Hobart Welding Products 120, 150 manual Maintenance &TROUBLESHOOTING, Routine Maintenance, Months

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SECTION 5 – MAINTENANCE &TROUBLESHOOTING

5-1. Routine Maintenance

Y Disconnect power before maintaining.

3 Months

Replace unreadable labels.

Repair or replace cracked weld cable.

Clean and tighten weld terminals.

6 Months

Blow out or vacuum inside.

During heavyOr service, clean

monthly.

5-2. Overload Protection

3 2

120 VAC (CSA) Model

1 Circuit Breaker CB

Circuit breaker CB protects wire feed motor from overload. If circuit breaker opens, wire stops feeding.

2Circuit Breaker CB1 (CSA Model)

CB1 protects unit from overload. If CB1 opens, unit shuts down.

3Circuit Breaker CB2 (CSA Model)

Circuit breaker CB2 protects wire feed motor from overload. If circuit breaker opens, wire stops feeding.

Reset breaker.

120 VAC And 230 VAC (CSA) Models

Ref. ST-802 081

OM-210 088 Page 21

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Contents Processes OM-210 088DDescription From Hobart to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN 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 LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’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 Specifications SpecificationsVAC Model 30%dutycycle at 90 amps Minutes Welding Duty Cycle And OverheatingOverheating Reduce Duty Cycle MinutesVolt-Ampere Curves Installing Welding Gun InstallationChanging Polarity Process/Polarity TableFlow Adjust Installing Gas Supply460 mm 18 in 457 mm of space for airflow Do not move or operate unit Where it could tipL2 L1 230 VAC Installing Wire Spool And Adjusting Hub Tension Electrical Service Guide For 230 VAC ModelStandard Wire Spool 8 Lb Wire Spool 4 Adjusting Hub TensionCut off wire. Close and latch door Threading Welding WireRemove gun nozzle and contact tip Power Switch Voltage SwitchOperation ControlsWeld Parameters For 120 VAC Model Weld Parameters For 230 VAC Model Routine Maintenance Maintenance &TROUBLESHOOTINGDisconnect power before maintaining Overload ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Disconnect gun from unit Cleaning Or Replacing Piecemaker 14-A Gun LinerTo Reassemble Gun Secure power cord plug in receptacle see Section Troubleshooting TableTrouble Remedy OM-210 088 OM-187 926 Electrical DiagramCircuit Diagram For 120 VAC CSA Model Circuit Diagram For 230 VAC Model MIG Welding Gmaw Guidelines Regulator Flowmeter Wire Feeder Power Source Shielding GasTypical MIG Process Connections Gun Workpiece Work ClampWire Recommendation Wire Speed Typical MIG Process Control SettingsSelect Wire Size Select VoltageHolding And Positioning Welding Gun Push PerpendicularDrag Conditions That Affect Weld Bead ShapeShort Normal Long ShortNormalLongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Porosity Troubleshooting Excessive SpatterTroubleshooting Excessive Penetration Possible Causes Corrective ActionsTroubleshooting Incomplete Fusion Troubleshooting Lack Of PenetrationTroubleshooting Burn-Through Troubleshooting Distortion Troubleshooting Waviness Of BeadWeld bead Application Common MIG Shielding GasesFlat & Horizontal1 Fillet Main Assembly Parts ListDia Part Mkgs Description Quantity Gun And Cable Assembly, Piecemaker 14-A 379 177 177282A-8 177282A-6 024 H 379 177282A-7379 177 177282A-9 379 177 177282A-10 024 H 177282A-11Options Optional Drive Rolls202 For One Small Gas CylinderSupport ServiceHobart Welding Products Contact your Distributor forCall

120, 150 specifications

Hobart Welding Products has long been recognized for delivering high-quality welding solutions, and the Hobart 150,120 welder is no exception. This versatile, compact welder is designed to meet the needs of both hobbyists and professionals alike, making it a popular choice among welders in various industries.

One of the main features of the Hobart 150,120 is its dual voltage capability. It operates on both 120V and 240V power sources, providing users the flexibility to work in a variety of environments, whether at home or in a professional shop setting. This feature makes it particularly appealing for welding enthusiasts who may not always have access to higher voltage outlets.

The welder is equipped with a robust 30-140 amp output range, allowing users to tackle a wide range of welding tasks. This output capability supports a variety of materials, including mild steel, stainless steel, and aluminum, with thicknesses up to 1/4 inch. Whether you're working on auto repair, fabrication projects, or DIY tasks around the house, the Hobart 150,120 is well-suited for the job.

Another significant advantage of the Hobart 150,120 is its user-friendly design. The welder features an easy-to-read control panel that allows users to adjust the settings conveniently. The intuitive parameters ensure that both beginners and experienced welders can quickly achieve optimal results. Additionally, it incorporates a built-in thermal overload protection feature to prevent overheating, enhancing safety during operation.

In terms of technology, the Hobart 150,120 utilizes a MIG welding process that simplifies the welding experience. This process feeds a continuously welding wire through the welding gun, reducing the need for frequent reloading and ensuring a smooth, consistent weld. The inclusion of a gas solenoid also enables users to switch between gas-shielded and flux-cored wire, providing versatility for different applications.

Lastly, the compact design of the Hobart 150,120 makes it portable and easy to store, which is particularly advantageous for users with limited workspace. With its combination of robust features, advanced technologies, and user-friendly operation, the Hobart 150,120 welder stands out as an excellent choice for anyone looking to achieve high-quality welds with efficiency and ease. It firmly establishes Hobart Welding Products as a leader in the welding market.