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Operating Manual

ARCMASTER

®

Version No: 

1

               Issue Date: 

March 22, 2006

               Manual No.:

 0-4865

Operating Features:

INVERTER ARC WELDER

300 MST

A

r

t # A-07367

Summary of Contents for ARCMASTER 300 MST

Page 1: ...Operating Manual ARCMASTER Version No 1 Issue Date March 22 2006 Manual No 0 4865 Operating Features INVERTER ARC WELDER 300 MST Art A 07367 ...

Page 2: ...utions 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 Worldwide Thermal Arc is a Global Brand of Arc Welding Products for Thermadyne Industries Inc We manufacture and supply to major welding industry sectors worldwide including Manufacturing Construction Mining Automotive Aerosp...

Page 3: ... 03784 603 298 5711 www thermalarc com Copyright 2006 by Thermadyne 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 liability to any party for any loss or damage caused by any error or omission in this Manual whether such error results from negligence accid...

Page 4: ...6 Specifications 17 2 07 Duty Cycle 18 3 0 OPERATOR CONTROLS 19 3 01 ARC MASTER 300 MST Controls 19 3 02 Weld Parameter Descriptions for ARC MASTER 300 MST 22 3 03 Weld Process Selection for the ARC MASTER 300 MST 23 3 04 Weld Parameter Descriptions 23 3 04 01 WELD V 23 3 04 02 INDUCTANCE 23 3 04 03 HOT START 24 3 04 04 WELD A 24 3 04 05 ARC CONTROL 24 3 05 Weld Parameters 25 3 06 Power Source Fea...

Page 5: ...36 8 0 ROUTINE MAINTENANCE 37 9 0 BASIC TROUBLESHOOTING 38 9 01Solving MIG Problems Beyond the Welding Terminals 38 9 01 01 Porosity 38 9 01 02 Inconsistent Wire Feed 39 9 02 MIG Welding Problems 40 9 03 TIG Welding Problems 41 9 04 Stick Welding Problems 43 9 05 Power Source Problems 45 10 0 VOLTAGE REDUCTION DEVICE VRD 46 10 01 VRD Specification 46 10 02 VRD Maintenance 46 10 03 Switching VRD ON...

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Page 7: ...cally 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...

Page 8: ...and burns Accidental contact of electrode or welding wire to metal objects can cause sparks overheating or fire 1 Protect yourself and others from flying sparks and hot metal 2 Do not weld where flying sparks can strike flammable material 3 Remove all flammables within 35 ft 10 7 m of the welding arc If this is not possible tightly cover them with approved covers 4 Be alert that welding sparks and...

Page 9: ... 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 WARNING 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 fueling If possible c...

Page 10: ...ies to minimize or avoid potential risks To reduce magnetic fields in the workplace use the following procedures 1 Keep cables close together by twisting or taping them 2 Arrange cables to one side and away from the operator 3 Do not coil or drape cable around the body 4 Keep welding power source and cables as far away from body as practical ABOUT PACEMAKERS The above procedures are among those al...

Page 11: ... En soudage automatique ou semi automatique avec fil ce dernier le rouleau ou la bobine de fil le logement des galets d entrainement et toutes les pièces métalliques en contact avec le fil de soudage sont sous tension Un équipement inadéquatement installé ou inadéquatement mis à la terre est dangereux 1 Ne touchez pas à des pièces sous tension 2 Portez des gants et des vêtements isolants secs et n...

Page 12: ...bien ventilé sinon portez un respirateur à adduction d air Les gaz protecteurs de soudage peuvent déplacer l oxygène de l air et ainsi causer des malaises ou la mort Assurez vous que l air est propre à la respi ration 6 Ne soudez pas à proximité d opérations de dégraissage de nettoyage ou de pulvérisation La chaleur et les rayons de l arc peuvent réagir avec des vapeurs et former des gaz hautement...

Page 13: ...e fil au tube con tact lorsqu inutilisé après le soudage 11 Portez des vêtements protecteurs non huileux tels des gants en cuir une chemise épaisse un pantalon revers des bottines de sécurité et un casque AVERTISSEMENT LES ETINCELLES ET LES PROJECTIONS BRULANTES PEUVENT CAUSER DES BLESSURES Le piquage et le meulage produisent des particules métalliques volantes En refroidissant la soudure peut pro...

Page 14: ...ET LES YEUX Les accumulateurs contiennent de l électrolyte acide et dégagent des vapeurs explosives 1 Portez toujours un écran facial en travaillant sur un accumu lateur 2 Arrêtez le moteur avant de connecter ou de déconnecter des câbles d accumulateur 3 N utilisez que des outils anti étincelles pour travailler sur un accumulateur 4 N utilisez pas une source de courant de soudage pour charger un a...

Page 15: ...Panel Remote Percent Remote Function DC Direct Current Arc Control SMAW AC Alternating Current Gas Post Flow Standard Function Gas Pre Flow Slope Function VRD Voltage Reduction Device Circuit Slope W Repeat Function Negative Spot Function Positive Impulse Starting High Frequency GTAW Gas Input Touch Start Lift Start TIG circuit GTAW Gas Output ...

Page 16: ... Start for Shielded Metal Arc Welding SMAW Inductance Control for Gas Metal Arc Welding GMAW processes The power source is totally enclosed in an impact resistant flame resistant and non conductive plastic case 300A 5A V OCV 18V 320A 160A STICK Process 300A 25A A V OCV 10V 5A A V OCV 10V 320A 29V 300A LIFT TIG Process MIG Process Figure 1 Model 300 MST Volt Ampere Curve Note 1 Volt Ampere curves s...

Page 17: ...el Circuit Board Sequence Control Fan Control Circuit Fan Input Power Primary Circuit Sensor Down Transformers AC115V AC24V T3 Over Current Protect 19PIN Receptacle CON2 Thermal Detector 14PIN 19PIN Select Switch S3 Figure 2 300 MST Model Functional Block Diagram 2 03 Transporting Methods This unit is equipped with a handle for carrying purposes WARNING 1 ELECTRIC SHOCK can kill DO NOT TOUCH live ...

Page 18: ...ably reduces the skin resistance of the human body and the insulation properties of accessories Environments with hazardous environments do not include places where electrically conductive parts in the near vicinity of the operator which can cause increased hazard have been insulated 2 04 02 Location Be sure to locate the welder according to the following guidelines In areas free from moisture and...

Page 19: ... inspection required The line disconnect switch provides a safe and convenient means to completely remove all electrical power from the welding power supply whenever necessary to inspect or service the unit Note 2 This unit is equipped with a three conductor with earth power cable that is connected at the welding power source end for single or three phase electrical input power Do not connect an i...

Page 20: ...5 Amps 460 VAC 50 Amps Table 1 Electrical Input Connections Note 4 Fuse size is based on not more than 200 percent of the rated input amperage of the welding power source Based on Article 630 National Electrical Code Figure 3 Electrical Input Connections ...

Page 21: ...could occur if 575VAC or higher is applied The following 208 230 460V Primary Current recommendations are required to obtain the maximum welding current and duty cycle from this welding equipment Current Duty Cycle Model Primary Supply Lead Size Minimum Primary Current Circuit Size Vin Amps MIG TIG STICK 208 41 230 37 460 19 300A 40 208 31 230 28 460 14 300A 40 208 45 230 41 8 4 AWG minimum Factor...

Page 22: ...ine can occur if the case is metal and is not properly grounded It can occur through apertures such as open access panels The shielding of the high frequency unit in the Power Source will prevent direct radiation if the equipment is properly grounded Transmission via the Supply Lead Without adequate shielding and filtering high frequency energy may be fed to the wiring within the installation main...

Page 23: ...olts Duty Cycle KVA KW Three phase 208 230 460V 300A 32V 40 16 0kVA 12 0kW Single phase 208 230V 250A 30V 40 15 7kVA 9 4kW 0 5 Output No Load KVA KW 0 13 Input Volts Single Phase 208V 230V Amperage Draw Rated Load 61 55 No Load 2 4 1 8 Input Volts Three Phase 208V 230V 460V 45 41 21 1 4 1 1 0 7 Thermal Arc continuously strives to produce the best product possible and therefore reserves the right t...

Page 24: ... the thermal overload protection circuit to become energized and shut down the output until the unit has cooled to normal operating temperature CAUTION 1 Continually exceeding the duty cycle ratings can cause damage to the welding power source and will void the manufactures warranty NOTE 6 Due to variations that can occur in manufactured products claimed performance voltages ratings all capacities...

Page 25: ...A B C D E F G H I J K L M N E Front view of 14 Socket Receptacle 5k ohms Figure 5 8 Socket Receptacle Socket Pin Function A 24VAC auxiliary high side B Input to energize solid state contactor Contact closure between pin A and pin B C 5k ohm maximum connection to 5k ohm remote control potentiometer D Zero ohm minimum connection to 5k ohm remote control potentiometer E Wiper arm connection to 5k ohm...

Page 26: ...e 5 Remote Control Socket The 19 pin Remote Control Socket is used to connect remote current control devices to the welding Power Source To make connections align keyway insert plug and rotate threaded collar fully clockwise Socket Pin Function A Contactor circuit 15 Volts B Contactor circuit in closure between pin A and Pin B will energize output C Scaled output voltage signal Vfb 10 Arc Volts Vo...

Page 27: ...elding power source from turning on and a warning indication will be displayed WARNING 7 Do not alter the position of the Voltage Input Select Switch when the ON OFF Switch is in the ON position and the unit is powered up 9 14 19 Pin Remote Control Select Switch User selectable switch Position this switch for the remote control device socket to be utilized The unselected Remote Control Socket is d...

Page 28: ...ectrode sticking and arc stability HOT START This parameter operates in STICK weld mode and is used to improve the start characteristics for stick electrodes e g low hydrogen electrodes It sets the peak start current on top of the WELD current DC A Weld Current Amperage when lit parameter knob sets the STICK and TIG WELD current DC V Weld Voltage Volt when lit parameter knob sets the MIG voltage C...

Page 29: ...e HOT START Start current in amps is added to the WELD A WELD A WELD A current for STICK or LIFT TIG ARC CONTROL Adjusts percentage increase in welding current and is proportional to arc length arc voltage Table 4 Weld Process Selection verses Weld Mode 3 04 Weld Parameter Descriptions 3 04 01 WELD V This parameter sets the MIG weld arc voltage in MIG mode 3 04 02 INDUCTANCE This parameter sets th...

Page 30: ...0 32A Normal arc Improved fusion characteristics Normal penetration Maximum 100 160A Hard arc Deep penetration Table 5 Weld Parameter Descriptions In general having the ARC CONTROL set at 100 maximum allows greater penetration control to be achieved With the ARC CONTROL set at 0 minimum the Power Source has a constant current characteristic In other words varying the arc length does not significan...

Page 31: ...e during the flick phase without decreasing the amount of weld current available during the dig phase thus maximizing penetration 3 05 Weld Parameters Weld Mode Weld Parameter Parameter Range Factory Setting Incremental Unit STICK MIG LIFT TIG WELD V MIG 10 0 to 32 0V DC 17 0V 0 1V INDUCTANCE 0 to 100 10 1 HOT START 0 to 70A 20A 1A WELD A TIG or STICK 5 to 300A DC 80A 1A ARC CONTROL 0 to 100 10 1 ...

Page 32: ...an be adjusted at any time even while welding Pushing the knob in sets the selected parameter then displays the next parameter Self Diagnosis Using Error Codes An error code is displayed on the Digital Meter when a problem occurs with Mains supply voltage or internal component problems Save Load Function A total number of 5 programs can be saved into the 300 MST memory SAVE the Current Weld Parame...

Page 33: ...lied are signaled to the operator by a warning sound and error message on the screen 4 Save Load Buttons By using the Save Load buttons the operator can easily save up to 5 welding parameter programs 5 Control Knob Allows the operator to adjust the output amperage voltage within the entire range of the power source also used to set each parameter value 6 Process Button This button selects between ...

Page 34: ...onnect TIG torch to negative terminal Switch machine on Set weld current Connect remote control device if required Use the Scroll Buttons to move to the parameter to be set The LED will show which function is being adjusted on the weld sequence graph Use the control knob to adjust each parameter Commence welding 4 03 MIG Welding Connect work lead to negative terminal Connect electrode lead to posi...

Page 35: ...sired memory location i e 1 to 5 press the parameter button and the machine will beep to confirm the weld parameters from the control panel are saved LOAD retrieve a Program to Control Panel Press and HOLD the LOAD button Beep will sound and digital display will show a number 1 Select a memory location by rotating the control knob 1 to 5 is displayed on the meter After selecting the desired memory...

Page 36: ...200 5 32 4 0mm 190 280 190 280 3 16 4 8mm 250 340 250 340 Table 7 Current Ranges for Various Tungsten Electrode Sizes 5 03 Tungsten Electrode Types Electrode Type Ground Finish Welding Application Features Color Code Thoriated 2 DC welding of mild steel stainless steel and copper Excellent arc starting Long life High current carrying capacity Red Zirconated 1 High quality AC welding of aluminium m...

Page 37: ...ld is a registered trademark of BOC Gases Limited Aluminium alloys Welding Argon Argoshield 80T 81T Carbon Steel Welding Argon Stainless Steel Welding Argon Argoshield 71T 80T 81T Nickel Alloy Welding Argon Argoshield 71T Copper Welding Argon Argoshield 81T Titanium Welding Argon Argoshield 80T 81T Table 10 Shielding Gas Selection 5 06 TIG Welding Parameters for Low Carbon Low Alloy Steel Pipe Ele...

Page 38: ... 1 6mm 5 7 Lap Fillet 45 55 30 45 Butt Corner 0 045 1 2mm 50 60 35 50 0 040 1 0mm 1 16 1 6mm 5 7 Lap Fillet 60 70 40 60 Butt Corner 1 16 1 6mm 70 90 50 70 1 16 1 6mm 1 16 1 6mm 7 Lap Fillet 80 100 65 85 Butt Corner 1 8 3 2mm 90 115 90 110 1 16 1 6mm 3 32 2 4mm 7 Lap Fillet 115 135 100 125 Butt Corner 3 16 4 8mm 140 165 125 150 3 32 2 4mm 1 8 3 2mm 10 Lap Fillet 160 175 135 160 Butt Corner 6 4mm 17...

Page 39: ...when welding white heart malleable due to the porosity caused by gas held in this type of iron Copper and alloys The most important factor is the high rate of heat conductivity of copper making preheating of heavy sections necessary to give proper fusion of weld and base metal Types of Electrodes Arc Welding electrodes are classified into a number of groups depending on their applications There ar...

Page 40: ...water trough float arms etc Also for joining copper to steel and for bronze overlays on steel shafts High Alloy Steels Dissimilar Metals Crack Resistance All Hard To Weld Jobs 312 16 It will weld most problematical jobs such as springs shafts broken joins mild steel to stainless and alloy steels Not suitable for Aluminium Table 13 Types of Electrodes ...

Page 41: ...peed to achieve the same current level A satisfactory weld cannot be obtained if the wirespeed and voltage switch settings are not adjusted to suit the electrode wire diameter and dimensions of the workpiece If the Wirespeed is too high for the welding voltage stubbing will occur as the wire dips into the molten pool and does not melt Welding in these conditions normally produces a poor weld due t...

Page 42: ...d as amps per mm2 An example is tabled below Electrode Wire Size Current Amps Current Density Amps mm2 Deposition Rate lb hour 0 035 0 9mm 200 380 6 3 0 034 1 2mm 200 177 6 0 7 06 Deposition Rate Comparison This demonstrates that where the upper limit of current is limited by machine capacity and duty cycle higher deposition rates and therefore greater productivity will be achieved by using smalle...

Page 43: ...ning electrical apparatus Turn Power Switch to OFF before proceeding Internal cleaning of the unit should be done every 6 months by an authorized Thermal Arc Service Center to remove any accumulated dirt and dust This may need to be done more frequently under exceptionally dirty conditions CAUTION 3 Do not blow air into the power supply during cleaning Blowing air into the unit can cause metal par...

Page 44: ...lidification of the molten metal Contaminants range from no gas around the welding arc to dirt on the work piece surface Porosity can be reduced by checking the following points 1 Gas cylinder contents and flow meter Ensure that the gas cylinder is not empty and the flow meter is correctly adjusted to 25 cubic feet per hour 2 Gas leaks Check for gas leaks between the regulator cylinder connection ...

Page 45: ...the feed roller if excessive pressure is applied to the pressure roller adjuster Wire debris can also be produced by the wire passing through an incorrect feed roller groove shape or size Wire debris is fed into the liner where it accumulates thus reducing wire feedability 6 Incorrect or worn contact tip The contact tip transfers the weld current to the electrode wire If the hole in the contact ti...

Page 46: ... and the wirespeed control B Wire is wandering B Replace contact tip C Incorrect shielding gas C Check shielding gas D Insufficient or excessive heat input D Adjust the wirespeed control or the voltage selection switches 6 Weld cracking A Weld beads too small A Decrease travel speed B Weld penetration narrow and deep B Reduce current and voltage and increase MIG torch travel speed or select a lowe...

Page 47: ... in fillet joint Wrong placement of filler rod Re position filler rod 6 Electrode melts when arc is struck Electrode is connected to the terminal Connect the electrode to the terminal 7 Dirty weld pool A Electrode contaminated through contact with work piece or filler rod material A Clean the electrode by grinding off the contaminates B Gas contaminated with air B Check gas lines for cuts and loos...

Page 48: ...the work torch leads to the right welding terminals B Torch lead is disconnected B Connect it to the terminal C Gas flow incorrectly set cylinder empty or the torch valve is OFF C Select the right flow rate change cylinders or turn torch valve ON 12 Arc start is not smooth A Tungsten electrode is too large for the welding current A Select the right size electrode Refer to Basic TIG Welding Guide B...

Page 49: ...eft by failure of the weld metal to fill the root of the weld A B C Welding current is too low Electrode too large for joint Insufficient gap A B C Increase welding current Use smaller diameter electrode Allow wider gap D Incorrect sequence D Use correct build up sequence Figure 9 Example of Insufficient Gap or Incorrect Sequence 4 Portions of the weld run do not fuse to the surface of the metal o...

Page 50: ...egular deposits allow slag to be trapped C If very bad chip or grind out irregularities D Lack of penetration with slag trapped beneath weld bead D Use smaller electrode with sufficient current to give adequate penetration Use suitable tools to remove all slag from corners E Rust or mill scale is preventing full fusion E Clean joint before welding F Wrong electrode for position in which welding is...

Page 51: ...B Replace gas hose Disconnect gas hose from the rear of Power Source then raise gas pressure and blow out impurities C Gas regulator turned OFF C Turn gas regulator ON D Torch trigger switch lead is disconnected or switch cable is faulty D Reconnect lead or repair faulty switch cable 5 Gas flow won t shut OFF A Weld Mode STD SLOPE REPEAT or SPOT was changed before POST FLOW gas time had finished A...

Page 52: ... once every 3 months b For fixed equipment at least once every 12 months The owners of the equipment shall keep a suitable record of the periodic tests Note 9 A transportable power source is any equipment that is not permanently connected and fixed in the position in which it is operated In addition to the above tests and specifically in relation to the VRD fitted to this machine the following per...

Page 53: ... mounting hole Remove the control s clear plastic cover Figure 12 VRD ON OFF Step A b Remove four mounting screws from the control panel see Figure 13 c Access the VRD control by gently prying back the front panel controls to reveal the VRD ON OFF potentiometer see Figure 13 CAUTION 4 Do not pull back the front panel with excessive force as this will unplug control PCB Plugging the control PCB bac...

Page 54: ...eck that it operates as per VRD Specifications on page 46 To turn VRD OFF rotate the trim potentiometer VR1 on the display PCB fully counter clockwise WARNING 10 The VRD ON OFF trim potentiometer MUST ONLY be positioned fully clockwise OR fully counter clockwise as the VRD function will be unknown for every other position Figure 14 VRD ON OFF Step D ...

Page 55: ...ing arc is too long Mains supply voltage is more than 10 below nominal voltage A B Reduce length of welding arc Have an Accredited Thermal Arc Service Agent or a qualified electrician check for low Mains voltage Weld current ceases Buzzer sounds constantly Switch machine OFF then ON to reset E03 error 4 E11 error code displayed Over Primary supply input voltage at primary capacitors is exceeded fo...

Page 56: ...is available Buzzer sounds constantly Switch machine OFF then ON to reset E83 error 10 E93 error code displayed Memory chip EEPROM on control PCB can not read write weld parameters Memory chip EEPROM error Have an accredited Thermal Arc Service Agent check the control PCB Weld current ceases Buzzer sounds constantly Switch machine OFF 11 E94 error code displayed Temperature sensor TH1 for IGBTs or...

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Page 58: ...G E Q18 C G E PCB10 Q19 C G E Q20 C G E Q21 C G E Q22 C G E Q23 C G E Q24 C G E PCB11 CN2 1 2 3 4 CN1 1 2 CN2 1 2 3 4 G3 E3 G4 E4 G8 E8 G7 E7 3 CN1 1 2 3 G1 E1 G2 E2 G7 E7 G8 E8 G3 E3 Line3 PCB5 Conect Circuit Bord WK 5696 CN30 CN31 CN31 CN30 CN32 CN32 PCB7 Filter Circuit Bord WK 5689 CN1 1 2 3 CN7 1 2 3 CN5 1 2 3 4 5 115V 24V 0V 115V 24V 0V 0V 230V 460V T1 1 2 CN20 3 CT4 CT3 CN3 1 2 3 4 5 1 2 3 6...

Page 59: ...PCB18 Filter Circuit Bord WK 5499 CN1 1 2 3 4 5 AC4 AC2 AC1 AC4 AC2 SH DET SH DET SH DET SH DET TH2 TH1 SIDE CHASSIS 2 FRONT PANEL EB Ground SIDE CHASSIS 3 TB8 PCB14 TRANS Bord WK 5594 D7 D2 D4 CN3 1 2 3 Ground CT2 CT1 L1 TB16 TB22 CT4 CT3 TB17 CT3 TB31 TB32 TB30 A J K T P R S H D M G F E A J B K I C L N H D M G F E L N U C V CON2 CON1 UB2 UB4 UB2 UB1 R2 UB4 UB3 R3 1 2 CN17 3 4 1 2 CN21 3 4 1 2 CN...

Page 60: ...rent control with 25ft cable and 14 pin male plug Extension Cable 10 2030 3ft with 14 pin male plug and 14 pin female cable receptacle 10 2031 15ft with 14 pin male plug and 14 pin female cable receptacle 10 2032 25ft with 14 pin male plug and 14 pin female cable receptacle 10 2033 50ft with 14 pin male plug and 14 pin female cable receptacle 10 2034 75ft with 14 pin male plug and 14 pin female ca...

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Page 62: ...ng out of contract tort including negligence or strict liability or under any warranty or otherwise shall not exceed the price of the goods upon which such liability is based No employee agent or representative of Thermal Arc is authorized to change this warranty in any way or grant any other warranty and Thermal Arc shall not be bound by any such attempt Correction of non conformities in the mann...

Page 63: ...ower switch semi conductors 3 years 3 years All other original circuits and components including but not limited to relays switches contactors solenoids fans electric motors 1 year 1 year PLASMA WELDING EQUIPMENT WARRANTY PERIOD LABOR Ultima 150 Original Main Power Magnetics 5 years 3 years Original Main Power Rectifiers Control P C Boards power switch semi conductors 3 years 3 years Welding Conso...

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Page 65: ...strict Shanghai PR 200052 Telephone 86 21 69171135 Fax 86 21 69171139 Thermadyne Asia Sdn Bhd Lot 151 Jalan Industri 3 5A Rawang Integrated Industrial Park Jln Batu Arang 48000 Rawang Selangor Darul Ehsan West Malaysia Telephone 603 6092 2988 Fax 603 6092 1085 Cigweld Australia 71 Gower Street Preston Victoria Australia 3072 Telephone 61 3 9474 7400 Fax 61 3 9474 7510 Thermadyne Italy OCIM S r L V...

Page 66: ...World Headquarters Thermadyne Holdings Corporation Suite 300 16052 Swingley Ridge Road St Louis MO 63017 Telephone 636 728 3000 Fascimile 636 728 3010 Email sales thermalarc com www thermalarc com ...

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