Husqvarna 326RJX-Series manual Maintenance, Carburettor

Page 19

MAINTENANCE

Carburettor

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

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

•The carburettor 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 carburettor 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 carburettor 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.

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Contents 326RJX-series Symbols KEY to SymbolsContents Machine′s safety equipment Safety InstructionsPersonal protective equipment Locking nut Vibration damping systemMuffler Cutting equipmentNever use a machine that has a faulty muffler Safety Instructions Sharpening grass cutters and grass blades Cutting equipmentTrimmer head Transport and storage General safety precautionsFuel safety StartingBasic working techniques Basic safety rulesGrass clearing using a grass blade General working instructionsTrimming Grass trimming using a trimmer head and plastic bladesWhat is what on the trimmer? What is WHAT?Fitting the J-handle AssemblyFitting blades and trimmer heads Fitting other guards and cutting attachments Two-stroke oil Fuel HandlingFuel GasolineFuelling Check before starting Starting and StoppingStarting and stopping Stopping Carburettor MaintenanceHigh speed jet H Fine adjustment of the idle speed TCorrectly adjusted carburettor MufflerAir filter Cleaning the air filterCooling system Spark plugMonthly maintenance Maintenance scheduleDaily maintenance Weekly maintenanceTechnical data Technical DataYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSuper Auto Super Auto II Page Trimmy H Click Trimmy Hit Pro S35 25 m T35 Page ´z+H¶5s¨ Page 1140275-95 ´z+H¶5s¨ ´z+H¶5s¨

326RJX-Series specifications

The Husqvarna 326RJX-Series is a versatile and robust line of trimmers designed for both professional landscapers and avid gardeners. Known for their durability and superior performance, these trimmers excel in various applications, from maintaining residential yards to handling large commercial landscaping tasks.

One of the standout features of the 326RJX-Series is its powerful yet efficient engine. Equipped with Husqvarna's X-Torq technology, these trimmers deliver high power output while significantly reducing fuel consumption and emissions. This makes them an environmentally friendly choice without sacrificing performance. The engines are designed to start easily, ensuring that users can quickly get to work without frustration.

The lightweight design of the 326RJX-Series enhances maneuverability, allowing operators to work for extended periods without excessive fatigue. This is particularly beneficial for professional users who require reliability and efficiency throughout their day. Additionally, the adjustable handle makes it easy to customize the ergonomics, providing users with a comfortable grip and control during operation.

Another notable characteristic of the 326RJX-Series is its range of cutting attachments. The trimmers are compatible with a variety of cutting heads, including nylon line and metal blades, making them suitable for tackling different types of vegetation. With a quick-release mechanism, users can effortlessly switch between attachments, enhancing versatility and efficiency in the field.

Husqvarna also places emphasis on safety and ease of use. The 326RJX-Series is equipped with features such as an effective air filter system that enhances engine longevity by protecting it from dust and debris. Furthermore, the trimmers come with a dual-line head that enables users to achieve a cleaner finish while minimizing the time spent on maintenance.

The built-in vibration dampening system reduces fatigue by minimizing vibration transfer to the user's hands, making prolonged use much more comfortable. This system exemplifies Husqvarna's commitment to user-friendly design and promotes a safer working environment.

In summary, the Husqvarna 326RJX-Series trimmers combine powerful performance with cutting-edge technologies, ensuring efficient and effective operation for a variety of tasks. With features designed for comfort, safety, and versatility, these trimmers stand out as a top choice for professionals and home enthusiasts alike. Whether tackling tough overgrowth or precision trimming, the 326RJX-Series consistently delivers exceptional results.
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