Husqvarna H445 Parts Manual V2

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Year 2015

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Husqvarna H445 Chainsaw Specification

The Husqvarna H445 Chainsaw is engineered for efficiency and ease of use, making it an ideal tool for both professional and domestic users. It is powered by a robust 45.7cc X-Torq® engine, designed to reduce fuel consumption and emissions, in compliance with stringent environmental regulations. This chainsaw features a 16 to 18-inch bar length, suitable for medium-duty cutting tasks, balancing maneuverability and cutting performance. It incorporates an ergonomic design with a low vibration system, ensuring user comfort during extended periods of operation. The H445 is equipped with a centrifugal air cleaning system, which proactively removes larger dust and debris particles before reaching the air filter, thereby enhancing engine life and reducing maintenance frequency.

The quick-release air filter facilitates easy cleaning and replacement, while the side-mounted chain tensioner allows for swift adjustments. Featuring an inertia-activated chain brake, the H445 prioritizes user safety by minimizing the risk of kickback-related accidents. The smart start technology reduces starter cord resistance by up to 40%, ensuring effortless starting. It also includes a visible fuel level indicator, allowing users to monitor fuel consumption easily. With a total weight of approximately 10.8 pounds without the cutting equipment, the chainsaw offers a balanced and lightweight handling experience. The Husqvarna H445 Chainsaw is crafted to deliver reliable performance with features that emphasize durability, safety, and reduced environmental impact, making it a versatile tool for a wide range of cutting applications.

Husqvarna H445 Chainsaw F.A.Q.

How do I start my Husqvarna H445 chainsaw?

To start your Husqvarna H445 chainsaw, place it on a flat surface. Push the chain brake forward to activate it. Turn the switch to the ON position. Pull the choke out fully. Pull the starter handle until the engine fires. Push the choke back in halfway and pull again until the engine starts.

What is the correct fuel mixture for the Husqvarna H445?

The correct fuel mixture for the Husqvarna H445 is 50:1, which is 2.6 ounces of two-stroke oil per gallon of unleaded gasoline. Ensure the fuel is properly mixed before filling the chainsaw.

How can I troubleshoot a chainsaw that won't start?

If your chainsaw won't start, check the fuel mixture and ensure it is fresh. Inspect the spark plug for dirt or wear and replace if necessary. Make sure the air filter is clean and not clogged. Verify that the choke is set correctly and that the kill switch is in the ON position.

How do I properly maintain the chain on my H445 chainsaw?

To maintain the chain, regularly check for proper tension and adjust as needed. Keep the chain sharp using a suitable file. Clean the bar groove and oiling hole to ensure smooth operation. Lubricate the chain with chain oil before use.

What are the steps to replace the chain on my Husqvarna H445?

To replace the chain, first turn off the chainsaw and disconnect the spark plug. Remove the bar nuts and clutch cover. Carefully take off the old chain and bar. Fit the new chain onto the bar, ensuring the cutting edges face the correct direction. Reassemble the clutch cover and tighten the nuts. Adjust the chain tension properly.

How do I clean the air filter on my H445 chainsaw?

To clean the air filter, remove the top cover of the chainsaw. Take out the air filter and gently wash it with warm soapy water. Rinse thoroughly and let it dry completely before reinstalling. Ensure the filter is free of any dirt or debris before placing it back.

Why is my chainsaw chain not cutting properly?

If the chain is not cutting properly, it may be dull. Check for sharpness and file the cutters as needed. Ensure the chain is properly tensioned and lubricated. Also, verify that the chain is installed in the correct direction.

How often should I service my Husqvarna H445 chainsaw?

Regular maintenance should be performed after every 25 hours of use or at least once a year. This includes checking and cleaning the air filter, inspecting the spark plug, sharpening the chain, and checking the bar and chain lubrication.

What safety precautions should I take when using the H445 chainsaw?

Always wear appropriate protective equipment, including gloves, eye protection, and hearing protection. Ensure the chain brake is working before use. Operate the chainsaw with both hands and be aware of your surroundings. Avoid using the chainsaw in poor weather conditions or on unstable surfaces.

How do I store my Husqvarna H445 chainsaw when not in use?

When storing your chainsaw, clean it thoroughly and empty the fuel tank. Run the engine until it stops to clear the carburetor of fuel. Store the chainsaw in a dry place, away from direct sunlight or moisture. Keep it out of reach of children and unauthorized users.