Husqvarna 323RJ, 325RJX-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 323RJ 325RJX-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¶5¨ Page 1140270-95

323RJ, 325RJX-Series specifications

The Husqvarna 323RJ and 325RJX-Series are premier tools in the realm of multi-purpose trimming and landscaping equipment, crafted for both the professional landscaping user and the passionate homeowner. Renowned for their ergonomic design and advanced technology, these models stand out for their performance, efficiency, and innovation.

One of the key features of the Husqvarna 323RJ and 325RJX is their lightweight construction. Weighing significantly less than traditional trimmers, these tools provide users with the ability to work for extended periods without experiencing fatigue. This is especially beneficial for professionals who manage large landscapes and need to maintain productivity throughout the day.

Equipped with Husqvarna's powerful motors, the 323RJ and 325RJX deliver impressive power-to-weight ratios, allowing them to handle even the toughest jobs with ease. The 325RJX, in particular, is designed with a robust engine that ensures high efficiency while minimizing emissions, making it an environmentally conscious option. This aligns with the increasing demand for sustainable landscaping equipment.

The design of these models features an adjustable shaft, enabling users to customize their reach and comfort while eliminating strain on the user's arms and back. The unique angled head allows for easy trimming around obstacles, ensuring that even the most challenging areas can be maintained with precision.

In terms of technology, the Husqvarna 323RJ and 325RJX incorporate Smart Start and fuel pump features that make starting the engine incredibly easy. Users benefit from reduced resistance in the starter cord, translating to fewer pulls to get the equipment running smoothly. This is a significant advantage, particularly when long periods of inactivity might occur during a project.

Additionally, both models are equipped with dual-line tap-and-go cutting systems, promoting efficient weed trimming and allowing users to quickly release more line as needed, enhancing productivity. The ergonomic handles provide a comfortable grip, and features such as the anti-vibration system minimize fatigue, a critical aspect for prolonged use.

Overall, the Husqvarna 323RJ and 325RJX-Series represent the forefront of trimming technology. With their blend of lightweight design, powerful performance, comfort features, and eco-friendly operation, these tools are essential for any serious landscaper looking to achieve remarkable results with efficiency and ease.
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