Related Manuals for Miller Electric D-74D
Summary of Contents for Miller Electric D-74D
- Page 1 D-74S, D-74D Visit our website at www.MillerWelds.com OM-1500-6 206 805H 2006−05 Processes MIG (GMAW) Welding Flux Cored (FCAW) Welding (Gas- And Self-Shielded) Description Wire Feeder File: MIG (GMAW)
- Page 2 ISO 9001:2000 Quality System Standard. particular model are also provided. 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.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage ............... . 1-2. - Page 4 Declaration of Conformity for European Community (CE) Products NOTE This information is provided for units with CE certification (see rating label on unit). Manufacturer: Miller Electric Mg. Co. 1635 W. Spencer St. Appleton, WI 54914 USA Phone: (920) 734-9821 European Contact Signature:...
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Page 5: Section 1 − Safety Precautions - Read Before Using
DC constant voltage (wire) welder, 2) a DC manual (stick) welder, or 3) an AC welder with reduced open-circuit volt- age. In most situations, use of a DC, constant voltage wire welder is recommended. And, do not work alone! D Disconnect input power or stop engine before installing or servicing this equipment. - Page 6 D Do not use welder to thaw frozen pipes. D Remove stick electrode from holder or cut off welding wire at contact tip when not in use.
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Page 7: Additional Symbols For Installation, Operation, And Maintenance
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: Principal Safety Standards
1-5. Principal Safety Standards Safety in Welding, 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 Welding and Cut- ting of Containers and Piping, American Welding Society Standard F4.1 from Global... -
Page 9: Section 2 − Consignes De Sécurité − À Lire Avant Utilisation
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION Y Avertissement : se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. Symboles utilisés Symbole graphique d’avertissement ! Attention ! Cette pro- cédure comporte des risques possibles ! Les dangers éven- tuels sont représentés par les symboles graphiques joints. - Page 10 LES RAYONS D’ARC peuvent entraî- ner des brûlures aux yeux et à la peau. Le rayonnement de l’arc du procédé de soudage génère des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provo- quer des brûlures dans les yeux et sur la peau. Des étincelles sont projetées pendant le soudage.
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Page 11: Autres Symboles Relatifs À L'installation, Au Fonctionnement Et À L'entretien De L'appareil
2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU D’EXPLO- SION. D Ne pas placer l’appareil sur, au-dessus ou à proximité de surfaces inflammables. D Ne pas installer l’appareil à proximité de produits inflammables. D Ne pas surcharger l’installation électrique −... -
Page 12: Principales Normes De Sécurité
2-5. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site In- ternet : www.global.ihs.com). Recommended Safe Practices for the Preparation for Welding and Cut- ting of Containers and Piping, American Welding Society Standard AWS F4.1 de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com). -
Page 13: Section 3 − Definitions
SECTION 3 − DEFINITIONS 3-1. Warning Label Definitions S-178 936 A. Warning! Watch Out! There are possible hazards as shown by the symbols. B. Drive rolls can injure fingers. C. Welding wire and drive parts are at welding voltage during operation −... -
Page 14: Rating Label For Ce Products
3-2. Rating Label For CE Products For label location see Section 5-3. 3-3. Symbols And Definitions Note Some symbols are found only on CE products. Amperes Degree Of Protection Set Up Purge Time Increase Primary Voltage OM-1500-6 Page 10 S/N: 50/60 50/60 IP 21... -
Page 15: Section 4 − Introduction
SECTION 4 − INTRODUCTION 4-1. Specifications Type of Input Welding Power Power Source Type 24 Volts AC Constant Voltage (CV) Single-Phase DC With 14-Pin And 10 Amperes Contactor Control 50/60 Hertz SECTION 5 − INSTALLATION 5-1. Site Selection Wire Feed Speed Wire Diameter Range Range... -
Page 16: Equipment Connection Diagrams
5-2. Equipment Connection Diagrams OM-1500-6 Page 12 Welding Power Source Contactor Control/Power Cord Positive (+) Weld Cable Negative (−) Weld Cable Workpiece Welding Gun Wire Feeder Gas Hose Gas Cylinder and Regulator (Customer Supplied) Shielding gas pressure not to exceed 100 PSI (689 kPa). 803 068... -
Page 17: Rear Panel Connections And Rotating Drive Assembly
5-3. Rear Panel Connections And Rotating Drive Assembly Tools Needed: 9/16, 5/8 in 3/16 in 14-Pin Control Cable - 10 Ft (3.0 m) Shielding Gas Valve Fittings Requires fitting with 5/8-18 right- hand threads. Connect customer- supplied gas hose. Weld Cable Terminal Jumper Weld Cable Weld Cable Drive Assembly... -
Page 18: 14-Pin Plug Information
5-4. 14-Pin Plug Information Pin* 24 volts ac with respect to socket G. Contact closure to A completes 24 volts ac contactor control circuit. Circuit common for 24 volts ac circuit. +10 volts dc input from power source to wire feeder with respect to socket D. Remote control circuit common. -
Page 19: Installing And Threading Welding Wire
5-7. Installing And Threading Welding Wire Install wire spool. Adjust tension nut so wire is taut when wire feed stops. Pressure Indicator Pressure Scale Adjust Rear Rolls For best wire feeding performance, be sure that the outlet cable has the proper size liner for the welding wire size being used. -
Page 20: Setting Internal Dip Switches
5-8. Setting Internal DIP Switches Right Side Motor Control Board PC1 Position Settings And Results For DIP Switch S1 On PC1 And PC101 Automatic Run-In (ON) Automatic Run-In (OFF) (Factory Default) S1-1 And S1-2 Off = Run-In speed is set using On = Run-In speed is approximately 1/2 weld wire potentiometer P1 located on Motor... -
Page 21: Optional Equipment Dip Switch Settings
5-9. Optional Equipment DIP Switch Settings PC60 Digital Meter Functions Standard Standard High Speed Motor Motor Motor Inches/Minute Meters/Minute Inches/Minute Remove wrapper. Digital Meter Board PC60 Meter Board Switch S2 Install wrapper when finished. High Speed Motor Meters/Minute Tools Needed: 1/4 in 803 069 OM-1500-6 Page 17... -
Page 22: Section 6 − Operation
SECTION 6 − OPERATION 6-1. Power Switch 6-2. Left/Right Select Switch 6-3. Jog/Purge Pressing the Jog/Purge switch allows the op- erator to jog wire without energizing the weld power or gas valve circuit. The unit also provides the ability to jog the wire feeder by means of the gun trigger, however, the contactor is energized for 3 seconds. -
Page 23: Trigger Hold Switch
6-4. Trigger Hold Switch 6-5. Voltage Control And Digital Meters Trigger Hold Switches Trigger hold allows the operator to weld without holding the gun trigger. To use the trigger hold function, place the trigger hold switch in the On position. The operator must hold the trig- ger for a minimum of 2 seconds, but not longer than 6 seconds be-... -
Page 24: Section 7 − Maintenance
SECTION 7 − MAINTENANCE 7-1. Routine Maintenance 3 Months Replace unreadable labels. Replace Check cracked 14-pin cord. parts. 6 Months Blow out or vacuum inside. During heavy service, clean monthly. OM-1500-6 Page 20 Y Disconnect power before maintaining. Clean and tighten weld terminals. -
Page 25: Diagnostics
7-2. Diagnostics Left Side Motor Control Left Side Motor Control Board PC101 Right Side Motor Control Right Side Motor Control Board PC1 Dual Board PC70 *Since blink On time and blink Off time are equal in a four-blink cycle, the four−blink sequence appears as constant blinking. Error Indications Error conditions are indicated by LED3 on PC1, PC101, PC70 or on display if meter op-... -
Page 26: Troubleshooting
7-3. Troubleshooting Trouble Wire feeds, shielding gas flows, but Check cable connections. Check cables for continuity, and repair or replace cables if necessary electrode wire is not energized. (see Section 5-3). Wire feeder is on, display does not light Check and reset circuit breaker at welding power source. up, motor does not run, gas valve and welding power source contactor do not pull in. - Page 27 Notes OM-1500-6 Page 23...
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Page 28: Section 8 − Electrical Diagram
SECTION 8 − ELECTRICAL DIAGRAM Figure 8-1. Circuit Diagram OM-1500-6 Page 24... - Page 29 204 716-B OM-1500-6 Page 25...
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Page 30: Section 9 − Parts List
SECTION 9 − PARTS LIST Hardware is common and not available unless listed. Fig.9−3 Fig.9−2 803 050-A Figure 9-1. Main Assembly OM-1500-6 Page 26... - Page 31 Item Part ....159 647 ....159 646 .
- Page 32 Circuit Card Assy, Master W/Program D-74 Hardware is common and not available unless listed. 803 049-C Quantity Model D-74S D-74D ....
- Page 33 . . . Potentiometer, cp std slot 1t 2. w 10k linear D-74S . . . Potentiometer, cermet std flat 3.75t 2 w 10k linear D-74D . . . Panel, Front .........
- Page 34 Quantity Model D-74S D-74D ..........
- Page 35 Screw, Cap Stl Hexhd .375-16 X 1.250 Quantity Model D-74S D-74D ......
- Page 36 Guide Intermediate Guide Inlet OM-1500-6 Page 32...
- Page 39 Warranty Questions? LIMITED WARRANTY − Subject to the terms and conditions Call below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to 1-800-4-A-MILLER its original retail purchaser that new Miller equipment sold after the effective date of this limited warranty is free of defects in for your local material and workmanship at the time it is shipped by Miller.
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Page 40: Options And Accessories
File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. 2006 Miller Electric Mfg. Co. 2006−01 Miller Electric Mfg. Co. An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA International Headquarters−USA...