or
service agency call 1300-654-674, or visit us on the web at
www.cigweld.com.au.
This Operating Manual has been designed to instruct you on the correct
use and operation of your CIGWELD product. Your satisfaction with this
product and its safe operation is our ultimate concern. Therefore please
take the time to read the entire manual, especially the Safety Precautions.
They will help you to avoid potential hazards that may exist when working
with this product.
YOU ARE IN GOOD COMPANY
The Brand of Choice for Contractors and Fabricators. CIGWELD is the
Market Leading Brand of Arc Welding Products for Thermadyne Industries
Inc.
We are a mainline supplier to major welding industry sectors in the Asia
Pacific and emerging global markets including; Manufacturing,
Construction, Mining, Automotive, Engineering, Rural and DIY.
We distinguish ourselves from our competition through market leading
dependable brands that have stood the test of time, technical innovation,
competitive prices, excellent delivery, superior customer service and
technical support, together with excellence in sales and marketing
expertise.
We are committed to develop technologically advanced products to
achieve a safer working environment for industry operators.

Jan 24, 2008 iii
WARNING 1
Read and understand this entire Manual and your employer’s safety practices before installing, operating, or servicing the equipment.
While the information contained in this Manual represents the Manufacturer's best judgement, the Manufacturer assumes no liability for its use.
Welding Power Supply
Instruction Manual Number 719557 for:
TRANSMIG 225 Power Source (Compact) Spec Number 710001
TRANSMIG 255 Power Source (Compact) Spec Number 710007
TRANSMIG 255 Power Source (Remote) Spec Number 710002
TRANSMIG 255 2R Wire Feeder (Remote) Spec Number 707593
Published by:
CIGWELD Pty Ltd
71 Gower Street
Preston, Victoria, Australia, 3072
www.cigweld.com.au
Copyright 2008 by
CIGWELD
All rights reserved.
A reproduction of this work, in whole or in part, without written permission of the publisher is prohibited.
The publisher does not assume and hereby disclaims any liability to any party for any loss or damage caused by any error or omission in
this Manual, whether such error results from negligence, accident, or any other cause.
Publication Date: September 4th, 2008
Record the following information for Warranty purposes:
Where Purchased: ___________________________________________
Purchase Date: ___________________________________________
Equipment Serial #: ___________________________________________

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
4 Sep 16, 2008
TABLE OF CONTENTS
SECTION 1: Arc Welding Safety Instructions and Warnings ........................................................ 5
SECTION 2: Introduction................................................................................................................ 10
SECTION 3: Electromagnetic Compatibility ................................................................................. 10
SECTION 4: General Information................................................................................................... 12
SECTION 5: Safe Practices For The Use Of Welding Equipment................................................ 12
SECTION 6: Resuscitation For Electric Shock Victims................................................................ 14
SECTION 7: Specifications ............................................................................................................ 15
SECTION 8: Installation Recommendations................................................................................. 16
SECTION 9: Set up for the TRANSMIG 225, 255 MIG Power Source........................................... 18
SECTION 10: Power Source and Wirefeeder Controls, Indicators and Features......................... 20
SECTION 11: 250A TWECO MIG Torch OTWX212/3035 (where supplied).................................... 22
SECTION 12: Basic Welding Technique ......................................................................................... 24
SECTION 13: Routine Maintenance & Inspection .......................................................................... 25
SECTION 14: Basic Troubleshooting.............................................................................................. 26
SECTION 15: Key Spare Parts ......................................................................................................... 30
SECTION 16: Volt / Amp Curves...................................................................................................... 31
SECTION 17: Circuit Diagram.......................................................................................................... 32
SECTION 18: Weld Settings Guide TRANSMIG 225....................................................................... 33
SECTION 19: Weld Settings Guide TRANSMIG 255....................................................................... 34
TABLES
Table 1 - Filter lens size verses welding current/electrode size ........................................................................................13
Table 2 –Power Source Specifications...................................................................................................................15
Table 3 –Optional Accessories............................................................................................................................16
Table 4 –Supply Requirements ...........................................................................................................................17
Table 5 –Wire Spool parts .................................................................................................................................19
Table 6 –Interconnection Control Plug configuration ...................................................................................................21
Table 7 –MIG Torch Components ........................................................................................................................22
Table 8 –MIG Torch Contact Tips ........................................................................................................................23
Table 9 –MIG Torch Conduits.............................................................................................................................23
Table 10 –Electrode Wire Deposition Rate ..............................................................................................................24
Table 11 –Key Spare Parts................................................................................................................................30

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 5
SECTION 1: Arc Welding Safety Instructions and Warnings
WARNING 2
ARC WELDING can be hazardous.
Protect yourself and others from possible serious injury or death. Keep children away. Pace maker wearers keep away until
consulting your doctor. Do not lose these instructions. Read operating / instruction manual before installing, operating or
servicing this equipment.
Welding products and welding processes can cause serious injury or death, or damage to other equipment or property, if the operator does not strictly
observe all safety rules and take precautionary actions.
Safe practices have developed from past experience in the use of welding and cutting. These practices must be learned through study and training before
using this equipment. Anyone not having extensive training in welding and cutting practices should not attempt to weld. Certain practices apply to equipment
connected to power lines; other practices apply to engine driven equipment.
Safe practices are out lined in the American National Standard Z49.1 entitled: SAFETY IN WELDING AND CUTTING. This publication and other guides to
what you should learn before operating this equipment are listed at the end of these safety precautions.
HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY QUALIFIED PEOPLE.
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 terminal 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.
1. Do not touch live electrical parts.
2. Wear dry, hole-free insulating gloves and body protection.
3. Insulate yourself from work and ground using dry insulating mats or
covers.
4. Disconnect input power or stop engine before installing or servicing
this equipment. Lock input power disconnect switch open, or remove
line fuses so power cannot be turned on accidentally.
5. Properly install and ground this equipment according to its Owner's
Manual and national, state, and 10 cal codes.
6. Turn off all equipment when not in use. Disconnect power to equipment
if it will be left unattended or out of service.
7. Use fully insulated electrode holders. Never dip holder in water to cool
it or lay it down on the ground or the work surface. Do not touch
holders connected to two welding machines at the same time or touch
other people with the holder or electrode.
8. Do not use worn, damaged, under sized or poorly spliced cables.
9. Do not wrap cables around your body.
10. Ground the workpiece to a good electrical (earth) ground.
11. Do not touch electrode while in contact with the work (ground) circuit.
12. Use only well-maintained equipment. Repair or replace damaged parts
at once.
13. In confined spaces or damp locations, do not use a welder with AC
output unless it is equipped with a voltage reducer. Use equipment with
DC output.
14. Wear a safety harness to prevent falling if working above floor level.
15. Keep all panels and covers securely in place.
ARC RAYS can burn eyes and skin;
NOISE can damage hearing.
Arc rays from the welding process produce intense heat
and strong ultraviolet rays that can burn eyes and skin.
Noise from some processes can damage hearing.
1. Wear a welding helmet fitted with a proper shade of filter (see ANSI
249.1 listed in Safety Standards) to protect your face and eyes when
welding or watching.
2. Wear approved safety glasses. Side shields recommended.
3. Use protective screens or barriers to protect others from flash and
glare; warn others not to watch the arc.
4. Wear protective clothing made from durable, flame-resistant material
(wool and leather) and foot protection.
5. Use approved earplugs or earmuffs if noise level is high.
Eye protection filter shade selector for welding or cutting (goggles or helmet), from AWS A 8.2-73
Welding or Cutting
operation
Electrode size Metal Thickness or
Welding Current
Filter
shade
no.
Welding or Cutting operation
Electrode size Metal
Thickness or Welding
Current
Filter
shade no.
Torch soldering
All
2
Gas metal arc welding
Torch brazing
All
2 or 3
Non Ferrous base metal
All
11
Oxygen cutting
Ferrous base metal
All
12
Light
Under 1 in., 25 mm
3 or 4
Gas tungsten arc welding (TIG)
All
12
Medium
1 –6 in., 25 –150 mm
4 or 5
Atomic Hydrogen welding
All
12
Heavy
Over 6 in., 150 mm
5 or 6
Carbon Arc welding
All
12
Gas welding
Plasma arc Welding
All
12
Light
Under 1/8 in., 3 mm
4 or 5
Carbon Arc Gouging
Medium
1/8 –1/2 in., 3 –12 mm
5 or 6
Light
12
Heavy
Over 1/2 in., 12 mm
6 or 8
Heavy
14
Shielded metal-arc welding (stick) electrodes
Plasma arc cutting
Under 5/32 in., 4 mm
10
Light
Under 300 Amp
9
Under 5/32 to ¼ in., 4 to 6.4mm
12
Medium
300 to 400 Amp
12
Over ¼ in., 6.4 mm
14
Heavy
Over 400 Amp
14

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
6 Sep 16, 2008
FUMES AND GASES can be hazardous
to your health.
Welding produces fumes and gases. Breathing these
fumes and gases can be hazardous to your health.
1. Keep your head out of the fumes. Do not breathe
the fumes.
2. If inside, ventilate the area and/or use exhaust at the arc to remove
welding fumes and gases.
3. If ventilation is poor, use an approved air-supplied respirator.
4. Read the Material Safety Data Sheets (MSDS) and the manufacturer's
instruction for metals, consumables, coatings, and cleaners.
5. Work in a confined space only if it is well ventilated, or while wearing an
air-supplied respirator. Shielding gases used for welding can displace
air causing injury or death. Be sure the breathing air is safe.
6. Do not weld in locations near degreasing, cleaning, or spraying
operations. The heat and rays of the arc can react with vapours to form
highly toxic and irritating gases.
7. Do not weld on coated metals, such as galvanized lead, or cadmium
plated steel, unless the coating is re moved 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.
WELDING can cause fire or explosion.
Sparks and spatter fly off from the welding arc. The
flying sparks and hot metal, weld spatter, hot work
piece, and hot equipment can cause fires and burns.
Accidental contact of electrode or welding wire to
metal objects can cause sparks, over heating, or fire.
1. Protect yourself and others from flying sparks and hot metal.
2. Do not weld where flying sparks can strike flammable material
Remove all flammables within 35ft (10.7 m) of the welding arc. If this is
not possible, tightly cover them with approved covers.
3. Be alert that welding sparks and hot materials from welding can easily
go through small cracks and openings to adjacent areas.
4. Watch for fire, and keep a fire extinguisher nearby.
5. Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
6. Do not weld on closed containers such as tanks or drums.
7. Connect work cable to the work as close to the welding area as practical
to prevent welding current from travelling long, possibly unknown paths
and causing electric shock and fire hazards.
8. Do not use welder to thaw frozen pipes.
9. Remove stick electrode from holder or cut off welding wire at contact tip
when not in use.
Flying sparks and hot metal can
cause Injury
Chipping and grinding cause flying metal. As welds
cool, they can throw off slag.
1. Wear approved face shield or safety goggles. Side shields
recommended.
2. Wear proper body protection to protect skin.
CYLINDERS can explode if damaged.
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 carefuIIy.
1. Protect compressed gas cylinders from excessive heat, mechanical
shocks, and arcs.
2. Install and secure cylinders in an upright position by chaining them to a
stationary support or equipment cylinder rack to prevent falling or tipping.
3. Keep cylinders away from any welding or other electrical circuits.
4. Never allow a welding electrode to touch any cylinder.
5. Use only correct shielding gas cylinders, regulators, hoses and fittings
designed for the specific application; maintain them and associated
parts in good condition.
6. Turn face away from valve outlet when opening cylinder valve.
7. Keep protective cap in place over valve except when cylinder is in use
or connected for use.
8. Read and follow instructions on compressed gas cylinders, associated
equipment, and CGA publication P-1 listed in Safety Standards.
WARNING 3
ENGINES can be dangerous.
ENGINE EXHAUST GASES can kill.
Engines produce harmful exhaust gases
1. Use equipment outside in open, well-ventilated areas.
2. If used in a closed area, vent engine exhaust outside and away from any
building air intakes.
ENGINE FUEL can cause fire or
explosion.
Engine fuel is highly flammable
1. Stop engine before checking or adding fuel.
2. Do not add fuel while smoking or if unit is near any
sparks or open flames.
3. Allow engine to cool before fuelling. If possible, check and add fuel to
cold engine before beginning job.
4. Do not overfill tank - allow room for fuel to expand away from any building
air intakes.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 7
MOVING PARTS can cause injury.
Moving parts, such as fans, rotors, and belts can cut
fingers and hands and catch loose clothing.
1. Keep all doors, panels, covers, and guards
closed and securely in place.
2. Stop engine before installing or connecting unit.
3. Have only qualified people remove guards or covers for maintenance
and troubleshooting as necessary.
4. To prevent accidental starting during servicing, disconnect negative (-)
battery cable from battery.
5. Keep hands, hair, loose clothing, and tools away from moving parts.
6. Re-install panels or guards and close doors when servicing is finished
and before starting engine.
SPARKS can cause BATTERY GASES
TO EXPLODE; BATTERY ACID can burn
eyes and skin.
Batteries contain acid and generate explosive gases
1. Always wear a face shield when working on a battery.
2. Stop engine before disconnecting or connecting battery cables.
3. Do not allow tools to cause sparks when working on a battery.
4. Do not use welder to charge batteries or jump start vehicles.
STEAM AND PRESSURIZED HOT
COOLANT can burn face, eyes, and
skin.
The coolant in the radiator can be very hot and under
pressure
1. Do not remove radiator cap when engine is hot. Allow engine to cool.
2. Wear gloves and put a rag over cap area when removing cap.
3. Allow pressure to escape before completely removing cap.
WARNING: This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State of
California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Sec. 25249.5 et seq.)
NOTE: Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields
The following is a quotation from the General Conclusions Section of the U.S. Congress, Office of Technology Assessment, Biological Effects of Power
Frequency Electric & Magnetic Fields Background Paper OTA-BP-E-63 (Washington, DC: U.S. Government Printing Office, May 1989): "... there is now a
very large volume of scientific findings based on experiments at the cellular level and from studies with animals and people which clearly establish that low
frequency magnetic fields can interact with, and produce changes in, biological systems. While most of this work is of very high quality, the results are
complex. Current scientific understanding does not yet allow us to interpret the evidence in a single coherent framework. Even more frustrating, it does not
yet allow us to draw definite conclusions about questions of possible risk or to offer clear science based advice on strategies to minimize or avoid potential
risks."
To reduce magnetic fields in the work place, use the following procedures:
1. Keep cables close together by twisting or taping them.
2. Do not coil or drape cables around the body.
3. Arrange cables to one side and away from the operator.
4. Keep welding power source and cables as far away from body as
practical.
About Pacemakers: The above procedures are among those also normally recommended for pacemaker wearers. Consult your doctor for complete
information.
1.01 Publications
Refer to the following standards or their latest revisions for more information:
1. OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, obtainable from the Superintendent of Documents, U.S.
Government Printing Office, Washington, D.C. 20402
2. ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING, obtainable from the American Welding Society, 550 N.W.
LeJeune Rd, Miami, FL 33126
3. NIOSH, SAFETY AND HEALTH IN ARC WELDING AND GAS WELDING AND CUTTING, obtainable from the Superintendent of
Documents, U.S. Government Printing Office, Washington, D.C. 20402
4. ANSI Standard Z87.1, SAFE PRACTICES FOR OCCUPATION AND EDUCATIONAL EYE AND FACE PROTECTION,
obtainable from American National Standards Institute, 1430 Broadway, New York, NY 10018
5. ANSI Standard Z41.1, STANDARD FOR MEN‟S SAFETY-TOE FOOTWEAR, obtainable from the American National Standards
Institute, 1430 Broadway, New York, NY 10018
6. ANSI Standard Z49.2, FIRE PREVENTION IN THE USE OF CUTTING AND WELDING PROCESSES, obtainable from American
National Standards Institute, 1430 Broadway, New York, NY 10018
7. AWS Standard A6.0, WELDING AND CUTTING CONTAINERS WHICH HAVE HELD COMBUSTIBLES, obtainable from
American Welding Society, 550 N.W. LeJeune Rd, Miami, FL 33126

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
8 Sep 16, 2008
8. NFPA Standard 51, OXYGEN-FUEL GAS SYSTEMS FOR WELDING, CUTTING AND ALLIED PROCESSES, obtainable from
the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269
9. NFPA Standard 70, NATIONAL ELECTRICAL CODE, obtainable from the National Fire Protection Association, Batterymarch
Park, Quincy, MA 02269
10. NFPA Standard 51B, CUTTING AND WELDING PROCESSES, obtainable from the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
11. CGA Pamphlet P-1, SAFE HANDLING OF COMPRESSED GASES IN CYLINDERS, obtainable from the Compressed Gas
Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202
12. CSA Standard W117.2, CODE FOR SAFETY IN WELDING AND CUTTING, obtainable from the Canadian Standards
Association, Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3
13. NWSA booklet, WELDING SAFETY BIBLIOGRAPHY obtainable from the National Welding Supply Association, 1900 Arch
Street, Philadelphia, PA 19103
14. American Welding Society Standard AWSF4.1, RECOMMENDED SAFE PRACTICES FOR THE PREPARATION FOR
WELDING AND CUTTING OF CONTAINERS AND PIPING THAT HAVE HELD HAZARDOUS SUBSTANCES, obtainable from
the American Welding Society, 550 N.W. LeJeune Rd, Miami, FL 33126
15. 15. ANSI Standard Z88.2, PRACTICE FOR RESPIRATORY PROTECTION, obtainable from American National Standards
Institute, 1430 Broadway, New York, NY 10018
1.02 Declaration of Conformity
Manufacturer and Merchandiser of Quality Consumables and Equipment: CIGWELD
Address: 71 Gower St, Preston
Victoria 3072
Australia
Description of equipment: Welding Equipment (GMAW). TRANSMIG 225, 255 MIG Power Source TRANSMIG 255 2R Wirefeeder and
associated accessories.
* Serial numbers are unique with each individual piece of equipment and details description, parts used to manufacture a unit and date
of manufacture.
* The equipment conforms to all applicable aspects and regulations of the „Low Voltage Directive‟ (Directive 73/23/EU, as recently
changed in Directive 93/68/EU and to the National legislation for the enforcement of the Directive.
National Standard and Technical Specifications
The product is designed and manufactured to a number of standards and technical requirements among them are:
* AS/NZS 3652-(EMC Directive EN50199) applicable to arc welding equipment - generic emissions and regulations.
* AS60974-1 2006 applicable to welding equipment and associated accessories.
* UL-94V0 flammability rating for all Printed Circuit Boards used.
* 92/31/EEC –EMC directive EN50199 applicable to Arc Welding Equipment –generic emissions and regulations.
* Extensive product design verification is conducted at the manufacturing facility as part of the routine design and manufacturing
process, to ensure the product is safe and performs as specified. Rigorous testing is incorporated into the manufacturing process to
ensure the manufactured product meets or exceeds all design specifications.
CIGWELD has been manufacturing and merchandising an extensive equipment range with superior performance, ultra safe operation
and world class quality for more than 30 years and will continue to achieve excellence.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 9
1.03 Limited Warranty
LIMITED WARRANTY: CIGWELD, A Thermadyne Company, hereafter, “CIGWELD” warrants to customers of its authorized distributors hereafter “Purchaser” that its
products will be free of defects in workmanship or material. Should any failure to conform to this warranty appear within the time period applicable to the CIGWELD products
as stated below, CIGWELD shall, upon notification thereof and substantiation that the product has been stored, installed, operated, and maintained in accordance with
CIGWELD‟s specifications, instructions, recommendations and recognized standard industry practice, and not subject to misuse, repair, neglect, alteration, or accident,
correct such defects by suitable repair or replacement, at CIGWELD‟s sole option, of any components or parts of the product determined by CIGWELD to be defective.
CIGWELD MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHERS, INCLUDING, BUT NOT
LIMITED TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.
LIMITATION OF LIABILITY: CIGWELD SHALL NOT UNDER ANY CIRCUMSTANCES BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, SUCH
AS, BUT NOT LIMITED TO, LOST PROFITS AND BUSINESS INTERRUPTION. The remedies of the Purchaser set forth herein are exclusive and the liability of CIGWELD
with respect to any contract, or anything done in connection therewith such as the performance or breach thereof, or from the manufacture, sale, delivery, resale, or use of
any goods covered by or furnished by CIGWELD whether arising out of contract, negligence, strict tort, or under any warranty, or otherwise, shall not, except as expressly
provided herein, exceed the price of the goods upon which such liability is based. No employee, agent, or representative of CIGWELD is authorized to change this warranty
in any way or grant any other warranty.
PURCHASER‟S RIGHTS UNDER THIS WARRANTY ARE VOID IF REPLACEMENT PARTS OR ACCESSORIES ARE USED WHICH IN CIGWELD‟S SOLE
JUDGEMENT MAY IMPAIR THE SAFETY OR PERFORMANCE OF ANY CIGWELD PRODUCT. PURCHASER‟S RIGHTS UNDER THIS WARRANTY ARE VOID IF THE
PRODUCT IS SOLD TO PURCHASER BY NON-AUTHORIZED PERSONS.
The warranty is effective for the time stated below beginning on the date that the authorized distributor delivers the products to the Purchaser. Notwithstanding the
foregoing, in no event shall the warranty period extend more than the time stated plus one year from the date CIGWELD delivered the product to the authorized distributor.
Terms of Warranty –July 2007
1. The Trade Practices Act 1974 (Commonwealth) and similar State Territory legislation relating to the supply of goods and services, protects consumers' interests by
ensuring that consumers are entitled in certain situations to the benefit of various conditions, warranties, guarantees, rights and remedies (including warranties as to
merchantability and fitness for purpose) associated with the supply of goods and services. A consumer should seek legal advice as to the nature and extent of these
protected interests. In some circumstances, the supplier of goods and services may legally stipulate that the said conditions, warranties, guarantees, rights and
remedies are limited or entirely excluded. The warranties set out in Clause 2 shall be additional to any non-excludable warranties to which the Customer may be
entitled pursuant to any statute.
2. Subject to Clause 3. CIGWELD gives the following warranties to the Customer:
Insofar as they are manufactured or imported by CIGWELD, goods will upon delivery be of merchantable quality and reasonably fit for the purpose for which they are
supplied by CIGWELD.
CIGWELD will repair or, at its option, replace those of the goods which, upon examination, are found by CIGWELD to be defective in workmanship and/or materials.
CIGWELD reserves the right to request documented evidence of date of purchase.
3. The Warranty in Clause 2;
Is conditional upon:
The Customer notifying CIGWELD or our Accredited Distributor in writing of its claim within seven (7) days of becoming aware of the basis thereof, and at its own
expense returning the goods which are the subject of the claim to CIGWELD or nominated Accredited Distributor/Accredited Service Provider.
The goods being used in accordance with the Manufacturer's Operating Manuals, and under competent supervision.
Does not apply to:
Obsolete goods sold at auction, second-hand goods and prototype goods.
Breakdown or malfunction caused by accident, misuse or normal wear and tear.
Repairs or replacement made other than by CIGWELD or Accredited Service Providers, unless by prior arrangement with CIGWELD.
Replacement parts or accessories which may affect product safety or performance and which are not manufactured, distributed or approved by CIGWELD.
4. CIGWELD declares that, to the extent permitted by law, it hereby limits its liability in respect of the supply of goods which are not of a kind ordinarily acquired for
personal, domestic or household use or consumption to any one or more of the following (the choice of which shall be at the option of CIGWELD).
The replacement of the goods or the supply of equivalent goods.
The repair of goods.
The payment of cost of replacing the goods or acquiring equivalent goods.
The payment of the cost of having goods repaired.
5. Except as provided in Clauses 2 to 4 above, to the extent permitted by statute, CIGWELD hereby excludes all liability for any loss, damage, death or injury of any kind
whatsoever occasioned to the Customer in respect of the supply of goods including direct, indirect, consequential or incidental loss, damage or injury of any kind.
Warranty Schedule –January 2007
These warranty periods relate to the warranty conditions in clause 2. All warranty periods are from date of sale from the Accredited Distributor of the equipment.
Notwithstanding the foregoing, in no event shall the warranty period extend more than the time stated plus one year from the date CIGWELD delivered the product to the
Accredited Distributor. Unless otherwise stated the warranty period includes parts and labour.
CIGWELD reserves the right to request documented evidence of date of purchase.
CIGWELD MIG WELDING EQUIPMENT
WARRANTY PERIOD
TRANSMIG 225, 255 MIG Power Source, 255 2R Wirefeeder
Original Main Power Rectifier, Main Power Magnetics, Control Printed Circuit Boards .................................................................................
.............................3 years
All other circuits and components including, but not limited to, relays, switches, contactors, solenoids, fans, power switch semi-
conductors........................................................................................................................................................................................................
..............................1 year
ACCESSORIES
MIG torch (where fitted) ...................................................................................................................................................................................
........................... 3 months
MIG torch consumable items...........................................................................................................................................................................
................................ NIL
Please note that the information detailed in this statement supersedes any prior published data produced by CIGWELD.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
10 Sep 16, 2008
WARNING 4
For the purpose of safety and performance and to protect your CIGWELD Equipment Warranty always use genuine CIGWELD
replacement parts and accessories.
SECTION 2: Introduction
2.01 How to Use This Manual
This Owner‟s Manual usually applies to just the underlined
specification or part numbers listed on the page 3. If none are
underlined, they are all covered by this manual.
To ensure safe operation, read the entire manual, including the
chapter on safety instructions and warnings.
Throughout this manual, the word WARNING,
CAUTION and NOTE may appear. Pay particular attention to the
in formation provided under these headings. These special
annotations are easily recognized as follows:
WARNING
Gives information regarding possible personal injury.
Warnings will be enclosed in a box such as this.
CAUTION
Refers to possible equipment damage. Cautions will be
shown in bold type.
NOTE
Offers helpful information concerning certain operating
procedures. Notes will be shown in italics.
2.02 Equipment Identification
The unit‟s identification number (specification or part number),
model, and serial number usually appear on a nameplate attached
to the machine.
Equipment which does not have a nameplate attached to the
machine is identified only by the specification or part number
printed on the shipping container. Record these numbers for future
reference.
2.03 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:
CIGWELD, Customer Care Department, 71 Gower St, Preston,
Victoria, Australia, 3072.
Include all equipment identification numbers as described above
along with a full description of the parts in error.
Additional copies of this manual may be purchased by contacting
CIGWELD, Customer Care Department, at the address given
above. Include the Owner‟s Manual number and equipment
identification numbers.
SECTION 3: Electromagnetic Compatibility
WARNING 5
Extra precautions for Electromagnetic Compatibility may be required when this Welding Power Source is used in a
domestic situation.
3.01 Installation and use - Users Responsibility
The user is responsible for installing and using the welding equipment according to the manufacturer‟s instructions. If
electromagnetic disturbances are detected then it shall be the responsibility of the user of the welding equipment to resolve the
situation with the technical assistance of the manufacturer. In some cases this remedial action may be as simple as earthing the
welding circuit, see NOTE 1. In other cases it could involve constructing an electromagnetic screen enclosing the Welding Power
Source and the work, complete with associated input filters. In all cases, electromagnetic disturbances shall be reduced to the
point where they are no longer troublesome.
NOTE 1
The welding circuit may or may nor be earthed for safety reasons. Changing the earthing arrangements should only be
authorised by a person who is competent to assess whether the changes will increase the risk of injury, e.g. by allowing
parallel welding current return paths which may damage the earth circuits of other equipment. Further guidance is given
in IEC 974-13 Arc Welding Equipment - Installation and use (under preparation).

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 11
3.02 Assessment of Area
Before installing welding equipment, the user shall make an assessment of potential electromagnetic problems in the
surrounding area. The following shall be taken into account
i) Other supply cables, control cables, signalling and telephone cables; above, below and adjacent to the welding
equipment.
ii) Radio and television transmitters and receivers.
iii) Computer and other control equipment.
iv) Safety critical equipment, e.g. guarding of industrial equipment.
v) The health of people around, e.g. the use of pacemakers and hearing aids.
vi) Equipment used for calibration and measurement.
vii) The time of day that welding or other activities are to be carried out.
viii) The immunity of other equipment in the environment: the user shall ensure that other equipment being used in
the environment is compatible: this may require additional protection measures.
The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking
place. The surrounding area may extend beyond the boundaries of the premises.
3.03 Methods of Reducing Electromagnetic Emissions
a) Mains Supply
Welding equipment should be connected to the mains supply according to the manufacturer‟s recommendations. If
interference occurs, it may be necessary to take additional precautions such as filtering of the mains supply.
Consideration should be given to shielding the supply cable of permanently installed welding equipment in metallic conduit
or equivalent.
Shielding should be electrically continuous throughout it‟s length. The shielding should be connected to the Welding Power
Source so that good electrical contact is maintained between the conduit and the Welding Power Source enclosure.
b) Maintenance of Welding Equipment
The welding equipment should be routinely maintained according to the manufacturer‟s recommendations. All access and
service doors and covers should be closed and properly fastened when the welding equipment is in operation. The
welding equipment should not be modified in any way except for those changes and adjustments covered in the
manufacturer‟s instructions. In particular, the spark gaps of arc striking and stabilising devices should be adjusted and
maintained according to the manufacturer‟s recommendations.
c) Welding Cables
The welding cables should be kept as short as possible and should be positioned close together, running at or close to the
floor level.
d) Equipotential Bonding
Bonding of all metallic components in the welding installation and adjacent to it should be considered. However. Metallic
components bonded to the work piece will increase the risk that the operator could receive a shock by touching the
metallic components and the electrode at the same time. The operator should be insulated from all such bonded metallic
components.
e) Earthing of the Workpiece
Where the workpiece is not bonded to earth for electrical safety, nor connected to earth because of it‟s size and position,
e.g. ship‟s hull or building steelwork, a connection bonding the workpiece to earth may reduce emissions in some, but not
all instances. Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to users, or
damage to other electrical equipment. Where necessary, the connection of the workpiece to earth should be made by
direct connection to the workpiece, but in some countries where direct connection is not permitted, the bonding should be
achieved by suitable capacitance, selected according to national regulations.
f) Screening and Shielding
Selective screening and shielding of other cables and equipment in the surrounding area may alleviate problems of
interference. Screening the entire welding installation may be considered for special applications.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
12 Sep 16, 2008
SECTION 4: General Information
4.01 TRANSMIG 225, 255 MIG Power Source, 255 2R Wirefeeder
The TRANSMIG 225, 255 MIG Power Source is a semi-automatic Gas Metal Arc Welder (GMAW-commonly MIG) with either an
integrated or a separate wire feed unit. The Power Source is designed to meet the broad operating needs of the metal
fabrication industry where production efficiency is vital. They are designed to meet the requirements of international standard
EN60974-1 and Australian Standard AS60974-1.
The TRANSMIG 225, 255 MIG Power Source gives excellent performance on mild steel, stainless steel, aluminium, silicon
bronze and some hard facing wires with Argon based shielding gases. The Power Source also gives excellent results on mild
steel using Carbon Dioxide shielding gas.
The TRANSMIG 225, 255 MIG Power Source is supplied as a complete package ready to weld (apart from shielding gas,
electrode wire and Hiderok TM welding helmet). The following instructions detail how to correctly set up the machine and give
guidelines on gaining the best production efficiency from the Power Source. Please read these instructions thoroughly before
using your welder.
4.02 User Responsibility
This equipment will perform as per the information contained herein when installed, operated, maintained and repaired in
accordance with the instructions provided. This equipment must be checked periodically. Defective equipment (including
welding leads) should not be used. Parts that are broken, missing, plainly worn, distorted or contaminated, should be replaced
immediately. Should such repairs or replacements become necessary, it is recommended that such repairs be carried out by
appropriately qualified persons approved by CIGWELD. Advice in this regard can be obtained by contacting accredited
CIGWELD Distributor.
This equipment or any of its parts should not be altered from standard specification without prior written approval of CIGWELD.
The user of this equipment shall have the sole responsibility for any malfunction which results from improper use or unauthorised
modification from standard specification, faulty maintenance, damage or improper repair by anyone other than appropriately
qualified persons approved by CIGWELD.
4.03 Duty Cycle
The rated duty cycle of a Welding Power Source, is a statement of the time it may be operated at its rated welding current output
without exceeding the temperature limits of the insulation of the component parts. To explain the 10 minute duty cycle period the
following example is used. Suppose a Welding Power Source is designed to operate at a 30% duty cycle, 255 amperes at 26.5
volts. This means that it has been designed and built to provide the rated amperage (255A) for 3 minutes, i.e. arc welding time,
out of every 10 minute period (30% of 10 minutes is 3 minutes). During the other 7 minutes of the 10 minute period the Welding
Power Source must idle and allowed to cool. The thermal cutout will operate if the duty cycle is exceeded.
SECTION 5: Safe Practices For The Use Of Welding Equipment
In many situations the “striking” voltage can be hazardous. Any person touching simultaneously the electrode lead/terminal and the work
lead/terminal may receive a serious electrical shock. Additional precautions must be exercised where two Welding Power Sources are
being used close to each other because, under certain conditions, the voltages between the welding terminals of the two Welding Power
Sources could be two times the specified open circuit voltage.
It is essential that the Welding Power Source is correctly installed, if necessary, by a qualified electrician and maintained in sound
mechanical and electrical condition. It is also important that the Welding Power Source be switched off when not in use.
0
20
40
60
80
100
020 40 60 80 100 120 140 160 180 200 220 240 260 280
Welding Current (Amps)
Duty Cycle (%)
Safe Operating
ZONE 225 255

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 13
5.01 Precautions to be Taken by Operators
Whenever practicable, all parts of the welding circuit should be isolated from earth and other conducting material and under
no circumstances should any earthing conductor of the electrical installation be used in place of the work lead.
The Mains supply voltage should be switched off before connecting or disconnecting welding leads. Welding lead
connections must have clean contact surfaces and must be securely tightened. Poor connections will result in overheating
and loss of welding current. All parts of the welding circuit, including the return paths, are to be considered electrically alive,
so the operator must ensure that no part of the body is placed in such a position that it will provide a path for an electric
current.
Welding operators should avoid direct contact with the work to be welded or against any metal in contact with the work.
When this cannot be avoided the operator must not touch any exposed portion of the electrode holder with any part of the
body. Should this occur, the operator will risk completing the electrical circuit through the body.
When welding in confined spaces, where reasonable movement is restricted, particular care must be taken to ensure that the
area is well ventilated and the operator is under constant observation by a person who can immediately switch off the power
and give assistance in an emergency.
The flux covering of an electrode cannot be assumed to provide effective insulation, consequently an insulating glove must
be worn when placing an electrode into its holder, or should it be necessary to handle an electrode once it is in contact with
its holder.
During pauses between welding runs, electrode holders, TIG torches and MIG torches should be so placed that they cannot
make electrical contact with persons or conductive objects.
The welding leads, both the electrode lead, TIG torch lead or MIG torch lead and the work lead, must be protected from
damage. Damaged leads must not be used.
Keep combustible materials away from the welding area. Have a suitable fire extinguisher handy.
Do not stand on damp ground when welding.
5.02 Personal Protection
The radiation from an electric arc during the welding process can seriously harm eyes and skin. It is essential that the following
precautions be taken:
Gloves should be flameproof gauntlet type to protect hands and wrists from heat burns and harmful radiations. They should
be kept dry and in good repair.
Protective clothing must protect the operator from burns, spatter and harmful radiation. Woollen clothing is preferable to
cotton because of its greater flame resistance. Clothing should be free from oil or grease. Wear leggings and spats to
protect the lower portion of the legs and to prevent slag and molten metal from falling into boots or shoes.
Welding Faceshield
It is a requirement to use a welding Faceshield, complying to a relevant standard, when electric arc welding. Use a welding
Faceshield in serviceable condition and fitted with an eye filter lens to safely reduce harmful radiation from the arc as per
Table 1.
Welding Process
Welding current range
Suggested Filter Lens
GMAW
40 –150A
Shade 10
GMAW
150 –250A
Shade 11
GMAW
250 –300A
Shade 12
GMAW
300 –400A
Shade 13
GMAW
Over 400A
Shade 14
Table 1 - Filter lens size verses welding current/electrode size
Protective filter lenses are provided to reduce the intensity of radiation entering the eye thus filtering out harmful infra-red,
ultra-violet radiation and a percentage of the visible light. Such filter lenses are incorporated within welding handshields. To
prevent damage to the filter lenses from molten or hard particles an additional hard clear glass or special plastic external
cover lens is provided. This cover lens should always be kept in place and replaced before the damage impairs your vision
while welding.
Notes:
Recognised standards for recommended practices for occupational eye protection include AS/ANZ 1336 and EN 175.
For maximum possible protection, the use of full helmet equipment is recommended.
The indicated filter lens shade numbers are minimum. If any discomfort is felt, higher shade numbers (i.e. darker filters)
should be used.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
14 Sep 16, 2008
SECTION 6: Resuscitation For Electric Shock Victims
Electric shock may kill immediately. Early resuscitation is required if a life is to be saved. Every Second Counts! Electrical currents may:
Stop the heart;
Cause contraction of the muscles of the body;
Paralyse breathing due to paralysis of the centre of respiration in the brain;
Cause burns.
The victims often cannot free themselves from the current and may not be able to breathe due to fixation of the chest.
6.01 Resuscitation
Efficient resuscitation requires training which is available from the St John‟s Ambulance Association, Red Cross and other
sources.
1 Don‟t become a victim. Switch off power if possible. If
not, remove victim from contact, using some insulating
material.
2 If unconscious, place victim on their side and clear vomit
and other foreign matter from mouth. Check for breathing
by look, listen and feel. If not breathing, commence
expired air resuscitation (E.A.R.). This should take no
longer than 3 or 4 seconds.
3 Place victim flat on their back on a hard surface, open
airway - using head tilt and jaw support as shown.
4 Begin artificial breathing - 5 full breaths in 10 seconds,
sealing nostrils with cheek or holding nose closed.
5 Check carotid pulse in neck. If pulse is present,
continue E.A.R.
15 breaths per minute for adults.
20 breaths per minute for children.
7 Check for return of pulse and breathing after 1 minute
and at least every 2 minutes. Continue uninterrupted
until trained assistance is available. When breathing
and pulse return, turn on side and continue
observation.
6 If pulse is absent and you have been trained, begin cardio
pulmonary resuscitation (C.P.R).
Cardiac Compression - depress lower end of breast bone
(sternum) 4cm to 5cm, less for small children.
One rescuer - 2 breaths, 15 compressions in 15 seconds,
i.e. 4 cycles per minute.
Two rescuers - 1 breath, 5 compressions in 5 seconds, i.e.
12 cycles per minute.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 15
SECTION 7: Specifications
7.01 TRANSMIG 225, 255 MIG Power Source Specifications
Description (Refer NOTE 2)
TRANSMIG 225
Compact
TRANSMIG 255
Compact
TRANSMIG 255
Remote
Plant Assembly
710001
710007
710002
Plant Mass
84 kg
88 kg
104 kg
Plant Dimensions (including cylinder carrier
& excluding wheels)
H 1000mm x W 430mm x D 880mm
Power Source Part Number
707564
707565
707566
Power Source Mass
80 kg
83kg
80 kg
Maximum Inlet Gas Pressure
1.2 MPa (gas hose)
1.2 MPa (gas hose)
1.2 MPa (gas hose)
Suitable Gas Types
Argon based mixed gases &
C02
Argon based mixed gases &
C02
Argon based mixed gases &
C02
Description (Refer NOTE 2)
TRANSMIG 225 MIG Power Source
TRANSMIG 255 MIG Power Source
Supply Input Voltage
220 VAC
240 VAC
220 VAC
240 VAC
Number of Phases & Frequency
1 phase 50 / 60 Hz
1 phase 50 / 60 Hz
Rated Input Current @ 100% Duty Cycle
22.4A
20.5A
31A
28A
Rated kVA @ 100% Duty Cycle
4.0 kVA
4.0 kVA
5.5 kVA
5.5 kVA
Maximum Input Current
48.0A
44A
54A
50A
Generator Requirements
10.5 kVA
10.5 kVA
12 kVA
12 kVA
Supply VA @ no load
970 VA
1120 VA
970 VA
1120 VA
Supply VA @ max. output
9.8 kVA
9.8 kVA
12.2 kVA
11.7 kVA
Power Factor @ max. output
0.85
0.85
0.85
0.85
Open Circuit Voltage Range
19 to 41V
19 to 41V
18 to 41V
18 to 41V
Output Current Range
30 –225A
30 –225A
30 –255A
30 –255A
Rated Outlet Maximum Duty Cycle
30A
30A
A
35A
Recommended Fuse Size
30A
30A
35A
35A
Rated Output Duty Cycle
225A@ 25%
225A@ 25%
255A@ 30%
255A@ 30%
100% Duty Cycle Output Rating
110A
110A
137A
137A
Operating Temperature Range
0ºC - 40ºC
0ºC - 40ºC
0ºC - 40ºC
0ºC - 40ºC
Duty Cycle Period
10 minutes
10 minutes
10 minutes
10 minutes
Number of Output Voltage Switch Settings
16
16
16
16
Wire Size Range
Hard Wire: 0.6mm –0.9mm
Soft Wire: 0.8mm - 1.2mm
Fluxcored Wire: 0.6mm –1.2mm
Hard Wire: 0.6mm –0.9mm
Soft Wire: 0.8mm –1.2mm
Fluxcored Wire: 0.6mm –1.2mm
Table 2 –Power Source Specifications
The Rated Input Current should be used for the determination of cable size & supply requirements.
Motor start fuses or thermal circuit breakers are recommended for this application. Check local requirements for your situation in
this regard.
Generator Requirements at the Maximum Output Duty Cycle.
Reduced output ratings apply with the supplied 15A supply cable. To achieve these ratings the 15A supply cable and plug must be
replaced with a larger plug and cable as specified in section 8.04. This must be carried out be a qualified electrical tradesperson.
NOTE 2
Due to variations that can occur in manufactured products, claimed performance, voltages, ratings, all capacities,
measurements, dimensions and weights quoted are approximate only. Achievable capacities and ratings in use and operation
will depend upon correct installation, use, applications, maintenance and service.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
16 Sep 16, 2008
Description (Refer NOTE 2)
For Fitted 15A supply cable
TRANSMIG 225 MIG Power Source
TRANSMIG 255 MIG Power Source
Supply Input Voltage
220 VAC
240 VAC
220 VAC
240 VAC
Rated Outlet Maximum Duty Cycle
20A
A
25A
A
Recommended Fuse Size
20A
20A
25A
25A
Rated Output Duty Cycle
160A@ 40%
160A@ 40%
190A@ 23%
190A@ 23%
100% Duty Cycle Output Rating
105A
105A
110A
110A
7.02 Optional Accessories
Part Number
Description
OTWX212/3035
TWECO 2, 250A MIG torch, 3.6 metre EURO
OTWX412/3545
TWECO 4, 400A MIG torch, 3.6 metre EURO
7977036
Feed Roll 0.6 / 0.8 HARD
7977660
Feed Roll 0.9 / 1.2 HARD
7977731
Feed Roll 0.8 / 0.9 SOFT
7977264
Feed Roll 1.0 / 1.2 SOFT
7977732
Feed Roll 0.8 / 0.9 CORED
704277
Feed Roll 1.2 / 1.6 CORED
210254
Regulator 600 Argon –55lpm 2G
705000
MIG pliers (size No 1)
705001
MIG pliers (size No 2)
Table 3 –Optional Accessories
NOTE 3
Two feedrolls are required for each electrode wire size used
SECTION 8: Installation Recommendations
8.01 Environment
These units are not designed for use in environments with increased hazard of electric shock.
a) Examples of environments with increased hazard of electric shock are -
i) In locations in which freedom of movement is restricted, so that the operator is forced to perform the work in a
cramped (kneeling, sitting or lying) position with physical contact with conductive parts;
ii) In locations which are fully or partially limited by conductive elements, and in which there is a high risk of
unavoidable or accidental contact by the operator, or
iii) In wet or damp hot locations where humidity or perspiration considerable reduces the skin resistance of the
human body and the insulation properties of accessories.
b) Environments with increased hazard of electric shock do not include places where electrically conductive parts in the
near vicinity of the operator, which can cause increased hazard, have been insulated.
8.02 Location
Be sure to locate the welder according to the following guidelines:
a) In areas, free from moisture and dust.
b) Ambient temperature between 0o C to 400C.
c) In areas, free from oil, steam and corrosive gases.
d) In areas, not subjected to abnormal vibration or shock.
e) In areas, not exposed to direct sunlight or rain.
f) Place at a distance of 300mm or more from walls or similar that could restrict natural air flow for cooling.

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 17
8.03 Ventilation
Since the inhalation of welding fumes can be harmful, ensure that the welding area is effectively ventilated.
8.04 Mains Supply Voltage Requirements
The Mains supply voltage should be within 10% of the rated Mains supply voltage. Too low a voltage may cause poor welding
performance. Too high a supply voltage will cause components to overheat and possibly fail.
The Welding Power Source must be:
Correctly installed, if necessary, by a qualified electrician.
Correctly earthed (electrically) in accordance with local regulations.
Connected to the correct size power point and fuse for each Power Source as per the Specifications on page 15.
The TRANSMIG 225, 255 MIG Power Source is supplied with a 15 Amp input lead.
The TRANSMIG 225, 255 MIG Power Source is factory connected for 240 VAC supply voltage:
The TRANSMIG 225, 255 MIG Power Source is suitable for the following Mains supply voltages:
The following Mains Current Circuit recommendations are required to obtain the maximum welding current and duty cycle from
these welding products:
Model
Mains Supply
Voltage Setting
Mains Supply
Lead Size
Minimum Mains
Current Circuit Size
Fuse Size
Machines Duty
Cycle
TRANSMIG 225
220V
2.5 mm2
30 Amp
30Amp
225A @ 25%
TRANSMIG 225
240V
2.5 mm2
30 Amp
30Amp
225A @ 25%
TRANSMIG 255
220V
6 mm2
35 Amp
35Amp
255A @ 30%
TRANSMIG 255
240V
6 mm2
35 Amp
35Amp
255A @ 30%
Table 4 –Supply Requirements
8.05 Mains Supply Voltage Requirements
The TRANSMIG 225, 255 can be rewired to operate from a 220VAC mains supply voltage.
WARNING 6
CIGWELD ADVISES THAT A QUALIFIED ELECTRICAL TRADESPERSON REWIRE YOUR TRANSMIG 225, 255
FOR 220VAC OPERATION
Disconnect the TRANSMIG 225, 255 from the mains supply
Disconnect NEUTRAL (Blue) from terminal 2 and reconnect it to terminal 3 on the supply cable terminal block
The TRANSMIG 225, 255 is now ready for operation at 220VAC mains supply voltage
SUPPLY LEAD CONNECTION

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
18 Sep 16, 2008
SECTION 9: Set up for the TRANSMIG 225, 255 MIG Power Source
9.01 Power Source Connections
a) Remove all packaging materials.
b) Connect the work lead to the negative welding terminal (-) [positive welding terminal (+) for flux cored electrode wire]. If in
doubt, consult the electrode wire manufacturer.
c) Position a gas cylinder on the rear tray of the Power Source and lock securely to the Power Source cylinder bracket with
the chain provided. If this arrangement is not used or the Power Source is not fitted with a gas cylinder tray then ensure
that the gas cylinder is secured to a building pillar, wall bracket or otherwise securely fixed in an upright position.
9.02 Wirefeeder Connections (Remote models only)
a) Connect the welding power cable from the Wirefeeder's interconnection cables to the positive welding terminal (+)
[negative welding terminal (-) for flux cored electrode wire]. If in doubt, consult the electrode wire manufacturer.
b) Connect the control cable from the Wirefeeder to the socket on the Power Source.
c) Fit the gas regulator and flowmeter to the gas cylinder then connect the gas hose from the rear of the Wirefeeder to the
Flowmeter outlet.
d) Dual groove feed rollers are supplied as standard. They can
accommodate 0.9 / 1.2 diameter hard wires. Select the roller required with
the chosen wire size marking facing outwards.
e) Fit the electrode wire spool to the wire reel hub. Ensure that the drive
dog-pin engages the mating hole in the wire spool. Push the 'R' clip into place to retain the wire spool securely. The
electrode wire should feed from the bottom of the spool.
f) MIG Torch, EURO MIG Torch Connection
Fit the MIG Torch to the Wirefeeder by pushing the torch connector into the brass torch adaptor and screwing the plastic
torch nut clockwise to secure the torch to the torch adaptor. Remove the contact tip from the torch handset.
9.03 Wirefeeder Connections (Compact models only)
a) Connect the TORCH power cable to the positive welding terminal (+) [negative welding terminal (-) for flux cored electrode
wire]. If in doubt, consult the electrode wire manufacturer.
b) Fit the gas regulator and flowmeter to the gas cylinder then connect the gas hose from the rear of the Power Source to the
Flowmeter outlet.
c) Dual groove feed rollers are supplied as standard. They can
accommodate 0.6 / 0.8 diameter hard wires. Select the roller required with
the chosen wire size marking facing outwards.
d) Fit the electrode wire spool to the wire reel hub. Ensure that the drive
dog-pin engages the mating hole in the wire spool. Push the 'R' clip into place to retain the wire spool securely. The
electrode wire should feed from the bottom of the spool.
e) MIG Torch, EURO MIG Torch Connection
Fit the MIG Torch to the Power Source by pushing the torch connector into the brass torch adaptor and screwing the plastic
torch nut clockwise to secure the torch to the torch adaptor. Remove the contact tip from the torch handset.
9.04 Common Connections
a) Lift up the wire feeder pressure levers and pass the electrode wire through the inlet guide, between the rollers, through the
centre guide, between the rollers, through the outlet guide and into the MIG torch.
GROOVE “B”GROOVE “A”
GROOVE “A” SIZE
GROOVE “B” SIZE
GROOVE “B”GROOVE “A”
GROOVE “A” SIZE
GROOVE “B” SIZE

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
Sep 16, 2008 19
b) Lift up the wire feeder pressure levers and pass the electrode wire through the inlet guide, between the rollers, through the
centre guide, between the rollers, through the outlet guide and into the MIG torch.
WARNING 7
DO NOT WEAR GLOVES WHILE THREADING THE WIRE OR CHANGING THE WIRE SPOOL.
c) Lower the pressure levers and with the torch lead reasonably straight, feed the electrode wire through the torch. Fit the
appropriate contact tip, eg a 0.8mm tip for 0.8mm wire.
d) Press the Torch switch to feed the wire through the torch.
WARNING 8
The electrode wire will be at welding voltage potential whilst it is being fed through the wirefeeder system if the wire is
fed by using the TORCH SWITCH
9.05 Drive Roller Pressure Adjustment
The moveable rollers apply pressure to the grooved feed rollers via a scaled adjustable tension screw. These devices should be
adjusted to a minimum pressure that will provide satisfactory WIREFEED without slippage. If slipping occurs, and inspection of
the wire contact tip reveals no wear, distortion or burn back jam, the conduit liner should be checked for kinks and clogging by
metal flakes and swarf. If it is not the cause of slipping, the feedroll pressures can be increased by rotating the scaled tension
screws clockwise. The use of excessive pressure may cause rapid wear of the feed rollers, shafts and bearing.
9.06 Wire Reel Brake
The wire reel hub incorporates a friction brake which is adjusted during manufacture for optimum breaking. If it is considered
necessary, adjustment can be made by turning the large nut inside the open end of the hub clockwise to tighten the brake.
Correct adjustment will result in the wire reel circumference continuing no further than 20mm after release of the trigger. The
electrode wire should be slack without becoming dislodged from wire spool
CAUTION 1
Overtension of brake will cause rapid wear of mechanical WIREFEED parts, overheating of electrical componentry and
possibly an increased incidence of electrode wire Burnback into contact tip
9.07 Wire Reel Hub Assembly
Item Number
Part Number / Description
1
7976411 / friction Washer
2
NB1245 / washer flat M16
3
7977187 / washer wave M16
4
7958040 / nut nyloc 5/8 BSW
--
702337 / Hub
Table 5 –Wire Spool parts
friction washer
(7976411) Wire spool hub
(702337) Steel flat washer 16mm ID
(NB1245)
Wave washer
(7977187)
Steel flat washer 16mm ID
(NB1245)
Nut 5/8” BSW
(7958040)

TRANSMIG 225, 255 MIG Power Source, 255 2R MIG Wirefeeder
20 Sep 16, 2008
SECTION 10: Power Source and Wirefeeder Controls, Indicators and Features
10.01 Standby switch with in-built Indicator Light
The indicator light is provided to indicate when the TRANSMIG 225, 255 MIG Power Source is connected to the Mains Supply voltage.
With the switch in the STANDBY position, the auxiliary power and the fan are turned off.
WARNING 9
When the light is lit, the machine is connected to the Mains supply voltage and the internal electrical components are at
Mains voltage potential.
10.02 Wirespeed Control
The Wirespeed Control knob controls the welding current via the electrode wirefeed rate. ie the speed of the wirefeed motor.
10.03 Output Voltage Control Switch (Coarse)
The Coarse Voltage Control switch increases the voltage (in larger increments than the Fine switch) as it is rotated in the clockwise
direction.
10.04 Output Voltage Control Switch (Fine)
The Fine Voltage Control switch increases the voltage (in smaller increments than the Coarse switch) as it is rotated in the clockwise
direction.
CAUTION 2
The Coarse and Fine Voltage Control switches MUST NOT BE SWITCHED during the welding process
2
5
8
11
14
17
20
2
1
3
4
TORCH
2
1
3
4
14
5
0
32
2
1
3
4
2
1
3
4
FEEDER OUTPUT
7
11
4
3
4
3
1
12
6
7
1
2
10
5
6
7
8
9
2
5
8
11
14
17
20
1 4
5
0
32 11
2
10
9