Hobart OM-928 - Manuals

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Manual

Manual Hobart OM-928

Summary

Page 2 - From Hobart to You

Hobart Welders manufactures a full lineof welders and welding related equipment.For information on other quality Hobart products, contact your local Hobartdistributor to receive the latest full line catalog or individual catalog sheets.To locate your nearest distributor or service agency call 1-877-...

Page 3 - TABLE OF CONTENTS; WARNING

TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Plasma Arc Cutting Haz...

Page 5 - SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING; Symbol Usage; Plasma Arc Cutting Hazards; CUTTING can cause fire or explosion.

OM-928 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING pom _nd_9/98 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 6 - FUMES AND GASES can be hazardous

OM-928 Page 2 D On inverter power sources, failed parts can ex-plode or cause other parts to explode whenpower is applied. Always wear a face shieldand long sleeves when servicing inverters. EXPLODING PARTS can injure. Sparks and hot metal blow out from the cutting arc.Chipping and grinding cause fl...

Page 7 - Additional Symbols For Installation, Operation, And Maintenance; OVERUSE can cause OVERHEATING.

OM-928 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance HOT PARTS can cause severe burns. D Do not touch hot parts bare handed. D Allow cooling period before working on torch. MOVING PARTS can cause injury. D Keep away from moving parts such as fans. D Keep all doors, pane...

Page 9 - SECTION 1 – CONSIGNES DE SÉCURITÉ – LIRE AVANT UTILISATION; Signification des symboles; Dangers liés au coupage à l’arc au plasma

OM-928 Page 5 SECTION 1 – CONSIGNES DE SÉCURITÉ – LIRE AVANT UTILISATION pom_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 endommager l’ouïe.

OM-928 Page 6 D N’approchez pas le tube du chalumeau et l’arc pilote lorsque la gâchette estenfoncée. D Le câble de masse doit être pincé correctement sur la pièce à couper, métalcontre métal (et non de telle sorte qu’il puisse se détacher), ou sur la tablede travail le plus près possible de la lign...

Page 11 - Principales normes de sécurité

OM-928 Page 7 1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance DES PIECES CHAUDES peuvent pro-voquer des brûlures graves. D Ne pas toucher des parties chaudes à mains nues. D Laisser refroidir avant d’intervenir sur la torche. DES ORGANES MOBILES peuv...

Page 12 - Information sur les champs électromagnétiques

OM-928 Page 8 1-5. Information sur les champs électromagnétiques Données sur le soudage électrique et sur les effets, pour l’organisme,des champs magnétiques basse fréquence Le courant de soudage ou de coupage passant dans les câbles de puis-sance crée des causera des champs électromagnétiques. Il y...

Page 13 - SECTION 2 – INSTALLATION; Specifications For Power Source; Duty Cycle And Overheating

OM-928 Page 9 SECTION 2 – INSTALLATION 2-1. Specifications For Power Source Primary Volts Primary Amperes Primary Service (Recommended) Secondary Volts (DC) Secondary Amperes KW KVA Power Factor Max** OCV (DC) 120 20.32 (0.25*) 20A 110 12 2.01 2.44 0.82 353 *While idling**10% High line condition 2-2...

Page 14 - Selecting A Location

OM-928 Page 10 2-4. Torch Dimensions And Weight Ref. 801 397-A 3.0 lb (1.4 kg) 1 in (25 mm) 8-3/8 in (213 mm) 1-3/8 in (35 mm) 18 in (457 mm) 2-5. Selecting A Location loc_2 3/96 - Ref. 802 588-A / 802 589-A 1 Lifting Handle Use handle to lift unit. 2 Hand Cart Use cart or similar device to moveunit...

Page 15 - Connecting Work Clamp; Connecting Input Power

OM-928 Page 11 2-6. Connecting Work Clamp 802 463-A 1 Work Clamp 2 Workpiece Connect work clamp to a clean,paint-free location on workpiece, asclose to cutting area as possible. 1 2 2-7. Connecting Input Power 802 589-A Check input voltage available atsite. 1 Grounded Receptacle A 120 volt, 20 amper...

Page 16 - SECTION 3 – OPERATION; Controls; Cutting Speed

OM-928 Page 12 SECTION 3 – OPERATION 3-1. Controls 2 3 1 OFF ON POWER CUP TEMP INPUT VOLTAGE 1 Power Switch 2 Power Light Use light to tell if unit is energized and readyto operate. Light goes off if input power is notwith specified range (see trouble light infor-mation). 3 Trouble Light Trouble lig...

Page 17 - Trigger Safety Lock

OM-928 Page 13 3-3. Trigger Safety Lock Trigger Locked Trigger Unlocked 1 Trigger 801 545-A 1 out bottom of cut. 801 400-A 3-4. Sequence Of Operation After cutting arc starts, slowly start moving torch across metal. Adjust torch speed so sparks go thru metal and Pause briefly at end of cut before re...

Page 18 - SECTION 4 – MAINTENANCE & TROUBLESHOOTING; Routine Maintenance

OM-928 Page 14 SECTION 4 – MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more oftenduring severe conditions. Each Use Check Torch Tip, Electrode, And Shield Cup Every Week Check Shield Cup Shutdown System 3 Months Replace Damaged Or Unre...

Page 19 - Trouble Light And Checking Shield Cup Shutdown System; INPUT VOLTAGE

OM-928 Page 15 4-2. Trouble Light And Checking Shield Cup Shutdown System If certain problems occur, thetrouble light comes on, and outputstops. 1 Trouble Light a Lights if shield cup is loose. Turn power Off, and checkshield cup connection (see Item 2 below). Power must be reset whenever the cup sh...

Page 20 - Torch And Work Cable Connections

OM-928 Page 16 4-3. Torch And Work Cable Connections If torch or work cable needs to beremoved or replaced, proceed asfollows: Turn power Off, and disconnectinput power plug from receptacle.Remove wrapper from unit. Torch Connections Remove existing torch cable fromunit. 1 Strain Relief 2 Torch Cabl...

Page 22 - Troubleshooting Power Source

OM-928 Page 18 4-5. Troubleshooting Power Source Connect unit to proper inputvoltage. (see Section 2-7). Yes No Is input powerconnected tocorrect linevoltage? Is Powerswitch in theOn position? Place Power switch in theOn position. (see Section3-1). No Yes Is the coolingfan running? Check Power switc...

Page 24 - SECTION 5 – ELECTRICAL DIAGRAM

OM-928 Page 20 SECTION 5 – ELECTRICAL DIAGRAM Figure 5-1. Circuit Diagram 202 707

Page 25 - SECTION 6 – PARTS LIST

OM-928 Page 21 SECTION 6 – PARTS LIST Figure 6-1. Main Assembly . Hardware is common andnot available unless listed. 802 591-D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 19 20 21 22 23 25 24 26 27 28 29 30 17 18 31

Page 28 - Notes

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  2003 Hobart Welding Products. 1/03 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...