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Miller Electric 271 manual

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Table of contents for the manual

  • Page 1

    Migmatic 271/273/293/333/383 Processes Description MIG (GMAW) W elding Flux Cored (FCA W ) W elding Arc Welding Power Source Wire Feeder OM-223 194E 2006 − 09 Effective with serial number 226 213 www.MillerWelds.com R[...]

  • Page 2

    Thank you and congratulations on choosing Miller . Now you can get the job done and get it done right. W e 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 af [...]

  • 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 . . . . . . . [...]

  • Page 4

    dec_stat_Milan_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: ITW Welding Products Italy S.r .l. Mr . Danilo Fedolfi, Via Privata Iseo 6/E Managing Director 20098 San Giuliano ITW Welding Products Italy[...]

  • Page 5

    OM-223 194 Page 1 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _3/05 Y W arning: Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown i n the adjoining symbols. Y Marks a special safety m[...]

  • Page 6

    OM-223 194 Page 2 Arc rays from the w elding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. ARC RA YS can burn eyes and skin. D Wear an approved welding helmet fitted with a proper shade of fil- ter lenses to protect your face and eyes when welding or watching[...]

  • Page 7

    OM-223 194 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.[...]

  • Page 8

    OM-223 194 Page 4 1-5. Principal Safety Standards Safety i n W elding, Cutting, and Allied Processes, ANSI Standard Z49.1, from Global Engineering Documents (phone: 1-877-413-5184, website: www .global.ihs.com). Recommended Safe Practices for the Preparation for W elding and Cut- ting of Containers and Piping , American Welding Society Standard A W[...]

  • Page 9

    OM-223 194 Page 5 SECTION 2 − DEFINITIONS W arning! Watch Out! There are possible hazards as shown by the symbols. 1 Electric shock can kill. 1.1 W ear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves. 1.2 Protect yourself from electric shock by insulating yourself from work and ground. 1.3 Disconnec[...]

  • Page 10

    OM-223 194 Page 6 W arning! W atch Out! There are possible hazards as shown by the symbols. Electric shock from wiring can kill. Disconnect input plug or power before working on machine. Read the Owner ’ s Manual before working on this machine. 1 Consult rating label for input power requirements, and check power available at the job site − they[...]

  • Page 11

    OM-223 194 Page 7 1 Warning! W atch Out! There are possible hazards as shown by the symbols. 2 Electrical shock from wiring can kill. 3 Read Owner ’ s Manual before working on this machine 4 Wear approved safety glasses 5 Electrode Positive (Straight Polarity) Place terminal strips as shown. 6 Electrode Negative (reverse Polarity) Place terminal [...]

  • Page 12

    OM-223 194 Page 8 SECTION 3 − INST ALLA TION 3-1. Specifications Max. Rated Input Amperage Rated Output Max . Open Ci i Rated Input Amperage at Rated Output Di i Wi h t Model 100% 60% 20% Open Circuit V oltage 220/230 V AC 50Hz Dimension (mm) W eight (kg) 271 1 10 A 20.0 V 150 A 21.0 V 240 A 26 V 41 32 A 3 A* 480 x 800 x 1050 85 Net Wire feed spe[...]

  • Page 13

    OM-223 194 Page 9 3-2. Duty Cycle And Overheating 6 Minutes W elding 4 Minutes Resting 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. Wait fifteen minutes for unit to cool. Reduce amperage or voltage, or duty cycle before weld[...]

  • Page 14

    OM-223 194 Page 10 3-4. Installing Gas Supply Ref. ST-148 265-B / Ref. ST -149 827-B / Ref. ST-158 697-A 2 CO 2 Gas 1 Argon Gas OR 3 Chain gas cylinder to running gear , wall, or other stationary support so cylinder cannot fall and break off valve. 1 Regulator/Flow Gauge Install so face is vertical. 2 Gas Hose Connection 3 Flow Adjust T ypical flow[...]

  • Page 15

    OM-223 194 Page 1 1 3-6. Positoning Jumper Links (230/400V 3-Phase Models) 230 V 400 V 3-7. Electrical Service Guide Migmatic Model 271 273 293 333 383 Input V oltage 230 230 400 230 400 230 400 230 400 Input Amperes at Rated Output 35 23 13 30 18 32 19 38 22 Max Recommended Standard Fuse or Circuit Breaker Rating in Am- peres 35 23 13 30 18 32 19 [...]

  • Page 16

    OM-223 194 Page 12 3-8. Selecting a Location and Connecting Input Power (1-Phase and 3-Phase) Have only qualified persons make this installation. 1 Rating Label Supply correct input power . 18 in (457 mm) for airflow 1-Phase Primary Connection 3-Phase Primary Connection GND/PE Connect First GND/PE Connect First 1 L1 L2 L1 L2 L3[...]

  • Page 17

    OM-223 194 Page 13 3-9. Installing Drive Rolls and Wire Guide 1 Securing Screw 2 Inlet Wire Guide Loosen screw . Slide tip as close to drive rolls as possible without touching. T ighten screw . 3 Anti-W ear Guide Install guide as shown. 4 Drive Roll The drive roll consists of two dif fer- ent sized grooves. The stamped markings on the end surface o[...]

  • Page 18

    OM-223 194 Page 14 3-1 1. Threading W elding Wire and Adjusting Pressure Roll T ension 1 Wire Spool 2 Welding Wire 3 Inlet Wire Guide 4 Pressure Adjustment Knob 5 Drive Roll 6 Outlet Wire Guide 7 Gun Conduit Cable Lay gun cable out straight. 4 7 35 6 2 1 T ools Needed: 150 mm . Hold wire tightly to keep it from unraveling. WOOD Open pressure assemb[...]

  • Page 19

    OM-223 194 Page 15 Ref. 802 726-A 1 Side Panel 2 Latch 3 Cable Holder Press latch down to release and open door . 4 Holster (2) W rap cable around cable holder , and place gun nozzle into holster . 1 2 3-12. Using Gun/Cable Holder 3 4 3-13. Setting Gun Polarity for Wire T ype (Optional) 1 T erminal Cover Protects Polarity Change over ter- minals fr[...]

  • Page 20

    OM-223 194 Page 16 SECTION 4 − OPERA TION 4-1. Controls for Migmatic 271/273 1 2 3 4 5 6 7 8 1 V oltage Control T urn control clockwise to increase voltage. 2 2T/4T T rigger Hold Function Latching T orch T rigger 3 Power Switch 4 Work Lead Connection 5 MIG T orch Connection 6 Digital Display Function Button* 7 Wire Feed Speed Control T urn contro[...]

  • Page 21

    OM-223 194 Page 17 4-3. Controls for Migmatic 383 1 2 3 4 7 8 9 10 5 1 V oltage Control (Fine Adjust) T urn control clockwise to increase voltage. 2 V oltage Control (Coarse Adjust) T urn control clockwise to increase voltage. 3 2T/4T T rigger Hold Function Latching T orch T rigger 4 Power Switch 5 Work Lead Connection − High Inductance 6 Work Le[...]

  • Page 22

    OM-223 194 Page 18 SECTION 5 − MAINTENANCE &TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more often during severe conditions. 3 Months Replace unreadable labels Repair or replace cracked weld cable Clean and tighten weld terminals 6 Months Blow out or vacuum inside. OR Remove drive roll and carrie[...]

  • Page 23

    OM-223 194 Page 19 5-4. T roubleshooting T rouble Remedy No weld output; wire does not feed. Be sure line disconnect switch is On (see Section 3-8). Replace building line fuse or reset circuit breaker if open. Reset circuit breaker CB1 (see Section 5-2). Secure gun trigger connections. Check continuity of power switch S1 and replace if necessary . [...]

  • Page 24

    OM-223 194 Page 20 Notes[...]

  • Page 25

    OM-223 194 Page 21 SECTION 6 − ELECTRICAL DIAGRAMS 271 − Sept 27, 2005 W ARNING Electric Shock Hazard S Do not touch live electrical parts. S Disconnect input power or stop engine before servicing. S Do not operate with covers removed. S Have only qualified persons install, use, or service this unit. Figure 6-1. Circuit Diagram for Migmatic 271[...]

  • Page 26

    OM-223 194 Page 22 273 − Sept 27, 2006 W ARNING Electric Shock Hazard S Do not touch live electrical parts. S Disconnect input power or stop engine before servicing. S Do not operate with covers removed. S Have only qualified persons install, use, or service this unit. Figure 6-2. Circuit Diagram for Migmatic 273 (400 V AC)[...]

  • Page 27

    OM-223 194 Page 23 293 − Sept 27, 2006 W ARNING Electric Shock Hazard S Do not touch live electrical parts. S Disconnect input power or stop engine before servicing. S Do not operate with covers removed. S Have only qualified persons install, use, or service this unit. Figure 6-3. Circuit Diagram for Migmatic 293 (400 V AC)[...]

  • Page 28

    OM-223 194 Page 24 333 − Sept 27, 2005 W ARNING Electric Shock Hazard S Do not touch live electrical parts. S Disconnect input power or stop engine before servicing. S Do not operate with covers removed. S Have only qualified persons install, use, or service this unit. Figure 6-4. Circuit Diagram for Migmatic 333 (400 V AC)[...]

  • Page 29

    OM-223 194 Page 25 383 − Sept 27 2005 W ARNING Electric Shock Hazard S Do not touch live electrical parts. S Disconnect input power or stop engine before servicing. S Do not operate with covers removed. S Have only qualified persons install, use, or service this unit. Figure 6-5. Circuit Diagram for Migmatic 383 (400 V AC)[...]

  • Page 30

    OM-223 194 Page 26 SECTION 7 − P ARTS LIST Figure 7-1. W rapper Assembly , All Models[...]

  • Page 31

    OM-223 194 Page 27 Description Part No. Item No. Figure 7-1. W rapper Assembly , All Models Quantity 1 156034005 Catch, side panel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 156122058 Side Panel, hinged 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 32

    OM-223 194 Page 28 April 17, 2006 Figure 7-2. Main Assembly for Migmatic 271[...]

  • Page 33

    OM-223 194 Page 29 Description Part No. Dia. Mkgs. Item No. Figure 7-2. Main Assembly for Migmatic 271 Quantity 1 000197555 T ool tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V57052030 Euro Adapter Assembly 1 . . . . . . . . . . . . . . . . . .[...]

  • Page 34

    OM-223 194 Page 30 April 17, 2006 Figure 7-3. Main Assembly for Migmatic 273[...]

  • Page 35

    OM-223 194 Page 31 Description Part No. Dia. Mkgs. Item No. Figure 7-3. Main Assembly for Migmatic 273 Quantit y 1 000197555 T ool tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V57052030 Euro Adapter Assembly 1 . . . . . . . . . . . . . . . . . [...]

  • Page 36

    OM-223 194 Page 32 April 17, 2006 Figure 7-4. Main Assembly for Migmatic 293[...]

  • Page 37

    OM-223 194 Page 33 Description Part No. Dia. Mkgs. Item No. Figure 7-4. Main Assembly for Migmatic 293 Quantity 230/400 400 Model 1 000197555 T ool tray 1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V57052030 Euro Adapter Assembly 1 1 . . . . . . . .[...]

  • Page 38

    OM-223 194 Page 34 April 17, 2006 Figure 7-5. Main Assembly for Migmatic 333[...]

  • Page 39

    OM-223 194 Page 35 Description Part No. Dia. Mkgs. Item No. Figure 7-5. Main Assembly for Migmatic 333 Quantity 230/400 400 Model 1 000197555 T ool tray 1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V57052030 Euro Adapter Assembly 1 1 . . .[...]

  • Page 40

    OM-223 194 Page 36 April 17, 2006 Figure 7-6. Main Assembly for Migmatic 383[...]

  • Page 41

    OM-223 194 Page 37 Description Part No. Dia. Mkgs. Item No. Figure 7-6. Main Assembly for Migmatic 383 Quantity 230/400 400 Model 1 000197555 T ool tray 1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V57052030 Euro Adapter Assembly 1 1 . . .[...]

  • Page 42

    OM-223 194 Page 38 See T able 7-1 Drive Roll & Wire Guide Kits . Hardware is common and not available unless listed. Figure 7-7. Wire Drive and Gears (2 roll) Description Part No. Item No. Figure 7-7 Wire Drive and Gears Quantity 1 057010052 Motor , 24 VDC 185 rpm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 43

    OM-223 194 Page 39 See T able 7-2 Drive Roll & Wire Guide Kits . Hardware is common and not available unless listed. Figure 7-8. Wire Drive and Gears (4 roll) Description Part No. Item No. Figure 7-8 Wire Drive and Gears Quantity 1 057010051 Motor , 24 VDC 185 rpm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 44

    OM-223 194 Page 40 T able 7-1. Drive Roll And Wire Guide Kits (2 Roll Models) Base selection of drive rolls upon the following recommended usages: 1. V -Grooved rolls for hard wire. 2. U-Grooved rolls for soft and soft shelled cored wires. 3. U-Cogged rolls for extremely soft shelled wires (usually hard surfacing types). 4. V -Knurled rolls for har[...]

  • Page 45

    Notes[...]

  • Page 46

    Notes[...]

  • Page 47

    Effective January 1, 2006 This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. LIMITED W ARRANTY − Subject to the terms and conditions below , ITW W elding Products Italy S.r .l., warrants to its original retail purchaser that new Miller equipment sold after [...]

  • Page 48

    PRINTED IN USA © 2006 Miller Electric Mfg. Co. 1/06 I TW W elding Products Italy S.r.l. Via Privata Iseo, 6/E 20098 San Giuliano Milanese, Italy Phone: 39 (0) 2982901 Fax: 39 (0) 298290-203 email: miller@itw − welding.it Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to original customer.) Distributor Address Co[...]