Tweco 44G User Manual

PAK 44G

PLASMA GOUGING SYSTEM

August 25, 1998

Operating Manual

Manual No. 0-2686

WARNING

WARNING

Read and understand this entire Operating Manual and your
employer’s safety practices before installing, operating, or
servicing the equipment.

While the information contained in this manual represents our
best judgement, Thermal Dynamics Corporation assumes no
liability for its use.

Pak 44G Plasma Gouging System
Operating Manual Number 0-2686

Published by:
Thermal Dynamics Corporation
Industrial Park No. 2
West Lebanon, New Hampshire, USA 03784
[phone]

Copyright 1998
Thermal Dynamics Corporation

All rights reserved.
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 liabil-

ity to any party for any loss or damage caused by any error or
omission in the Pak 44G Plasma Gouging System Operating
Manual, whether such error results from negligence, accident, or
any other cause.

August 25, 1998

TABLE OF CONTENTS

SECTION 1:

GENERAL INFORMATION .................................................................................................. 1

1.01 Notes, Cautions and Warnings .................................................................... 1

1.02 Important Safety Precautions ...................................................................... 1

1.03 Publications................................................................................................. 2

1.04 Note, Attention et Avertissement ................................................................. 3

1.05 Precautions De Securite Importantes.......................................................... 3

1.06 Documents De Reference........................................................................... 5

1.07 Declaration of Conformity............................................................................ 6

1.08 Statement of W arr anty................................................................................. 7

SECTION 2:

INTRODUCTION & DESCRIPTION..................................................................................... 9

2.01 Scope of Manual ......................................................................................... 9

2.02 General Description ..................................................................................... 9

2.03 Specifications & Design Features................................................................ 9

2.04 Pow er Supply Options and Accessories..................................................... 10

SECTION 3:

INST ALLATION PROCEDURES ........................................................................................ 11

3.01 Introduction ............................................................................................... 11

3.02 Site Selection ............................................................................................ 11

3.03 Unpacking ................................................................................................. 11

3.04 Removing Skid .......................................................................................... 11

3.05 Installation Of Optional Running Gear ....................................................... 12

3.06 Input Pow er Connections .......................................................................... 12

3.07 Primary V oltage Selection ......................................................................... 13

3.08 Primary Power Cable Connections............................................................ 13

3.09 W ork Cable And Ground Connections....................................................... 15

3.10 Plasma and Secondary Gas Connections................................................. 15

3.11 Connecting Torch Leads............................................................................ 16

3.12 Filling Pow er Supply Coolant..................................................................... 16

3.13 Initial Start-Up Of System.......................................................................... 16

SECTION 4:

OPERA TION ...................................................................................................................... 19

4.01 Introduction ............................................................................................... 19

4.02 Functional Overview.................................................................................. 19

4.03 Operating Control Descriptions ................................................................. 19

4.04 Getting Started .......................................................................................... 21

4.05 Gouging Operation.................................................................................... 21

SECTION 5:

CUSTOMER/OPERATOR SER VICE.................................................................................. 23

5.01 Introduction ............................................................................................... 23

5.02 General Po wer Supply Maintenance ......................................................... 23

5.03 Common Operating Faults ........................................................................ 24

5.04 Troubleshooting Guide............................................................................... 25

5.05 Gas Pressure Regulators.......................................................................... 28

TABLE OF CONTENTS (continued)

SECTION 6:

PARTS LISTS.....................................................................................................................29

6.01 Introduction ............................................................................................... 29

6.02 Ordering Information ................................................................................. 29

6.03 Pow er Supply Remote Aer a Spare P a rts Kit.............................................. 30

6.04 Pow er Supply Options and Accessories.................................................... 32

APPENDIX I: INPUT WIRING REQ UIREMENTS ...................................................................... 33

APPENDIX II: SEQUENCE OF OPERATION BLOCK DIAGRAM.............................................. 34

APPENDIX III: TIMING CHART ................................................................................................. 35

APPENDIX IV: SYSTEM BLOCK DIA GRAM ............................................................................. 36

APPENDIX V : RECOMMENDED ROUTINE MAINTENANCE SCHEDULE

FOR WATER COOLED PLASMA CUTTING SYSTEMS .................................................... 37

APPENDIX VI: SYSTEM SCHEMATIC ...................................................................................... 38

SECTION 1:

GENERAL INFORMATION

1.01 Notes, Cautions and Warnings

Throughout this manual, notes, cautions, and warnings
are used to highlight important information. These high­lights are categorized as follows:

NOTE

An operation, procedure, or backgr ound informa­tion which requires additional emphasis or is help­ful in efficient operation of the system.

CAUTION

A procedure which, if not properly followed, may
cause damage to the equipment.

W ARNING

A procedure which, if not properly followed, may
cause injury to the operator or others in the oper­ating area.

1.02 Important Safety Precautions

• Use an air-supplied respirator if ventilation is not
adequate to remove all fumes and gases.

• The kinds of fumes and gases from the plasma arc
depend on the kind of metal being used, coatings
on the metal, and the different processes. Y ou must
be very careful when cutting or welding any met­als which may contain one or more of the follow­ing:

Antimony Chromium Mercury
Arsenic Cobalt Nickel
Barium Copper Selenium
Beryllium Lead Silver
Cadmium Manganese Vanadium

• Always read the Material Safety Data Sheets (MSDS)
that should be supplied with the material you are
using. These MSDSs will give you the information
regarding the kind and amount of fumes and gases
that may be dangerous to your health.

• For information on how to test for fumes and gases
in your workplace, refer to item 1 in Subsection

1.03, Publications in this manual.

• Use special equipment, such as water or down draft
cutting tables, to capture fumes and gases.

• Do not use the plasma torch in an area where com­bustible or explosive gases or materials are located.

• Phosgene, a toxic gas, is generated from the vapors
of chlorinated solvents and cleansers. Remove all
sources of these vapors.

WARNING

OPERATION AND MAINTENANCE OF
PLASMA ARC EQUIPMENT CAN BE DAN­GEROUS AND HAZARDOUS TO YOUR
HEALTH.

To prevent possible injury, read, understand and
follow all warnings, safety precautions and in­structions before using the equipment. Call 1-603­298-5711 or your local distributor if you have any
questions.

GASES AND FUMES

Gases and fumes produced during the plasma cutting
process can be dangerous and hazardous to your health.

• Keep all fumes and gases from the breathing area.
Keep your head out of the welding fume plume.

ELECTRIC SHOCK

Electric Shock can injure or kill. The plasma arc process
uses and produces high voltage electrical energy. This
electric energy can cause severe or fatal shock to the op­erator or others in the workplace.

• Never touch any parts that are electrically “live” or
“hot.”

• W ear dry gloves and clothing. Insulate yourself from
the work piece or other parts of the welding cir­cuit.

• Repair or replace all worn or damaged parts.

• Extra care must be taken when the workplace is
moist or damp.

• Install and maintain equipment according to NEC
code, refer to item 9 in Subsection 1.03, Publica­tions.

• Disconnect power source before performing any ser­vice or repairs.

• Read and follow all the instructions in the Operat­ing Manual.

1 GENERAL INFORMATION

FIRE AND EXPLOSION

Fire and explosion can be caused by hot slag, sparks, or
the plasma arc.

• Be sure there is no combustible or flammable mate­rial in the workplace. Any material that cannot be
removed must be protected.

• Ventilate all flammable or explosive vapors from
the workplace.

• Do not cut or weld on containers that may have held
combustibles.

• Provide a fire watch when working in an area wher e
fire hazards may exist.

• Hydrogen gas may be formed and trapped under
aluminum workpieces when they are cut under­water or while using a water table. DO NOT cut
aluminum alloys underwater or on a water table
unless the hydrogen gas can be eliminated or dis­sipated. T rapped hydr ogen gas that is ignited will
cause an explosion.

NOISE

Noise can cause permanent hearing loss. Plasma arc pro­cesses can cause noise levels to exceed safe limits. You
must protect your ears from loud noise to prevent per­manent loss of hearing.

• T o pr otect your hearing fr om loud noise, wear pro­tective ear plugs and/or ear muffs. Protect others
in the workplace.

• Noise levels should be measured to be sure the deci­bels (sound) do not exceed safe levels.

• For information on how to test for noise, see item 1
in Subsection 1.03, Publications, in this manual.

PLASMA ARC RAYS

Plasma Arc Rays can injure your eyes and burn your skin.
The plasma arc process produces very bright ultra violet
and infra red light. These arc rays will damage your
eyes and burn your skin if you are not properly pr otected.

• To protect your eyes, always wear a welding hel­met or shield. Also always wear safety glasses with
side shields, goggles or other protective eye wear.

• Wear welding gloves and suitable clothing to pro­tect your skin from the arc rays and sparks.

• Keep helmet and safety glasses in good condition.
Replace lenses when cracked, chipped or dirty.

• Protect others in the work area from the arc rays.
Use protective booths, screens or shields.

• Use the shade of lens as recommended in Subsec­tion 1.03, item 4.

1.03 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, W ash­ington, 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, W ashington, D.C. 20402

4. ANSI Standard Z87.1, SAFE PRACTICES FOR OC­CUP ATION AND EDUCA TIONAL EYE AND F ACE
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 Standar ds 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

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

GENERAL INFORMATION 2

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 W elding Society Standard A WSF4.1, REC­OMMENDED SAFE PRACTICES FOR THE PREP A­RA TION 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. ANSI Standard Z88.2, PRACTICE FOR RESPIRA­TORY PROTECTION, obtainable from American
National Standards Institute, 1430 Broadway, New
York, NY 10018

1.04 Note, Attention et Avertissement

Dans ce manuel, les mots “note,” “attention,” et
“avertissement” sont utilisés pour mettre en relief des
informations à caractère important. Ces mises en relief
sont classifiées comme suit :

1.05 Precautions De Securite Importantes

AVERTISSEMENT

L’OPÉRATION ET LA MAINTENANCE DU
MATÉRIEL DE SOUDAGE À L’ARC AU JET
DE PLASMA PEUVENT PRÉSENTER DES
RISQUES ET DES DANGERS DE SANTÉ.

Il faut communiquer aux opérateurs et au person­nel TOUS les dangers possibles. Afin d’éviter les
blessures possibles, lisez, comprenez et suivez tous
les avertissements, toutes les précautions de
sécurité et toutes les consignes avant d’utiliser le
matériel. Composez le + 603-298-5711 ou votre
distributeur local si vous avez des questions.

FUMÉE et GAZ

La fumée et les gaz produits par le procédé de jet de
plasma peuvent présenter des risques et des dangers de
santé.

NOTE

Toute opération, procédure ou renseignement
général sur lequel il importe d’insister davantage
ou qui contribue à l’efficacité de fonctionnement
du système.

ATTENTION

Toute procédure pouvant r ésulter
l’endommagement du matériel en cas de non­respect de la procédur e en question.

A VERTISSEMENT

Toute procédure pouvant provoquer des blessures
de l’opérateur ou des autres personnes se trouvant
dans la zone de travail en cas de non-respect de la
procédure en question.

• Eloignez toute fumée et gaz de votre zone de respi­ration. Gardez votre tête hors de la plume de fumée
provenant du chalumeau.

• Utilisez un appareil respiratoire à alimentation en
air si l’aération fournie ne permet pas d’éliminer la
fumée et les gaz.

• Les sortes de gaz et de fumée provenant de l’arc de
plasma dépendent du genre de métal utilisé, des
revêtements se trouvant sur le métal et des différ ents
procédés. Vous devez prendre soin lorsque vous
coupez ou soudez tout métal pouvant contenir un
ou plusieurs des éléments suivants:

antimoine cadmium mercure
argent chrome nickel
arsenic cobalt plomb
baryum cuivre sélénium
béryllium manganèse vanadium

• Lisez toujours les fiches de données sur la sécurité
des matières (sigle américain “MSDS”); celles-ci
devraient être fournies avec le matériel que vous
utilisez. Les MSDS contiennent des renseignements
quant à la quantité et la nature de la fumée et des
gaz pouvant poser des dangers de santé.

• Pour des informations sur la manière de tester la
fumée et les gaz de votre lieu de travail, consultez
l’article 1 et les documents cités à la page 5.

3 GENERAL INFORMATION

• Utilisez un équipement spécial tel que des tables de
coupe à débit d’eau ou à courant descendant pour
capter la fumée et les gaz.

• N’utilisez pas le chalumeau au jet de plasma dans
une zone où se trouvent des matières ou des gaz
combustibles ou explosifs.

• Le phosgène, un gaz toxique, est généré par la fumée
provenant des solvants et des produits de nettoyage
chlorés. Eliminez toute source de telle fumée.

• Prévoyez une veille d’incendie lors de tout travail
dans une zone présentant des dangers d’incendie.

• Le gas hydrogène peut se former ou s’accumuler
sous les pièces de travail en aluminium lorsqu’elles
sont coupées sous l’eau ou sur une table d’eau. NE
P AS couper les alliages en aluminium sous l’eau ou
sur une table d’eau à moins que le gas hydrogène
peut s’échapper ou se dissiper. Le gas hydrogène
accumulé explosera si enflammé.

CHOC ELECTRIQUE

Les chocs électriques peuvent blesser ou même tuer. Le
procédé au jet de plasma requiert et produit de l’éner gie
électrique haute tension. Cette énergie électrique peut
produire des chocs graves, voire mortels, pour l’opérateur
et les autres personnes sur le lieu de travail.

• Ne touchez jamais une pièce “sous tension” ou
“vive”; portez des gants et des vêtements secs.
Isolez-vous de la pièce de travail ou des autres par­ties du circuit de soudage.

• Réparez ou remplacez toute pièce usée ou
endommagée.

• Prenez des soins particuliers lorsque la zone de tra­vail est humide ou moite.

• Montez et maintenez le matériel conformément au
Code électrique national des Etats-Unis. (Voir la
page 5, article 9.)

• Débranchez l’alimentation électrique avant tout tra­vail d’entretien ou de réparation.

• Lisez et respectez toutes les consignes du Manuel
de consignes.

INCENDIE ET EXPLOSION

RAYONS D’ARC DE PLASMA

Les rayons provenant de l’arc de plasma peuvent blesser
vos yeux et brûler votre peau. Le procédé à l’arc de plasma
produit une lumière infra-rouge et des rayons ultra-vio­lets très forts. Ces rayons d’arc nuiront à vos yeux et
brûleront votre peau si vous ne vous protégez pas
correctement.

• Pour protéger vos yeux, portez toujours un casque
ou un écran de soudeur. Portez toujours des lunettes
de sécurité munies de parois latérales ou des lu­nettes de protection ou une autre sorte de protec­tion oculaire.

• Portez des gants de soudeur et un vêtement
protecteur approprié pour protéger votre peau
contre les étincelles et les rayons de l’arc.

• Maintenez votre casque et vos lunettes de protec­tion en bon état. Remplacez toute lentille sale ou
comportant fissure ou rognure.

• Protégez les autres personnes se trouvant sur la zone
de travail contre les rayons de l’arc en fournissant
des cabines ou des écrans de protection.

• Respectez le teint de lentille recommandé dans le
article 4, page 5.

Les incendies et les explosions peuvent résulter des scories
chaudes, des étincelles ou de l’arc de plasma. Le procédé
à l’arc de plasma produit du métal, des étincelles, des
scories chaudes pouvant mettre le feu aux matières com­bustibles ou provoquer l’explosion de fumées
inflammables.

• Soyez certain qu’aucune matière combustible ou in­flammable ne se trouve sur le lieu de travail.
Protégez toute telle matière qu’il est impossible de
retirer de la zone de travail.

• Procurez une bonne aération de toutes les fumées
inflammables ou explosives.

• Ne coupez pas et ne soudez pas les conteneurs ayant
pu renfermer des matières combustibles.

GENERAL INFORMATION 4

BRUIT

Le bruit peut provoquer une perte permanente de l’ouïe.
Les procédés de soudage à l’arc de plasma peuvent
provoquer des niveaux sonores supérieurs aux limites
normalement acceptables. Vous dú4ez vous protéger les
oreilles contre les bruits forts afin d’éviter une perte
permanente de l’ouïe.

• Pour protéger votre ouïe contre les bruits forts, portez
des tampons protecteurs et/ou des protections
auriculaires. Protégez également les autres
personnes se trouvant sur le lieu de travail.

• Il faut mesurer les niveaux sonores afin d’assurer
que les décibels (le bruit) ne dépassent pas les
niveaux sûrs.

• Pour des renseignements sur la manière de tester le
bruit, consultez l’article 1, page 5.

1.06 Documents De Reference

Consultez les normes suivantes ou les révisions les plus
récentes ayant été faites à celles-ci pour de plus amples
renseignements :

1. OSHA, NORMES DE SÉCURITÉ DU TRAVAIL ET
DE PROTECTION DE LA SANTÉ, 29CFR 1910,
disponible auprès du Superintendent of Docu­ments, U.S. Government Printing Office, Washing­ton, D.C. 20402

2. Norme ANSI Z49.1, LA SÉCURITÉ DES
OPÉRATIONS DE COUPE ET DE SOUDAGE,
disponible auprès de la Société Américaine de
Soudage (American Welding Society), 550 N.W.
LeJeune Rd., Miami, FL 33126

3. NIOSH, LA SÉCURITÉ ET LA SANTÉ LORS DES
OPÉRATIONS DE COUPE ET DE SOUDAGE À
L ’ARC ET AU GAZ, disponible aupr ès du Superin­tendent of Documents, U.S. Government Printing
Office, Washington, D.C. 20402

4. Norme ANSI Z87.1, PRA TIQUES SURES POUR LA
PROTECTION DES YEUX ET DU VISAGE AU
TRAVAIL ET DANS LES ECOLES, disponible de
l’Institut Américain des Normes Nationales (Ameri­can National Standards Institute), 1430 Broadway,
New Y ork, NY 10018

5. Norme ANSI Z41.1, NORMES POUR LES
CHAUSSURES PROTECTRICES, disponible auprès
de l’American National Standards Institute, 1430
Broadway, New York, NY 10018

6. Norme ANSI Z49.2, PRÉVENTION DES
INCENDIES LORS DE L ’EMPLOI DE PROCÉDÉS
DE COUPE ET DE SOUDAGE, disponible auprès
de l’American National Standards Institute, 1430
Broadway, New York, NY 10018

7. Norme A6.0 de l’Association Américaine du
Soudage (A WS), LE SOUDAGE ET LA COUPE DE
CONTENEURS AYANT RENFERMÉ DES
PRODUITS COMBUSTIBLES, disponible auprès de
la American W elding Society, 550 N.W . LeJeune Rd.,
Miami, FL 33126

8. Norme 51 de l’Association Américaine pour la Pro­tection contre les Incendies (NFP A), LES SYSTEMES
À GAZ AVEC ALIMENTATION EN OXYGENE
POUR LE SOUDAGE, LA COUPE ET LES
PROCÉDÉS ASSOCIÉS, disponible auprès de la
National Fire Protection Association, Batterymarch
Park, Quincy, MA 02269

9. Norme 70 de la NFPA, CODE ELECTRIQUE NA­TIONAL, disponible auprès de la National Fire Pro­tection Association, Batterymarch Park, Quincy, MA
02269

10. Norme 51B de la NFPA, LES PROCÉDÉS DE
COUPE ET DE SOUDAGE, disponible auprès de
la National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269

11. Brochure GCA P-1, LA MANIPULATION SANS
RISQUE DES GAZ COMPRIMÉS EN CYLINDRES,
disponible auprès de l’Association des Gaz
Comprimés (Compressed Gas Association), 1235
Jefferson Davis Highway, Suite 501, Arlington, VA
22202

12. Norme CSA W1 17.2, CODE DE SÉCURITÉ POUR
LE SOUDAGE ET LA COUPE, disponible auprès
de l’Association des Normes Canadiennes, Stan­dards Sales, 178 Rexdale Boulevard, Rexdale,
Ontario, Canada, M9W 1R3

13. ivret NWSA, BIBLIOGRAPHIE SUR LA SÉCURITÉ
DU SOUDAGE, disponible auprès de l’Association
Nationale de Fournitures de Soudage (National
Welding Supply Association), 1900 Arch Street,
Philadelphia, PA 19103

14. Norme AWSF4.1 de l’Association Américaine de
Soudage, RECOMMANDATIONS DE PRA TIQUES
SURES POUR LA PRÉPARATION À LA COUPE
ET AU SOUDAGE DE CONTENEURS ET TUY AUX
AYANT RENFERMÉ DES PRODUITS
DANGEREUX , disponible auprès de la American
Welding Society, 550 N.W. LeJeune Rd., Miami, FL
33126

15. Norme ANSI Z88.2, PRATIQUES DE PROTEC­TION RESPIRATOIRE, disponible auprès de
l’American National Standards Institute, 1430
Broadway, New York, NY 10018

5 GENERAL INFORMATION

1.07 Declaration of Conformity

Manufacturer: Thermal Dynamics Corporation
Address: Industrial Park #2

W est Lebanon, New Hampshire 03784
USA

The equipment described in this manual conforms to all applicable aspects and regulations of the ‘Low Voltage Direc­tive’ (European Council Directive 73/23/EEC as amended by Council Directive 93/68/EEC) and to the National leg­islation for the enforcement of this Directive.

The equipment described in this manual conforms to all applicable aspects and regulations of the "EMC Directive"
(European Council Directive 89/336/EEC) and to the National legislation for the enforcement of this Directive.

Serial numbers are unique with each individual piece of equipment and details description, parts used to manufacture
a unit and date of manufacture.

National Standard and Technical Specifications

The product is designed and manufactured to a number of standards and technical requirements among them ar e:

* CSA (Canadian Standards Association) standard C22.2 number 60 for Arc welding equipment.

* UL (Underwriters Laboratory) rating 94VO flammability testing for all printed-circuit boards used.

* CENELEC EN50199 EMC Product Standard for Arc Welding Equipment.

* ISO/IEC 60974-1 (BS 638-PT10) (EN 60 974-1) applicable to welding equipment and associated accessories.

* Extensive product design verification is conducted at the manufacturing facility as part of the routine design and

manufacturing process. This is to ensure the product is safe, when used according to instr uctions in this manual and
related industry standards, and performs as specified. Rigorous testing is incorporated into the manufacturing
process to ensure the manufactured product meets or exceeds all design specifications.

Thermal Dynamics has been manufacturing products for more than 30 years, and will continue to achieve excellence in our
area of manufacture.

Manufacturers responsible representative: David Ashworth

Vice Pr esident & Managing Director
Thermadyne Europe
Chorley England.

GENERAL INFORMATION 6

1.08 Statement of Warranty

LIMITED WARRANTY: Thermal Dynamics® Corporation (hereinafter “Thermal”) warrants 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 Thermal products as stated below, Thermal shall, upon notification thereof and substantiation that the product has been
stored, installed, operated, and maintained in accordance with Thermal’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 Thermal’s sole option, of any components or parts of the product determined by Thermal to be
defective.

THIS W ARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
P AR TICULAR PURPOSE.

LIMITATION OF LIABILITY: Thermal shall not under any circumstances be liable for special or consequential damages, such

as, but not limited to, damage or loss of purchased or replacement goods, or claims of customers of distributor (hereinafter
“Purchaser”) for service interruption. The remedies of the Purchaser set forth herein are exclusive and the liability of Thermal
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 Thermal whether arising out of contract,
negligence, strict tort, or under any warranty , or otherwise, shall not, except as expr essly pr ovided herein, exceed the price of the
goods upon which such liability is based.

THIS W ARRANTY BECOMES INVALID IF REPLACEMENT PAR TS OR ACCESSORIES ARE USED WHICH MA Y IMP AIR
THE SAFETY OR PERFORMANCE OF ANY THERMAL PRODUCT.

THIS W ARRANTY IS INVALID IF THE PRODUCT IS SOLD BY NON-AUTHORIZED PERSONS.

The limited warranty periods for Thermal products shall be as follows (with the exception of ST AK PAK II and DRAG-GUN): A
maximum of three (3) years from date of sale to an authorized distributor and a maximum of two (2) years from date of sale by
such distributor to the Purchaser, and with the further limitations on such two (2) year period (see chart below).

The limited warranty period for STAK PAK II shall be as follows: A maximum of four (4) years from date of sale to an
authorized distributor and a maximum of three (3) years from date of sale by such distributor to the Purchaser, and with
the further limitations on such three (3) year period (see chart below).

The limited warranty period for DRAG-GUN shall be as follows: A maximum of two (2) years from date of sale to an
authorized distributor and a maximum of one (1) year from date of sale by such distributor to the Purchaser, and with the
further limitations on such two (2) year period (see chart below).

PARTS PARTS PARTS

PAK UNITS, POWER SUPPLIES STAK P AK II DRAG-GUN All OTHERS LABOR

Main Power Magnetics 3 Years 1 Year 2 Years 1 Year
Original Main Power Rectifier 3 Years 1 Year 2 Years 1 Year
Control PC Board 3 Years 1 Year 2 Years 1 Year
All Other Circuits And Components Including, 1 Year 1 Year 1 Year 1 Year

But Not Limited To, Starting Circuit,
Contactors, Relays, Solenoids, Pumps,
Power Switching Semi-Conductors

CONSOLES, CONTROL EQUIPMENT, HEAT 1 Year 1 Year 1 Year

EXCHANGES, AND ACCESSORY EQUIPMENT

TORCH AND LEADS

Maximizer 300 Torch N/A 1 Year 1 Year
All Other Torches 180 Days 180 Days 180 Days 180 Days

REPAIR/REPLACEMENT PARTS 90 Days 90 Days 90 Days None

Warranty repairs or replacement claims under this limited warranty must be submitted by an authorized Thermal Dynamics®
repair facility within thirty (30) days of the repair. No transportation costs of any kind will be paid under this warranty.
T ransportation char ges to send pr oducts to an authorized warranty repair facility shall be the r esponsibility of the customer. All
returned goods shall be at the customer’s risk and expense. This warranty supersedes all previous Thermal warranties.

Effective May 19, 1998

7 GENERAL INFORMATION

GENERAL INFORMATION 8