OM-2233 203 409Q 2007−04 Processes TIG (GTAW) Welding Stick (SMAW) Welding Description 115/230/400/460 Volt Models W/Autoline Arc Welding Power Source Maxstar 200 STR And Non-CE Models Visit our website at www.MillerWelds.
From Miller to You Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy.
TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3.
TABLE OF CONTENTS SECTION 10 − STICK WELDING (SMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1. Stick Welding Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2. Electrode and Amperage Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3. Striking an Arc − Scratch Start Technique . . . . . . . .
Declaration of Conformity for European Community (CE) Products NOTE This information is provided for units with CE certification (see rating label on unit). Manufacturer: European Contact: Miller Electric Mg. Co. 1635 W. Spencer St. Appleton, WI 54914 USA Phone: (920) 734-9821 Mr. Danilo Fedolfi, Managing Director ITW Welding Products Italy S.r.l.
Notes
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _3/05 Warning: Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Marks a special safety message. Means “Note”; not safety related. This group of symbols means Warning! Watch Out! possible ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.
ARC RAYS can burn eyes and skin. Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. Wear an approved welding helmet fitted with a proper shade of filter lenses to protect your face and eyes when welding or watching (see ANSI Z49.1 and Z87.1 listed in Safety Standards). Wear approved safety glasses with side shields under your helmet.
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can cause injury. Do not install or place unit on, over, or near combustible surfaces. Do not install unit near flammables. Do not overload building wiring − be sure power supply system is properly sized, rated, and protected to handle this unit. Keep away from moving parts such as fans. Keep all doors, panels, covers, and guards closed and securely in place.
1-5. Principal Safety Standards Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, from Global Engineering Documents (phone: 1-877-413-5184, website: www.global.ihs.com). Boulevard, Rexdale, Ontario, Canada M9W 1R3 (phone: 800−463−6727 or in Toronto 416−747−4044, website: www.csa−international.org). Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping, American Welding Society Standard AWS F4.
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION fre_som _3/05 Avertissement : se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. Symboles utilisés Symbole graphique d’avertissement ! Attention ! Cette procédure comporte des risques possibles ! Les dangers éventuels sont représentés par les symboles graphiques joints. Indique un message de sécurité particulier Signifie NOTE ; n’est pas relatif à la sécurité. 2-2.
LES RAYONS D’ARC peuvent entraîner des brûlures aux yeux et à la peau. Le rayonnement de l’arc du procédé de soudage génère des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provoquer des brûlures dans les yeux et sur la peau. Des étincelles sont projetées pendant le soudage. Porter un casque de soudage approuvé muni de verres filtrants approprié pour protéger visage et yeux pendant le soudage (voir ANSI Z49.1 et Z87.1 énuméré dans les normes de sécurité).
2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU D’EXPLOSION. DES ORGANES MOBILES peuvent provoquer des blessures. Ne pas placer l’appareil sur, au-dessus ou à proximité de surfaces inflammables. Ne pas installer l’appareil à proximité de produits inflammables. Ne pas surcharger l’installation électrique − s’assurer que l’alimentation est correctement dimensionnée et protégée avant de mettre l’appareil en service.
2-5. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com). Boulevard, Rexdale, Ontario, Canada M9W 1R3 (téléphone : 800-463-6727 ou à Toronto 416-747-4044, site Internet : www.csa-international.org). Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping, American Welding Society Standard AWS F4.
SECTION 3 − DEFINITIONS (CE Models) 3-1. Warning Label Definitions Warning! Watch Out! There are possible hazards as shown by the symbols. 1 Electric shock from welding electrode or wiring can kill. 2 2.1 2.2 1.1 Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves. 2.3 3 1.2 Protect yourself from electric shock by insulating yourself from work and ground. 3.1 1.3 Disconnect input plug or power before working on machine. 1 1.1 2 2.1 3 3.1 3.2 1.
Warning! Watch Out! There are possible hazards as shown by the symbols. 1 2 1 2 4 3 5 V V > 60 s V 3 4 5 6 S-185 836 7 6 9 8 7 8 9 1 1 2 3 ∠ = <60 ° ∠ 4 5 Electric shock from wiring can kill. Disconnect input plug or power before working on machine. Hazardous voltage remains on input capacitors after power is turned off. Do not touch fully charged capacitors.
3-3. Manufacturer’s Rating Label f1 1A 10V S U Section 4-4 for location. o 80V 200A 18V U o 80V U 40% 60% 100% 70% 100% I2 200 175 150 150 125 18 17 16 16 15 X 40% 60% 100% 50% 80% I2 175 150 125 125 100 27 26 25 25 24 U 2 200A 28V U 2 U I 1 max Use rating label to de- =115V 1 X 1A 20V S See EN 60974−1 f2 termine input power requirements.
SECTION 4 − INSTALLATION 4-1.
4-2. Volt-Ampere Curves Volt-ampere curves show minimum and maximum voltage and amperage output capabilities of welding power source. Curves of other settings fall between curves shown. 1 1 5 V A C In p u t 140 120 Stick Max Vo lts 100 TIG Max 80 60 40 Stick/TIG Min 20 DIG Max 0 0 50 100 150 200 250 200 250 Amp eres O th e r In p u t V o lt a g e s 140 120 Stick Max Volts 100 TIG Max 80 60 40 Stick/TIG Min 20 DIG .
4-3. Duty Cycle And Overheating Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating. If unit overheats, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding. Exceeding duty cycle can damage unit and void warranty.
4-4. Selecting A Location 1 2 3 Dimensions And Weight 34.7 lb (15.7 kg) - without power cord 37.3 lb (16.9 kg) - with power cord Identification Plate Rating Label Line Disconnect Device Locate unit near correct input power supply. Special installation may be required where gasoline or volatile liquids are present − see NEC Article 511 or CEC Section 20.
4-5. Weld Output Terminals And Selecting Cable Sizes* Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit Not Exceeding 100 ft (30 m) Or Less 150 ft (45 m) 200 ft (60 m) 250 ft (70 m) 300 ft (90 m) 350 ft 400 ft (105 m) (120 m) Weld Output Terminals Turn off power before connecting to weld output terminals.
4-7. TIG Lift-Arc DCEN (Direct Current Electrode Negative) Connections Turn off power before making connections. 1 5 4 Positive (+) Weld Output Terminal Connect work lead to positive weld output terminal. 6 2 3 Connect TIG torch to negative weld output terminal. 3 4 Negative (−) Weld Output Terminal Gas Cylinder Cylinder Valve Open valve slightly so gas flow blows dirt from valve. Close valve. 5 6 Regulator/Flowmeter Flow Adjust Typical flow rate is 15 cubic feet per hour (7.
4-8. Stick DCEP (Direct Current Electrode Positive) Connections Turn off power before making connections. 1 Negative (−) Weld Output Terminal Connect work lead to negative weld output terminal. 2 Positive (+) Weld Output Terminal Connect electrode holder to positive weld output terminal. 2 1 Ref. 802 888-A 4-9. Electrical Service Guide NOTE Actual input voltage cannot exceed - 10% of minimum or +10% of maximum input voltages indicated in table.
4-10. Connecting Input Power A. Connecting Three-Phase Input Power Installation must meet all National and Local Codes − have only qualified persons make this installation. 3 = GND/PE Earth Ground 4 Disconnect and lockout/tagout input power before connecting input conductors from unit. Always connect green or green/ yellow conductor to supply grounding terminal first, and never to a line terminal.
B. Connecting Single-Phase Input Power Installation must meet all National and Local Codes − have only qualified persons make this installation. Disconnect and lockout/tagout input power before connecting input conductors from unit. Always connect green or green/ yellow conductor to supply grounding terminal first, and never to a line terminal. 1 8 The Auto-Line circuitry in this unit au- =GND/PE Earth Ground tomatically adapts the power source to the primary voltage being applied.
SECTION 5 − OPERATION 5-1. Controls A. Non CE Units 5 2 4 3 1 6 NOTE: Green on nameplate indicates a TIG function, Gray indicates a Stick function. 3 1 See Section 5-6. See Section 6-3. 4 6 Process Controls See Section 5-2. 2 Amperage Control See Section 5-5. DIG Control High Temperature Shutdown Light See Section 4-3. 5 Power On/Troubleshooting Help Aids Light Power Switch Use switch to turn unit and indicator light On/Off.
B. For CE Units 5 4 2 3 1 6 NOTE: Green on nameplate indicates a TIG function, Gray indicates a Stick function. 3 1 See Section 5-6. See Section 6-3. 4 6 Process Controls See Section 5-2. 2 Amperage Control See Section 5-5. DIG Control High Temperature Shutdown Light See Section 4-3. 5 Power On/Troubleshooting Help Aids Light Power Switch Use switch to turn unit and indicator light On/Off.
5-2. Process Control CE Model 1 1 Process Control Rotate knob up to select the Stick process. Rotate knob down to select the TIG Lift Arc process. Stick (SMAW) - This is a DCEP (direct current electrode positive) process. Make connections according to Section 4-8. 1 TIG Lift-Arc - This is a DCEN (direct current electrode negative) process in which the electrode must come in contact with the work piece to initiate an arc (see Section 5-3). Make connections according to Section 4-7. 5-3.
5-4. Stick Start Procedure − Scratch Start Technique With Stick selected, start arc as follows: 1 2 3 Electrode Workpiece Arc Drag electrode across workpiece like striking a match; lift electrode slightly after touching work. If arc goes out electrode was lifted to high. If electrode sticks to workpiece, use a quick twist to free it. 1 For models with stock number 907 220, normal open-circuit voltage (80 volts) is present before electrode touches workpiece.
SECTION 6 − MAINTENANCE AND TROUBLESHOOTING 6-1. Routine Maintenance Disconnect power before maintaining. Maintain more often during severe conditions. 3 Months Replace unreadable labels. Clean and tighten weld terminals. Replace Damaged Gas Hose 3 Months Repair Or Replace Cracked Cables And Cords 6 Months Do not remove case when blowing out inside of unit (see Section 6-2) . Blow out inside. During heavy service clean monthly. 6-2.
6-3. Troubleshooting Help Aids 1 2 All directions are in reference to the front of the unit. All circuitry referred to is located inside the unit. 1 Output LED 2 High Temperature LED The Output LED turns on when power is turned on. The LED is also used to indicate several machine malfunctions. When one of the malfunctions listed below occurs, the LED will first turn off for 1.5 seconds, and then it will begin to blink.
6-4. Troubleshooting Trouble No weld output; unit completely inoperative. Remedy Place line disconnect switch in On position (see Section 4-10). Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 4-10). Check for proper input power connections (see Section 4-10). No weld output; Output LED on. Input voltage outside acceptable range of variation (see Section 4-9). See Section 6-3, Troubleshooting Help Aids. No weld output; Overtemp LED on. Unit overheated.
SECTION 7 − ELECTRICAL DIAGRAMS Figure 7-1.
SECTION 8 − SELECTING AND PREPARING A TUNGSTEN FOR DC OR AC WELDING WITH INVERTER MACHINES gtaw_Inverter_7/2006 Whenever possible and practical, use DC weld output instead of AC weld output. 8-1.
SECTION 9 − GUIDELINES FOR (GTAW) TIG WELDING gtaw 7/2006 9-1. Positioning The Torch 3 2 4 90° 1 Grinding the tungsten electrode produces dust and flying sparks which can cause injury and start fires. Use local exhaust (forced ventilation) at the grinder or wear an approved respirator. Read MSDS for safety information. Consider using cerium or lanthanum based tungsten instead of thoriated. Thorium dust contains low-level radioactive material.
9-2. Torch Movement During Welding Tungsten Without Filler Rod 75° Welding direction Form pool Tilt torch Move torch to front of pool. Repeat process. Tungsten With Filler Rod 75° Welding direction Form pool 15° Tilt torch Remove rod Add filler metal Move torch to front of pool. Repeat process. ST-162 002-B 9-3.
SECTION 10 − STICK WELDING (SMAW) GUIDELINES 10-1. Stick Welding Procedure Weld current starts when electrode touches workpiece. Weld current can damage electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Place work clamp as close to the weld as possible. 1 5 2 3 4 2 Work Clamp Electrode A small diameter electrode requires less current than a large one. Follow electrode manufacturer’s instructions when setting weld amperage (see Section 10-2).
7014 7018 7024 Ni-Cl 308L ALL DEEP EP ALL DEEP 6013 EP,EN ALL LOW GENERAL 7014 EP,EN ALL MED 7018 EP ALL LOW SMOOTH, EASY, FAST LOW HYDROGEN, STRONG 7024 EP,EN NI-CL EP FLAT HORIZ FILLET ALL 308L EP ALL USAGE PENETRATION EP 6011 AC 3/32 1/8 5/32 3/16 7/32 1/4 1/16 5/64 3/32 1/8 5/32 3/16 7/32 1/4 3/32 1/8 5/32 3/16 7/32 1/4 3/32 1/8 5/32 3/16 7/32 1/4 3/32 1/8 5/32 3/16 7/32 1/4 3/32 1/8 5/32 3/16 3/32 1/8 5/32 DC* 450 400 350 300 AMPERAGE RANGE 250 200 150 POSI
10-5. Positioning Electrode Holder 10°-30° 90° 90° End View of Work Angle Side View of Electrode Angle GROOVE WELDS 10°-30° 45° 45° End View of Work Angle Side View of Electrode Angle FILLET WELDS S-0060 10-6. Poor Weld Bead Characteristics 1 2 3 4 5 Large Spatter Deposits Rough, Uneven Bead Slight Crater During Welding Bad Overlap Poor Penetration 1 2 4 3 5 S-0053-A 10-7.
10-8. Conditions That Affect Weld Bead Shape NOTE Weld bead shape is affected by electrode angle, arc length, travel speed, and thickness of base metal. Angle Too Small Correct Angle 10° - 30° Angle Too Large Drag ELECTRODE ANGLE Spatter Normal Too Short Too Long ARC LENGTH Normal Slow Fast TRAVEL SPEED S-0061 10-9.
10-10. Butt Joints 1 1 2 Tack Welds Prevent edges of joint from drawing together ahead of electrode by tack welding the materials in position before final weld. 2 Square Groove Weld Good for materials up to 3/16 in (5 mm) thick. 3 1/16 in (1.6 mm) Single V-Groove Weld Good for materials 3/16 − 3/4 in (5-19 mm) thick. Cut bevel with oxyacetylene or plasma cutting equipment. Remove scale from material after cutting. A grinder can also be used to prepare bevels.
10-13. Weld Test 1 2 3 3 Strike weld joint in direction shown. A good weld bends over but does not break. 3 2 To 3 in (51-76 mm) 1/4 in (6.4 mm) Vise Weld Joint Hammer 2 To 3 in (51-76 mm) 2 2 1 1 S-0057-B 10-14. Troubleshooting − Porosity Porosity − small cavities or holes resulting from gas pockets in weld metal. Possible Causes Corrective Actions Arc length too long. Reduce arc length. Damp electrode. Use dry electrode. Workpiece dirty.
10-16. Troubleshooting − Incomplete Fusion Incomplete Fusion − failure of weld metal to fuse completely with base metal or a preceeding weld bead. Possible Causes Corrective Actions Insufficient heat input. Increase amperage. Select larger electrode and increase amperage. Improper welding technique. Place stringer bead in proper location(s) at joint during welding. Adjust work angle or widen groove to access bottom during welding.
10-19. Troubleshooting − Burn-Through Burn-Through − weld metal melting completely through base metal resulting in holes where no metal remains. Possible Causes Excessive heat input. Corrective Actions Select lower amperage. Use smaller electrode. Increase and/or maintain steady travel speed. 10-20. Troubleshooting − Waviness Of Bead Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal. Possible Causes Unsteady hand. Corrective Actions Use two hands.
SECTION 11 − PARTS LIST Hardware is common and not available unless listed. 12 27 13 28 26 28 25 26 615 27 34 11 8 6 19 18 16 401 400 402 10 14 32 3 15 2 29 614 4 9 1 33 5 600 Figure 11-1.
Item No. Dia. Mkgs. Part No. Description Quantity Figure 11-1. Main Assembly 1 . . . . . . . . . . . . . . . . . Fig11-2 2 . . . . . . . . . . . . . . . . . Fig11-3 3 . . . . . . . . . . . . . . . . . Fig11-4 4 . . . . . . . . . . . . . . . . . Fig11-5 5 . . . . . . . . . . . . . . . . . Fig11-7 6 . . . . . . . . S1 . . . . . 128756 8 . . . . . . . PM1 . . . . . 204821 9 . . . . . . . . . . . . . . . . . . 049611 10 . . . . . . . . . . . . . . . . 196727 11 . . . . . . . . . . . . . . . +195643 12 . .
Hardware is common and not available unless listed. 602 400 10 601 603 1 3 7 17 14 6 12 13 4 605 5 2 9 11 8 Item No. Dia. Mkgs. 15 16 Figure 11-2. Panel, Front w/Components Part No. Description 202 508-E Quantity 11-2. Panel, Front w/Components (Figure 11-1 Item 1) 1 . . . . . . . . . . . . . . . . . 194242 2 . . . . . . . . . . . . . . . . . 195647 3 . . . . . . . . . . . . . . . . . 202325 4 . . . . . . . . . . . . . . . . . 174992 5 . . . . . . . . . . . . . . . . . 174991 6 . . .
Hardware is common and not available unless listed. 3 5 4 1 600 2 Item No. Dia. Mkgs. 202 397-E Figure 11-3.Panel, Rear w/Components Part No. Description Quantity Figure 11-3. Panel, Rear w/Components (Figure 11-1 Item 2) 1 . . . . . . . . . . . . . . . . . 194242 2 . . . . . . . . . . . . . . . . . 206053 3 . . . . . . . . . . . . . . . . . 195646 4 . . . . . . . . . . . . . . . . . . 201155 5 . . . . . . . . . . . . . . . . . 207253 600 . . . . . . . . . . . . . . . 198245 .... .... .... ..
603 604 613 613 3 17 605 603 14 13 617 10 12 12 9 617 1 14 611 13 604 605 614 Hardware is common and not available unless listed. 8 11 6 Item No. Dia. Mkgs. Figure 11-4. Magnetics Assembly w/Components Part No. Description 202 398-H Quantity Figure 11-4. Magnetics Assembly w/Components (Figure 11-1 Item 3) 1 ................. 3 . . . . . . . FM1 . . . . . 6 . . . . . . . CR1 . . . . . 8 ................. 9 . . . . . . . . L2 . . . . . 10 . . . . . . . L3 . . . . . 11 . . . . . . .
Item No. Dia. Mkgs. Part No. Description Quantity Figure 11-4. Magnetics Assembly w/Components (Figure 11-1 Item 3) (Continued) 17 . . . . . . . . . . . . . . . . 213208 . . . . Connector, Faston Male 1/4 Ring W/75deg Bend . . . . . . . . . . . . . . . . . . . 1 603 . . . . . . . . . . . . . . . 057357 . . . . Bushing, Snap−in Nyl .937 Id X 1.125 Mtg Hole . . . . . . . . . . . . . . . . . . . . 2 604 . . . . . . . . . . . . . . . 182737 . . . . Screw, 010−32x2.00 Rnd Hd−slt Brs Pln . . . . . . . . . .
1 Hardware is common and 8 not available unless listed. 4 2 602 6 3 5 7 199 494-F 10 Item No. Figure 11-5. Windtunnel w/Components Dia. Mkgs. Part No. Description Quantity Figure 11-5. Windtunnel w/Components (Figure 11-1 Item 4) 1 . . . . . . . . . . . . . . . . . . 195645 2 . . . . . . . . . . . . . . . . . . 198634 3 . . . . . . . . . . . . . . . . . . 198633 4 . . . . . . . . . . . . . . . . . . 232856 5 . . . . . . . . . . . . . . . . . . 198652 6 . . . . . . . . . . . . . . . . .
606 Hardware is common and not available unless listed. 2 604 604 5 6 600 601 7 3 602 4 1 Figure 11-6. Heat Sink, Secondary Assembly Item No. Dia. Mkgs. Part No. Description 199 497-H Quantity Figure 11-6. Heat Sink, Secondary Assembly (Figure 11-5 Item 7) 1 . . . . . . . . . . . . . . . . . . 210783 . . . . Heat Sink, Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 . . . . . . . . D1 . . . . . . 204820 . . . .
Hardware is common and not available unless listed. Figure 11-7. Base Assembly Item No. Dia. Mkgs. Part No. Description 199 493-B Quantity Figure 11-7. Base Assembly (Figure 11-1 Item 5) 1 . . . . . . . . . . . . . . . . . . 195644 . . . . Base, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 . . . . . . . . . . . . . . . . . . 019663 . . . . Mount, Nprn 15/16odx3/8rec 3/16x3/8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Effective January 1, 2007 (Equipment with a serial number preface of “LH” or newer) Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. Your distributor also gives you ... Service You always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours. Support Need fast answers to the tough welding questions? Contact your distributor. The expertise of the distributor and Miller is there to help you, every step of the way.
Owner’s Record Please complete and retain with your personal records. Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to original customer.) Distributor Address City State Zip For Service Contact a DISTRIBUTOR or SERVICE AGENCY near you. Always provide Model Name and Serial/Style Number. Contact your Distributor for: Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Miller Electric Mfg. Co.