Husqvarna 550XP Mark II Parts Manual V3

Husqvarna 550XP Mark II Chainsaw manual cover

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Year 2020

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Husqvarna 550XP Mark II Chainsaw Specification

The Husqvarna 550XP Mark II Chainsaw is a high-performance tool engineered for professional forestry and tree care applications, offering advanced features for enhanced efficiency and reliability. It is powered by a robust 50.1cc X-Torq engine that delivers superior power while reducing fuel consumption and emissions, conforming to stringent environmental regulations. The chainsaw is designed with an AutoTune system that automatically adjusts the engine settings for optimal performance under varying conditions, eliminating the need for manual carburetor adjustments.

The 550XP Mark II includes an innovative air injection system that removes dust and debris before reaching the air filter, extending its lifespan and maintaining peak performance. Its low-weight design, coupled with an ergonomic rear handle and anti-vibration technology, ensures user comfort and reduces fatigue during prolonged use. The chainsaw features a 20-inch bar with a high-speed chain that provides swift and precise cutting capabilities, making it suitable for demanding tasks.

Durability is enhanced through its magnesium crankcase and robust construction designed to withstand rigorous use. The chainsaw also incorporates a quick-release air filter for easy cleaning and replacement, along with a side-mounted chain tensioner for convenient chain adjustments. Safety features include an inertia-activated chain brake that significantly reduces the risk of injury during operation. The Husqvarna 550XP Mark II's combination of power, efficiency, and user-centric design makes it a versatile and reliable choice for professionals seeking a high-quality chainsaw.

Husqvarna 550XP Mark II Chainsaw F.A.Q.

How do I start the Husqvarna 550XP Mark II Chainsaw?

To start the Husqvarna 550XP Mark II Chainsaw, first ensure the chain brake is engaged. Then, activate the decompression valve and set the choke. Pull the starter handle until the engine fires, then push the choke back in and pull again until the engine starts.

What type of fuel and oil mixture should I use for the Husqvarna 550XP Mark II?

Use a 50:1 ratio of unleaded gasoline to high-quality 2-stroke engine oil for the Husqvarna 550XP Mark II Chainsaw. Ensure the gasoline has an octane rating of at least 89.

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

If the chainsaw won't start, check the fuel level and mixture, ensure the spark plug is clean and properly connected, and confirm the air filter is not clogged. Also, ensure the decompression valve and choke are properly set.

How often should I sharpen the chain on my Husqvarna 550XP Mark II?

The chain should be sharpened every time you refuel the chainsaw, or whenever you notice it is cutting inefficiently or producing sawdust instead of wood chips.

What maintenance is required for the Husqvarna 550XP Mark II chainsaw?

Regular maintenance includes cleaning the air filter, checking and replacing the spark plug as needed, lubricating the chain, and checking the chain tension. Inspect the chainsaw for any loose bolts or worn parts.

How do I adjust the chain tension on my chainsaw?

To adjust the chain tension, loosen the bar nuts slightly, then turn the tensioning screw clockwise to tighten the chain or counterclockwise to loosen it. Ensure the chain is snug against the bar but can still be pulled around by hand.

What safety precautions should I take while using the chainsaw?

Always wear protective gear, including gloves, goggles, ear protection, and chainsaw chaps. Ensure you have a firm grip and stable footing, and keep bystanders at a safe distance. Use the chainsaw's safety features, such as the chain brake.

How do I clean the air filter on my Husqvarna 550XP Mark II?

To clean the air filter, remove the cover and take out the filter. Wash it with warm, soapy water, rinse thoroughly, and allow it to dry completely before reinstalling. Replace the filter if it is damaged or excessively dirty.

Why is my Husqvarna 550XP Mark II chainsaw overheating?

Overheating can be caused by a dirty air filter, an incorrect fuel mixture, or a dull chain. Ensure proper airflow by cleaning the air filter and use the correct fuel mixture. Sharpen the chain regularly to prevent excess strain on the engine.

How do I store my chainsaw when not in use?

When storing your chainsaw, clean it thoroughly, empty the fuel tank, and run the engine until it stops to clear the carburetor. Store it in a dry place and consider removing the chain and bar to prevent rust.