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Hobart Welding Products Handler 125 User Manual

Hobart Welding Products Handler 125
40 pages
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www.HobartWelders.com
Description
OM-283007B 2019-05
Processes
File: MIG (GMAW)
Arc Welding Power Source And
Wire Feeder
Flux Cored (FCAW) Welding
Handler 125
)
MIG (GMAW) Welding

Table of Contents

Questions and Answers:

Hobart Welding Products Handler 125 Specifications

General IconGeneral
Input Current20 A
Amperage Range30-125 A
Duty Cycle20% at 90 A
Weight57 lbs
Input Phase1-Phase
Wire Diameter0.030 - 0.035 in (0.8 - 0.9 mm)
Wire Feed Speed Range50-500 IPM

Summary

Safety Precautions

Symbol Usage and Warnings

Explains danger, warning, and notice symbols with potential hazards.

Arc Welding Hazards

Details risks of electric shock, proper grounding, and handling live parts.

Fumes, Gases, and Arc Rays Hazards

Fire, Explosion, and Flying Debris Hazards

Risks of fire, explosion from welding, and injury from flying metal or dirt.

Cylinder Safety and Handling

Installation and Operation Safety Symbols

Symbols for installation hazards like falling equipment, overuse, static, moving parts.

EMF and Interference Warnings

Principal Safety Standards

Lists key safety standards and their sources for welding and cutting.

Definitions

Safety Symbols Definitions

Explains various safety symbols used in the manual and their meanings.

Specifications

Unit Specifications

Details amperage, voltage, KVA, KW, weight, and dimensions of the welding unit.

Environmental Specifications

Specifies IP rating and operating/storage temperature ranges for the equipment.

Duty Cycle and Overheating

Installation

Selecting a Location

Guides on choosing a safe location for the welding unit.

Installing Work Clamp

Instructions for properly installing the work clamp.

Process, Polarity, and Wire Spool Setup

Installing Gas Supply

Connecting 120 Volt Input Power

Guides on connecting the unit to a 120V power source.

Installing Contact Tip and Nozzle

Threading Welding Wire

Operation

Controls Overview

Explains the function of the unit's various controls.

Operating The Gun

Guides on how to properly operate the welding gun trigger and function.

Weld Parameter Chart

Maintenance & Troubleshooting

Routine Maintenance and Overload Protection

Outlines routine maintenance checks and explains overload protection mechanisms.

Gun Tip and Drive Roll Maintenance

Gun Liner Cleaning and Replacement

Troubleshooting Table

Electrical Diagram

Circuit Diagram

Presents the circuit diagram of the welding power source for reference.

Welding Guidelines

Process Connections and Control Settings

Illustrates FCAW/GMAW process connections and provides typical control settings.

Gun Handling and Bead Characteristics

Troubleshooting Common Weld Defects

Troubleshooting Penetration and Fusion Issues

Semiautomatic Equipment Troubleshooting

Parts List

Components and Accessories

Lists part numbers for the welding unit, accessories, and consumables.

Warranty Information

Hobart 5/3/1 Limited Warranty

Details the warranty coverage periods, terms, and exclusions for Hobart welding equipment.

Owner's Record

Owner's Record Section

A section for users to record personal information about their equipment.

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