Northern Tools Chainsaw Sharpener Manual

The Northern Tools Chainsaw Sharpener is a precision tool designed for sharpening chainsaw blades efficiently and accurately. It features adjustable angles, a powerful motor, a durable grinding wheel, safety guards, and easy-to-use clamping mechanisms. Suitable for various chain sizes and pitches, it helps maintain optimal cutting performance and extends chain life. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Instructions 3. Unpacking and Components 4. Specifications 5. Setup and Assembly 6. Operating Instructions 7. Angle and Depth Settings 8. Maintenance and Cleaning 9. Storage Guidelines 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Motor unit, grinding wheel, angle adjustment knob, chain vise, depth gauge tool, safety guard, and power cord.

Feature	Description
Motor	High-torque electric motor for consistent sharpening
Grinding Wheel	Durable abrasive wheel for sharpening cutter teeth
Angle Adjustment	Adjustable from 0° to 35° for different chain types
Chain Vise	Secure clamping mechanism to hold chain in place
Depth Gauge Tool	For setting proper depth gauge height
Safety Guard	Protective cover over grinding wheel
On/Off Switch	Easy-access power control
Light	Integrated work light for better visibility
Portable Design	Compact and lightweight for workshop or field use
Compatibility	Fits most chain pitches (1/4", 3/8", .325", 3/4")

Safety Instructions

Always follow safety guidelines to prevent injury and damage.

Wear safety glasses and gloves during operation.
Ensure sharpener is unplugged during setup and maintenance.
Keep hands away from moving parts and grinding wheel.
Use in a well-ventilated area to avoid dust inhalation.
Do not operate if cord or plug is damaged.

WARNING! Never remove safety guard while sharpener is running. Disconnect power before making adjustments.

Unpacking and Components

Carefully unpack and verify all components are present.

Main sharpener unit with motor and wheel.
Chain vise assembly with clamping knobs.
Depth gauge tool and angle guide.
Hex key set for adjustments.
Power cord and instruction manual.

CAUTION! Inspect for shipping damage before use. Contact Northern Tools if parts are missing.

Specifications

Motor Power: 120V, 60Hz, 1.5 Amp.
Grinding Wheel: 4-1/2 inch diameter, 3/8 inch thickness.
Sharpening Angles: Adjustable 0° to 35°.
Chain Compatibility: Fits pitches 1/4", 3/8", .325", 3/4".
Weight: 8.5 lbs (3.86 kg).
Dimensions: 12" L x 8" W x 10" H.
Warranty: 1-year limited warranty.
Operating Temp: 32°F to 104°F (0°C to 40°C).

Setup and Assembly

Assemble sharpener on a stable, level workbench.

Mount unit: Secure base to workbench using provided screws.
Install grinding wheel: Ensure wheel is tight and guard is in place.
Attach chain vise: Align with sharpening path and tighten.
Connect power: Plug into grounded 120V outlet.
Test run: Turn on briefly to ensure smooth operation.

Tip: Allow motor to reach full speed before sharpening.

Operating Instructions

Follow steps for proper sharpening technique.

Secure chain: Place chain in vise, tighten to prevent movement.
Set angle: Adjust knob to recommended angle for your chain.
Position cutter: Align cutter tooth against grinding wheel.
Sharpen: Gently feed cutter into wheel; avoid excessive pressure.
Repeat: Rotate chain to next tooth; maintain consistent angle.
Check depth gauges: Use depth gauge tool to file gauges if needed.
Test chain: Install on saw and test cut in safe material.

WARNING! Do not overheat chain; sharpen in short bursts.

Angle and Depth Settings

Correct settings are crucial for optimal cutting.

Chain Type	Recommended Angle	Depth Gauge
Standard Chisel	30° to 35°	0.025"
Semi-Chisel	25° to 30°	0.030"
Low-Profile	20° to 25°	0.020"
Ripping Chain	10° to 15°	0.015"

Note: Refer to your chainsaw manual for specific settings.

Maintenance and Cleaning

Regular maintenance ensures longevity and performance.

Unplug before cleaning.
Clean grinding dust with soft brush or compressed air.
Inspect wheel for wear; replace if diameter below 3-1/2 inches.
Lubricate moving parts with light machine oil annually.
Check electrical cord for damage regularly.

CAUTION! Do not use solvents or water on electrical components.

Storage Guidelines

Store in dry, clean area to prevent rust and damage.

Cover sharpener when not in use.
Store in original box if possible.
Keep away from moisture and extreme temperatures.
Hang power cord neatly to avoid kinks.

Warranty Information

Northern Tools provides a 1-year limited warranty against defects in materials and workmanship. Warranty does not cover misuse, improper maintenance, or normal wear. For warranty service, contact Northern Tools Customer Service with proof of purchase. For support, visit www.northerntool.com or call 1-800-221-0516.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Motor won't start	Power issue/switch	Check outlet; ensure cord is plugged in; verify switch is on.
Poor sharpening	Dull wheel/angle	Replace grinding wheel; verify angle setting.
Chain moves in vise	Loose clamp	Tighten vise knobs securely.
Excessive sparking	Wrong pressure/wheel	Use lighter pressure; check wheel condition.
Overheating chain	Too much pressure	Sharpen in shorter intervals; let chain cool.
Uneven teeth	Inconsistent angle	Reset angle; use guide for each tooth.

Service: For technical assistance, contact Northern Tools at 1-800-221-0516 or visit www.northerntool.com.