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Titanium MIG140 - User Manual

Titanium MIG140
32 pages
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MIG140
MIG170
57863 57864
Owners Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 20g
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-380-0318 as soon as possible.
Copyright
©
2020 by Harbor Freight Tools
®
. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Too ls r eq ui red fo r as se mbly a nd s er vice m ay n ot be in cl ud ed .
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
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Summary

IMPORTANT SAFETY INFORMATION

General Safety

Provides essential safety guidelines for operating the welder.

WARNING SYMBOLS AND DEFINITIONS

Safety Alert Symbol Definitions

Explains hazard symbols and their meanings to prevent injury.

Fume and Gas Safety

Inhalation Hazards and Ventilation

Details risks of welding fumes and necessary ventilation or respiratory protection.

Arc Ray Safety

Eye and Skin Protection

Outlines required protective gear for welding arc rays to prevent burns and eye damage.

Electrical Safety

Shock Prevention Measures

Essential precautions to prevent electric shock hazards during welder operation.

Fire Safety

Fire Prevention and Hazards

Guidelines to prevent fires and mitigate hazards associated with welding operations.

Welder Use and Care

Safe Welder Operation Practices

Guidelines for safe and proper use of the welder, including basic precautions.

Maintenance

Routine Welder Maintenance

Instructions for regular inspection, servicing, and upkeep of the welder.

Gas Shielded Welding - Cylinder Safety

Cylinder Handling and Safety

Critical safety measures for handling and using gas cylinders with the welder.

Grounding

Proper Grounding Procedures

Instructions for correct grounding connections to prevent electrical hazards.

Extension Cords

Extension Cord Usage

Specifies that extension cords should not be used with this welder.

Replacement Cords

Power Cord Guidelines

Rules for using only specified or identical replacement power cords for the welder.

Symbology

Understanding Warning and Control Symbols

Explains various symbols used on the welder and in the manual for safety and operation.

Specifications

Technical Specifications

Details the electrical and performance specifications for the MIG 140 and MIG 170 models.

Wire Spool Installation;Wire Setup

2 lb Spool Loading Procedure

Step-by-step guide for installing a 2 lb wire spool and preparing the wire feed.

Flux-Cored Welding Wire Setup

DCEN Polarity and Connection

Instructions for setting up DCEN polarity and connecting wire for flux-cored welding.

Solid Core Welding Wire Setup

DCEP Polarity and Gas Connection

Guide for setting up DCEP polarity and gas cylinder for solid core welding.

Feed Roller and Tensioner Adjustment

Adjusting Feed Roller and Tension

Instructions for adjusting feed roller and tensioner for proper wire feeding.

MIG Gun and Wire Feed Connections

Connecting MIG Gun and Control Cables

Steps for connecting the MIG gun and wire feed control cables.

MIG Gun Preparation and Power Connection

Gun Prep and Safe Power Hookup

Steps to prepare the MIG gun and connect the power cord safely.

Final Wire Feed and Gun Setup

Testing Wire Tension and Final Adjustments

Completing wire feed setup, testing tension, and final gun adjustments.

Basic Welding

Welding Techniques and Safety

Overview of basic welding methods (MIG, Flux-Cored) and essential safety precautions.

Front Panel Controls

Understanding Welder Controls

Explains the function of each control on the front panel of the welder.

Interior Controls

Key Internal Components

Identifies and describes important internal components of the welder.

Weld Settings

Referencing Weld Settings Chart

Guides users to the settings chart for optimal weld parameters.

Duty Cycle (Duration of Use)

Understanding and Managing Duty Cycle

Explains duty cycle limitations and how to prevent welder overheating.

Setting Up The Weld

Weld Setup Procedures

Steps for preparing workpieces, clamping, and setting initial weld parameters.

Gas Shielded Welding Setup

Cylinder and Gas Flow Configuration

Instructions for setting up gas shielded welding, including cylinder and gas flow.

Basic Welding Technique

Weld Bead Formation and Gun Angles

Explains stringer/weave beads, gun angles (push/drag), and CTWD for optimal welds.

Post-Weld Procedures and Shutdown

Safe Shutdown and Storage

Steps for examining welds, safe shutdown, and storing equipment after welding.

Cleaning the Weld

Weld Cleaning Methods

Procedures for cleaning welds after welding and inspecting their quality.

Strike Test

Testing Weld Strength and Quality

A test procedure to evaluate the strength and quality of a weld.

Weld Diagnosis

Troubleshooting Weld Penetration

Guides on diagnosing and correcting weld penetration issues based on heat and speed.

Weld Problems: Penetration and Adhesion

Diagnosing Weld Penetration Issues

Identifies and offers solutions for weld penetration problems.

Weld Problems: Slag and Workmanship

Managing Slag and Poor Adhesion

Addresses slag removal and issues with welds not adhering properly.

Weld Problems: Porosity and Spatter

Troubleshooting Porosity and Spatter

Discusses causes and solutions for porosity and excessive spatter in welds.

Weld Problems: Bead Shape and Burn-Through

Correcting Wavy Beads and Burn-Through

Provides solutions for crooked/wavy beads and burn-through defects.

Nozzle and Contact Tip Inspection and Cleaning

Nozzle and Tip Maintenance

Detailed steps for cleaning and inspecting the MIG gun nozzle and contact tip.

Alarm Indicator Error Codes

Interpreting Error Codes

Explains the meaning and solutions for various alarm indicator error codes.

Troubleshooting: Arc Stability and Power

Addressing Arc Stability and Power Issues

Diagnoses problems with unstable arcs, weak strength, and power indicator issues.

Troubleshooting: Ignition and Porosity

Solving Ignition and Porosity Problems

Solutions for issues where the arc does not ignite or porosity appears in the weld.

Parts List and Diagram

Component Parts List

A detailed list of all parts included with the welder, with quantities.

Assembly Diagram

Welder Component Assembly

Visual guide showing how the different parts of the welder are assembled.

Warranty Information

Limited 90 Day Warranty Details

Outlines the terms, conditions, and exclusions of the product's 90-day limited warranty.

Titanium MIG140 Specifications

General IconGeneral
Input Voltage120V
Welding Output Range30-140A
Welding ProcessesMIG
Spool Size Capacity4 in and 8 in
Wire Diameter0.035 in
Wire Feed Speed50-500 IPM
Weight24 lbs
Dimensions17 in. x 9 in. x 14 in.

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