Husqvarna 525RXT, 525RK manual Cooling system, Spark plug

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MAINTENANCE

Some mufflers are equipped with a special spark arrestor mesh. If your machine has this type of muffler, you should clean the mesh at least once a week. This is best done with a wire brush. On mufflers without a catalytic converter the mesh should be cleaned weekly, or replaced if necessary. On mufflers fitted with a catalytic converter the mesh should be checked, and if necessary cleaned, monthly. If the mesh is damaged it should be replaced. If the mesh is frequently blocked, this can be a sign that the performance of the catalytic converter is impaired. Contact your dealer to inspect the muffler. A blocked mesh will cause the machine to overheat and result in damage to the cylinder and piston.

CAUTION! Never use a machine with a defective muffler.

WARNING! Mufflers fitted with catalytic

! converters get very hot during use and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin.

Remember the risk of fire!

Cooling system

To keep the working temperature as low as possible the machine is equipped with a cooling system.

The cooling system consists of:

1Air intake on the starter.

2Fins on the flywheel.

3Cooling fins on the cylinder.

4Cylinder cover (directs cold air over the cylinder).

5Muffler cover

6Muffler plate

Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.

Spark plug

The spark plug condition is influenced by:

•Incorrect carburettor adjustment.

•An incorrect fuel mixture (too much or incorrect type of oil).

•A dirty air filter.

These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.

If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0,65 mm. The spark plug should be replaced after about a month in operation or earlier if necessary.

0,65

CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder. Check that the spark plug is fitted with a suppressor.

26 – English

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Contents 525RX 525RXT 525RK Operator of the machine must Ensure, while working, that no KEY to SymbolsSymbols Persons or animals come closer thanContents Introduction Dear CustomerWhat is WHAT? What is what on the brush cutter?General Safety Precautions Personal protective equipmentMachine′s safety equipment Throttle lockoutVibration damping system Stop switchCutting attachment guard Muffler General rules Cutting equipmentCutting equipment Trimmer head Sharpening grass knifes and grass bladesSharpening the saw blade Fitting the handlebar AssemblyAssembly Assembling and dismantling the two-piece shaft 525RKDismantling Assembling the cutting equipmentFitting a blade guard, grass blade and grass cutter Cause serious personal injuryFitting the blade guard and saw blade Fitting other guards and cutting attachmentsAdjusting the harness and brush cutter Standard harnessFuel Fuel safetyFuel Handling Muffler gets very hot during and after FuelingMixing Use. This also applies during idling. BeStarting and stopping Starting and StoppingCheck before starting StartingStopping Never twist the starter cord around your handGeneral working instructions Basic safety rulesWorking Techniques ABC of clearing Forestry clearing using a saw blade Grass trimming with a trimmer head Grass clearing using a grass bladeBrush cutting with a saw blade TrimmingCutting SweepingMuffler MaintenanceCarburettor Cooling system Spark plugBevel gear Cleaning the air filterAir filter Two-piece shaft 525RKMaintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataApplies to Europe only Approved accessories Type Cutting attachment guard, Art. noEC Declaration of Conformity EN ISO 121002010, EN ISO 11806-12011, ISO 149821998, CisprPage Alloy Super Auto Super Auto II T25 T35, T35x Original instructions 1154807-26

525RXT, 525RK, 525RX specifications

The Husqvarna 525RX, 525RK, and 525RXT are top-of-the-line brushcutters designed for professional landscapers and homeowners alike. These models stand out for their powerful performance, ergonomic design, and advanced technology, making them ideal for tackling tough vegetation and maintaining landscapes.

Starting with the Husqvarna 525RX, this brushcutter is powered by a robust 25cc engine that delivers impressive power and efficiency. The Auto Return Stop Switch feature is a key innovation that allows the operator to easily start the machine by returning the stop switch to the ON position automatically after shutting it down. Additionally, the 525RX boasts a smart, lightweight design that reduces operator fatigue, making it suitable for extended use. Its harness system is well-padded and adjustable, ensuring comfort during long hours of work.

The 525RK model takes things a step further with its robust build designed for heavy-duty tasks. It features an aluminum shaft, providing enhanced durability while keeping the overall weight manageable. The 525RK is equipped with a high-performance engine similar to the 525RX but is optimized for even greater torque, making it perfect for cutting through thicker brush. Its Easy to Start system ensures a hassle-free ignition, while the innovative air filter system increases the interval between cleaning, ultimately reducing maintenance work.

The Husqvarna 525RXT is the flagship model in this series, combining the best features of the 525RX and 525RK. It is powered by an efficient 25cc engine that enables quick acceleration and exceptional cutting performance. One of its standout features is the Speed Feed trimmer head, which allows for quick and easy line reloading without disassembly, saving time and effort. Furthermore, the 525RXT has a unique X-Torq engine design that reduces fuel consumption and emissions while boosting power output, aligning with modern environmental standards.

All three models come with Husqvarna's intuitive design that includes adjustable handlebars for added user comfort. Moreover, they all integrate advanced vibration dampening systems to minimize operator fatigue. These brushcutters are equipped with durable and versatile cutting attachments, allowing users to switch between tasks effortlessly.

In conclusion, the Husqvarna 525RX, 525RK, and 525RXT are exceptional tools in the world of landscaping and vegetation management. Their blend of powerful engines, user-friendly features, and innovative technologies make them suitable for both professional landscapers and dedicated homeowners looking to maintain their properties efficiently. With these models, Husqvarna continues to uphold its reputation for quality and reliability in outdoor power equipment.
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