Hobart 300 DC - Manuals

Hobart 300 DC – Manual in PDF format online.

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Manual

Manual Hobart 300 DC

Summary

Page 2 - From Hobart to You

Hobart Welders manufactures a full lineof welders and welding related equipment.For information on other quality Hobartproducts, contact your local Hobart distributorto receive the latest full line catalog orindividual catalog sheets. To locate your nearestdistributor or service agency call 1-877-Ho...

Page 3 - TABLE OF CONTENTS; WARNING

The following terms areused interchangeablythroughout this manual:TIG = GTAWStick = SMAWMig = GMAW TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5 - SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING; Symbol Usage; Arc Welding Hazards; ELECTRIC SHOCK can kill.

OM-318 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_5/97 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazardswith this procedure! The possible hazards are shown inthe adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. This ...

Page 7 - Additional Symbols For Installation, Operation, And Maintenance; Principal Safety Standards

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 nearcombustible surfaces. D Do not install unit near flammables. D Do not overload building wiring – be sure power supply system isproperly sized, ...

Page 8 - EMF Information

OM-318 Page 4 1-5. EMF Information Considerations About Welding And The Effects Of Low FrequencyElectric And Magnetic FieldsWelding current, as it flows through welding cables, will cause electro-magnetic fields. There has been and still is some concern about suchfields. However, after examining mor...

Page 9 - Signification des symboles; Dangers relatifs au soudage à l’arc; UN CHOC ÉLECTRIQUE peut tuer.

OM-318 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 5/97 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédureprésente des risques de danger ! Ceux-ci sont identifiéspar des symboles adjacents aux directives. Y Identifie un message...

Page 10 - LE BRUIT peut affecter l’ouïe.

OM-318 Page 6 Le rayonnement de l’arc du procédé de soudagegénère des rayons visibles et invisibles intenses(ultraviolets et infrarouges) susceptibles de provoquer des brûlures dans les yeux et sur la peau. Des étincelles sont projetées pendant le soudage. LES RAYONS DE L’ARC peuvent pro-voquer des ...

Page 13 - SECTION 2 – INSTALLATION; Specifications

OM-318 Page 9 SECTION 2 – INSTALLATION 2-1. Specifications Rated Weld Max. Input at Rated Load Output, 50/60 Hz, Single-Phase Model Weld Output Output Mode Open- Circuit Amperes At KVA KW Output Mode Voltage 200 V 220 V 230 V 380 V 415 V 460 V 575 V NEMA Class II (40): 200 Amperes, 28 Volts AC, 40% ...

Page 14 - Duty Cycle And Overheating

OM-318 Page 10 2-3. Duty Cycle And Overheating 5 Minutes Welding 5 Minutes Resting 4 Minutes Welding 6 Minutes Resting Duty Cycle is percentage of 10 min-utes that unit can weld at rated loadwithout overheating. If unit overheats, thermostat opens,output stops, and cooling fan runs.Wait fifteen minu...

Page 15 - Selecting A Location; Dimensions And Weights

OM-318 Page 11 2-4. Selecting A Location 1 Lifting Eye 2 Lifting Forks Use lifting eye or lifting forks tomove unit. If using lifting forks, extend forksbeyond 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 (Unde...

Page 18 - -10. Placing Jumper Links And Connecting Input Power

OM-318 Page 14 1 2-10. Placing Jumper Links And Connecting Input Power ST-130 173-K Check input voltage available atsite. 1 Jumper Link Label Check label – only one is on unit. 2 Jumper Links Move jumper links to match inputvoltage. 3 Input And GroundingConductors Select size and length usingSection...

Page 19 - SECTION 3 – OPERATION; Controls

OM-318 Page 15 SECTION 3 – OPERATION 3-1. Controls 1 Arc Force (Dig) Control For SMAW, control increases short-circuitamperage which allows the operator to usea very short arc length without sticking theelectrode. Set control at 0 for GTAW. When set at 0(zero), short circuit amperage at low arc volt...

Page 20 - SECTION 4 – MAINTENANCE & TROUBLESHOOTING; Routine Maintenance; Months

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 Weld Cables Replace Cracked Parts 14-Pin Cord Torch, Electrode Holder, Or Gun Cable Clean And Tighten Weld Termina...

Page 21 - Troubleshooting

OM-318 Page 17 4-3. Troubleshooting Trouble Remedy No weld output; unit completelyinoperative. 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 prope...

Page 22 - Notes

Page 23 - SECTION 5 – ELECTRICAL DIAGRAM

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

Page 24 - SECTION 6 – PARTS LIST

OM-318 Page 20 SECTION 6 – PARTS 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 andnot available unless listed. Figure 6-1. Main Assembly

Page 25 - Replace Coils At Factory Or Factory Authorized Service Station

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 31 - (Equipment with a serial number preface of “LA” or newer)

Warranty Questions? Call1-877-HOBART1for your localHobart distributor. hobart standard 7/00 ServiceYou always get the fast,reliable response youneed. Most replacementparts can be in yourhands in 24 hours. SupportNeed fast answers to thetough welding questions?Contact your distributor orcall 1-800-33...

Page 32 - Hobart Welding Products; Please complete and retain with your personal records.; Contact your Distributor for:; Resources Available; For technical assistance:

PRINTED IN USA  2000 Hobart Welding Products. 1/00 Hobart Welding Products An Illinois Tool Works Company600 West Main StreetTroy, OH 45373 USA For Technical Assistance:Call1-800-332-3281For Literature Or Nearest Dealer:Call 1-877-Hobart1 Model Name Serial/Style Number Purchase Date (Date which equ...