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Manual Miller Electric 812

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  • Miller Electric 812 - page 1

    652 and 812 Processes Description Multiprocess W elding Arc Welding Power Source OM-278 163 769AC 2007 − 08 Dimension ™ Visit our website at www.MillerWelds.com File: Multi-Process ...

  • Miller Electric 812 - page 2

    Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .Mille ...

  • Miller Electric 812 - page 3

    T ABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Arc W elding Hazards 1 . . . . . . . ...

  • Miller Electric 812 - page 4

    dec_stat_6/05 Declaration of Conformity for European Community (CE) Products This information is provided for units with CE certification (see rating label on unit). NOTE Manufacturer : European Contact: Miller Electric Mg. Co. Mr . Danilo Fedolfi, 1635 W . Spencer St. Managing Director Appleton, WI 54914 USA ITW Welding Products Italy S.r .l. Phon ...

  • Miller Electric 812 - page 5

    OM-278 Page 1 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _2007 − 04 7 Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if not avoided, will result in death or serious injury . The possible hazards are shown in the adjoining symbols or ...

  • Miller Electric 812 - page 6

    OM-278 Page 2 W elding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. FUMES AND GASES can be hazardous. D Keep your head out of the fumes. Do not breathe the fumes. D If inside, ventilate the area and/or use local forced ventilation at the arc to remove welding fumes and gases. D If ventilation is poor , ...

  • Miller Electric 812 - page 7

    OM-278 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over , or near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring − be sure power supply system is properly sized, rated, and protected to handle this unit. F A ...

  • Miller Electric 812 - page 8

    OM-278 Page 4 1-4. California Proposition 65 W arnings W elding or cutting equipment 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 Section 25249.5 et seq.) Battery posts, terminals and related accessories contain lead and lead ...

  • Miller Electric 812 - page 9

    OM-278 Page 1 SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE A V ANT UTILISA TION fre_som_2007 − 04 7 Se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. S ym bol es u t ilisés DANGER! − Indique une situation dangereuse qui si on l’évite pas peut donner la mort ou des blessures graves. ...

  • Miller Electric 812 - page 10

    OM-278 Page 2 Il reste une TENSION DC NON NÉGLIGEABLE dans les sources de soudage onduleur quand on a coupé l’alimentation. D Arrêter les convertisseurs, débrancher le courant électrique et décharger les condensateurs d’alimentation selon les instructions indiquées dans la partie Entretien avant de toucher les pièces. DES PIÈCES CHAUDE ...

  • Miller Electric 812 - page 11

    OM-278 Page 3 LES ACCUMULA TIONS DE GAZ risquent de provoquer des blessures ou même la mort. D Fermer l’alimentation du gaz protecteur en cas de non-utilisation. D V eiller toujours à bien aérer les espaces confi- nés ou se servir d’un respirateur d’adduction d’air homologué. LES CHAMPS MAGNETIQUES peuv- ent affecter des implants médi ...

  • Miller Electric 812 - page 12

    OM-278 Page 4 LES FILS DE SOUDAGE peuvent provoquer des blessures. D Ne pas appuyer sur la gâchette avant d’en avoir reçu l’instruction. D Ne pas diriger le pistolet vers soi, d’autres per- sonnes ou toute pièce mécanique en enga- geant le fil de soudage. DES ORGANES MOBILES peuvent provoquer des blessures. D S’abstenir de toucher des o ...

  • Miller Electric 812 - page 13

    OM-278 Page 5 2-5. P r i nc ip al e s n or m e s d e sé c ur i té Safety i n W elding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www .global.ihs.com). Recommended Safe Practices for the Preparation for W elding and Cut- ting of Containers and Piping , America ...

  • Miller Electric 812 - page 14

    OM-278 Page 6 ...

  • Miller Electric 812 - page 15

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 7 SECTION 3 − DEFINITIONS 3-1. General Precautionary Label W arning! Watch Out! There are possible hazards as shown by the symbols. 1 Electric shock from welding electrode or wiring can kill. 1.1 Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear ...

  • Miller Electric 812 - page 16

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 8 3-2. Input Connection Label 1 W arning! W atch Out! There are possible hazards as shown by the symbols. 2 Electric shock from wiring can kill. 3 Disconnect input plug or power before working on machine. 4 Read the Owner ’ s Manual before working on this machine. 5 Consult ...

  • Miller Electric 812 - page 17

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 9 3-5. Manufacturer ’ s Rating Label For CE Products . For label location see Section 4-4. 3-6. WEEE Label (For Products Sold Within The EU) Do not discard product (where ap- plicable) with general waste. Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by ...

  • Miller Electric 812 - page 18

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 10 3-7. Symbols And Definitions Some symbols are found only on CE products. NOTE A Amperes Amperage/V oltage Control − Panel Gas Tungsten Arc W elding (GT A W) Shielded Metal Arc W elding (SMAW) T emperature Wire Feeder Arc Force (DIG) Gas Metal Arc W elding (GMAW) Output C ...

  • Miller Electric 812 - page 19

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 1 1 4-2. Duty Cycle And Overheating Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating. If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. W ait fifteen minutes for unit to cool. Reduce amperage or duty cycle ...

  • Miller Electric 812 - page 20

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 12 4-4. Selecting A Location 1 Lifting Eye 2 Lifting Forks Use lifting eye or lifting forks to move unit. If using lifting forks, extend forks beyond opposite side of unit. 3 Rating Label (Non CE Models Only) Use rating label to determine input power needs. Label located unde ...

  • Miller Electric 812 - page 21

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 13 4-5. Dimensions And Weights Dimensions Di mens i ons A A 30 in (762 mm) Including lift eye B 23 in (584 mm) B C C 38 in (965 mm) Including strain relief F D 35 in (889 mm) F G H 4 Holes E 1-1/4 in (32 mm) 4 Holes F 21-1/8 in (537 mm) D G 1-1/8 in (29 mm) D H 7/16 in (1 1 m ...

  • Miller Electric 812 - page 22

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 14 4-6. Tipping ! Be careful when placing or moving unit over uneven surfaces. 4-7. 1 15 V AC Receptacle And Supplementary Protectors 3 Ref. 800 166-D ! T urn Off power before connecting to receptacle. 1 1 15 V 15 A AC Receptacle RC9 Power is shared between RC9 an d Remote 14 ...

  • Miller Electric 812 - page 23

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 15 4-9. Selecting Cable Sizes T o reduce possible interference, keep weld cables as short as possible, close together , and down low , such as on the floor . Locate welding operation 100 meters from any sensitive electronic equipment. Be sure this welding machine is installed ...

  • Miller Electric 812 - page 24

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 16 4-1 1. Mig (GMA W) Cable Connections Polarity: For Electrode Positive (DCEP), connect weld cables as shown. For Electrode Negative (DCEN), typical for Gasless Flux Cored W elding, reverse cable connections at welding power source. Gas Flowmeter/ Regulator Rear Of Wire Feed ...

  • Miller Electric 812 - page 25

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 17 4-12. Mig (GMA W) And Flux Cored (FCA W) Cable Connections Gas Flowmeter/ Regulator Rear Of Wire Feeder ++ − HIGH INDUCT ANCE LOW INDUCT ANCE or GMA W / FCA W Rear Of Wire Feeder ++ − LOW INDUCT ANCE FCA W (Gasless) (Gasless FCAW) (Gasless FCAW) ! T urn Off power befor ...

  • Miller Electric 812 - page 26

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 18 4-13. TIG (GT A W) Cable Connections ++ − Gas Flowmeter/ Regulator HIGH INDUCT ANCE Optional HF Unit ! T urn Off power before making connections. . For better performance for most GT A W applications, it is recommended that electrode negative (DCEN) weld output connectio ...

  • Miller Electric 812 - page 27

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 19 4-15. Connecting Remote Control Ref. 800 166-D ! T urn off power before con- necting a remote control. 1 Remote 14 Receptacle RC8 Connect remote control to RC8. OR OR AJ B K I C L NH D M G E F 1 4-16. Electrical Service Guide 60 Hz Models 50 Hz Models Input V oltage 230 46 ...

  • Miller Electric 812 - page 28

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 20 4-17. Placing Jumper Links Ref. 800 103-A ! Disconnect and lockout/tag- out input power before installing or moving jumper links. Check input voltage available at site. 1 Jumper Link Label Check label − only one is on unit. 2 Jumper Links Move jumper links to match input ...

  • Miller Electric 812 - page 29

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 21 4-18. Connecting Input Power 800 103-C / Ref. 801 1 16-A 3/8 in 3/8 in T ools Needed: ! Installation must meet all National and Local Codes − have only quali- fied persons make this installation. ! Disconnect and lockout/tagout input power before connecting input con- du ...

  • Miller Electric 812 - page 30

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 22 SECTION 5 − OPERA TION 5-1. Controls (Non CE Models) 4 1 2 3 7 8 5 6 Ref. 184 939 1 Arc Force (Dig) Control Control increases SMAW short-circuit amperage which allows the operator to use a very short arc length without sticking the electrode. Se t control at 0 for normal ...

  • Miller Electric 812 - page 31

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 23 5-2. Controls (CE Models) 4 Ref. 184 936 12 3 7 8 5 6 1 Arc Force (Dig) Control Control increases SMAW short-circuit amperage which allows the operator to use a very short arc length without sticking the electrode. Se t control at 0 for normal welding amperage and GT A W a ...

  • Miller Electric 812 - page 32

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 24 SECTION 6 − MAINTENANCE & TROUBLESHOOTING 6-1. Routine Maintenance ! Disconnect power before maintaining. 3 Months Replace unreadable labels. Clean and tighten weld terminals. Repair or replace cracked weld cable. 6 Months Blow out or vacuum inside. During heavy serv ...

  • Miller Electric 812 - page 33

    . A complete Parts List is available at www .MillerW elds.com OM-278 Page 25 6-4. T roubleshooting T rouble Remedy No weld output; unit completely inoperative; pilot light PL1 off. Place line disconnect device in On position (see Section 4-18 ). Check for open line fuse(s), and replace if open (see Section 4-18 ). Check for proper input power conne ...

  • Miller Electric 812 - page 34

    OM-278 Page 26 SECTION 7 − ELECTRICAL DIAGRAM Figure 7-1. Circuit Diagram ...

  • Miller Electric 812 - page 35

    OM-278 Page 27 218 514-B ...

  • Miller Electric 812 - page 36

    OM-278 Page 28 SECTION 8 − P ARTS LIST A complete Parts List is available on-line at www .MillerW elds.com. NOTE 8-1. Recommended Spare Parts Description Part No. Dia. Mkgs. Recommended Spare Parts Quantity F1 156 065 FUSE, crtg .5A 600V time delay 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Miller Electric 812 - page 37

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  • Miller Electric 812 - page 39

    Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 2007 − 01 Y our distributor also gives you ... Service Y ou 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 expe ...

  • Miller Electric 812 - page 40

    PRINTED IN USA © 2007 Miller Electric Mfg. Co. 2007 − 01 Miller Elect ric Mfg. Co. An Illinois T ool Wo rks Compan y 1635 West S pencer S treet Applet on, WI 5 4914 US A International He adquarter s − US A USA Phone: 920-735-4505 Aut o-At tended USA & Canada F AX : 920-735-4134 Int ernati onal F AX: 9 20-735-4125 European Headqua rters − ...

Manufacturer Miller Electric Category Welder

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Miller Electric 812 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Miller Electric 812.

A complete Miller Electric manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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5. FAQ - Frequently Asked Questions
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