Husqvarna 439 Parts Manual

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Year 2019

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Husqvarna 439 Chainsaw Specification

The Husqvarna 439 Chainsaw is a compact and lightweight tool designed for professional arborists and domestic users requiring efficient cutting performance. Boasting a 35.2cc X-Torq® engine, this chainsaw offers reduced fuel consumption and lower exhaust emissions, aligning with stringent environmental regulations. The engine delivers sufficient power and efficiency for a wide range of cutting tasks, ensuring optimal performance with a maximum power speed of 10,000 RPM.

The chainsaw features a 16-inch bar, providing versatility for cutting small to medium-sized trees and branches. Its ergonomic design includes a well-balanced body with LowVib® technology, which minimizes vibration levels and enhances user comfort during prolonged use. The chainsaw's total weight is just over 7.5 pounds without the cutting equipment, making it easy to handle and maneuver.

Safety is a key component in the Husqvarna 439, equipped with an inertia-activated chain brake that reduces the risk of kickback injuries. The side-mounted chain tensioner allows for quick and easy adjustments, enhancing operational efficiency. The air injection centrifugal air cleaning system extends engine life by removing larger dust and debris particles before they reach the air filter.

For ease of maintenance, the chainsaw includes a quick-release air filter and a snap-lock cylinder cover, facilitating swift cleaning and replacement tasks. The fuel tank capacity is 0.69 US pints, while the oil tank holds up to 0.36 US pints, ensuring adequate lubrication for the chain and bar. With its advanced features and reliable performance, the Husqvarna 439 Chainsaw is a versatile tool suitable for various cutting applications, providing users with an effective combination of power, safety, and ease of use.

Husqvarna 439 Chainsaw F.A.Q.

What is the correct fuel mixture for the Husqvarna 439 chainsaw?

The correct fuel mixture for the Husqvarna 439 chainsaw is 50:1, which means 2.6 ounces of two-stroke oil should be mixed with one gallon of gasoline.

How do I troubleshoot starting issues with my Husqvarna 439 chainsaw?

To troubleshoot starting issues, ensure the chainsaw has fresh fuel, check the spark plug for wear or carbon buildup, and ensure the air filter is clean. Additionally, verify that the on/off switch is in the "on" position.

How often should I clean the air filter on my Husqvarna 439?

The air filter should be checked and cleaned after every 5 hours of operation or more frequently if used in a dusty environment.

What type of chain oil is recommended for the Husqvarna 439 chainsaw?

Husqvarna recommends using a high-quality bar and chain oil for optimal performance and to extend the life of the chain and bar.

How can I adjust the chain tension on my Husqvarna 439 chainsaw?

To adjust the chain tension, first turn off the chainsaw and allow it to cool. Then, loosen the bar nuts and turn the tensioning screw clockwise to tighten the chain or counterclockwise to loosen it. Ensure the chain fits snugly against the bar with slight slack.

What are the maintenance steps for the Husqvarna 439 chainsaw after use?

After use, clean the chainsaw to remove sawdust and debris, check the chain tension, inspect the bar and chain for wear, clean or replace the air filter, and ensure the fuel and oil levels are adequate.

How do I replace the spark plug on the Husqvarna 439 chainsaw?

To replace the spark plug, disconnect the spark plug wire, use a spark plug wrench to remove the old plug, and install a new, properly gapped spark plug. Reattach the spark plug wire securely.

Why does my Husqvarna 439 chainsaw chain keep coming off?

The chain may come off due to improper tension, worn out chain or bar, or incorrect installation. Ensure the chain is properly tensioned, check for wear, and confirm correct installation.

How do I sharpen the chain on my Husqvarna 439?

To sharpen the chain, use a round file and file guide to sharpen each cutter at a consistent angle, typically 30 degrees. Ensure all cutters are the same length and maintain the depth gauges as needed.

What should I do if my Husqvarna 439 chainsaw is overheating?

If the chainsaw is overheating, check for blockages in the air intake or exhaust, ensure the air filter is clean, verify proper fuel mixture, and allow the saw to cool down periodically during heavy use.