Instruction/ maintenance manual of the product 812 Miller Electric
Go to page of 40
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.
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 .
T ABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 .
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 .
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.
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.
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.
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.
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.
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.
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.
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 .
OM-278 Page 6.
. 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.
. 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.
. 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.
. 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.
. 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.
. 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.
. 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 (96.
. 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.
. 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.
. 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.
. 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 .
. 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.
. 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.
. 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.
. 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.
. 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.
. 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.
. 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.
. 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 ).
OM-278 Page 26 SECTION 7 − ELECTRICAL DIAGRAM Figure 7-1. Circuit Diagram.
OM-278 Page 27 218 514-B.
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 .
.
.
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.
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 .
An important point after buying a device Miller Electric 812 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Miller Electric 812 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Miller Electric 812 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Miller Electric 812 you will learn all the available features of the product, as well as information on its operation. The information that you get Miller Electric 812 will certainly help you make a decision on the purchase.
If you already are a holder of Miller Electric 812, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Miller Electric 812.
However, one of the most important roles played by the user manual is to help in solving problems with Miller Electric 812. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Miller Electric 812 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
