Husqvarna 325HE3 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.

•The setting of the carburetor 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.

Fine adjustment of the idle speed T

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.

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Contents Operator’s manual EPA KEY to Symbols SymbolsContents Machine′s safety equipment Safety InstructionsPersonal protective equipment Muffler Vibration damping systemCutter guard 325HDA55 Hand guard Blades Gear housingCutter guard General safety precautions Fuel safetyStarting Transport and storageSafety instructions when using the hedge trimmer Safety instructions regarding the surroundingsSafety instructions while working Safety instructions after completing workBasic working techniques Changing the hedge trimmer angleWhat is WHAT? What is what?Assembly Fuel Fuel HandlingFuelling Starting and Stopping Check before startingStarting and stopping Cold engineStopping Maintenance CarburettorMuffler Correctly adjusted carburettorHigh speed jet H Cleaning the air filter Cooling systemSpark plug Air filterCleaning and lubrication Gear housingMaintenance schedule Technical Data Technical dataFederal Emission Control Warranty Statement Your Warranty Rights and Obligations1140176-95

325HE3 specifications

The Husqvarna 325HE3 is an advanced, reliable, and versatile professional hedge trimmer designed for both efficiency and comfort. This robust tool is well-suited for landscapers, gardeners, and maintenance professionals who require powerful performance in various trimming and shaping tasks.

One of the key features of the 325HE3 is its powerful 25.4cc X-Torq engine. This engine technology ensures maximum power output while minimizing fuel consumption and exhaust emissions. This makes the trimmer not only environmentally friendly but also cost-effective for prolonged use. The lightweight design of the engine contributes to lower overall weight, enhancing maneuverability during operation.

The Husqvarna 325HE3 boasts a unique articulated cutting head with a 135-degree range of adjustment. This allows for precise cutting at various angles, ensuring that users can reach tight spots and trim hedges effectively without straining their bodies. The cutting blades are double-sided and are constructed from hardened steel, providing long-lasting sharpness and durability while minimizing wear and tear.

Comfort is a major consideration in the design of the 325HE3. It features a cushioned rear handle and an ergonomic front handle that allows for a firm grip and reduces vibration during use. This ergonomic design helps reduce operator fatigue, enabling longer periods of operation without discomfort. The trimmer also comes equipped with a protective blade cover that ensures safety during storage and transport.

In addition, the Husqvarna 325HE3 incorporates advanced technologies such as LowVib, which minimizes vibrations during operation, contributing to user comfort and reducing the risk of long-term injuries. The air filtration system is designed to prolong engine life and enhance performance by keeping the airflow clean and efficient.

The ease of maintenance is also a highlight of the Husqvarna 325HE3. The easily accessible components allow for quick inspections and servicing, making it user-friendly for people seeking to keep their equipment in top condition.

Overall, the Husqvarna 325HE3 is a professional-grade hedge trimmer that seamlessly combines power, ergonomics, and advanced features, making it a preferred choice for those who demand excellence in their landscaping tools. Whether for commercial use or personal gardening projects, it stands out as a reliable companion for all trimming needs.
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