Wen 3939

IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
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9-INCH BENCHTOP
BAND SAW
Instruction Manual
MODEL 3939, 3939T

Wen 3939 Specifications

General

Brand	Wen
Model	3939
Category	Saw
Language	English

Summary

General Safety Rules

Work Area Safety

Guidelines for maintaining a safe and organized work environment to prevent accidents.

Electrical Safety

Specific Rules for Your Bandsaw

Saw Blade Safety

Secure Your Workpiece

Personal Safety

Electrical Information

Grounding Instructions

Extension Cord Guidelines

Assembly & Adjustments

Assembling Your Band Saw

Adjusting the Blade Tracking

Steps to ensure the blade runs correctly on the wheels for optimal performance.

Adjusting Blade Tension

Instructions for setting the correct tension on the saw blade.

Raising and Lowering the Upper Blade Guide

Adjusting the Upper Guide Bearings

Procedure for setting the upper guide bearings for blade support and to prevent drift.

Adjusting the Lower Guide Bearings

Procedure for setting the lower guide bearings for blade support and to prevent drift.

Adjusting the Belt Tension

Steps to adjust the tension of the drive belt for proper operation.

Operation

General Cutting Guidelines

Changing Blades

Maintenance

Troubleshooting Guide

Common problems, their causes, and solutions for the band saw.