Husqvarna 327LDX-series manual Maintenance, Carburettor

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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.

•Adjusting the carburettor means that the engine is adapted to local operating conditions, e.g. climate, altitude, petrol 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.

18 – English

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Contents 327LDX-series Operator of the machine must Ensure, while working, that no KEY to SymbolsSymbols Persons or animals come closerContents Introduction Dear CustomerWhat is WHAT? What is what?General Safety Precautions Personal protective equipmentMachine′s safety equipment Throttle lockoutVibration damping system Stop switchCutting attachment guard MufflerCutting equipment Trimmer headFitting the loop handle AssemblyAssembly Assembling and dismantling the two-piece shaftAssembling the cutting equipment Fitting the trimmer guard and trimmer headFuel safety Fuel HandlingFuel Fuelling MixingStarting and stopping Starting and StoppingCheck before starting StartingStopping Basic safety rules Working TechniquesGeneral working instructions Basic working techniques Grass trimming with a trimmer headMaintenance CarburettorLow speed jet L Fine adjustment of the idle speed TCorrectly adjusted carburettor High speed jet HSpark plug MufflerCooling system Remember the risk of fireAir filter Cleaning the air filterTwo-piece shaft Oiling the air filterBevel gear Maintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataEC-declaration of conformity Applies to Europe only Approved accessories Type Cutting attachment guard, Art. noApproved accessories Art No Use with Attachments Art No Use withPage S35 2,7mm 095-.106 25 m 15 cm T35, T35x T25 Page Page Page Page Page 1151209-26 ´z+S4¶6¨ ´z+S4¶6¨

327LDX-series specifications

The Husqvarna 327LDX-series is a remarkable line of versatile, powerful trimmers designed for both professional landscapers and passionate homeowners. Known for their durability and performance, these trimmers boast features that make them ideal for tackling various outdoor tasks, from trimming grass to maintaining garden edges.

A standout characteristic of the 327LDX series is its lightweight design. Weighing in at just a few kilograms, the trimmers are easy to maneuver, reducing fatigue during extended use. This ergonomic design is complemented by an adjustable handle, allowing users to customize their grip for maximum comfort. Additionally, the split shaft design enables seamless attachment swapping, making it convenient to switch between different tools, such as brush cutters or pole saws.

One of the most impressive aspects of the 327LDX series is its powerful engine. Equipped with a reliable X-Torq engine, these trimmers provide excellent fuel efficiency while significantly reducing harmful emissions. The engine’s design ensures a high torque at lower RPMs, which enhances performance and prolongs the lifespan of the machine. Whether handling thick grass or tough weeds, the 327LDX series delivers consistent power, allowing users to finish jobs efficiently.

The trimmer heads in the 327LDX series are designed for ease of use and efficiency. With the easy-to-load trimmer head, users can quickly and effectively re-string the unit, minimizing downtime. The Auto Return Stop Switch also adds convenience, as it automatically resets to the ON position, making it easy to start the machine again after use.

Furthermore, the Husqvarna 327LDX series is designed with innovative technologies to enhance user experience. The LowVib system helps reduce vibrations during operation, providing a smoother experience and minimizing strain on the hands and arms. This feature is particularly beneficial for professionals who spend long hours trimming and maintaining landscapes.

In summary, the Husqvarna 327LDX-series stands out in the realm of outdoor power equipment. With its lightweight, ergonomic design, powerful X-Torq engine, and user-friendly features, it provides an exceptional balance of performance and comfort. Whether you're a professional landscaper or a homeowner seeking to maintain a pristine garden, the 327LDX series is an excellent choice that promises reliability and effectiveness in every task.
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