Hobart Welding Products 500 manual Maintenance & Troubleshooting, Ammeter And Voltmeter Optional

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4-5. Ammeter And Voltmeter (Optional)

1 Voltmeter

Voltmeter displays voltage at the weld output terminals, but not nec- essarily the welding arc due to cable resistance, poor connec- tions, etc.

2 Ammeter

Ammeter displays weld amperage output of unit.

SECTION 5 – MAINTENANCE & TROUBLESHOOTING

5-1. Routine Maintenance

Y Disconnect power before maintaining.

3 Months

Replace unreadable labels.

6 Months

Blow out or vacuum inside. During heavy service, clean monthly

Repair or	Clean	and
replace	tighten	weld
cracked	terminals.
weld
cable.

	Sealed
Or	Bearings
Or	– No Oil
	Needed

OM-201 444 Page 22

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Contents Description OM-201Processes From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques General Precautionary Label DefinitionsElectric Shock And Airflow Label Nameplate Safety SymbolsInput Connection Label ? a60-550A Symbols And DefinitionsManufacturer’s Rating Labels For CE Products Duty Cycle And Overheating InstallationSpecifications Volt-Ampere Curves Selecting a Location Movement Location And AirflowTipping Dimensions And WeightsBe careful when placing or moving unit over uneven surfaces Selecting And Preparing Weld Output Cables 150 ft 200 ft 250 ft 300 ft 350 ft Connecting To Weld Output TerminalsWeld Cable Sizes 45 m 60 m 70 m 90 m 105 m 120 mElectrical Service Guide Remote Amperage Control ReceptacleConnecting Input Power Placing Jumper LinksConnecting Input Power Controls Amperage Adjustment ControlOperation Remote Amperage Switch Power SwitchDisconnect power before maintaining Months Maintenance & TroubleshootingRoutine Maintenance Ammeter And Voltmeter OptionalTrouble Remedy Troubleshooting TableOverload Protection Electrical Diagram Circuit DiagramOM-201 444 Parts List Main AssemblyParts For Optional Equipment Panel, Front w/Components -1 Item Panel, Rear w/Components -1 Item Transformer & Amplifier, Power Main 50 Hz Service SupportContact your Distributor for Hobart Welding Products