Hobart Welding Products 452, 302 manual Operation, Controls Non CE Models

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SECTION 4 – OPERATION

4-1. Controls (Non CE Models)

450 Amp Model Shown

1

2

3

4

5

9

8

7

6

Ref. ST-184 940

1Process Selector Switch

2Arc Force (Dig) Control

Control increases SMAW short-circuit amper- age which allows the operator to use a very short arc length without sticking the electrode.

Set control at 0 for normal welding amperage. Turn clockwise to increase short-circuit amperage.

3 Hot Start Switch

Turn switch On for SMAW, SAW, and CAC-A. Turn Off for GTAW welding.

When set in On position, higher short-circuit amperage helps arc starting. After arc starts, the Amperage/Voltage control setting deter- mines weld amperage.

4 Amperage/Voltage Adjustment Control

When Process Selector switch is in the

SMAW/GTAW position, turn control clockwise to increase amperage. Read amperage from outer scale of control. When Process Selector switch is in the GMAW position, turn control clockwise to increase voltage. Voltmeter value changes as control knob is turned. Control can be adjusted while welding.

5 Digital Meters

With Process Selector switch in the SMAW/ GTAW position, digital meters will read 0 (zero) with contactor off. Digital meters will display actual output voltage and amperage with con- tactor on.

With Process Selector switch in the GMAW position, voltmeter displays preset voltage with contactor off. Voltmeter and ammeter dis- play actual output voltage and amperage with contactor on.

6 Power Switch With Indicator Light

7High Temperature Shutdown Light

8Remote Amperage/Voltage Control Switch

For front panel control, place switch in Panel position. For remote control, place switch in Remote position, and connect remote device (see Section 3-10).

9 Output Switch (Contactor)

For front panel control of output, place switch in Panel position. For remote control of output, place switch in Remote position, and connect remote device (see Section 3-10).

YWeld output studs are energized only when Output switch is in On position, or while welding.

YTurn Off power before connecting to remote device.

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Contents Processes OM-277Description 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 InformationUN Choc Électrique peut tuer Signification des symbolesLES Fumées ET LES GAZ peuvent être dangereux Identifie un message de sécurité particulierDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionDES Pièces Chaudes peuvent pro- voquer des brûlures graves LE Bruit peut affecter l’ouïeLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs électromagnétiques Principales normes de sécuritéConsignes relatives aux stimulateurs cardiaques Definitions General Precautionary LabelInput Connection Label Nameplate Safety SymbolsElectric Shock And Airflow Label ? aManufacturer’s Rating Labels For CE Products Symbols And DefinitionsSpecifications InstallationDuty Cycle And Overheating Volt-Ampere Curves 300 Amp 450 Amp CC Mode CV ModeDimensions Dimensions And WeightsWeight Selecting a LocationTurn Off power before connecting to receptacle Be careful when placing or moving unit over uneven surfacesTipping VAC Receptacle And Circuit BreakersRemote 14 Receptacle And Terminal Strip 1T Information Weld Output Terminals And Selecting Cable SizesOror Connecting Remote ControlElectrical Service Guide Placing Jumper Links Connecting Input Power Controls Non CE Models OperationControls CE Models Routine Maintenance Maintenance & TroubleshootingDisconnect power before maintaining Fuse F1Trouble Remedy TroubleshootingCircuit Diagram Electrical DiagramMain Assembly Parts ListQuantity Panel, Front w/Components Panel, Front w/Components -1 Item Rectifier, Si Diode 302 Model -1 Item Rectifier, Si Diode 452 Model -1 Item Panel, Rear w/Components -1 Item Page Page Support ServiceHobart Welding Products Contact your Distributor for
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302, 452 specifications

Hobart Welding Products has established itself as a trusted name in the world of welding equipment, and among its extensive lineup, the 452,302 model stands out for its exceptional performance and versatility. This MIG welder is designed to meet the needs of both professionals and hobbyists, ensuring high-quality welds in a variety of applications.

One of the main features of the Hobart 452,302 is its robust build quality. Constructed with durable materials, this welder is designed to withstand the rigors of heavy use while maintaining consistent performance. Its compact design allows for portability, making it an excellent choice for on-site jobs or home workshops.

The 452,302 operates on a 230V input power, providing a strong output range that can handle a variety of welding tasks, from thin sheets of metal to thicker materials. It boasts a high maximum output of 230 amps, which allows it to tackle demanding projects with ease. This flexibility makes it suitable for professionals in construction, fabrication, and even automotive repair.

With its excellent arc stability, the Hobart 452,302 ensures ease of use and reduces the chance of defects in welds. The welder features an adjustable wire feed speed, allowing users to dial in the perfect setting for their specific welding task. This customization is crucial for achieving optimal results, as different materials and thicknesses require varying settings.

In terms of technology, the 452,302 integrates advanced thermal overload protection, safeguarding against overheating and prolonging the lifespan of the machine. This feature is particularly beneficial in high-demand environments, where extended periods of operation can lead to equipment failure.

The Hobart 452,302 is also compatible with a range of wire sizes and types, enabling users to expand their welding capabilities. This versatility is enhanced by the welder’s easy connectivity to gas regulators, making it suitable for both gas-shielded and flux-cored welding processes.

In conclusion, the Hobart Welding Products 452,302 is a powerful and versatile MIG welder designed to meet the diverse needs of welders. With its robust build, excellent performance features, and advanced safety technologies, it is a reliable choice for anyone seeking top-quality welding equipment. Whether you're a seasoned professional or an enthusiastic beginner, the 452,302 delivers the performance and durability necessary for successful welds on a variety of projects.
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