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Hobart Welding Products 300 AC manual

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Table of contents for the manual

  • Page 1

    Cybershop 300 AC/DC Processes Description TIG (GT A W ) W elding Stick (SMA W) W elding Flux Cored (FCA W) W elding Arc Welding Power Source OM-318 126 418R December 2000 MIG (GMA W) W elding[...]

  • Page 2

    Hobart W elders manufactures a full line of welders and welding related equipment. For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual catalog sheets. T o locate your nearest distributor or service agency call 1-877-Hobart1. Thank you and congratulations on ch[...]

  • Page 3

    The following terms are used interchangeably throughout this manual: TIG = GT AW Stick = SMAW Mig = GMAW T ABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    [...]

  • Page 5

    OM-318 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_5/97 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. This group of symbols means W arning! W atch [...]

  • Page 6

    OM-318 Page 2 Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly of f from the weld. ARC RA YS can burn eyes and skin. D Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching (see ANSI Z49.1 and Z8[...]

  • Page 7

    OM-318 Page 3 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. F A[...]

  • Page 8

    OM-318 Page 4 1-5. EMF Information Considerations About W elding And The Effects 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 o[...]

  • Page 9

    OM-318 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE A V ANT UTILISA TION som _nd_fre 5/97 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette proc é dure pr é sente des risques de danger ! Ceux-ci sont identifi é s par des symboles adjacents aux directives. Y Identifie un message de s é curit é particulier . [...]

  • Page 10

    OM-318 Page 6 Le rayonnement de l ’ arc du proc é d é de soudage g é n è re des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provoquer des br û lures dans les yeux et sur la peau. Des é tincelles sont projet é es pendant le soudage. LES RA YONS DE L ’ ARC peuvent pro- voquer des br û lures dans le[...]

  • Page 11

    OM-318 Page 7 1-3. Dangers suppl é mentaires en relation avec l ’ installation, le fonctionnement et la maintenance Risque D ’ INCENDIE OU D ’ EXPLOSION. D Ne pas placer l ’ appareil sur , au-dessus ou à proxi- mit é de surfaces infllammables. D Ne pas installer l ’ appareil à proximit é de produits inflammables D Ne pas surcharger l[...]

  • Page 12

    OM-318 Page 8 1-4. Principales normes de s é curit é Safety in W elding and Cutting, norme ANSI Z49.1, de l ’ American W el- ding Society , 550 N.W . Lejeune Rd, Miami FL 33126 Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent of Documents, U.S. Government Printing Of fice, Washington, D.C. 20402. Recommended Safe Practice for the[...]

  • Page 13

    OM-318 Page 9 SECTION 2 – INST ALLA TION 2-1. Specifications Rated W eld Max. Input at Rated Load Output, 50/60 Hz, Single-Phase Model W eld Output Output Mode Open- Circuit Amperes At KV A KW Output Mode V oltage 200 V 220 V 230 V 380 V 415 V 460 V 575 V NEMA Class II (40): 200 Amperes, 28 V olts AC, 40% Duty Cycle AC 80 V olts AC 85 (4.6)* 74 ([...]

  • Page 14

    OM-318 Page 10 2-3. Duty Cycle And Overheating 5 Minutes W elding 5 Minutes Resting 4 Minutes W elding 6 Minutes Resting Duty Cycle is percentage of 10 m i n- utes that unit can weld at rated load without overheating. If unit overheats, thermostat opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or d[...]

  • Page 15

    OM-318 Page 1 1 2-4. Selecting A Location 1 Lifting Eye 2 Lifting Forks Use lifting eye or lifting forks to move unit. If using lifting forks, extend forks beyond opposite side of unit. OR 1 2 Movement ST-800 402 / ST -130 172-C 3 Location And Airflow 18 in 4 (460 mm) 18 in (460 mm) 3 Rating Label (Under Access Door) Use rating label to determine i[...]

  • Page 16

    OM-318 Page 12 2-6. W eld Output T erminals And Selecting Cable Sizes T otal Cable (Copper) Length In W eld Circuit Not Exceeding 100 ft (30 m) Or Less 150 ft (45 m) 200 ft (60 m) 250 ft (70 m) 300 ft (90 m) 350 ft (105 m) 400 ft (120 m) W eld Output T erminals W elding Amperes 10 – 60% Duty Cycle 60 – 100% Duty Cycle 10 – 100% Duty Cycle SMA[...]

  • Page 17

    OM-318 Page 13 2-8. 1 15 V olts AC Duplex Receptacle Ref. ST-152 973-A Y T urn Off power before con- necting to receptacle. 1 1 15 V AC Receptacle Receptacle is protected from over- load by circuit breaker CB1 (see Section 4-2). Power output is shared between this receptacle and the Remote 14 receptacle (see Section 2-7). 1 2-9. Electrical Service [...]

  • Page 18

    OM-318 Page 14 1 2-10. Placing Jumper Links And Connecting Input Power ST-130 173-K Check input voltage available at site. 1 Jumper Link Label Check label – only one is on unit. 2 Jumper Links Move jumper links to match input voltage. 3 Input And Grounding Conductors Select size and length using Section 2-9. 4 Line Disconnect Device Select type a[...]

  • Page 19

    OM-318 Page 15 SECTION 3 – OPERA TION 3-1. Controls 1 Arc For c e ( D i g ) C o n t r o l For SMA W , control increases short-circuit amperage which allows the operator to use a very short arc length without sticking the electrode. Set control at 0 for GT AW . When set at 0 (zero), short circuit amperage at low arc volt- age is the same as normal[...]

  • Page 20

    OM-318 Page 16 SECTION 4 – MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power before maintaining. 3 Months Replace Unreadable Labels Repair Or Replace Cracked W eld Cables Replace Cracked Parts 14-Pin Cord T orch, Electrode Holder , Or Gun Cable Clean And T ighten W eld T erminals 6 Months Blow Out Or V acuum Inside, Du[...]

  • Page 21

    OM-318 Page 17 4-3. T roubleshooting T rouble Remedy No weld output; unit completely inoperative. Place line disconnect switch in On position (see Section 2-10). Check and replace line fuse(s), if necessary (see Section 2-10). Check for proper input power connections (see Section 2-10). Check for proper jumper link position (see Section 2-10). No w[...]

  • Page 22

    OM-318 Page 18 Notes[...]

  • Page 23

    OM-318 Page 19 SECTION 5 – ELECTRICAL DIAGRAM SC-187 701 Figure 5-1. Circuit Diagram[...]

  • Page 24

    OM-318 Page 20 SECTION 6 – P ARTS LIST Fig 6-4 Fig 6-3 Fig 6-2 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 27 19 28 25 ST-130 166-L 24 6 . Hardware is common and not available unless listed. Figure 6-1. Main Assembly[...]

  • Page 25

    OM-318 Page 21 Replace Coils At Factory Or Factory Authorized Service Station Description Part No. Dia. Mkgs. Item No. Figure 6-1. Main Assembly Quantity 1 182 605 COVER, top 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Z1 197 582 REACTOR 1 . . . . . [...]

  • Page 26

    OM-318 Page 22 1 5 7 9 10 9 10 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 15 16 22 ST-130 167-F 11 12 13 2 3 4 6 8 . Hardware is common and not available unless listed. Figure 6-2. Panel, Front w/Components[...]

  • Page 27

    OM-318 Page 23 Description Quantity Part No. Dia. Mkgs. Item No. Figure 6-2. Panel, Front w/Components (Fig 6-1 Item 28) 1 169 136 PIN, handle 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 175 952 HANDLE, switch range 1 . . . . . . . . . . . . . . . [...]

  • Page 28

    OM-318 Page 24 Description Quantity Part No. Dia. Mkgs. 126 209 Item No. Figure 6-3. Rectifier , Si Diode (Fig 6-1 Item 27) 1 PLG53 1 15 092 CONNECTOR & SOCKETS 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SCR1-4 132 147 THYRISTOR, SCR 865A 300V 4 . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 29

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  • Page 31

    Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. hobart standard 7/00 Service Y o u 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 or call 1-800-332-3281. The expertise of the distrib[...]

  • Page 32

    PRINTED IN USA  2000 Hobart Welding Products. 1/00 Hoba rt We lding Pr oducts An I l li noi s T ool W orks Com pany 600 West Main St reet Troy , OH 45373 USA For Technical A ssistan ce: Call1-800-332-3281 For Li terat ure Or Neares t Dealer: Call 1-877-Hobart 1 Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to o[...]