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Lincoln Electric LF-72 User Manual

Lincoln Electric LF-72
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Operator’s Manual
LF-72 WIRE FEEDER
Register your machine:
www.lincolnelectric.com/register
Authorized Service and Distributor Locator:
www.lincolnelectric.com/locator
IM10258 | Issue D ate Apr-15
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
12454
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)

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Lincoln Electric LF-72 Specifications

General IconGeneral
BrandLincoln Electric
ModelLF-72
CategoryWire Feeders
LanguageEnglish

Summary

Safety

General Safety Precautions

Covers equipment inspection, handling, general guidelines, PPE, and specific situations.

Hazard Warnings

Includes California Proposition 65, Arc Welding, and EMF hazards.

Specific Safety Hazards

Details electric shock, arc ray, fume, and gas hazards.

Fire, Cylinder, and Electrical Safety

Covers fire prevention, cylinder safety, and electrical equipment precautions.

Global Safety Information

Essential safety warnings presented in multiple languages.

Installation

Technical Specifications and Safety

Wire feeder specs, dimensions, ratings, and installation safety.

Location and Mounting

Requirements for placement and procedures for mounting configurations.

Mounting Configurations

Describes bench, swivel, boom, and suspended mounting methods.

Weld Cable Sizing

Recommended cable sizes based on amperes and duty cycle.

Cable and Connection Guidelines

Coaxial cables, weld cable, and control cable connection details.

Control Cable Connections

Details pin functions and limitations for analog control cables.

Miller Power Source Compatibility

Instructions for using the feeder with Miller power sources.

Wire Feeder Components and Systems

Covers drive systems, trigger connectors, and gun accessories.

Gun and Accessory Installation

Overview of compatible guns, torches, and accessories.

Drive System Configuration

Procedures for changing drive rolls and wire drive configuration.

Wire Feeder Adjustment

Guide for adjusting the pressure arm for optimal welding.

Wire Reel Loading

Instructions for loading various spool and Readi-Reel types.

Wire Management

Best practices for routing wire to the drive unit.

Gas and Connection Setup

Step-by-step guide for connecting the shielding gas supply.

Electrode Conduit Installation

Procedure for installing electrode conduit connectors.

Aluminum Wire Handling

Special care and preparation for welding aluminum wire.

System Configurations

Table listing compatible components for various welding processes.

Operation

Operation Safety Precautions and Symbols

Critical safety instructions and explanation of graphic symbols.

Operation Overview

Product description, specifications, required equipment, and limitations.

Front Panel Controls

Identifies and describes front panel controls and connectors.

Operation Features and Controls

Details optional kits, switches, wire feed speed, and trigger operation.

Accessories

Optional Accessories

Lists optional kits, cables, and accessories for enhanced functionality.

Accessory Components

Details control cables, ground clamps, and gun receiver bushings.

Additional Accessories

Lists gun receiver bushing adapters and wire spool components.

Wire Cover and Stand Accessories

Covers wire covers, gas regulators, reel stands, and undercarriages.

Maintenance and Troubleshooting

Maintenance and Calibration

Covers safety, routine/periodic maintenance, and calibration procedures.

Maintenance Procedures

Steps for specific maintenance tasks like wraparound screw installation.

Troubleshooting Guide

Instructions for diagnosing and resolving machine malfunctions.

Troubleshooting Common Issues

Addresses output problems like no feed, erratic feed, or trigger issues.

Troubleshooting Arc and Gas Flow Issues

Covers arc, gas flow, burnback, and motor thermal LED issues.

Diagrams, Prints, and Policy

Wiring Diagram

Schematic showing electrical connections for the wire feeder.

Physical Dimensions

Visual representation of machine dimensions for different models.

Customer Assistance Policy

Outlines Lincoln Electric's policy on customer advice and product support.

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