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Miller Electric DB1812R manual

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Table of contents for the manual

  • Page 1

    Visit our website at www.MillerWelds.com Processes Description TIG T orch OM-1603 199 528C 1/2005 TIG (GT A W ) W elding DB1812R And DB1825R Diamondback Series GT A W T orches ESP AÑOL FRANÇAIS ENGLISH[...]

  • Page 2

    T ABLE OF CONTENTS SECTION 1 −SAFETY PRECAUTIONS FOR GT A W T ORCHES − READ BEFORE USING 1 . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. GT A W T orch Hazards 1 . . . . . . . . . . . . . . . . . [...]

  • Page 3

    ENGLISH OM-1603 Page 1 SECTION 1 −SAFETY PRECAUTIONS FOR GT A W TORCHES − READ BEFORE USING SR6_1/00 1-1. Symbol Usage Means W arning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. This group of symbols means Warning! W atch Out! Possible ELECTRIC SHOCK and HOT P AR TS hazard[...]

  • Page 4

    OM-1603 Page 2 EMF INFORMA TION Considerations About W elding And The Ef fects Of Low Frequency Electric A n d M a g netic 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 5

    ENGLISH OM-1603 Page 3 SECTION 2 − SPECIFICA TIONS 2-1. Specifications Model DB1812R DB1825R Ampere Rating 350 Amps W/Argon Gas @ 100% Duty Cycle DCEN, ACHF Cooling Method W ater Cooling Requirements 1.1 quart/minute (1.0 liter/minute) T ungsten Size .020 Thru 5/32 in (0.5 Thru 4.0 mm) Cable Options 12-1/2 ft (3.8 m) One-Piece High−Flex 25 ft ([...]

  • Page 6

    OM-1603 Page 4 SECTION 3 − INST ALLA TION 3-1. Required T orch Parts And T orch Assembly Ref. 802 676 Assembling T orch Parts 8 7 5 4 3 6 1 2 13 14 15 10 12 11 1 Cup 2 Collet Body 3 Heat Shield 4 Backcap Insulator 5 Collet 6 O-Ring 7 Backcap 8 T orch Body 9 Handle 10 Power Cable 1 1 W ater Hose 12 Gas Hose 13 Power Cable Adapter 14 International [...]

  • Page 7

    ENGLISH OM-1603 Page 5 3-3. Connecting T orch A. Connecting T orch When Using A Freestanding Coolant System  T urn Off welding power source and cooling system power before in- stalling torch. 1 W elding Power Source 2 Regulator/Flowmeter 3 Gas Cylinder 4 Gas Hose (Customer Supplied) Obtain correct length with 5/8-18 right-hand fittings. 5 T orch[...]

  • Page 8

    OM-1603 Page 6 B. Connecting T orch T o A Dynasty t 300 DX Or Maxstar  300 DX TIGRunner t Unit 803 31 1 T ools Needed: 5/8, 7/8, 1-1/8 in 2 3 1 10 5 6 8 11 4 7 9 12  T urn Off welding power source power before installing torch. 1 Gas Hose With 5/8-18 Right- Hand Fittings (Customer Sup- plied) Connections: 2 Regulator/Flowmeter 3 Gas Cylinder [...]

  • Page 9

    ENGLISH OM-1603 Page 7 SECTION 4 − MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance  Disconnect torch before maintaining. 40 Hours Replace unreadable labels. Repair or replace cracked weld cable. Clean and tighten weld terminals. Replace cracked parts T orch Body T orch Cable 4-2. T roubleshooting Before using troubleshooting table, [...]

  • Page 10

    OM-1603 Page 8 T rouble Remedy W andering arc Shield weld zone from drafts. Reduce gas flow rate. Select proper size and type tungsten. Properly prepare tungsten according to Section 5. When using AC, check welding power source High Frequency control setting, and increase setting if nec- essary . Y ellow powder or smoke on cup. Use proper type shie[...]

  • Page 11

    ENGLISH OM-1603 Page 9 SECTION 5 − SELECTING AND PREP ARING TUNGSTEN ELECTRODE FOR DC OR AC WELDING ac/dc_gtaw 2/2004  Whenever possible and practical, use DC weld output instead of AC weld output. 5-1. Selecting T ungsten Electrode ( Wear Clean gloves T o Prevent Contamination Of T ungsten ) Amperage Range - Gas T ype ♦ - Polarity Electrode[...]

  • Page 12

    OM-1603 Page 10 5-2. Preparing T ungsten Electrode For W elding  Grinding the tungsten electrode produces dust and flying sparks which can cause injury and start fires. Use local exhaust (forced ventilation) at the grinder or wear an approved respirator . Read MSDS for safety infor- mation. Consider using tungsten containing ceria, lanthana, or [...]

  • Page 13

    ENGLISH OM-1603 Page 1 1 6 -2. T orch Movement During Welding ST-162 002-B T ungsten Without Filler Rod T ungsten With Filler Rod Form pool Tilt torch Move torch to front of pool. Repeat process. 75 ° 75 ° W elding direction Form pool Tilt torch Add filler metal Move torch to front of pool. Repeat process. Remove rod W elding direction 15 ° 6-3.[...]

  • Page 14

    OM-1603 Page 12 SECTION 7 − P ARTS LIST Ref. 802 676-A 21 17 16 18 20 19 15 4 3 2 1 8 7 6 5 12 9 13 14 11 10 Figure 7-1. Complete T orch Assembly[...]

  • Page 15

    ENGLISH OM-1603 Page 13 Description Quantity Model No. Stock No. Item No. Model Figure 7-1. Complete T orch Assembly DB1825R DB1812R 1 57Y02 BACK CAP , long (consisting of) 1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ♦ 57Y04 BACK CAP , button 1 1 . . . . . . . . . . . . .[...]

  • Page 16

    OM-1603 Page 14 Description Quantity Model No. Stock No. Item No. Model Figure 7-1. Complete T orch Assembly (continued) DB1825R DB1812R 21 ♦ 198 314 HOSE, water side adapter international style (included w/190 219) 1 1 . . . . . . . . . . . . . . . . . . . . . . ♦ AK3C ACCESSORY KIT (included in DTP kit) 1 . . . . . . . . . . . . . . . . . . .[...]

  • Page 17

    ENGLISH Notes[...]

  • Page 18

    Notes[...]

  • Page 19

    Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 1/05 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 expertise o[...]

  • Page 20

    PRINTED IN USA  2005 Miller Electric Mfg. Co. 1/05 Miller Elect ric Mfg. Co. An I l li noi s T ool Works Company 1635 W es t Spenc er S treet Applet on, W I 5 4914 USA International He adquarters− USA USA Phone: 920-735-4505 Aut o-At tended USA & C anada F A X: 920-735-4134 Int ernational F A X : 9 20-735-4125 European Headqua rt ers − U[...]