Hobart Handler 140 User Manual

Hobart Handler 140

48 pages

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Processes

OM-925 217 694F

2010−04

Handler 140

And H-10 Gun

Arc Welding Power Source And

Wire Feeder

Description

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

R

Table of Contents

Other manuals for Hobart Handler 140

Technical Manual48 pages

Specifications4 pages

Questions and Answers:

J
Jeremy BrownAug 22, 2025
Why is the wire speed low or erratic on my Hobart Handler 140?
- A
  Anthony BeckerAug 22, 2025
  If your Hobart Welding System experiences low or erratic wire speed, here are some potential solutions: * Readjust the weld parameter settings. * Change to the correct size drive roll. * Readjust the drive roll pressure. * Clean or replace the wire inlet guide or liner if it's dirty or plugged. * Readjust the wire reel hub tension. * Check the voltage and connections of the wire drive motor and replace the motor if necessary.
A
Alexis WhiteAug 25, 2025
What to do if my Hobart Handler 140 Welding System has no weld output, the wire doesn't feed, and the fan doesn't run?
- R
  Robert HallAug 26, 2025
  If your Hobart Welding System has no weld output, the wire doesn't feed, and the fan doesn't run, try the following: * Ensure the power cord plug PLG1 is securely in the receptacle. * Replace the building line fuse or reset the circuit breaker if it's open. * Place the Power switch S1 in the On position. * Reset the power source supplementary protector if it's open.
T
Theresa HarrisAug 27, 2025
What to do if CB1 opens and the Hobart Welding System shuts down?
- M
  morganjohnsonAug 27, 2025
  If CB1 opens and the unit shuts down, you can try the following: Reset the supplementary protector. Also, release the gun trigger and wait until the protection circuit resets, allowing the drive motor to feed wire again.
C
Caleb BerryAug 30, 2025
What to do if Hobart Welding System has no weld output, wire doesn't feed, but fan motor runs?
- A
  Aaron HartmanAug 30, 2025
  If your Hobart Welding System exhibits these symptoms, it could be due to a few reasons. First, the thermostat TP1 might be open due to overheating; in this case, allow the fan to run with the gun trigger switch off until the unit cools down and the thermostat closes. Also, ensure the Voltage range switch is correctly positioned by rotating the knob until it clicks into place at the desired range setting. Finally, check and secure the gun trigger leads.
J
Jasmine JohnsonSep 2, 2025
Why Hobart Welding System has no weld output, wire doesn't feed, and fan doesn't run?
- M
  Miguel DixonSep 2, 2025
  If your Hobart Welding System shows these symptoms, there are several things to check: - Ensure the power cord is securely plugged into the receptacle. - Replace the building line fuse or reset the circuit breaker if it's open. - Make sure the Power switch is in the On position. - Reset the welding power source supplementary protector.
B
Brandi BanksSep 4, 2025
What to do if my Hobart Handler 140 has no weld output but the wire feeds?
- S
  Sierra GlennSep 4, 2025
  If your Hobart Welding System has no weld output, the wire feeds, here's what you can do: * Ensure the work clamp has good metal-to-metal contact. * Replace the gun contact tip. * Check the thumbscrew securing the gun end to the feedhead adapter and tighten it if necessary.
J
Jack MccormickSep 7, 2025
How to troubleshoot low weld output on my Hobart Welding System?
- F
  franklinsandraSep 7, 2025
  If your Hobart Welding System exhibits low weld output, try these solutions: * Connect the unit to the correct input voltage or check for low line voltage. * Position the Voltage switch S2 correctly. * If using an extension cord, make sure it's the right size for the input voltage and amperage.
T
Teresa RamosSep 9, 2025
How to fix improper or no shielding gas flow in my Hobart Welding System?
- D
  Dennis WhiteSep 9, 2025
  If your Hobart Welding System has improper or no shielding gas flow, you can try the following: * Clean or replace the gas hose. * Check the shielding gas valve GS1 for proper coil voltage and connections, and check the continuity of the coil. Replace GS1 if necessary. * Clear any blockage in the gun.
C
Christy GaySep 12, 2025
What to do if shielding gas flows continuously on my Hobart Handler 140 Welding System?
- L
  Laurie RobbinsSep 12, 2025
  If the shielding gas flows continuously on your Hobart Welding System, replace contactor CR3.

Hobart Handler 140 Specifications

General

Input Voltage	115V
Welding Amperage Range	25-140 A
Duty Cycle	20% @ 90A
Wire Feed Speed Range	40-700 IPM
Weldable Materials	Mild Steel, Stainless Steel, Aluminum
Weight	57 lbs
Processes	MIG (GMAW), Flux-Cored (FCAW)
Input Current	20A
Welding Thickness	24 ga. - 1/4 in.
Input Phase	Single Phase
Maximum Open Circuit Voltage	28V
Wire Size Range	0.023 - 0.035 in

Summary

Safety Precautions

Symbol Usage and Arc Welding Hazards

Explains manual symbols and details arc welding risks.

Key Hazard Categories

Summarizes fumes, gases, arc rays, fire, explosion, and cylinder safety.

California Proposition 65 Warnings

Details chemical warnings mandated by California law for engines and products.

Principal Safety Standards and EMF Information

Lists safety standards and EMF precautions for medical implants.

Definitions

Symbols And Definitions

Defines symbols used in the manual for electrical and welding processes.

Specifications

General Specifications

Provides technical specifications for the welding unit, including output and dimensions.

Duty Cycle And Overheating

Explains duty cycle limitations and overheating indicators and actions.

Volt-Ampere Curves

Illustrates voltage and amperage output capabilities for different settings.

Installation

Gun and Work Clamp Installation

Guides for attaching the welding gun and work clamp for proper operation.

Polarity and Gas Supply Setup

Details process polarity and installing the shielding gas supply.

Unit Setup and Wire Spool Installation

Covers location, power connection, serial number, and wire spool setup.

Wire Feeding System Setup

Instructions for installing tips, nozzles, and threading welding wire.

Operation

Controls Overview

Identifies and explains the functions of the welding unit's control panel.

Weld Parameter Chart

Provides recommended settings for voltage and wire speed based on material and wire type.

Maintenance & Troubleshooting

Routine Maintenance Procedures

Covers maintenance of overload protection, drive motor, and routine checks.

Gun Component Replacement

Guides for replacing drive rolls, contact tips, and gun liners.

Troubleshooting Common MIG Issues

Addresses problems like spatter, porosity, penetration, fusion, and burn-through.

Electrical Diagram

Circuit Diagram

Provides the detailed circuit diagram for the welding power source.

MIG Welding (GMAW) Guidelines

MIG Process Connections and Settings

Illustrates MIG setup, connections, and control settings for optimal welding.

Gun Handling and Weld Bead Characteristics

Explains gun positioning and factors affecting weld bead shape and quality.

Troubleshooting Common MIG Welding Issues

Provides solutions for spatter, porosity, penetration, fusion, and burn-through problems.

Shielding Gases and Equipment Troubleshooting

Covers common shielding gases and a guide for semiautomatic welding equipment issues.

Accessories/Consumables

Accessories and Consumables

Lists available accessories, consumables like tips and nozzles, and replacement parts.

Drive Rolls and Regulators

Details replacement drive rolls and regulator/flowmeter options for gas supply.

Warranty Information

Limited Warranty Terms and Exclusions

Details the 5/3/1 warranty, its coverage, exclusions, and intended use.

Warranty Claims and Legal Disclaimers

Outlines warranty claim procedures, remedies, and legal limitations.

Owner's Record and Resources

Personal Records and Registration

Section to record purchase details and register the product for protection.

Distributor and Technical Assistance

Information on locating distributors, obtaining technical help, and ordering parts.

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