Husqvarna 326RX-Series 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 a blade guard, grass blade and grass cutter Fitting the blade guard and saw bladeFitting other guards and cutting attachments Fitting a trimmer guard and Superauto II 1 trimmer headAdjusting 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 dataFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsSuper Auto Page S35 ´z+RQ¶5Z¨ T35 1150264-95 ´z+RQ¶5Z¨ ´z+RQ¶5Z¨

326RX-Series specifications

The Husqvarna 326RX-Series is a versatile line of clearing saws designed for both professional landscapers and homeowners seeking high-performance tools for demanding terrain. Renowned for their robust construction and innovative technology, the 326RX-Series models are perfect for heavy-duty applications like brush clearing, tree trimming, and forest management.

One of the standout features of the 326RX-Series is its powerful engine. Equipped with a 25.4 cc 2-stroke engine, these clearing saws deliver impressive performance while maintaining fuel efficiency. The X-Torq technology reduces fuel consumption by up to 20%, leading to fewer emissions and a smaller environmental footprint. This makes the 326RX-Series not only a powerful option for users but also a more eco-friendly choice.

The ergonomics of the Husqvarna 326RX-Series are designed for user comfort and ease of use. The adjustable handle allows for personalized positioning, ensuring a comfortable grip during extended periods of operation. This is complemented by the anti-vibration system that mitigates the impact of frequent vibrations on the operator, reducing fatigue and enhancing control over the tool.

Safety is paramount in Husqvarna's design philosophy, and the 326RX-Series includes features to protect the user. The saw is equipped with a safety guard that deflects debris away from the operator, while the advanced stop switch ensures the engine can be quickly turned off in emergencies. Additionally, the saw’s lightweight design contributes to increased maneuverability, making it ideal for working in tight spaces.

The Husqvarna 326RX-Series offers versatility with a range of compatible cutting attachments. Whether you need to tackle thick brush or fine grass, you can easily switch out blades or trimmer heads to adapt to different tasks. This adaptability makes the 326RX-Series a valuable tool for landscape maintenance.

In conclusion, the Husqvarna 326RX-Series reflects a commitment to performance, comfort, and safety. With its powerful engine, ergonomic design, and versatile cutting options, it stands out as a premier choice for anyone looking to invest in a reliable clearing saw. Whether for professional landscaping or maintaining your garden, the 326RX-Series will meet your demanding needs with efficiency and ease.
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