Red-D-Arc Welderentals EX300 230/460 Technical Manual
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Red-D-Arc Welderentals EX300 230/460 Technical Manual

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TM-2208E
July 2000
Eff. w/Serial Number KG049063
Processes
Multiprocess Welding
Description
Arc Welding Power Source
EX300
(230/460 and 460/575
Volt Models)
CC/CV and CC Models

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Summary of Contents for Red-D-Arc Welderentals EX300 230/460

  • Page 1 TM-2208E July 2000 Eff. w/Serial Number KG049063 Processes Multiprocess Welding Description Arc Welding Power Source EX300 (230/460 and 460/575 Volt Models) CC/CV and CC Models...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS WARNING SECTION 1 – SAFETY PRECAUTIONS FOR SERVICING ........This product, when used 1-1.

  • Page 3: Section 1 - Safety Precautions For Servicing

    SECTION 1 – SAFETY PRECAUTIONS FOR SERVICING safety_stm1 4/95 1-1. Symbol Usage Y Marks a special safety message. Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Means NOTE; not safety related. This group of symbols means Warning! Watch Out! possible ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.

  • Page 4: Emf Information

    FALLING EQUIPMENT cause MOVING PARTS can cause injury. serious personal injury and equipment 1. Keep away from moving parts. damage. 2. Keep away from pinch points such as drive rolls. 1. Use lifting eye to lift unit only, NOT running gear, OVERUSE can cause OVERHEATED gas cylinders, or any other accessories.

  • Page 5: Section 2 - Introduction

    SECTION 2 – INTRODUCTION 2-1. Specifications RMS Amps Input at Rated Load Output, 60 Hz 3-Phase at NEMA Load Voltage Amperage Max. Open- Voltages and Class I Rating Rated Output at Range in Range in Circuit 60% Duty Cycle 230 V 460 V 575 V CV Mode...

  • Page 6: Volt-Ampere Curves

    2-3. Volt-Ampere Curves Volt-ampere curves show mini- mum and maximum voltage and A. CC Mode amperage output capabilities of unit. Curves of other settings fall be- tween curves shown. ARC CONTROL B. CV Mode va_curve1 4/95 – SA-178 652 / SA-178 653 TM-2208 Page 4 XMT 304...

  • Page 7: Section 3 - Installation

    SECTION 3 – INSTALLATION 3-1. Selecting a Location 24 in (610 mm) Dimensions And Weight 76 lb (34.6 kg) 17 in (432 mm) 12-1/2 in (318 mm) Lifting Handles Movement Use handles to lift unit. Hand Cart Y Do not move or operate unit Use cart or similar device to move where it could tip.

  • Page 8: Weld Output Receptacles And Selecting Cable Sizes

    3-2. Weld Output Receptacles And Selecting Cable Sizes Total Cable (Copper) Length In Weld Circuit Not Exceeding 150 ft 200 ft 250 ft 300 ft 350 ft 400 ft 100 ft (30 m) Or Less (45 m) (60 m) (70 m) (90 m) (105 m) (120 m)

  • Page 9: Optional 115 Volts Ac Duplex Receptacle And Circuit Breakers

    3-4. Optional 115 Volts AC Duplex Receptacle And Circuit Breakers 115 V 10 A AC Receptacle Power is shared between duplex receptacle and Remote 14 recep- tacle (see Section 3-3). Circuit Breaker CB1 Circuit Breaker CB2 CB1 protects duplex receptacle and 115 volts ac portion of Remote 14 receptacle from overload.

  • Page 10: Connecting Input Power

    3-6. Connecting Input Power Check input voltage available at site. The Auto-Link circuitry in this unit automatically links the power source to the primary voltage being applied. 230/460 unit can be connected to either 230 or 460 VAC input power. A 460/575 model can be connected to either 460 or 575 VAC input power.
  • Page 11 Notes XMT 304 TM-2208 Page 9...

  • Page 12: Section 4 - Operation

    SECTION 4 – OPERATION 4-1. Front Panel Controls For CC/CV Model Power Switch best results, place Inductance/Dig control in wards minimum, short-circuit amperage at the maximum position. low arc voltage is the same as normal weld- The fan motor is thermostatically ing amperage.

  • Page 13: Meter Functions For Cc/Cv Model

    4-2. Meter Functions For CC/CV Model NOTE The meters display the actual weld output values for approximately three seconds after the arc is broken. Mode Meter Reading At Idle Meter Reading While Welding Scratch 80.0 10.3 Start TIG Actual Volts (OCV) Preset Amps Actual Volts Actual Amps...

  • Page 14: Mode Switch Settings For Cc Model

    4-4. Front Panel Controls For CC Model Power Switch V/A Control switch. Dig Control For Air Carbon Arc (CAC-A) cutting and The fan motor is thermostatically When set towards minimum, short-circuit gouging, place switch in one of the Stick amperage at low arc voltage is the same as controlled and only runs when cooling is positions.

  • Page 15: Meter Functions For Cc Model

    4-5. Meter Functions For CC Model NOTE The meters display the actual weld output values for approximately three seconds after the arc is broken. Mode Meter Reading At Idle Meter Reading While Welding Scratch 80.0 10.3 Start TIG Actual Volts (OCV) Preset Amps Actual Volts Actual Amps...

  • Page 16: Section 5 - Theory Of Operation

    SECTION 5 – THEORY OF OPERATION Theory of Operation is shown for the 230/460 volt models. Theory for other models is similar. Input Inductors Capacitors Power Switch S1 L1, L3, L4 C3, C4 Provides on/off control of welding power source. Input Rectifier SR1 Changes the ac line input power to SCR/...
  • Page 17 15 Voltage/Amperage Adjustment Control R2 (CC/CV Models) Or Amperage Adjustment Control R2 (CC Models) Selects weld output voltage or am- perage level. Setting defines maxi- mum output when remote voltage and/or amperage control is used, Current Transformer and Mode switch S3 is in a CC Output Main position.

  • Page 18: Section 6 - Pre-Power Checklist

    SECTION 6 – PRE-POWER CHECKLIST 6-1. Checking Unit Before Applying Power See Section 7-4 for test points and values and Section 10 for parts location. Y Discharge input capacitors according to Section 8-3 and be sure voltage is near zero before touching any parts. Y Before troubleshooting or applying power to unit, complete following checks to avoid causing further damage.

  • Page 19: Input Rectifier Sr1

    6-3. Input Rectifier SR1 Y Read and follow safety information in Section 6-1 before proceeding. Resistance values are based on in-circuit measurements. Visually inspect SR1 for damage. Check 6 diodes (diode test). Check from each ac terminal to the positive (+) terminal and from each ac terminal to the negative (–) terminal.

  • Page 20: Igbt Modules Pm1, Pm2

    6-5. IGBT Modules PM1, PM2 Y Read and follow safety information in Section 6-1 before proceeding. It is not necessary to remove interconnecting board PC2 to test the IGBT’s unless input ca- pacitor C3 or C4 is shorted. Visually inspect PM1 and PM2 for damage.

  • Page 21: Diodes

    6-6. Diodes D1, D2, D3, D4 Y Read and follow safety information in Section 6-1 before proceeding. Check D1 and D2 on PC2 for 2000 ohms ±10% in 230/460 volt models or 400 ohms ±10% in 460/575 volt models (ohms position). Prior to Serial No.

  • Page 22: Contactors W1, W2 (230/460 V Models Only)

    6-7. Contactors W1, W2 (230/460 V Models Only) Y Read and follow safety information in Section 6-1 before proceeding. Check normally-open contacts of W1 and W2 to be sure contacts are not stuck shut (ohms position). Normally-Open Normally-Open Contacts Of 460 V Contacts Of 230 V Input Contactor W1 Auto-Link Contactor W2...

  • Page 23: Section 7 - Troubleshooting

    SECTION 7 – TROUBLESHOOTING 7-1. Troubleshooting Table See Section 7-4 and Section 7-6 for test points and values and Section 10 for parts location. Use MILLER Testing Booklet (Part No. 150 853) when servicing this unit. Trouble Remedy No weld output; unit completely Follow pre-power checklist (see Section 6).
  • Page 24 Trouble Remedy Limited output and low open-circuit Follow pre-power checklist (see Section 6). voltage. Check incoming power for correct voltage (see Section 3-5). Replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-6). Check for proper input and output connections. If using remote amperage/voltage control, check position of Amperage/Voltage control R2.

  • Page 25: Voltmeter/Ammeter Help Displays Prior To Kg177169

    7-2. Voltmeter/Ammeter Help Displays Prior to KG177169* *Prior to KG177342 w/Auxiliary Power Help 1 Display Indicates a malfunction in the pri- mary power circuit. If this display is shown, check tank capacitor C1 HE.L P–1 (see Section 6-4) and control board PC1 (see Section 7-9).

  • Page 26: Voltmeter/Ammeter Help Displays Effective With Kg177169

    7-3. Voltmeter/Ammeter Help Displays Effective with KG177169* *Effective w/KG177342 w/Auxiliary Power HE.L P–0 HE.L P–5 HE.L P–1 HE.L P–6 HE.L P–2 HE.L P–7 HE.L P–3 HE.L P–8 HE.L P–4 HE.L P–9 fan to cool it (see Section 2-2). Operation will Help 7 Display All directions are in reference to the front continue when the unit has cooled.
  • Page 27 Notes XMT 304 TM-2208 Page 25...

  • Page 28: Troubleshooting Circuit Diagram For 230/460 Volt Models Prior To Serial No. Kk104771

    7-4. Troubleshooting Circuit Diagram For 230/460 Volt Models Prior To Serial No. KK104771 Y Discharge input capacitors according to Section 8-3, and be No calibration available for voltmeter V or ammeter A. sure voltage is near zero before touching any parts. Ground Current Sense Control Test Equipment Needed:...
  • Page 29 Resistance Values ± Tolerance – 10% unless specified Turn Off unit and disconnect input power before checking resistance Voltage Readings ± R1 thru R6 Less than 1 ohm Tolerance – 10% unless specified R7, R8 7.5 ohms Reference – single arrow: to circuit common (lead 42) unless noted;...

  • Page 30: Troubleshooting Circuit Diagram For 230/460 Volt Models Effective With Serial No. Kk104771

    7-5. Troubleshooting Circuit Diagram For 230/460 Volt Models With Serial Nos. Following KK104771 Y Discharge input capacitors according to Section 8-3, and be No calibration available for voltmeter V or ammeter A. sure voltage is near zero before touching any parts. Ground Current Sense Control Relay CR2...
  • Page 31 Resistance Values ± Tolerance – 10% unless specified Turn Off unit and disconnect input power before checking resistance Voltage Readings ± R1 thru R6 Less than 1 ohm Tolerance – 10% unless specified R7, R8 7.5 ohms Reference – single arrow: to circuit See Section 7-9 common (lead 42) unless noted;...

  • Page 32: Troubleshooting Circuit Diagram For 460/575 Volt Models Prior To Serial No. Kk104771

    7-6. Troubleshooting Circuit Diagram for 460/575 Volt Models Prior To Serial No. KK104771 Y Discharge input capacitors according to Section 8-3, and be sure voltage is near zero before touching any parts. No calibration available for voltmeter V or ammeter A. Test Equipment Needed: 460 V Auto-Link...
  • Page 33 Resistance Values ± Tolerance – 10% unless specified Turn Off unit and disconnect input power Voltage Readings before checking resistance ± R1 thru R6 Less than 1 ohm Tolerance – 10% unless specified See Section Reference – to circuit common 7-9 for PC2 (lead 42) unless noted information...

  • Page 34: Troubleshooting Circuit Diagram For 460/575 Volt Models Effective With Serial No. Kk104771

    7-7. Troubleshooting Circuit Diagram for 460/575 Volt Models With Serial Nos. Following KK104771 Y Discharge input capacitors according to Section 8-3, and be sure voltage is near zero before touching any parts. No calibration available for voltmeter V or ammeter A. Test Equipment Needed: 460 V Auto-Link...
  • Page 35 Resistance Values ± Tolerance – 10% unless specified Turn Off unit and disconnect input power Voltage Readings before checking resistance See Section 7-9 for PC2 ± R1 thru R6 Less than 1 ohm Tolerance – 10% unless specified information Reference – single arrow: to circuit common (lead 42) unless noted;...

  • Page 36: Waveforms For Sections 7-4 Thru 7-7

    7-8. Waveforms For Sections 7-4 Thru 7-7 10 µs 20 V 10 µs 20 V A. CC Or CV Mode, DC Open-Circuit Voltage B. CC Or CV Mode, 25 Volts DC, 200 Amperes (Resistive Load) Test Equipment Needed: TM-2208 Page 34 XMT 304...

  • Page 37: Control Board Pc1 Testing Information

    7-9. Control Board PC1 Testing Information (All Models – Use with Section 7-10) Y Discharge input capacitors according to Section 8-3, and be sure voltage is near zero before touching any parts. Be sure plugs are secure before testing. See Section 7-10 for specific values during testing.

  • Page 38: Control Board Pc1 Test Point Values

    7-10. Control Board PC1 Test Point Values (All Models) ± a) Tolerance – 10% unless specified PC1 Voltage Readings b) Reference – to circuit common (lead 42) unless noted Receptacle Value +24 volts dc output Not used +24 volts dc output +1 volt dc output per 10 volts dc of weld output –24 volts dc output +15 volts dc output when HELP 1 screen is displayed, 0 volts dc with normal conditions...
  • Page 39 Receptacle Value –15 volts dc output (Prior to KK104771) Not used (Effective w/KK104771) +1 volts dc input per 100 amperes of weld output (Effective w/KK104771) Circuit common (Effective w/KK104771) Circuit common (Effective w/KK104771) Circuit common (Effective w/KK104771) +15 volts dc output (Effective w/KK104771) –15 volts dc output (Effective w/KK104771) Do not measure –...
  • Page 40 Receptacle Value +28 volts dc output with respect to pin RC8-2 when fan is turned On –28 volts dc output with respect to pin RC8-1 when fan is turned On Negative (–) voltage feedback input with respect to pin RC9-3 Not used Positive (+) voltage feedback input with respect to pin RC9-1 TM-2208 Page 38...

  • Page 41: Display Board Pc3 Testing Information

    7-11. Display Board PC3 Testing Information (All Models – Use with Section 7-12) Y Discharge input capacitors accord- Receptacle RC4 Voltage/Amperage Adjustment Control ing to Section 8-3, and be sure volt- R2 (CC/CV Model) Or Amperage Connection point for thermistor RT1. age is near zero before touching any Adjustment Control R2 (CC Model) Receptacle RC5...

  • Page 42: Display Board Pc3 Test Point Values

    7-12. Display Board PC3 Test Point Values (All Models) ± a) Tolerance – 10% unless specified PC3 Voltage Readings b) Reference – to circuit common (lead 42) unless noted Receptacle Value +24 volts dc input Not used +24 volts dc input +1 volt dc input per 10 volts dc of weld output –24 volts dc input +15 volts dc input when Help 1 screen is displayed, 0 volts dc during normal conditions...
  • Page 43 Receptacle Value Prior to Serial No. KG177169, voltage feedback input with respect to pin RC2-6, same as positive (+) weld output receptacle. Effective with Serial No. KG177169, CC/CV select (+10 to +35 volts dc with remote input indicates CV mode; 0 volts dc input indicates CC mode). Circuit common For CC/CV models, in MIG mode: +10 volts dc output;...

  • Page 44: Interconnecting Board Pc2 Testing Information

    7-13. Interconnecting Board PC2 Testing Information (All Models) Y Discharge input capacitors according to Section 8-3, and be sure voltage is near zero before touching any parts. Be sure to use torque values in- dicated on PC2 when servi- cing. Use component-to-heat sink torque value of 26 in-lb when servicing...

  • Page 45: Section 8 - Maintenance

    SECTION 8 – MAINTENANCE 8-1. Routine Maintenance Y Disconnect power Maintain more often before maintaining. during severe conditions. 3 Months Repair Or Replace Replace Cracked Replace Damaged Or Torch Body Cracked Unreadable Cables Labels Repair Or Replace Cracked Cables And Cords Clean Tighten Weld Connections...

  • Page 46: Measuring Input Capacitor Voltage

    8-3. Measuring Input Capacitor Voltage Y Significant DC voltage can remain on capacitors after unit is Off. Always check ca- pacitors as shown to be sure they have discharged before working on unit. Turn Off welding power source and disconnect input power. Remove case.

  • Page 47: Checking Bus Voltage Imbalance

    8-4. Checking Bus Voltage Imbalance NOTE Check for a bus voltage imbalance whenever any of the following components are replaced: capacitors C3 or C4; control board PC1; interconnecting board PC2; IGBT power modules PM1 or PM2; or input rectifier SR1. Y This procedure requires an energized unit.

  • Page 48: Section 9 - Electrical Diagrams

    SECTION 9 – ELECTRICAL DIAGRAMS The circuits in this manual can be used for troubleshooting, but there might be minor circuit differences from your machine. Use circuit inside machine case or contact factory for actual circuit, if needed. The following is a list of all diagrams for models covered by this manual. To order a copy, proceed as follows: Know unit Model and Serial or Style Number.
  • Page 49 Model Serial Or Style Number Circuit Diagram Wiring Diagram Circuit Board PC3 KH353059 thru KH526179 183 324-A♦♦ (All CC Models) KH526180 thru KJ188991 187 103♦♦ KJ188992 and following 190 706 Circuit Board PC3 KG049063 thru KG177168 178 843♦♦ (All CC/CV, 230/460 Volt Models) (thru KG177341 w/aux.
  • Page 50 *Thru KG177341 w/auxiliary power SC-175 014-A Figure 9-1. Circuit for XMT 304 (230/460 V) Eff. w/KG049063 – KG177168* TM-2208 Page 48 XMT 304...
  • Page 51 *Effective w/KG177342 w/auxiliary power SC-181 837-B Figure 9-2. Circuit for XMT 304 (230/460 V) Eff. w/KG177169* Thru KK104770 XMT 304 TM-2208 Page 49...
  • Page 52 194 588 Figure 9-3. Circuit for XMT 304 (230/460 V) Eff. w/KK104771 Thru KK266149 TM-2208 Page 50 XMT 304...
  • Page 53 197 550 Figure 9-4. Circuit for XMT 304 (230/460 V) Eff. w/KK266150 XMT 304 TM-2208 Page 51...
  • Page 54 Notes TM-2208 Page 52 XMT 304...
  • Page 55 SC-180 958-C Figure 9-5. Circuit for XMT 304 (460/575 V) Eff. w/KG145520 Thru KK104770 XMT 304 TM-2208 Page 53...
  • Page 56 194 589 Figure 9-6. Circuit for XMT 304 (460/575 V) Eff. w/KK104771 Thru KK266149 TM-2208 Page 54 XMT 304...
  • Page 57 197 553 Figure 9-7. Circuit for XMT 304 (460/575 V) Eff. w/KK266150 XMT 304 TM-2208 Page 55...
  • Page 58 Figure 9-8. Diagram for XMT 304 (230/460 V) Eff. w/KK104771 TM-2208 Page 56 XMT 304...
  • Page 59 195 876 XMT 304 TM-2208 Page 57...
  • Page 60 Figure 9-9. Diagram for XMT 304 (460/575 V) Eff. w/KK104770 TM-2208 Page 58 XMT 304...
  • Page 61 195 877 XMT 304 TM-2208 Page 59...
  • Page 62 Figure 9-10. Circuit for PC1 (230/460 V) Eff. w/KH526181 (CC) or KH523149 (CC/CV) Thru KK104770 (Part 1 of 3) TM-2208 Page 60 XMT 304...
  • Page 63 185 507-A (1 of 3) XMT 304 TM-2208 Page 61...
  • Page 64 Figure 9-11. Circuit for PC1 (230/460 V) Eff. w/KH526181 (CC) or KH523149 (CC/CV) Thru KK104770 (Part 2 of 3) TM-2208 Page 62 XMT 304...
  • Page 65 185 507-A (2 of 3) XMT 304 TM-2208 Page 63...
  • Page 66 Figure 9-12. Circuit for PC1 (230/460 V) Eff. w/KH526181 (CC) or KH523149 (CC/CV) Thru KK104770 (Part 3 of 3) TM-2208 Page 64 XMT 304...
  • Page 67 185 507-A (3 of 3) XMT 304 TM-2208 Page 65...
  • Page 68 Figure 9-13. Circuit for PC1 (230/460 V) Eff. w/KK104771 (Part 1 of 3) TM-2208 Page 66 XMT 304...
  • Page 69 193 755 (1 of 3) XMT 304 TM-2208 Page 67...
  • Page 70 Figure 9-14. Circuit for PC1 (230/460 V) Eff. w/KK104771 (Part 2 of 3) TM-2208 Page 68 XMT 304...
  • Page 71 193 755 (2 of 3) XMT 304 TM-2208 Page 69...
  • Page 72 Figure 9-15. Circuit for PC1 (230/460 V) Eff. w/KK104771 (Part 3 of 3) TM-2208 Page 70 XMT 304...
  • Page 73 193 755 (3 of 3) XMT 304 TM-2208 Page 71...
  • Page 74 Figure 9-16. Circuit for PC1 (460/575 V) Eff. w/KH499631 Thru KK104770 (Part 1 of 3) TM-2208 Page 72 XMT 304...
  • Page 75 188 657-A (1 of 3) XMT 304 TM-2208 Page 73...
  • Page 76 Figure 9-17. Circuit for PC1 (460/575 V) Eff. w/KH499631 Thru KK104770 (Part 2 of 3) TM-2208 Page 74 XMT 304...
  • Page 77 188 657-A (2 of 3) XMT 304 TM-2208 Page 75...
  • Page 78 Figure 9-18. Circuit for PC1 (460/575 V) Eff. w/KH499631 Thru KK104770 (Part 3 of 3) TM-2208 Page 76 XMT 304...
  • Page 79 188 657-A (3 of 3) XMT 304 TM-2208 Page 77...
  • Page 80 Figure 9-19. Circuit for PC1 (460/575 V) Eff. w/KK104771 (Part 1 of 3) TM-2208 Page 78 XMT 304...
  • Page 81 193 761 (1 of 3) XMT 304 TM-2208 Page 79...
  • Page 82 Figure 9-20. Circuit for PC1 (460/575 V) Eff. w/KK104771 (Part 2 of 3) TM-2208 Page 80 XMT 304...
  • Page 83 193 761 (2 of 3) XMT 304 TM-2208 Page 81...
  • Page 84 Figure 9-21. Circuit for PC1 (460/575 V) Eff. w/KK104771 (Part 3 of 3) TM-2208 Page 82 XMT 304...
  • Page 85 193 761 (3 of 3) XMT 304 TM-2208 Page 83...
  • Page 86 Figure 9-22. Circuit for PC3 (CC) Eff. w/KJ188992 TM-2208 Page 84 XMT 304...
  • Page 87 190 706 XMT 304 TM-2208 Page 85...
  • Page 88 Figure 9-23. Circuit for PC3 (CC/CV) Eff. w/KJ188992 TM-2208 Page 86 XMT 304...
  • Page 89 190 703 XMT 304 TM-2208 Page 87...
  • Page 90 195 589 Figure 9-24. Circuit for PC2 Eff. w/KK266150 188 015 Figure 9-25. Circuit for PC4, PC5 Eff. w/KH450176 TM-2208 Page 88 XMT 304...
  • Page 91 TM-2208E July 2000 Eff. w/Serial Number KG049063 Processes Multiprocess Welding Description Arc Welding Power Source XMT 304 (230/460 And 460/575 Volt Models) Eff w/KG049063 Thru KK104770 For OM-2208 (175 493) Revisions * Thru J Visit our website at www.Miller- Welds.com...

  • Page 92: Section 10 - Parts List For Kg049063 Thru Kk104770

    SECTION 10 – PARTS LIST FOR KG049063 THRU KK104770 Hardware is common and not available unless listed. ST-801 428-B Figure 10-1. Parts Assembly TM-2208 Page 90 XMT 304...
  • Page 93 Eff w/KG049063 THRU KK104770 Item Dia. Part Mkgs. Description Quantity Figure 10-1. Parts Assembly ....+175 148 WRAPPER ........... .

  • Page 94: Section 11 - Parts List For Kk104771 And Following

    Eff w/KG049063 THRU KK104770 Item Dia. Part Mkgs. Description Quantity Figure 10-1. Parts Assembly (Continued) ....174 982 TRANSFORMER, control 230/460 (Prior to KH523149) ....
  • Page 95 Eff w/KG049063 THRU KK104770 Item Dia. Part Mkgs. Description Quantity Figure 10-1. Parts Assembly (Continued) ... . . 190 700 CIRCUIT CARD, front panel display 460/575 (CC/CV model) ..
  • Page 96 Notes OM-2223 Page 94...
  • Page 97 TM-2208E July 2000 Eff. w/Serial Number KG049063 Processes Multiprocess Welding Description Arc Welding Power Source XMT 304 (230/460 And 460/575 Volt Models) Eff w/KK104771 And Following For OM-2208 (175 493) Revision K And Following Visit our website at www.Miller- Welds.com...
  • Page 98 SECTION 11 – PARTS LIST FOR KK104771 AND FOLLOWING Hardware is common and not available unless listed. ST-801 428-C Figure 11-1. Parts Assembly TM-2208 Page 96 XMT 304...
  • Page 99 Eff w/KK104771 And Following Item Dia. Part Mkgs. Description Quantity Figure 11-1 . Parts Assembly ....+175 148 WRAPPER ........... .
  • Page 100 Eff w/KK104771 And Following Item Dia. Part Mkgs. Description Quantity Figure 11-1. Parts Assembly (Continued) ......CIRCUIT CARD, interconnect (230/460) +185 090 (Prior to KK266150;...
  • Page 101 Eff w/KK104771 And Following Notes XMT 304 TM-2208 Page 99...
  • Page 102 Eff w/KK104771 And Following Notes TM-2208 Page 100 XMT 304...
  • Page 104 Call 1-800-4-A- MILLER for your local Miller distribu- tor. Miller Electric Mfg. Co. An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA International Headquarters–USA Phone: 920-735-4505 USA & Canada FAX: 920-735-4134 International FAX: 920-735-4125 European Headquarters – United Kingdom Phone: 44 (0) 1204-593493 FAX: 44 (0) 1204-598066...

This manual is also suitable for:

Ex300 460/575

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