Husqvarna 327HE4x-series, 327HDA65x series, 327HE3 x-series manual Maintenance, Carburetor, Muffler

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.

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 blades move while the engine is idling the T screw should be turned anti-clockwise until they stop.

Adjustment of the idle speed

Before any adjustments are made, make sure that the air filter is clean and the air filter cover is fitted.

Adjust the idle speed with the idle adjustment screw T, if adjustment is necessary. First turn the idle adjustment screw T clockwise until the blades start to move. Then turn the idle adjustment screw T anticlockwise until the blades stop. The idle speed is correctly adjusted when the engine runs smoothly in every position. There should also be a clear margin to the speed at which the blades start to move.

The blades must also remain stationary when the choke control is in the start throttle position.

Rec. idle 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.

Muffler

CAUTION! Some mufflers are fitted with a catalytic converter. See chapter on Technical data to see whether your machine is fitted with a catalytic converter.

The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may

20 – English

Page 19 Page 21
Image 20
Page 19 Page 21
Contents 327HDA65X-series KEY to Symbols SymbolsContents Introduction Dear customerWhat is WHAT? What is what?General Safety Precautions Personal protective equipmentMachine′s safety equipment Throttle lockoutStop switch Hand guardVibration damping system MufflerBlades Blade guardGear Assembly Adjusting the harnessFitting the hand guard and loop handle Fitting the handleFitting the impact guard Fuel Fuel safetyFuel Handling Fueling MixingStarting and Stopping Check before startingStarting and stopping StartingStopping Safety instructions regarding the surroundings Safety instructions while workingWorking Techniques General working instructionsChanging the hedge trimmer angle Safety instructions after completing workBasic working techniques When you adjust the angle. The blades Transport positionAre sharp and you could easily cut YourselfMuffler MaintenanceCarburetor Cooling system Spark plugCleaning the air filter Air filterGear Oiling the air filterCleaning and lubrication Maintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataYour Warranty Rights and Obligations Emission Warranty Parts List Original instructions 1155690-95

327HE4x-series, 327HE3 x-series, 327HDA65x series specifications

The Husqvarna 327HDA65x series, 327HE4x-series, and 327HE3x-series are advanced hedge trimmers designed for both professional landscapers and homeowners who demand high performance and reliability. Each model in these series showcases Husqvarna’s commitment to innovation, ergonomics, and efficiency, making them some of the best choices in the market for hedge trimming.

Starting with the 327HDA65x series, these hedge trimmers are equipped with powerful engines that provide superior cutting performance. One of the standout features is the long-lasting, dual-sided cutting blades that ensure precision and efficiency, allowing users to tackle various hedge sizes with ease. The lightweight design combined with a well-balanced structure facilitates ease of use, reducing fatigue during extended trimming sessions. Additionally, the adjustable rear handle promotes a comfortable grip, enhancing control and maneuverability.

Moving over to the 327HE4x-series, these trimmers feature a robust, professional-grade engine design, optimized for performance and fuel efficiency. The 327HE4x models also incorporate articulated cutting heads, which allow for excellent reach and cutting angles, making it easier to trim high or hard-to-reach areas. The low vibration system significantly reduces operator fatigue, while the high blade speed ensures clean cuts that promote healthy growth in trimmed plants. With easier start technology, these models enable a reliable start in various weather conditions.

The 327HE3x-series further emphasizes user-friendly features, designed for an impressive combination of power and simplicity. These trimmers maintain the same high-quality blades found in the other series but often come with an emphasis on convenience features like easier blade adjustments for quicker maintenance and superior cutting efficiency. The 327HE3x models are particularly well-suited for residential users who require a reliable tool for their garden care.

Overall, what sets the 327HDA65x, 327HE4x, and 327HE3x-series apart is Husqvarna’s focus on durability, ergonomic design, and advanced cutting technology. Whether you are a professional landscaper or a dedicated gardener, these hedge trimmers provide the performance and versatility needed to achieve beautifully maintained hedges and shrubs. For anyone looking to invest in a quality hedge trimming solution, exploring the offerings in these series is a step towards achieving professional-grade results in lawn care.
Top Page Image Contents