Hobart OM-353 - Manuals

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Manual Hobart OM-353

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 = SMAW 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-353 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-353 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-353 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-353 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-353 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 – DEFINITIONS; Warning Label Definitions

OM-353 Page 9 SECTION 2 – DEFINITIONS 2-1. Warning Label Definitions S-176 254-A 1 1.1 1.2 1.3 3 3.1 3.2 3.3 4 4.1 + 2 2.1 2.2 + + 5 6 + 2.3 Warning! Watch Out! There arepossible hazards as shown by thesymbols. 1 Electric shock from weldingelectrode or wiring can kill. 1.1 Wear dry insulating gloves...

Page 14 - Rating Label For CE Products

OM-353 Page 10 2-2. Rating Label For CE Products S-178 813-A ISO/IEC 974-1 X 25% 60% 100% 7A/10.2V 310A/22.4V U 0 = 80V I 2 310A 200A 155A U 2 22.4V 18V 16.2V X 25% 60% 100% 5A/20.2V 310A/32.4V U 0 = 80V I 2 310A 200A 155A U 2 32.4V 28V 26.2V IP 21S U 1 = 220 I 1max = 117.2A I 1Eff = 59A 1 1 1 50 Hz...

Page 15 - Symbols And Definitions; NOTE; IP

OM-353 Page 11 2-3. Symbols And Definitions Some symbols are found only on CE products. NOTE A Amperes Panel–Local Gas Tungsten Arc Welding (GTAW) Shielded Metal Arc Welding (SMAW) V Volts Do Not Switch While Welding Arc Force (DIG) Spot Timer Output Circuit Breaker Remote Temperature Protective Ear...

Page 16 - SECTION 3 – INSTALLATION; Specifications

OM-353 Page 12 SECTION 3 – INSTALLATION 3-1. Specifications Amperes Input at AC Balanced Rated Load Output, 50/60 Hz, Single-Phase Rated Welding Output PFC** 200 V 230 V 460 V 575 V KVA KW Amp Range Max OCV IP Rating NEMA Class II (40) – 250 No PFC 106 (4.6*) 92 (4*) 46 (2*) 37 (1.6*) 21 (0.89*) 11....

Page 17 - Duty Cycle And Overheating

OM-353 Page 13 3-3. Duty Cycle And Overheating 4 Minutes Welding 6 Minutes Resting 6 Minutes Welding 4 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, light goes on (CEmodels only), and coo...

Page 18 - Selecting A Location; Dimensions And Weights

OM-353 Page 14 3-4. 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. 3 Rating Label (Non CE ModelsOnly) 4 Rating Label (CE ModelsOnly, See Section 2-2) Use rating label to determine inpu...

Page 20 - Remote 14 Receptacle; 15 Volts AC Duplex Receptacle And Shielding Gas Connections

OM-353 Page 16 3-8. Remote 14 Receptacle Socket* Socket Information A 24 volts ac. B Contact closure to A completes 24 volts ac contactor controlcircuit. C Command reference; 0 to +10 volts dc output to remote control. A J B K I D Remote control circuit common. C L N H D M G F A E 0 to +10 volts dc ...

Page 22 - -11. Placing Jumper Links And Connecting Input Power

OM-353 Page 18 1 3-11. Placing Jumper Links And Connecting Input Power ST-117 263-K Check input voltage available atsite. 1 Jumper Link Label Check label inside your unit–only one label is on unit. Y Only make connections forthe voltages shown on the la-bel inside your unit. Do notmake connections f...

Page 23 - SECTION 4 – OPERATION; Controls

OM-353 Page 19 SECTION 4 – OPERATION 4-1. Controls Ref. ST-117 264-F / Ref. ST-154 795-C 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 Ammeter See Section 4-3. 2 Voltmeter See Section 4-3. 3 High Frequency Switch See Section 4-11. 4 Output (Contactor) Switch See Section 4-8. 5 Spot Time Switch And Control(O...

Page 24 - Meters

OM-353 Page 20 4-2. Output Selector Switch Ref. ST-181 675-A 1 Output Selector Switch Y Do not use AC output indamp areas, if movement isconfined, or if there is dan-ger of falling. Use AC outputONLY if required for thewelding process, and thenuse a remote control. Y Do not change position ofswitch ...

Page 26 - AC Balance Control

OM-353 Page 22 4-6. AC Balance Control Ref. S-0795-A 1 AC Balance Control Balance Control (AC GTAW): Control changes the AC outputsquare wave. Rotating the controltowards 10 provides deeper pene-tration. Rotating the control towards0 provides more cleaning action ofthe workpiece. When the control is...

Page 27 - Amperage Adjustment Controls

OM-353 Page 23 4-7. Amperage Adjustment Controls 1 Amperage Adjustment Control Use control to adjust amperage,and preset amperage on ammeter(see Section 4-3). This control maybe adjusted while welding. For remote amperage control,front panel control setting is themaximum amperage available. Forexamp...

Page 28 - Arc Controls

OM-353 Page 24 4-9. Arc Controls 1 Arc Control (Dig) For AC And DC SMAW Welding When set at 0, short-circuit amper-age at low arc voltage is the sameas normal welding amperage. When setting is increased, short-circuit amperage at low arc voltageincreases. Set at 0 for GTAW welding. 2 Arc Control Swi...

Page 30 - SECTION 5 – MAINTENANCE & TROUBLESHOOTING; Routine Maintenance; Months

OM-353 Page 26 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. 3 Months Replace Unreadable Labels Clean And Tighten Weld Terminals Repair Or Replace Cracked Weld Cables Adjust Spark Gaps Replace Cracked Parts 14-Pin Cord Gas Hose Torch Ca...

Page 33 - Circuit Diagram

Page 34 - Welding Processes Using HF; Sources Of HF Radiation From Incorrect Installation

OM-353 Page 30 SECTION 6 – HIGH FREQUENCY (HF) 6-1. Welding Processes Using HF high_freq1 7/95 – S-0693 1 HF Voltage GTAW – helps arc jump air gapbetween torch and workpiece and/or stabilize the arc. SAW – helps arc reach workpiecethrough flux granules. 2 Flux 1 2 1 Gas Tungsten Arc Welding (GTAW) S...

Page 35 - Correct Installation

OM-353 Page 31 6-3. Correct Installation 1 HF Source (Welder With Built-In HF OrSeparate HF Unit) Ground metal machine case, work outputterminal, line disconnect device, inputsupply, and worktable. 2 Welding Zone And Centerpoint A circle 50 ft (15 m) from centerpointbetween HF source and welding tor...

Page 36 - SECTION 7 – PARTS LIST

OM-353 Page 32 SECTION 7 – PARTS LIST Figure 7-1. Main Assembly ST-120 135-R . Hardware is common andnot available unless listed. 1 2 – Fig.7 – 3 3 4 5 6 7 – Fig.7 – 5 8 9 10 11 12 13 30 31 14 15 16 17 – Fig.7 – 4 18 19 20 21 22 23 24 25 26 27 28 29 – Fig.7 – 2

Page 37 - Replace Coils at Factory or Authorized Factory Service Station

OM-353 Page 33 Replace Coils at Factory or Authorized Factory Service Station Figure 7-1. Main Assembly Description Quantity Part No. Dia. Mkgs. Item No. 1 182 605 COVER, top 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 44 - Notes

Page 47 - (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 48 - 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...