Husqvarna 326RJ manual Maintenance, Carburetor

Page 20

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

20 – English

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Contents 326RJX-series KEY to Symbols SymbolsContents Introduction Dear customerWhat is WHAT? What is what on the trimmer?General Safety Precautions Personal protective equipmentThrottle lockout Machine′s safety equipmentStop switch Muffler Cutting attachment guardVibration damping system Cutting equipment Cutting equipmentLocking nut Sharpening grass cutters and grass blades Trimmer headAssembling the cutting equipment AssemblyFitting the J-handle Fitting other guards and cutting attachments Fuel Fuel safetyFuel Handling Fueling MixingStarting and Stopping Check before startingStarting and stopping StartingStopping Basic safety rules Working TechniquesGeneral working instructions Basic working techniquesGrass clearing using a grass blade Grass trimming with a trimmer headSweeping Maintenance CarburetorHigh speed jet H Correctly adjusted carburetorMuffler Cleaning the air filter Cooling systemSpark plug Air filterBevel gear Maintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataMANUFACTURER′S Warranty Coverage Federal and California Emissions Control Warranty Statement Super Auto Page Trimmy H Click Trimmy Hit Pro S35 ´z+RN¶5,¨ T35, T35x 1150465-95 ´z+RN¶5,¨ ´z+RN¶5,¨

326RJ specifications

The Husqvarna 326RJ is an innovative addition to the line of string trimmers that caters to both residential and commercial users looking for efficiency and power. Designed with a focus on ergonomic handling and versatility, the 326RJ allows users to tackle various landscaping tasks with ease.

One of the standout features of the Husqvarna 326RJ is its lightweight design, weighing in at just under 10 pounds. This makes it easy to maneuver in tight spaces and reduces fatigue during extended use. The trimmer is powered by a robust 25cc two-stroke engine, which delivers reliable performance and a strong power-to-weight ratio, ensuring that it can handle tough grass and weeds without compromising speed.

Equipped with an efficient X-Torq engine, the Husqvarna 326RJ significantly reduces fuel consumption and minimizes harmful exhaust emissions. This technology not only makes it an environmentally friendly option but also means longer operating times between fuel refills. Users can expect optimal performance while minimizing their carbon footprint.

The ergonomics of the 326RJ are enhanced by the adjustable handle and comfortable grip, allowing for a customizable fit that suits various body types and working conditions. The anti-vibration technology further enhances user comfort by reducing the amount of vibration transmitted to the operator's hands, making long jobs significantly less taxing.

In terms of versatility, the Husqvarna 326RJ is designed to be compatible with a range of optional attachments. This compatibility allows it to not only function as a string trimmer but also perform tasks such as edging and brush cutting, making it a multi-functional tool for landscapers and homeowners alike.

The trimmer features a semi-automatic feed system, which ensures that the trimming line is fed out automatically when tapped on the ground. This keeps the workflow uninterrupted and allows users to focus more on their landscaping tasks without the need to frequently stop to adjust the line.

Overall, the Husqvarna 326RJ combines power, efficiency, and user comfort with a suite of advanced technologies that make it a valuable tool for anyone looking to maintain their lawn or garden. With its blend of features and innovative design, it remains a popular choice among both professionals and DIY enthusiasts.