Jonsered BC2053, BC2043 manual Maintenance, Carburettor, Muffler, Cooling system, Air filter

Page 21

MAINTENANCE

Carburettor

Adjusting the idle speed (T)

Check that the air filter is clean. When the idle speed is correct, the cutting attachment should not rotate. If adjustment is required, close (turn clockwise) the idle adjustment screw T, with the engine running, until the cutting attachment starts to rotate. Open (turn anticlockwise) the screw until the cutting attachment stops. The idle speed is correctly set when the engine runs smoothly in all positions, and there is a clear margin to the speed at which the cutting attachment starts to rotate.

WARNING! If the idle speed cannot be

!adjusted so that the cutting attachment stops, contact your dealer/service workshop. Do not use the machine until it has been correctly adjusted or repaired.

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.

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.

34

21

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.

English – 21

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Operator′s manual Symbols KEY to SymbolsContents Dear Customer IntroductionWhat is what? What is WHAT?Personal protective equipment General Safety PrecautionsStop switch Machine′s safety equipmentThrottle lockout Cutting attachment guardVibration damping system Quick releaseMuffler Locking nut Cutting equipmentCutting equipment General rulesTrimmer head Sharpening grass cutters and grass bladesConnecting throttle cable and stop switch wires AssemblyFitting the main body Fitting the handlebarFitting a blade guard, grass blade and grass cutter Assembling the cutting equipmentStandard harness Adjusting the harness and clearing sawFuel safety Fuel HandlingFuel Mixing FuellingCheck before starting Starting and StoppingStarting and stopping StartingWarm engine StoppingWorking Techniques Basic safety rulesGeneral working instructions Basic working techniquesGrass trimming with a trimmer head Grass clearing using a grass bladeTrimming ClearingSweeping Carburettor MaintenanceMuffler Cooling systemBevel gear Cleaning the air filterSpark plug Oiling the air filterMaintenance Daily Weekly Monthly Maintenance scheduleTechnical data Technical DataEC-declaration of conformity Applies to Europe only Approved accessories Type Cutting attachment guard, Art. noPoly Trim Tap n’ Go 35 Spin Tap n’Go 45 Spin Tap n’Go 55 Spin Trimmy SII Page 1152665-26 ´z+TbT¶6v¨ ´z+TbT¶6v¨

BC2053, BC2043 specifications

The Jonsered BC2043 and BC2053 are powerful brushcutters designed for both professional landscapers and avid gardening enthusiasts. Known for their robust build and reliability, these machines stand out for their capability to handle a variety of vegetation types, from thick underbrush to tough weeds.

One of the main features of both models is their lightweight design, which allows for easy maneuverability during use. The ergonomic handle layout reduces fatigue, making them suitable for prolonged use without discomfort. The BC2043 weighs approximately 10.5 kg, while the BC2053 is slightly heavier due to its enhanced power capabilities. This thoughtful engineering ensures that users can manage demanding tasks with less strain.

Both models are equipped with a high-performance engine that delivers impressive torque and efficiency. The BC2043 features a 43cc engine, while the BC2053 boasts a more powerful 53cc engine. This increase in capacity allows the BC2053 to handle tougher jobs, enabling users to clear dense brush and thick grass with ease. Additionally, both engines utilize advanced technology for reduced emissions and lower fuel consumption, aligning with modern environmental standards.

An outstanding characteristic of the Jonsered BC2043 and BC2053 is their innovative cutting systems. Equipped with a dual-line cutting head and the option to attach various blades, these machines provide versatility in tackling different types of vegetation. The adjustable cutting width allows users to choose between a narrower cut for precision work or a wider cut for larger areas, significantly improving efficiency.

Maintenance is simplified with these models, as they feature easy-access air filters and convenient starting systems. The quick start technology minimizes pull force required to start the engine, making it user-friendly even for those less experienced with power tools.

In summary, the Jonsered BC2043 and BC2053 represent a perfect blend of power, usability, and innovation. With their ergonomic designs, robust engines, and versatile cutting capabilities, they cater to a wide range of landscaping needs. Whether for professional use or personal gardening projects, both brushcutters deliver exceptional performance and reliability, ensuring that users can achieve excellent results in their outdoor endeavors.
Top Page Image Contents