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Chicago Electric 91110 User Manual

Chicago Electric 91110
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INVERTER ARC WELDER -
80 AMP
Model
91110
SET UP AND OPERATING INSTRUCTIONS
Distributed exclusively by Harbor Freight Tools
®
.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright
©
2004 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.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised 08b
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Chicago Electric 91110 Specifications

General IconGeneral
BrandChicago Electric
Model91110
CategoryWelding System
LanguageEnglish

Summary

Setup and Operating Instructions

Specifications

Save This Manual

Unpacking Instructions

General Safety Rules

Work Area Safety

Keep work area clean, well lit, and free from clutter to prevent accidents.

Electrical Safety

Electrical Safety Precautions

Covers grounding, double insulation, avoiding contact with grounded surfaces, and cord care for safe operation.

Personal Safety

Personal Safety Precautions

Emphasizes staying alert, proper dress, avoiding accidental starts, and maintaining balance during operation.

Tool Use and Care

Tool Handling and Operation

Secure workpieces, use correct tools, ensure switch functionality, and disconnect power before adjustments.

Tool Maintenance and Best Practices

Maintain tools, check for damage, use recommended accessories, and ensure proper fit and alignment.

Service Procedures

Qualified Service and Parts

Tool service and parts replacement must be done by qualified personnel using identical parts.

Specific Safety Rules

Safe Working Environment

Maintain a well-lit work area, free from obstructions, and avoid flammable chemicals and vapors.

Handling Hazardous Fumes

Welding fumes are toxic. Use ventilation and respirator to protect against health risks like cancer and heart disease.

General Safety Practices

Covers cord care, maintenance unplugging, storage, avoiding alcohol/drugs, and using PPE like safety glasses and gloves.

Industrial and Maintenance Safety

Follow OSHA, maintain product, check for damage, proper grounding, avoid lifting cables, and handle electrode correctly.

Environmental and Electrical Safety

Avoid water use, keep dry, prevent electrical contact, use rubber soles, handle power failures, and protect from arc rays.

Operational Safety and Ventilation

Use fire extinguisher, avoid confined spaces, manage fumes, use ventilation/respirator, and be aware of radiation.

Product Use and Warnings

Use right tool, replacement parts, product warnings (lead/chemicals), pacemaker precautions, and common sense.

Grounding

Grounding Requirements

Details proper grounding for tools with three-prong plugs and requirements for outlets.

Double Insulated Tools

Explains double insulated tools and their compatibility with two-prong outlets.

Extension Cords

Extension Cord Selection

Guidance on choosing extension cords based on amperage, length, and tool type (grounded vs. double insulated).

Assembly and Operating Instructions

Connecting Components

Steps for connecting the electrode holder, ground clamp, and power cord for initial setup.

Initial Operation Setup

Instructions for wearing safety glasses and setting the potentiometer knob to mid-range for starting.

Welding Process

Positioning the electrode, creating an arc, moving along the workpiece, and adjusting current output.

Electrode Size and Amp Chart

A chart detailing electrode diameter, recommended amp range, and plate thickness for welding.

Completing the Weld

Turning off the welder, unplugging the power cord, and removing the ground clamp after finishing.

Inspection, Maintenance, and Cleaning

Pre-Operation Checks

Inspect wiring, connections, parts for damage. Clean or replace electrodes. Store unit safely and cleanly.

Troubleshooting Guide

Unit Not Turning On

Check power cord connection and quick plug connections if the welder does not turn on.

Arc Striking Issues

Verify electrode attachment, quick plug connections, and ground clamp connection for proper arc striking.

Overload Protection Light

Address overheating by allowing the unit to cool. Check fan operation and vent obstructions.

Unstable Current Output

Ensure power cord connection and check quick plugs, ground clamp, and electrode condition for stable output.

Please Read the Following Carefully

Parts List

Assembly Diagram

Limited 90 Day Warranty

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