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Miller Electric OM-227 398D manual

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  • Page 1

    300 Ampere (Air) Push-Pull Welding Gun XR - A l u m a - P r o (Air And W ater-Cooled Guns) Processes Description MIG (GMA W) W elding OM-227 398D 2007 − 12 Semi-Automatic, Air/W ater- Cooled, MIG (GMAW) W elding Gun ™ File: MIG (GMA W) V isit our website at www.MillerWelds.com 400 Ampere (W ater) Push-Pull W elding Gun[...]

  • 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[...]

  • Page 3

    T ABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS FOR GMA W WELDING GUNS − READ BEFORE USING 1 . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Arc W elding Hazards 1 . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    dec_wire_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[...]

  • Page 5

    OM-227 398 Page 1 SECTION 1 − SAFETY PRECAUTIONS FOR GMA W WELDING GUNS − READ BEFORE USING SR7_2007 − 04 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[...]

  • Page 6

    OM-227 398 Page 2 1-3. EMF Information Considerations About W elding And The Effects Of Low Frequency Electric And Magnetic Fields W elding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields. However , after examining more than 500 studies spanning 17 years of[...]

  • Page 7

    OM-227 398 Page 3 SECTION 2 − DEFINITIONS 1 1.1 1.2 1.3 3 3.1 3.2 3.3 4 4.1 + 2 2.1 2.2 + + 56 + 2.3 S-178 936 A. W arning! Watch Out! There are possible hazards as shown by the symbols. B. Drive rolls can injure fingers. C. W elding wire and drive parts are at welding voltage during operation − keep hands and metal objects clear . 1 Electric s[...]

  • Page 8

    OM-227 398 Page 4 2-2. Manufacturer ’ s Rating Label For CE Products Only 229 109-A 2-3. 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 disposing at a designated collec- tion facility . Contact your local recycling of[...]

  • Page 9

    OM-227 398 Page 5 SECTION 3 − INTRODUCTION 3-1. Specifications Model W elding Output Range Electrode Wire Diameter Capacity Wire Feed Speed Range Net W eight (T orch Only) XR-Aluma-Pro Gun (Air Cooled) 300 A at 100% Duty Cycle with 15, 25 or 35 ft (4.6 or 7.6 m) gun .030 T o 1/16 in (0.8 T o 1.6 mm) aluminum wire 70 T o 900 ipm (1.8 T o 23 mpm) 2[...]

  • Page 10

    OM-227 398 Page 6 SECTION 4 − INST ALLA TION . Be sure that contact tip, liner , and drive rolls are correct for wire size and type. See Parts List to change parts as needed. 4-1. Connections With A Constant Current (CC), Constant V oltage (CV) Or Constant Current/Constant V oltage (CC/CV) W elding Power Source Having A 14-Socket Re- ceptacle 804[...]

  • Page 11

    OM-227 398 Page 7 4-2. XR-W ater-Cooled Gun Connections Ref. 801 577-A / 805 106-A . T urn on coolant supply before welding or gun will be dam- aged. 1 Gun Control Cable Insert plug into Gun Control receptacle, and tighten threaded collar . 2 Gun Connector 3 Gun Securing Knob 4 Gun Connector Block Loosen gun securing knob, and insert gun connector [...]

  • Page 12

    OM-227 398 Page 8 4-3. Millermatic 350P W ater Cooled Gun Connections Ref. 804 945-A . T urn on coolant supply before welding or gun will be damaged. 1 Coolant Supply 2 Millermatic 350P 3 Gun Control Cable Insert plug into gun control receptacle and tighten threaded collar . 4 Water In Hose Connect to coolant supply with supplied coupler and water [...]

  • Page 13

    OM-227 398 Page 9 4-4. Threading Welding Wire For Aluma-Pro Gun And Millermatic 350P 1 Wire Spool 2 Welding Wire 3 Inlet Wire Guide 4 Drive Roll 5 Intermediate Wire Guide 6 Outlet Wire Guide 7 Pressure Adjustment Knob 8 Gun Conduit Cable Lay gun cable out straight. T ools Needed: 6 in (150 mm) . Hold wire tightly to keep it from unraveling. Open pr[...]

  • Page 14

    OM-227 398 Page 10 4-5. Threading W elding Wire Through XR-Control Feeder Ref. 802 193-A T ools Needed: 2 1 1 Cable Assembly Lay cable assembly out straight. 2 Jog Switch Push Jog switch up to feed wire through cable assembly . . Hold wire tightly to keep it from unraveling. 4-6. Adjusting T ension At Feeder Ref. 802 193-A T ools Needed: Pull and h[...]

  • Page 15

    OM-227 398 Page 1 1 4-7. 10-Pin Plug Information 10 Pin* Pin Information A Electrode sense lead B Motor Common E F G T rigger F D J G C Motor 0 to +24 volts dc with respect to pin B G C I H D T rigger H B A E Wire speed Ref. +9 volts dc H Wire speed com F Wire speed 0 to +9 volts dc with respect to pin H J Gun sensing resistor with respect to pin H[...]

  • Page 16

    OM-227 398 Page 12 ! Welding wire is electrically live when gun trigger is used to jog wire. . Refer to Section 4-4 for instructions on feeding wire through feeder. 4-9. Threading W elding Wire Through Gun Ref. 804 544-B / 804 545-B T ools Needed: Lay gun cable out straight. Press Jog switch until about 6 in (152 mm) of wire is sticking out end of [...]

  • Page 17

    OM-227 398 Page 13 SECTION 5 − OPERA TION 5-1. Gun Controls 1 T rigger Press trigger to energize welding power source contactor (if applicable), start shielding gas flow , and begin wire feed. Switches inside the wire feeder can be set to provide timed shielding gas preflow and postflow when trigger is pressed and released. When this feature is t[...]

  • Page 18

    OM-227 398 Page 14 5-3. Shielding Gas Ref. 151 666-F / 804 545-B 1 Shielding Gas Cylinder 2 V alve 3 Gun T rigger Open valve on cylinder just before welding. Gun trigger turns weld output and gas flow on and of f (see Section 5-1 ). Close valve on cylinder when finished welding. 3 1 2 5-4. Coolant Supply For W ater-Cooled Models Only Ref. 150 755-A[...]

  • Page 19

    OM-227 398 Page 15 5-5. Gun Drive Assembly Maintenance For An XR-Aluma-Pro Gun Ref. 804 544-B 1 Lever Arm Using lever arm open pressure roll with bearing as shown. Retract wire onto spool. 2 Drive Roll Use wire brush to clean drive roll. Install drive roll with hex opening down tow ard shaft hex, and secure with screw . 3 Pressure Roll Thread weldi[...]

  • Page 20

    OM-227 398 Page 16 5-6. Replacing Head T ube Liner In XR-Aluma-Pro Guns Ref. 804 544-B . T urn OFF coolant supply before removing head tube on water -cooled gun. The standard head tube liner will ac- commodate wire diameters from .030-.035 wire size. When changing wire size, change control box drive roll, idler and head tube liner with appropriate [...]

  • Page 21

    OM-227 398 Page 17 Ref. 804 546-A 5-8. Replacing The Gun Liner On XR-Aluma-Pro Guns ! T urn Off welding power source and wire feeder . 1 Leather Cover 2 Liner 3 Liner Lock Allen Screw 4 Liner Guide Reducer 5 Wire Guide Cone 6 Wire Collet Guide 7 Power Pin Lay gun cable out straight. Remove short leather cover to access liner assembly . Loosen liner[...]

  • Page 22

    OM-227 398 Page 18 SECTION 6 − MAINTENANCE & TROUBLESHOOTING 6-1. Routine Maintenance For Aluminum Push/Pull Guns ! Disconnect power before maintaining. n = Check ~ = Clean l = Replace Daily n~ Head T ube Liner and Drive Casting (see Section 5-6) W eekly n~ Drive Roll Every Spool of Wire Or n~ Nozzle / Contact T ip ~ Gun Casing n~ Gun Liner ([...]

  • Page 23

    OM-227 398 Page 19 Ref. 804 546-A 6-2. Cleaning The Gun Liner On XR-Aluma-Pro Guns ! T urn Off welding power source and wire feeder . Lay gun cable out straight. 1 Leather Cover Remove leather cover to access liner as- sembly . 2 Liner Guide Reducer 3 Liner Lock Allen Head Screw 4 Power Pin 5 Air Nozzle Loosen liner lock allen head screw (located n[...]

  • Page 24

    OM-227 398 Page 20 6-3. T roubleshooting T able ! Disconnect power before troubleshooting. T rouble Remedy No wire feed at gun, feeder not operat- ing Check motor or brake solenoid Reset circuit breaker in feeder/control box. See feeder/control owner’s manual. ing. C heck motor or brake solenoid. Replace trigger-switch and test operation. Check t[...]

  • Page 25

    OM-227 398 Page 21 SECTION 7 − ELECTRICAL DIAGRAMS 228 669-B Figure 7-1. Circuit Diagram For XR-Aluma-Pro Gun Notes[...]

  • Page 26

    OM-227 398 Page 22 SECTION 8 − P ARTS LIST . Hardware is common and not available unless listed. 2 3 4 32 31 14 33 37 35 38 33 14 15 39 42 43 44 45 16 19 20 46 8 12 41 40 21 36 34 1 Figure 8-1. Exploded V iew Of XR-A Aluma-Pro Gun[...]

  • Page 27

    OM-227 398 Page 23 Ref. 804 51 1-B 6 10 11 7 8 7 9 27 7 28 30 29 7 26 22 24 25 23 13 14 15 16 17 19 18 20 21 5 24 12 32 Description Figure 8-1 . Exploded View Of XR-A Aluma-Pro Gun Item No. Part No. Quantity 1 231 517 Kit, Head T ube Assy (W ater) Long 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 28

    OM-227 398 Page 24 Description Figure 8-1. Exploded View Of XR-A Aluma-Pro Gun (Continued) Item No. Part No. Quantity 10 229 887 Liner , Replacement 15 Ft 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 229 891 Liner , Replacement 25 Ft 1 . . . . . . . . . . . . . . . . . [...]

  • Page 29

    OM-227 398 Page 25 . Hardware is common and not available unless listed. 804 706-A 1 2 3 4 5 10 6 9 7 8 Figure 8-2. (Water) Head T ube Assembly Of Aluma-Pro Gun Item No. Part No. Quantity Description Figure 8-2. (W ater) Head T ube Assembly Of Aluma-Pro Gun (Figure 8-1 Item 1 231 517 Kit, Head T ube Assy W ater Aluma − Pro (Long) (Includes) 1 . .[...]

  • Page 30

    OM-227 398 Page 26 . Hardware is common and not available unless listed. 804 705-A 1 2 3 4 5 7 8 6 Figure 8-3. (Air) Head T ube Assembly Of Aluma-Pro Gun Item No. Part No. Quantity Description Figure 8-3. (Air) Head T ube Assembly Of Aluma-Pro Gun (Figure 8-1 Item 2) 231 518 Kit, Head T ube Assy Air (Long) (Includes) 1 . . . . . . . . . . . . . . .[...]

  • Page 31

    OM-227 398 Page 27 SECTION 9 − P ARTS LIST INCLUDING CONSUMABLES Item Number 12 3 4 5 Ref. 803 909-A / 805 046-A / 805 047-A / 805 048-A XR-Aluma-Pro 4” Head T ub e Outer W ater Long (#230 420) Inner Rear (#227 416) Outer Air Short (#227 159) Outer Air Long (#229 673) (#230 679) (#229 670) (#230 678) Air (Short) (#231 519) XR-Aluma-Pro 6” Hea[...]

  • Page 32

    OM-227 398 Page 28 T able 9-2. Heavy Duty FasTip t Contact Tips* 2 ♦ 206 185 .030 in (0.8 mm) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ♦ 206 186 .035 in (0.9 mm) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 33

    Notes SOCKET/WRENCH SELECTION T ABLE (U.S. ST ANDARD) SOCKET/WRENCH SELECTION T ABLE (METRIC) Specifications Socket or Wrench Size Specifications Socket or Wrench Size Bolt Diameter Decimal Equivalent Bolt Nut Bolt Diameter U.S. Decimal Equivalent Bolt Nut 1/4 in .250 in 3/8 in 7/16 in 6 mm .2362 in 10 mm 10 mm 5/16 in .3125 in 1/2 in 9/16 in 8 mm [...]

  • Page 34

    Notes 16 Gauge (.063 in) 22 Gauge (.031 in) 24 Gauge (.025 in) 20 Gauge (.037 in) 18 Gauge (.050 in) 14 Gauge (.078 in) 1/8 in (.125 in) 3/16 in (.188 in) 1/4 in (.25 in) 5/16 in (.313 in) 3/8 in (.375 in) 1/2 in (.5 in) MA TERIAL THICKNESS REFERENCE CHART[...]

  • Page 35

    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[...]

  • Page 36

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