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Manual Miller Electric OM-225A

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  • Miller Electric OM-225A - page 1

    Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM-225A February 1998 Eff. w/Serial Number KG155768 Spectrum 650 Cut F orc e R  Visit our website at www.MillerWelds.com ...

  • Miller Electric OM-225A - 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 catalog sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .MillerW eld ...

  • Miller Electric OM-225A - page 3

    OM-225 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING pom _nd_5/97 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. This group of symbols means W arning! Watch O ...

  • Miller Electric OM-225A - page 4

    OM-225 Page 2 Sparks and hot metal blow out from the cutting arc. Chipping and grinding cause flying metal. FL YING SP ARKS can cause injury . D W ear approved face shield or safety goggles with side shields. D W ear proper body protection to protect skin. D Wear flame-resistant ear plugs or ear muf fs to prevent sparks from entering ears. Arc rays ...

  • Miller Electric OM-225A - page 5

    OM-225 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance HOT P ARTS can cause severe burns. D Do not touch hot parts bare handed. D Allow cooling period before working on torch. MOVING P ARTS can cause injury . D Keep away from moving parts such as fans. D Keep all doors, panels, covers, and guards closed and securely in p ...

  • Miller Electric OM-225A - page 6

    OM-225 Page 4 1-5. EMF Information Considerations About Welding Or Cutting And The Ef fects Of Low Frequency Electric And Magnetic Fields W elding or cutting current, as it flows through the welding or cutting cables, will cause electromagnetic fields. There has been and still is some concern about such fields. However , after examining more than 5 ...

  • Miller Electric OM-225A - page 7

    OM-225 Page 5 SECTION 1 – CONSIGNES DE S É CURIT É – LIRE A V ANT UTILISA TION pom_nd_fre_5/97 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette proc é dure pr é sente des risques de danger ! Ceux-ci sont identifi é s par des symboles adjacents aux directives. Y Identifie un message de s é curit é particulie ...

  • Miller Electric OM-225A - page 8

    OM-225 Page 6 D N ’ approchez pas le tube du chalumeau et l ’ arc pilote lorsque la g â chette est enfonc é e. D Le c â ble de masse doit ê tre pinc é correctement sur la pi è ce à couper , m é tal contre m é tal (et non de telle sorte qu ’ il puisse se d é tacher), ou sur la table de travail le plus pr è s possible de la ligne de ...

  • Miller Electric OM-225A - page 9

    OM-225 Page 7 1-3. Dangers suppl é mentaires en relation avec l ’ installation, le fonctionnement et la maintenance DES PIECES CHAUDES peuvent pro- voquer des br û lures graves. D Ne pas toucher des parties chaudes à mains nues. D Laisser refroidir avant d ’ intervenir sur la torche. DES ORGANES MOBILES peuvent provoquer des blessures. D S ? ...

  • Miller Electric OM-225A - page 10

    OM-225 Page 8 1-5. Information sur les champs é lectromagn é tiques Donn é es sur le soudage é lectrique et sur les ef fets, pour l ’ organisme, des champs magn é tiques basse fr é quence Le courant de soudage ou de coupage passant dans les c â bles de puis- sance c r é e des causera des champs é lectromagn é tiques. Il y a eu et il y a ...

  • Miller Electric OM-225A - page 11

    OM-225 Page 9 SECTION 2 – INST ALLA TION 2-1. Specifications Input Power Rated Output Amperes Input at Rated Load Output T ype of Output Plasma Gas Plasma Gas Flow/ Rated Cutting Maximum Open- Circuit Power 230 V 460 V KV A KW Output Gas Pressure Capacity V oltage DC Single- Phase 50 A @ 1 1 0 V olts DC, 50% Duty Cycle 48 (0.4*) 24 (0.2*) 1 1.2 ( ...

  • Miller Electric OM-225A - page 12

    OM-225 Page 10 2-3. Cutting Speed The cutting speed curves show the recommended maximum cutting speed capabilities of the power source and torch for mild steel of various thickness. Cut at speeds below the lines shown t o avoid poor cuts and torch wear . ST-180 909 Cutting speed is approximately 10 inches per minute at 5/8 in mild steel thickness a ...

  • Miller Electric OM-225A - page 13

    OM-225 Page 1 1 19 in (483 mm) 2-4. Selecting A Location Ref. ST-801 390 / ST -801 393 1 Lifting Handles Use handles to lift unit. 2 Hand Cart Use cart or similar device to move unit. 3 Rating Label Use rating label to determine input power needs. 4 Line Disconnect Device Locate unit near correct input power supply . Y Special installation may be r ...

  • Miller Electric OM-225A - page 14

    OM-225 Page 12 2-5. Connecting Work Clamp And Gas/Air Supply 1 Work Clamp 2 W orkpiece Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible. 3 Gas/Air Input (Female 1/4 NPT) 4 Quick Connect Gas Fitting 5 Standard Pipe Fitting (Male 1/4 Inch) Obtain desired fitting. W rap threads with teflon tape or a ...

  • Miller Electric OM-225A - page 15

    OM-225 Page 13 L1 2-7. Connecting Input Power input_2 – 3/96 / Ref. ST-144 221 / Ref. ST -070 399-C / Ref. ST -801 390 / ST-801 392 Check input voltage available at site. 1 Input V oltage Selector Switch 2 Selector Switch Label Rotate switch to match input voltage. 3 Input And Grounding Conductors 4 Line Disconnect Device See Section 2-6. For sin ...

  • Miller Electric OM-225A - page 16

    OM-225 Page 14 SECTION 3 – OPERA TION 3-1. Controls ST-801 394 12 3 5 1 Power Switch 2 Power Light Power light comes On when Power switch is placed in On position. When unit is turned On, the power light blinks for a short time (3 seconds for 230 V AC, 1 se- cond f o r 460 V AC) to indicate a delay during which the circuits are being initialized. ...

  • Miller Electric OM-225A - page 17

    OM-225 Page 15 3-2. Sequence Of Operation Put On Personal Safety Equipment Install & Connect Equipment EXAMPLE Of Cutting Operation ST-801 400-A Press trigger . Pilot arc starts. Postflow continues for approx. 20 to 30 seconds after releasing trigger; cutting arc can be instantly restarted during postflow by pressing trigger . Check T orch Tip, ...

  • Miller Electric OM-225A - page 18

    OM-225 Page 16 SECTION 4 – MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more often during severe conditions. Each Use Check T orch T ip, Electrode, And Shield Cup Check Gas/Air Pressure Every Week Check Shield Cup Shutdown System 3 Months Service A i r Filter/Regulator Replace Damage ...

  • Miller Electric OM-225A - page 19

    OM-225 Page 17 4-2. T rouble Lights 1 Pressure Light Lights if gas/air pressure is below 40 PSI (276 kPa). Tur n power Of f, and check for prop- er gas/air pressure (see Section 2-5). 2 Cup Light Lights if shield cup is loose. T urn power Off, and check shield cup connection (see torch Owner ’ s Manual). Power must be reset whenever the cup shutd ...

  • Miller Electric OM-225A - page 20

    OM-225 Page 18 4-4. T roubleshooting T rouble Remedy No pilot arc; dif ficulty in establishing an arc. Clean or replace worn consumables as necessary (see torch Owner ’ s Manual). Check for damaged torch or torch cable (see torch Owner ’ s Manual). No cutting output; Power light of f; T rouble lights of f; Ready light o f f; fan mo- tor FM does ...

  • Miller Electric OM-225A - page 21

    OM-225 Page 19 SECTION 5 – ELECTRICAL DIAGRAM SC-186 187 Figure 5-1. Circuit Diagram ...

  • Miller Electric OM-225A - page 22

    OM-225 Page 20 SECTION 6 – P ARTS LIST Figure 6-1. Complete Assembly 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 23 32 31 30 27 33 34 37 36 35 39 38 40 41 42 43 44 45 46 47 48 49 50 ST-801 407-B 29 28 51 52 ...

  • Miller Electric OM-225A - page 23

    OM-225 Page 21 Description Part No. Dia. Item No. Figure 6-1. Complete Assembly Quantity Mkgs. 1 126 026 LABEL, warning electric shock 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 171 321 KIT , replacement handle black 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Miller Electric OM-225A - page 24

    OM-225 Page 22 Description Part No. Dia. Item No. Figure 6-1. Complete Assembly (Continued) Quantity Mkgs. 48 R1,3 181 391 RESISTOR, .3 ohm 140W 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 PC5 181 389 CF PWB, assembly 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Miller Electric OM-225A - page 25

    OM-225 Page 23 Notes ...

  • Miller Electric OM-225A - page 26

    OM-225 Page 24 Notes ...

  • Miller Electric OM-225A - page 27

    Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 7/00 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 expertise o ...

  • Miller Electric OM-225A - page 28

    PRINTED IN USA  2000 Miller Electric Mfg. Co. 6/00 Miller Elect ric Mfg. Co. An I l li noi s T ool W orks Company 1635 W est S pencer Street Applet on, W I 5 4914 USA International He adquarte rs – USA USA Phone: 920-735-4505 Auto-A t t ended USA & C anada F AX: 920-735-4134 Int ernational F AX: 920-735-4125 European Headqua rters – Unit ...

Manufacturer Miller Electric Category Welder

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A complete manual for the device Miller Electric OM-225A, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Miller Electric OM-225A by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Miller Electric OM-225A.

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.

1. Preface and tips on how to use the manual Miller Electric OM-225A - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Miller Electric OM-225A, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Miller Electric OM-225A, that we can find in the current document
3. Tips how to use the basic functions of the device Miller Electric OM-225A - which should help us in our first steps of using Miller Electric OM-225A
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Miller Electric OM-225A
5. FAQ - Frequently Asked Questions
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