Chicago Electric 40388 User Manual

ARC WELDER - 120
Model 40388
SET UP AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
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®
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Failure to do so can result in serious injury.
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1999 by Harbor Freight Tools
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Revised Cover Page 03b; 04k; 07j

Chicago Electric 40388 Specifications

General

Amperage	90 A
Input Voltage	120 V
Electrode Size	0.030 in - 0.035 in
Welding Type	Flux Core
Duty Cycle	20% at 90 A
Wire Size	0.030 in, 0.035 in

Summary

Safety Warnings and Precautions

General Safety Precautions

Covers essential safety precautions like work area, children, tool use, and dress code.

Personal Safety and Tool Handling

Details on eye/ear protection, overreaching, tool maintenance, and avoiding unintentional starts.

Specific Safety Advisories

Covers replacement parts, alcohol/drug influence, pacemakers, and California Prop 65 warning.

Arc Welding Specific Hazards

Precautions for fire, explosion, electric shock, fumes, and arc light during welding.

Setup, Assembly, and Installation

Component Assembly

Electrode Holder Assembly

Power Plug Wiring

Guidance on wiring the power plug for 115V or 230V operation, including wire identification.

Wiring, Workplace, and Operation

Wiring Diagram and Setup

Workplace Safety Environment

Measures for electrical safety, managing fumes, sparks, fire, and arc light.

Controls and Amperage Adjustment

Arc Welding Fundamentals and Procedure

Welding Success Tips

Troubleshooting and Weld Quality

Troubleshooting Common Welding Defects