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Miller D-74 Boom w/Drives Manuel D'utilisation
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Miller D-74 Boom w/Drives Manuel D'utilisation

Miller D-74 Boom w/Drives Manuel D'utilisation

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Visit our website at
www.MillerWelds.com
D-74 Boom w/Drives
OM-252 643F
2015−02
Processes
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
(Gas-and Self-Shielding)
Submerged (SAW) Welding
Description
Wire Feeder
(Use with CV Power Sources)
8 ft, 12 ft, and 16 ft
File: MIG (GMAW)

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  • Page 1 2015−02 Processes MIG (GMAW) Welding Flux Cored (FCAW) Welding (Gas-and Self-Shielding) Submerged (SAW) Welding Description Wire Feeder (Use with CV Power Sources) D-74 Boom w/Drives 8 ft, 12 ft, and 16 ft File: MIG (GMAW) Visit our website at www.MillerWelds.com...
  • 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 5 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som 2013−09 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 body protection made from durable, flame−resistant material Welding produces fumes and gases. Breathing (leather, heavy cotton, wool). Body protection includes oil-free these fumes and gases can be hazardous to your clothing such as leather gloves, heavy shirt, cuffless trousers, high health.
  • Page 7 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can injure. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards 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_2013−09 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 D Ne pas raccorder plus d’une électrode ou plus d’un câble de D Avoir recours à des écrans protecteurs ou à des rideaux pour masse à une même borne de sortie de soudage. Débrancher le protéger les autres contre les rayonnements les éblouissements câble pour le procédé...
  • Page 11 DES PIECES DE METAL ou DES LES BOUTEILLES peuvent exploser si elles sont endommagées. SALETES peuvent provoquer des blessures dans les yeux. Les bouteilles de gaz comprimé contiennent du gaz sous haute pression. Si une bouteille est D Le soudage, l’écaillement, le passage de la endommagée, elle peut exploser.
  • Page 12 LES CHARGES ÉLECTROSTATI- RAYONNEMENT HAUTE QUES peuvent endommager les cir- FRÉQUENCE (H.F.) risque cuits imprimés. provoquer des interférences. D Établir la connexion avec la barrette de terre D Le rayonnement haute fréquence (H.F.) peut avant de manipuler des cartes ou des pièces. provoquer des interférences avec les équi- D Utiliser des pochettes et des boîtes antista- pements de radio−navigation et de com-...
  • Page 13 2-4. Proposition californienne 65 Avertissements Les équipements de soudage et de coupage produisent des Ce produit contient des produits chimiques, notamment du fumées et des gaz qui contiennent des produits chimiques plomb, dont l’État de Californie reconnaît qu’ils provoquent dont l’État de Californie reconnaît qu’ils provoquent des mal- des cancers, des malformations congénitales ou d’autres formations congénitales et, dans certains cas, des cancers.
  • Page 14 OM-252 643 Page 10...
  • Page 15 SECTION 3 − SPECIFICATIONS 3-1. Serial Number And Stock Number Location The serial number and rating information for this product is located on the rear panel. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual. 3-2.
  • Page 16 4-2. Installing Control Box And Adjusting Tilt Weld Control Bracket Screw Bracket and screws are installed onto bottom of control at factory. Swivel Loosen screws. Place control on swivel and slide forward. Tighten screws. Tilt Bracket Rear Pivot Screw Front Screw Loosen rear pivot screw.
  • Page 17 4-4. Installing Wire Guide Extension Wire Guide Fitting Bolt Monocoil Liner Wire Guide Extension Tighten bolt to secure liner in wire guide fitting. Do not overtighten bolt and crush liner. Repeat procedure for opposite side. Tools Needed: 3/8 in. 152 383-C OM-252 643 Page 13...
  • Page 18 4-5. Equipment Connection Diagram Welding Power Source Remote 14 Connection Negative (−) Weld Output Cable Positive (+) Weld Output Cable Workpiece Weld Control (Reference) Boom Swivel 10 Pipe Post And Base 11 Gas Hose 12 Gas Supply and Regulator (Customer Supplied) Shielding gas pressure not to exceed 100 PSI (689 kPa).
  • Page 19 4-6. Control Box Connections Interconnecting Cables Interconnecting Cable Receptacles 14-Pin Cord 803 197-C 4-7. 14-Pin Plug Information Pin* Pin Information 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.
  • Page 20 4-8. Removing Safety Collar And Adjusting Boom Locking Knob Tighten knob to prevent boom movement. Loosen knob to allow boom movement. Change knob po- sition to limit upward movement. Pull boom down slightly and re- move safety collar. Boom should balance in any position from hori- zontal to 60 degrees above hori- zontal.
  • Page 21 4-10. Installing And Threading Welding Wire Tools Needed: 3/8, 15/16 in. 3/16, 5/64 in. Install wire spool. Ad- just tension nut so wire is taut when wire feed stops. Pressure Adjust Pressure Indicator Scale Install wire guide. Pressure Adjust Drive Rolls Install drive rolls.
  • Page 22 SECTION 5 − MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Maintain more often Disconnect power during severe conditions. before maintaining. 3 Months Clean and Repair or tighten Replace replace weld unreadable cracked terminals. labels. weld cable. Replace Check Check gas Check gun cracked 14-pin cord.
  • Page 23 5-2. Troubleshooting Disconnect power before troubleshooting. Trouble Remedy Wire feeds, shielding gas flows, but elec- Check interconnecting cord connections. If secure, check cord for continuity and repair or replace (see trode wire is not energized. Sections 4-5 and 4-6). Wire feeder is on, meter(s) do not light Check and reset circuit breaker at welding power source.
  • Page 24 SECTION 6 − PARTS LIST Hardware is common and not available unless listed. 252 641-B Figure 6-1. Main Assembly OM-252 643 Page 20...
  • Page 25 Quantity Model Item Dia. Part Mkgs. Description Figure 6-1. Main Assembly ....201 319 . . . Cable, Interconnecting (Consisting Of) ....
  • Page 26 Hardware is common and not available unless listed. 142 306-L Figure 6-2. Boom Assembly OM-252 643 Page 22...
  • Page 27 Quantity Model Item Part Description Figure 6-2. Boom Assembly (Figure 6-1 Item 11) ... . 010 313 Pin, Cotter Hair .072 X 1.437 ......
  • Page 28 Hardware is common and not available unless listed. See Table 6-1 For Drive Roll & Wire Guide Kits 802 977-C Figure 6-3. Drive Assembly, Wire Quantity Model Item Dia. Part Mkgs. Description Figure 6-3. Drive Assembly, Wire (Figure 6-1 Items 24 and 28) .
  • Page 29 Quantity Model Item Dia. Part Mkgs. Description Figure 6-3. Drive Assembly, Wire (continued) . . . M1,101 ..201 231 . . . Motor, Gear 1/8HP 24VDC High Speed ... . .
  • Page 30 Hardware is common and not available unless listed. ST-081 760-C Figure 6-4. Support, Hub & Reel Item Part Description Quantity Figure 6-4. Support, Hub and Reel (Figure 6-1 Item 9) ..058 427 Ring, Retaining Spool .
  • Page 31 Table 6-1. Drive Roll And Wire Guide Kits OM-252 643 Page 27...
  • Page 33 Notes Start Your Professional Over 80,000 trained 400 Trade Square East, Troy, Ohio 45373 Welding Career Now! since 1930! 1-800-332-9448 www.welding.org...
  • Page 35 Effective January 1, 2015 (Equipment with a serial number preface of MF or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. Warranty Questions? LIMITED WARRANTY − Subject to the terms and conditions below, 6 Months —...
  • Page 36 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 2015 Miller Electric Mfg. Co. 2015−01...