Hobart OM-303 manual Main Assembly

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Item	Dia.	Part	Description
No.	Mkgs.	No.	Description	Quantity
			Figure Figure 9-1. Main Assembly (Continued)

. . . 42 . . . .	. PL1 . . .	157 958 . .	LIGHT, ind wht lens 28V	. . . 1
. . . 43 . . . .	. . . . . . . . .	155 422 . .	PANEL, front	. . . 1
. . . 44 . . . .	. S2 . . . .	154 896 . .	SWITCH, polarity (consisting of)	. . . 1
. . . 45 . . . .	. S4 . . . .	089 645 . . .	. SWITCH, lim 11A 125V roller lever actr	. . . 1
. . . 46 . . . .	. . . . . . . . .	177 359 . .	CABLE, work assembly (consisting of)	. . . 1
. . . 47 . . . .	. . . . . . . . .	010 368 . . .	. CLAMP, work 200A	. . . 1
. . . 48 . . . .	. . . . . . . . .	026 843 . . .	. INSULATOR, vinyl black	. . . 2
. . . . . . . . . .	. . . . . . . . .	128 188 . .	HOSE, gas	. . . 1
. . . . . . . . . .	. . . . . . . . .	193 094 . .	REGULATOR/FLOWMETER w/ gas hose	. . . 1
. . . . . . . . . .	. . . . . . . . .	176 840 . .	ELECTRODE HOLDER/CABLE, (consisting of)	. . . 1
. . . . . . . . . .	. . . . . . . . .	134 460 . . .	. CONNECTOR, twlk insul male	. . . 1

+When ordering a component originally displaying a precautionary label, the label should also be ordered. *Recommended Spare Parts.

To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested Replacement Parts. Model and serial number required when ordering parts from your local distributor.

OM–303 Page 24

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Contents Description OM-303155795NProcesses From Hobart to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersSignification des symboles Consignes DE Securite Lire Avant UtilisationUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe Risque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques General Precautionary Label DefinitionsIntroduction Symbols And DefinitionsIncluded with Your Unit Specifications Duty Cycle ChartVolt-Ampere Curves Hertz ModelsInstallation Turn Off power before mak- ing connectionsSelecting a Location Typical Stick ConnectionsTypical TIG Connections Electrical Service Guide Connecting Input PowerOperation ControlsExample of Front Panel Amperage Control Example of Remote Amperage ControlGtaw Welding Amperage Range AC Low AC HighProcess and Material Thickness Guide Label Routine Maintenance Maintenance and TroubleshootingTroubleshooting Electrical Diagrams Circuit DiagramIncorrect Installation High FrequencyWelding Processes Requiring High Frequency Weld ZoneMetal Building Correct InstallationMetal Building Requirements Parts List Main AssemblyDia Part Description Mkgs Quantity Figure -1. Main Assembly Page Page Service SupportContact your Distributor for Hobart Welding Products