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Miller 300740001 Mode D'emploi
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Miller 300740001 Mode D'emploi

Miller 300740001 Mode D'emploi

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OM-247 517F
2012−10
Processes
Automatic Welding
Description
Wire Feeder
74 Series
Drive Assembly
(Left and Right)
CE And Non-CE Models
File: Advanced Manufacturing Systems
Visit our website at
www.MillerWelds.com/ams

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  • Page 1 OM-247 517F 2012−10 Processes Automatic Welding Description Wire Feeder 74 Series Drive Assembly (Left and Right) CE And Non-CE Models File: Advanced Manufacturing Systems Visit our website at www.MillerWelds.com/ams...
  • Page 2 We 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.
  • Page 3 TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING ........1-1.
  • Page 4 DECLARATION OF CONFORMITY for European Community (CE marked) products. MILLER Electric Mfg. Co., 1635 Spencer Street, Appleton, WI 54914 U.S.A. declares that the product(s) identified in this declaration conform to the essential requirements and provisions of the stated Council Directive(s) and Standard(s).
  • Page 5 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som 2011−10 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions.
  • Page 6 D Remove stick electrode from holder or cut off welding wire at FUMES AND GASES can be hazardous. contact tip when not in use. D Wear oil-free protective garments such as leather gloves, heavy Welding produces fumes and gases. Breathing shirt, cuffless trousers, high shoes, and a cap.
  • Page 7 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. BATTERY EXPLOSION can injure. D Do not install or place unit on, over, or near D Do not use welder to charge batteries or jump combustible surfaces. start vehicles unless it has a battery charging D Do not install unit near flammables.
  • Page 8 1-4. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to the state of California to cause cancer, birth defects, or other cause birth defects and, in some cases, cancer.
  • Page 9 SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION fre_som_2011−10 Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité et au mode opératoire. 2-1.
  • Page 10 Il reste une TENSION DC NON NÉGLIGEABLE dans LE SOUDAGE peut provoquer un les sources de soudage onduleur UNE FOIS incendie ou une explosion. l’alimentation coupée. Le soudage effectué sur des conteneurs fermés tels D Arrêter les convertisseurs, débrancher le courant électrique et que des réservoirs, tambours ou des conduites peut décharger les condensateurs d’alimentation selon les instructions provoquer leur éclatement.
  • Page 11 ACCUMULATIONS LES BOUTEILLES peuvent exploser risquent de provoquer des blessures si elles sont endommagées. ou même la mort. Les bouteilles de gaz comprimé contiennent du gaz D Fermer l’alimentation du gaz comprimé en cas sous haute pression. Si une bouteille est endommagée, elle peut exploser.
  • Page 12 Les PIÈCES MOBILES peuvent RAYONNEMENT HAUTE causer des blessures. FRÉQUENCE (H.F.) risque provoquer des interférences. D Ne pas s’approcher des organes mobiles. D Ne pas s’approcher des points de coincement D Le rayonnement haute fréquence (H.F.) peut tels que des rouleaux de commande. provoquer des interférences avec les équi- pements de radio−navigation et de com- LES FILS DE SOUDAGE peuvent...
  • Page 13 2-5. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, Spectrum Way, Suite 100, Ontario, Canada L4W 5NS (phone: is available as a free download from the American Welding Society at 800-463-6727, website: www.csa-international.org). http://www.aws.org or purchased from Global Engineering Documents Safe Practice For Occupational And Educational Eye And Face Protec- (phone: 1-877-413-5184, website: www.global.ihs.com).
  • Page 14 OM-247 517 Page 10...
  • Page 15 SECTION 3 − DEFINITIONS 3-1. Additional Safety Symbols And Definitions Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 Do not discard product (where applicable) with general waste. Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection facility.
  • Page 16 SECTION 4 − INSTALLATION 4-1. Important Information Regarding CE Products (Sold Within The EU) A. Information On Electromagnetic Fields (EMF) This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding. This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
  • Page 17 4-6. Overall Dimensions And Mounting Hole Layout Inches Millimeters 9-1/8 231.8 11-1/2 11-1/2 Inches Millimeters 3-1/4 3-1/2 3/8 Dia. 9.5 Dia. 4 Holes 4 Holes Ref. 249 397-B OM-247 517 Page 13...
  • Page 18 4-7. Installing Wire Guides And Drive Rolls Tools Needed: 3/16 in. Open spring shaft carrier. Install inlet guide so groove is centered with When changing wire size or type, screw, and secure guide screw. Drive Roll check drive roll and guide size (see Table 7-1).
  • Page 19 4-8. Motor Mounting And Gun, Weld Cable, And Gas Connections Drive motor must be isolated from weld potential. Insulator Plate When mounting motor, place factory-supplied insulator plate under motor mounting bracket to provide isolation. Customer Supplied Gas Hose Shielding Gas Valve Fitting Requires hose fitting with 5/8-18 right-hand threads.
  • Page 20 4-10. Installing Welding Gun Gun Locking Tab Power Clamp Knob Gun Connection End Power Pin Groove Installing gun with Accu-Mate connection Loosen power clamp knob to allow power pin of gun to clear the gun locking tab. Push power pin into power clamp as far as possible to align the groove in the power pin of the gun with the gun locking tab.
  • Page 21 4-11. Installing And Threading Welding Wire Install wire guides and anti-wear guide. Install drive rolls. Pressure Indicator Pressure Scale Adjust Rear Pressure Rolls Adjust Front Rolls No Wire Slip Wire Slips NONCONDUCTIVE NONCONDUCTIVE SURFACE SURFACE Tools Needed: Drive Rolls 3/16, 5/64 in. Back Of Gun 15/16, 3/8 in.
  • Page 22 SECTION 5 − MAINTENANCE AND TROUBLESHOOTING 5-1. Routine Maintenance Maintain more often Disconnect power before maintaining. during severe conditions. n = Check Z = Change ~ = Clean l = Replace Reference * To be done by Factory Authorized Service Agent 3 Months l Unreadable Labels ~ Weld Terminals...
  • Page 23 5-3. Troubleshooting Trouble Remedy Electrode wire feeding stops or feeds er- Readjust hub tension and drive roll pressure. ratically during welding. Change to correct size drive roll. Clean or replace dirty or worn drive roll. Incorrect size or worn wire guides. Replace contact tip or liner.
  • Page 24 SECTION 6 − ELECTRICAL DIAGRAMS Figure 6-1. Circuit Diagram For Motor/Gas Box (Right Hand) 242 330-A Figure 6-2. Circuit Diagram For Motor/Gas Box (Left Hand) 254 168-A OM-247 517 Page 20...
  • Page 25 Figure 6-3. Circuit Diagram For MPa Plus Motor/Gas Box 250 821-A OM-247 517 Page 21...
  • Page 26 SECTION 7 − PARTS LIST See Table 7-1 For Hardware is common and not available unless listed. Drive Roll & Wire Guide Kits Dual Left Dual Right Dual Right / Single Right Figure 7-1. Drive Assembly, Wire OM-247 517 Page 22...
  • Page 27 31 32 40 (Left) 62 (Right) 251 255-C OM-247 517 Page 23...
  • Page 28 Item Dia. Part Description Quantity Mkgs. Figure 7-1. Drive Assembly, Wire ....010 668 Screw, Cap Stl Sch .250-20 X 1.500 ....... .
  • Page 29 ....203 423 ..Bushing, Strain Relief .300/.360 Id X .689 Sq Mtg ....
  • Page 30 Table 7-1. Drive Roll And Wire Guide Kits OM-247 517 Page 26...
  • Page 31 Effective January 1, 2012 (Equipment with a serial number preface of MC or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
  • Page 32 Contact the Delivering Carrier to: 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. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2012 Miller Electric Mfg. Co. 2012−01...

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