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 - WARNING; TABLE OF CONTENTS
The following terms areused interchangeablythroughout this manual:TIG = GTAWStick = SMAW WARNING TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS 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-259 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 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-259 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-259 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-259 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 4/98 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-259 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-259 Page 9 SECTION 2 – INSTALLATION 2-1. Specifications Rated Open- Circuit Amperes Input at Rated Load Output, 50 or 60 Hz, Three-Phase Model Rated Welding Output Circuit Voltage Range DC 200 V 220 V 230 V 380 V 400 V 440 V 460 V 520 V 575 V KVA KW 250 Amp 250 A @ 35 Volts DC, 100% Duty Cycle 14...
Page 15 - Dimensions And Weights; Selecting A Location
OM-259 Page 11 2-4. Dimensions And Weights C C Dimensions E D Height 27-1/4 in (692 mm) 4 Holes Width 22-1/4 in (565 mm) Depth 28-1/4 in (717 mm) A 27-1/2 in (698 mm) A B 3/4 in (19 mm) A C 21-1/8 in (537 mm) D 1-1/8 in (29 mm) E 7/16 in (11 mm) Dia Weight ST-801 530 B 320 lb (145 kg) 2-5. Selecting...
Page 17 - Be sure connections are clean
OM-259 Page 13 2-8. Slope Selection (250 Ampere Model) Ref. ST-801 518-A 1 Slope Connection Label 2 Tapped Reactor AC-Z AndSlope Coils Tapped reactor AC-Z is factory con-nected to slope tap 8 which is suit-able for most GMAW applications. AC-Z controls the inductanceapplied to the weld current. Toin...
Page 18 - Inductance Selection (300 Ampere Models)
OM-259 Page 14 2-9. Inductance Selection (300 Ampere Models) 1 Stabilizer Z Tapped stabilizer Z is factoryconnected to the stabilizer tapwhich suits most GMAWapplications. Stabilizer Z controls the inductanceapplied to the weld current. To in-crease inductance and wet out theweld puddle, connect to ...
Page 19 - -10. Weld Output Terminals And Selecting Cable Sizes
OM-259 Page 15 2-10. Weld Output Terminals And Selecting Cable Sizes Y ARC WELDING can cause Electromagnetic Interference. To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor.Locate welding operation 100 meters from any sensitive...
Page 20 - -12. Connecting To 115 Volts AC Duplex Receptacle
OM-259 Page 16 2-12. Connecting To 115 Volts AC Duplex Receptacle Ref. ST-801 380-B 1 115 V 15 A AC ReceptacleRC9 Power is shared between RC9 andremote 14 receptacle RC8. 2 Circuit Breaker CB1 3 Circuit Breaker CB2 CB1 protects 115 volts ac portion ofRC8 and RC9 from overload. CB2 protects 24 volts ...
Page 21 - -14. Placing Jumper Links And Connecting Input Power
OM-259 Page 17 4 2-14. Placing Jumper Links And Connecting Input Power ST-801 382 Check input voltage available atsite. 1 Jumper Link Label Check label – only one is on unit. 2 Jumper Link Move jumper links to match inputvoltage, and label on unit. 3 Input And GroundingConductors See Section 2-13. 4...
Page 22 - SECTION 3 – OPERATION; Controls; SECTION 4 – MAINTENANCE & TROUBLESHOOTING; Routine Maintenance
OM-259 Page 18 SECTION 3 – OPERATION 3-1. Controls Ref. ST-801 380-B 1 Power Switch 2 Pilot Light Light is on when power is On. 3 Preset Indicator Light When light is on, the voltmeterdisplays preset welding voltage asselected by the Voltage Adjustmentcontrol. When light is off, the voltmeterdisplay...
Page 23 - Troubleshooting
OM-259 Page 19 4-2. Troubleshooting Trouble Remedy Completely inoperative; fan does not run. Place line disconnect switch in the On position. Check and replace open line fuse(s) (see Section 2-13). Check for proper jumper link positions (see Section 2-14). Check for proper input connections (see Sec...
Page 24 - SECTION 5 – ELECTRICAL DIAGRAMS; Figure 5-1. Circuit Diagram For 250 Ampere Model
OM-259 Page 20 SECTION 5 – ELECTRICAL DIAGRAMS SB-183 958-A Figure 5-1. Circuit Diagram For 250 Ampere Model For Primary Circuit Diagram Portion,refer to Circuit Diagram located insidethe wrapper of the welding power source. SB-183 959 Figure 5-2. Circuit Diagram For 300 Ampere Models
Page 25 - Notes
Page 26 - Figure
OM-259 Page 22 SECTION 6 – P ARTS LIST Figure 6-1. Complete Assembly 801 383-F 1 2 3 4 5 6 7 11 12 13 14 15 16 Fig 6-3–17 18 19 1 20 22 23 24 25 26 27 21 Fig 6-2–28 30 31 32 29 33 34 35 36 8 10 9 37 38
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...
