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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.
DECLARATION OF CONFORMITY for European Community (CE marked) products. MILLER Electric Mfg. Co., 1635 Spencer Street, Appleton, WI 54914 U.S.A. declares that the product(s) identified in this declaration conform to the essential requirements and provisions of the stated Council Directive(s) and Standard(s).
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som 2015−09 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions.
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D Remove stick electrode from holder or cut off welding wire at FUMES AND GASES can be hazardous. contact tip when not in use. D Wear body protection made from durable, flame−resistant material Welding produces fumes and gases. Breathing (leather, heavy cotton, wool). Body protection includes oil-free these fumes and gases can be hazardous to your clothing such as leather gloves, heavy shirt, cuffless trousers, high health.
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can injure. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables.
1-4. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to the state of California to cause cancer, birth defects, or other cause birth defects and, in some cases, cancer.
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION fre_som_2015−09 Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité et au mode opératoire. 2-1.
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chauffement ou un incendie. Avant de commencer le soudage, vérifier LES PIÈCES CHAUDES peuvent et s’assurer que l’endroit ne présente pas de danger. provoquer des brûlures. D Déplacer toutes les substances inflammables à une distance de D Ne pas toucher à mains nues les parties chaudes. 10,7 m de l’arc de soudage.
D Placer les bouteilles debout en les fixant dans un support station- déroule du soudage à l’arc, du soudage par points, du gougeage, de la découpe plasma ou une opération de chauffage par naire ou dans un porte-bouteilles pour les empêcher de tomber ou induction.
D N’utiliser que les pièces de rechange recommandées par le LE SOUDAGE À L’ARC risque de constructeur. provoquer des interférences. D Effectuer l’installation, l’entretien et toute intervention selon les manuels d’utilisateurs, les normes nationales, provinciales et de D L’énergie électromagnétique risque l’industrie, ainsi que les codes municipaux.
SECTION 3 − DEFINITIONS 3-1. Additional Safety Symbols And Definitions Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 Do not discard product (where applicable) with general waste. Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection facility.
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Welding sparks can cause fires. Have a fire extinguisher nearby, and have a watchperson ready to use it. Safe63 2012−06 Do not weld on drums or any closed containers. Safe16 2017−04 Do not remove or paint over (cover) the label. Safe20 2017−04 Drive rolls can injure fingers.
3-2. Miscellaneous Symbols And Definitions Some symbols are found only on CE products. Rated Welding Amperes Three Phase Current Direct Current Primary Voltage (DC) Program Degree Of Protection Output Variable Inductance Hertz Duty Cycle Preflow Time Set Up Input Line Connection Increase Constant Current Conventional...
SECTION 4 − SPECIFICATIONS 4-1. Serial Number And Rating Label Location The serial number and rating information for this product is located on the rear panel. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual. 4-2.
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D. China EEP Hazardous Substance Information China EEP Hazardous Substance Information Ö Hazardous Substance Component Name × (if applicable) PBDE Ö Brass and Copper Parts Coupling Devices Switching Devices Ö Cable and Cable Accessories Batteries SJ/T 11364 This table is prepared in accordance with China SJ/T 11364.
SECTION 5 − INSTALLATION 5-1. Selecting A Location Do not put feeder where welding wire hits cylinder. Wire feeder shown is repre- sentative only and may not reflect actual unit. Wire Feeder Rubber Feet Choose slot that allows all rubber feet to sit securely on top of welding power source.
5-2. Rear Panel Connections And Rotating Drive Assembly 14-Pin Control Cable - 10 ft (3.0 m) Shielding Gas Valve Fitting Connect customer-supplied gas hose with 5/8-18 right-hand threads. Shielding gas pressure not to exceed 100 PSI (689 kPa). Weld Cable Terminal Weld Cable Drive Assembly Drive Assembly Rotation...
5-3. 14-Pin Plug PLG12 Information Pin* Pin Information 24 volts AC with respect to socket G. Contact closure to A completes 24 volts AC contactor control circuit. Circuit common for 24 volts AC circuit. +10 volts DC input from power source to wire feeder with respect to socket D. Remote control circuit common.
5-6. Setting Internal DIP Switches Remove wrapper. DIP Switch S1 On Motor Board PC1 w Setting Current Detect Override (S1-1) Current detect override is used to disable run-in when a welding pow- er source is used that doesn’t pro- vide current feedback through the 14-pin receptacle.
5-7. Equipment DIP Switch Settings (For Models With Meters Only) Remove wrapper. Install wrapper when finished. Digital Meter Functions Standard Standard High Speed High Speed Motor Motor Motor Motor Inches/Minute Meters/Minute Inches/Minute Meters/Minute Tools Needed: 1/4 in. Ref. 802946-B OM-1500-10 Page 19...
SECTION 6 − OPERATION 6-1. Power Switch Power Switch 802827-B 6-2. Jog/Purge Jog/Purge Push Button Wire Speed Control Gun Trigger Receptacle Pressing the Jog/Purge switch al- lows the operator to jog wire without energizing the weld power or gas valve circuit. •...
6-3. Trigger Hold Switch 802828-B • To use the trigger hold function, place the Trigger Hold Switch seconds before releasing it. Welding will trigger hold switch in the On position. continue when the trigger is released. • The operator must hold the trigger for a mini- Trigger hold allows the operator to weld with- •...
7-2. Diagnostics Wrapper Motor Control Board PC1 LED3 Front panel is shown removed for purpose of illustration only. In actual use, front panel would be in place. Display On LED3 Sequence On Meter Motor Control Board PC1 Indicated Error (If Equipped) HELP 11 1 Blink Communication Error...
7-3. Troubleshooting Disconnect power before troubleshooting. Trouble Remedy Wire feeds, shielding gas flows, but Check cable connections. Check cables for continuity, and repair or replace cables if necessary (see electrode wire is not energized. Section 5-2). Wire feeder is on, display does not light Check and reset circuit breaker at welding power source.
SECTION 9 − PARTS LIST Hardware is common and not available unless listed. Fig 9-3 Fig 9-2 802943-B Figure 9-1. Main Assembly OM-1500-10 Page 26...
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Item Item Part Part Description Description Quantity Quantity Figure 9-1. Main Assembly ....159647 Insulator, Motor Clamp ......... . .
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Item Diagram Part Model marking Description S-74S S-74D Figure 9-2. Control Box (Figure 9-1 Item 21) ....200555 Wrapper, Feeder .........
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Diagram Part Model marking Description S-74S S-74D Figure 9-2. Control Box (Figure 9-1 Item 21) ....213134 Knob, Encoder 1.670 Dia X .250 Id Push On W/Spring .
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Diagram Part Model marking Description S-74S S-74D Figure 9-3. Drive Assembly, Wire (Figure 9-1 Item 4) ....010668 Screw, Cap Stl Sch .250-20 X 1.500 .
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Part Model marking Description S-74S S-74D Figure 9-3. Drive Assembly, Wire (Continued) ..... 203631 Pressure Arm, S/L & Vert S/R 4 Roll (Consisting Of) .
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Table 9-1. Drive Roll And Wire Guide Kits OM-1500-10 Page 32...
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Notes Start Your Professional Over 80,000 trained 400 Trade Square East, Troy, Ohio 45373 Welding Career Now! since 1930! 1-800-332-9448 www.welding.org...
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Effective January 1, 2017 (Equipment with a serial number preface of MH or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. Warranty Questions? LIMITED WARRANTY − Subject to the terms and conditions below, 6 Months —...