Jonsered GR41/50 manual Muffler, Cooling system, Air filter, Correctly adjusted carburetor

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MAINTENANCE

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine will accelerate without hesitation and burble a little at maximum speed. It is also important that the cutting attachment does not rotate at idle. If the low speed jet L is set too lean it may cause starting difficulties and poor acceleration. If the high speed jet H is set too lean it will result in less power, less performance, poor acceleration and/or damage to the engine. If both the L and H jets are set too rich it will results in acceleration problems or too low a working speed.

Muffler

CAUTION! Some mufflers are fitted with a catalytic converter. See chapter on Technical data to see whether your machine is fitted with a catalytic converter.

The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material. 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.

RS44RS52

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).

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.

Air filter

The air filter must be regularly cleaned to remove dust and dirt in order to avoid:

•Carburettor malfunctions

•Starting problems

•Loss of engine power

•Unnecessary wear to engine parts

•Excessive fuel consumption.

Clean the filter every 25 hours, or more regularly if conditions are exceptionally dusty.

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Contents Operator’s manual EPA Symbols KEY to SymbolsContents Dear customer IntroductionWhat is what on the clearing saw? RS44 What is WHAT?What is what on the clearing saw? RS52 Personal protective equipment General Safety PrecautionsMachine′s safety equipment Stop switchThrottle lock Muffler Cutting attachment guardVibration damping system Quick releaseLocking screw Locking nutCutting equipment Cutting equipmentSharpening grass cutters and grass blades Trimmer head Sharpening the saw bladeAssembly Transport position, handlebarFitting a blade guard, grass blade and grass cutter Fitting the blade guard and saw blade Blade guard a is fitted using 4 screws L as shownAdjusting the harness and clearing saw Fitting other guards and cutting attachmentsStandard harness Adjusting the harness Vector harnessCorrect balance Fuel safety Fuel HandlingFuel Mixing FuelingCold engine Starting and StoppingCheck before starting Starting and stoppingStopping StartingABC of clearing Basic safety rulesWorking Techniques General working instructionsBrush cutting with a saw blade Forestry clearing using a saw bladeGrass trimming with a trimmer head Grass clearing using a grass bladeSweeping Carburetor MaintenanceHigh speed jet H RS52 Fine adjustment of the idle speed TLow speed jet L High speed jet H GR41, GR50, RS44Air filter Correctly adjusted carburetorMuffler Cooling systemCleaning the air filter Bevel gearSpark plug Maintenance Daily Weekly Monthly Maintenance scheduleTechnical data Technical DataYour Warranty Rights and Obligations Federal Emission Control Warranty StatementTrimmy SII Page ´z+R!o¶5*¨ Page 1150017-95 ´z+R!o¶5*¨ ´z+R!o¶5*¨

GR41/50 specifications

The Jonsered GR41/50 is a robust and versatile garden tractor designed for both commercial and residential use. Known for its reliability and efficient performance, this model has become a preferred choice among landscaping professionals and homeowners alike.

One of the standout features of the Jonsered GR41/50 is its powerful engine. It typically comes equipped with a 500cc gasoline engine that ensures optimal performance. This engine provides ample power for tackling a variety of tasks, from mowing large lawns to handling more demanding gardening activities. The automatic transmission allows for smooth and effortless operation, enabling users to focus on their gardening tasks without the distraction of manual gear shifting.

The GR41/50 boasts a robust cutting deck, usually available in multiple sizes, allowing users to select the right width for their specific needs. The cutting height can often be adjusted easily, ensuring precision lawn care while catering to different grass types and growing conditions. This feature is particularly useful for achieving a well-maintained and healthy lawn throughout the changing seasons.

In terms of technology, the Jonsered GR41/50 features advanced steering mechanisms, often with a tight turning radius, making it easy to navigate around obstacles in the garden. This agility enhances productivity and ensures that users can cover ground more efficiently. Additionally, many models come equipped with ergonomic seating and controls, promoting comfort during prolonged use and reducing operator fatigue.

Durability is another significant aspect of the Jonsered GR41/50. Built with high-quality materials, this garden tractor is designed to withstand the rigors of frequent use. The sturdy frame and reliable components contribute to its long lifespan, making it a wise investment for those seeking a reliable gardening machine.

Moreover, the GR41/50 often includes a range of attachments and accessories, such as plows, tow-behind trailers, and snow removal equipment, transforming it into a multi-functional tool for year-round use. This versatility not only maximizes its utility but also provides excellent value for users.

In summary, the Jonsered GR41/50 is a well-rounded garden tractor that combines power, technology, and durability. With its remarkable features, user-friendly design, and adaptability to various tasks, it stands out as a top choice for anyone looking to enhance their gardening and landscaping efficiency.
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