Maintenance & Troubleshooting | Hobart Welding Products 350LX

SECTION 5 – MAINTENANCE & TROUBLESHOOTING

5-1. Routine Maintenance

Y Disconnect power before maintaining.

3 Months

Replace

Unreadable

Labels

Repair Or

Replace

Cracked

Weld

Cables

Clean And

Tighten

Weld

Terminals

Adjust Spark

Gaps

Replace

Cracked

Parts

14-Pin Cord

Gas Hose

Torch Cable

6 Months

Blow Out Or Vacuum Inside,

During Heavy Service, Clean Monthly

OR

Y Warranty is void if machine fails due to contaminates inside.

5-2. Circuit Breaker CB1

1

1 Circuit Breaker CB1

If CB1 opens, high frequency and output to the 115 volts ac duplex re- ceptacle stop. Press button to reset breaker.

Ref. ST-801 972

OM-356 Page 34

Image 38

Hobart Welding Products 350LX manual Maintenance & Troubleshooting, Routine Maintenance, Months, Circuit Breaker CB1

Contents

Description OM-356188694JProcesses From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can kill Flying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or kill Principal Safety Standards EMF Information About Pacemakers UN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereux LE 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 blessures Consignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Keep your head out of the fumes Disconnect input plug or power before working on machineDefinitions Manufacturer’s Rating Label For CE Products Symbols And Definitions Movement Falling Unit Can Cause Injury InstallationSelecting a Location Location And Airflow Dimensions And Weights Specifications Minutes Welding Minutes Resting Duty Cycle And OverheatingVolt-Ampere Curves Overheating ARC Welding can cause Electromagnetic Interference Weld Output Terminals And Selecting Cable SizesRemote 14 Receptacle Terminals Turn Off power before con Necting to receptacle Electrical Service Guide Placing Jumper Links And Connecting Input Power Close and secure primary door For 200/230/460 Volts And Non CE Units OperationControls Pulse Controls For CE Units Process Control Output Selector SwitchOutput Selector Switch Current Control Output Control When HF Start is selected, start arc as follows Start ModeWhen Lift-Arc is selected, start arc as follows When HF Continuous is selected, start arc as follows Amperage Adjustment Control Meters Balance/DIG Control Preflow Time Control Postflow Time Control 50% Setting Pulse ControlsPercent % Peak Bkg Amp High Frequency Control Optional Sequence Controls Sequence Selection Switch Start Time/Spot Time Control And Start Current Control Crater Time Control And Final Current Control Start/Crater Sequence Controls Start Sequence Switch 4T Position Sequence Selection Controls Timer/Cycle Counter Spot Time Control Disconnect power before maintaining Maintenance & TroubleshootingRoutine Maintenance Months Tools Needed 012 in 0.305 mm Adjusting Spark GapsTurn Off power before adjusting spark gaps Help 4 Display Voltmeter/Ammeter Help DisplaysHelp 3 Display Indicates the transformer of the unit has Troubleshooting There are not user serviceable parts inside unit Protect against overheating Check for water in torch, and repair torch if necessaryFan not operating Electrical Diagram Circuit Diagram Welding Processes Requiring High Frequency Incorrect InstallationHigh Frequency Weld Zone Metal Building Correct InstallationNonmetal Building Ground workpiece if required by codes Metal Building Requirements Parts List Main Assembly TRANSFORMER/STABILIZER Assembly 200/230/460 Optional Switch, Push Button -1 Item 185Page Service Support Call Contact your Distributor forHobart Welding Products