Husqvarna 326R manual Maintenance, Carburetor

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MAINTENANCE

Carburetor

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. After the engine has used 8-10 tanks of fuel the engine will be run-in.To ensure that it continues to run at peak performance and to minimise harmful exhaust emissions after the running-in period, ask your dealer/service workshop (who will have a rev counter at their disposal) to adjust your carburettor.

WARNING! The complete clutch cover and

!shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury.

Function

•The carburetor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburetor. The air/ fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.

•The setting of the carburetor means that the engine is adapted to local conditions, for example, the climate, altitude, fuel and the type of 2-stroke oil.

•The carburetor has three adjustment controls: L = Low speed jet

H = High speed jet

T = Idle adjustment screw

•The L and H-jets are used to adjust the supply of fuel to match the rate that air is admitted, which is controlled with the throttle. If they are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and if they are turned anti- clockwise the ratio becomes richer (more fuel). A lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed.

•The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed.

Basic setting

•The basic carburetor settings are adjusted during testing at the factory. The basic setting is richer than the optimal setting and should be maintained for the first few hours the machine is in use. The carburettor should then be finely adjusted. Fine adjustment should be carried out by a skilled technician.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti- clockwise until the cutting attachment stops.

Rec. idle speed 2700 rpm

Recommended max. speed: See the Technical data section.

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.

Fine adjustment

•When the machine has been ”run-in” the carburetor should be finely adjusted. The fine adjustment should be carried out by a qualified person. First adjust the L- jet, then the idling screw T and then the H-jet.

Conditions

•Before any adjustments are made, make sure that the air filter is clean and the air filter cover is fitted. If you adjust the carburettor when the air filter is dirty it will result in a leaner mixture when the filter is finally cleaned. This can lead to serious engine damage.

•Carefully turn both jets, L and H, so that they are midway between fully screwed in and fully screwed out.

•Do not attempt to adjust the L and H jets beyond either stop as this could cause damage.

•Now start the machine according to the starting instructions and let it warm up for 10 minutes.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti-clockwise until the cutting attachment stops.

Low speed jet L

Try to find the highest idling speed, turning the low speed needle L clockwise respectively counter-clockwise. When the highest speed has been found, turn the low speed needle L 1/ 4 turn counter-clockwise.

+ 1/4

L

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti- clockwise until the cutting attachment stops.

Fine adjustment of the idle speed T

Adjust the idle speed using the idle adjustment screw T, if it is necessary to readjust. First turn the idle adjustment screw T clockwise until the cutting attachment starts to rotate. Then turn the screw anticlockwise until the cutting attachment stops. The idle speed is correctly adjusted when the engine

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Contents 326RX-series KEY to Symbols SymbolsContents Introduction Dear customerWhat is WHAT? What is what?General Safety Precautions Personal protective equipmentMachine′s safety equipment Stop switchThrottle lockout Cutting attachment guard Vibration damping systemQuick release MufflerLocking nut Cutting equipment Cutting equipmentSharpening grass cutters and grass blades Sharpening the saw blade Trimmer headAssembly Fitting the handlebarTransport position, handlebar Assembling the cutting equipmentFitting the blade guard and saw blade Fit the drive disc B on the output shaftFitting other guards and cutting attachments Adjusting the harness and clearing saw Standard harnessSpreading the load on your shoulders Correct heightFuel safety Fuel HandlingFuel Fueling MixingStarting and Stopping Check before startingStarting and stopping StartingFor throttle handles with a start throttle lock StoppingBasic safety rules Working TechniquesGeneral working instructions ABC of clearingForestry clearing using a saw blade Working methodsGrass clearing using a grass blade Brush cutting with a saw bladeGrass trimming with a trimmer head TrimmingMaintenance CarburetorCorrectly adjusted carburetor Adjusting the start throttle speedHigh speed jet H Muffler Cooling systemBevel gear Cleaning the air filter Air filterSpark plug Oiling the air filterMaintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataMANUFACTURER′S Warranty Coverage Super Auto Page S35 ´z+RC=¶5v¨ T35 1150352-95 ´z+RC=¶5v¨ ´z+RC=¶5v¨

326R specifications

The Husqvarna 326R is a robust and versatile brushcutter designed for both professional landscapers and avid gardeners. Built with advanced technology and user-friendly features, this powerful tool excels in clearing heavy brush, maintaining grassy areas, and performing various landscaping tasks with precision.

One of the standout features of the Husqvarna 326R is its powerful 25.4cc, two-stroke engine. This engine delivers a high power-to-weight ratio, ensuring that users can tackle tough jobs without being weighed down. The engine is designed for ease of starting, thanks to its Smart Start system, which minimizes resistance in the starter cord. This means that the 326R starts effortlessly, allowing users to get to work quickly.

The ergonomic design of the 326R enhances user comfort during extended periods of operation. It features a balanced body that reduces strain on the arms and back, making it ideal for long hours of use. Additionally, the brushcutter is equipped with a comfortable harness and padded handles, ensuring that operators can maneuver the tool with ease.

Another significant aspect of the 326R is its cutting performance. It has a cutting width of 43 cm (17 inches), which provides an excellent balance between a wide cutting path and maneuverability in tight spaces. The brushcutter comes with a 4-tooth grass blade as well as a trimmer head, giving users the flexibility to switch between tasks efficiently.

Husqvarna has integrated advanced technologies into the 326R, including the LowVib system, which significantly reduces vibrations caused by the engine. This feature not only enhances comfort but also reduces fatigue during prolonged usage. Coupled with the air injection technology, which helps to keep the air filter cleaner for longer, the 326R ensures that maintenance remains low while performance stays high.

The lightweight design of the Husqvarna 326R also contributes to its ease of use. Weighing only approximately 5.5 kg (12.1 lbs), it can be easily carried and maneuvered around various terrains, making it suitable for different outdoor tasks.

Overall, the Husqvarna 326R is an exceptional brushcutter that combines power, efficiency, and user-friendly features, making it a top choice for anyone looking to maintain their property's landscape effectively. Whether trimming grass, clearing weeds, or overcoming thick brush, this versatile tool stands out in the competitive market of landscaping equipment.
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