Husqvarna 465, 460, 455e manual Maintenance, General, Carburettor adjustment

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MAINTENANCE

General

The user must only carry out the maintenance and service work described in this Operator's Manual. More extensive work must be carried out by an authorized service workshop.

Carburettor adjustment

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.

AutoTune

If the engine is equipped with AutoTune, manual adjustment of the carburettor’s H and L needles and the T- screw no longer applies. Both needles and the T-screw have been removed. AutoTune is a function that adjusts the carburettor electronically, always resulting in optimal adjustment.

!

WARNING! If the saw chain rotates while

idling, contact your servicing dealer. Do

 

 

not use the chain saw until it has been

 

properly adjusted or repaired.

Function

•The carburettor controls the speed of the engine via the throttle. Air/fuel is mixed in the carburettor. This air/ fuel mixture is adjustable.

•The automatic adjustment of the carburettor means that the engine is adapted to local conditions, e.g. the climate, altitude, petrol and the type of 2-stroke oil. This function is controlled by AutoTune.

Engine adjustment

The following steps should be taken when the chain saw is started for the first time or when outside circumstances change (fuel, altitude, air filter etc.):Start the engine.

Accelerate the engine and saw a number of cuts in a thick log (3-5 min.).

The chain saw must be run (8,000 - 12,000 rpm) the entire time so that the carburettor can adjust itself.

Conditions

NOTE! The ignition system includes an in-built speed limiter. When the speed governor is activated, you will get the same sound experience as when the chain saw 4- cycles.

Checking, maintaining and servicing chain saw safety equipment

Note! All service and repair work on the machine demands special training. This is especially true of the machine’s safety equipment. If your machine fails any of the checks described below we recommend that you take it to your service workshop.

Chain brake and front hand guard

Checking brake band wear

Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake.

Regularly check that the brake band is at least 0,6 mm thick at its thinnest point.

Checking the front hand guard

Make sure the front hand guard is not damaged and that there are no visible defects such as cracks.

Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover.

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Contents English Symbols on the machine KEY to SymbolsSymbols in the operator’s manual Contents Dear Customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Chain catcher Throttle lockoutRight hand guard Muffler Stop switchCutting equipment Vibration damping systemCutting equipment designed to reduce kickback General rulesGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain 455e Rancher II, 455e Rancher II TrioBrake Rancher II, 460 Rancher II, 465 RancherLubricating cutting equipment Needle bearing lubrication Filling with chain oilChecking chain lubrication Chain drive sprocketGuide bar Fitting the bar and chain AssemblyWorking with the chain Fitting a spike bumper Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageCold engine Starting and StoppingStarting and stopping StartingStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Basic cutting technique Safe distance Tree felling techniqueClearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut What is kickback? How to avoid kickbackFreeing a tree that has fallen badly Cutting the trunk into logs Carburettor adjustment MaintenanceGeneral Checking the inertia brake release Muffler Changing a broken recoil spring StarterChanging a broken or worn starter cord Tensioning the recoil springFitting the starter Air filterSpark plug Needle bearing lubricationCooling system Adjustment of the oil pumpAir Injection centrifugal cleaning Temperature 0C or colderTemperature -5C or colder Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataRancher Engine Saw chain filing and file gauges Guide bar and saw chain combinationsApplies to Europe only EC-declaration of conformityEN ISO 121002010, ISO 149821998, EN ISO Page Original instructions 1154135-26
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455, 455e, 460, 465 specifications

The Husqvarna 460 and 455 series chainsaws are some of the most popular models in their class, recognized for their reliability, performance, and advanced technology. These machines are designed to meet the demands of both professionals and enthusiasts who require powerful tools for cutting firewood, felling trees, or performing tree maintenance.

The Husqvarna 460 is equipped with a robust 60.3 cc engine that delivers impressive power and efficiency. With a power output of approximately 3.6 kW, this chainsaw is capable of handling ambitious cutting tasks with ease. The design of the 460 includes a low-vibration system that significantly reduces operator fatigue during extended use. This is achieved through effective isolating features that dampen vibrations transferred to the user's hands, allowing for more comfortable operation over longer periods.

One of the standout features of the Husqvarna 460 is its X-Torq engine technology. This innovative design reduces fuel consumption by up to 20% while also decreasing harmful exhaust emissions. This is increasingly important for environmentally conscious users, as it allows for a greener operation without compromising performance. The chainsaw is also equipped with an air injection system that effectively removes larger particles from the air before they reach the filtration system, ensuring cleaner air intake and extending the lifespan of the air filter.

On the other hand, the Husqvarna 455 Rancher is another exceptional model known for its versatility and robust design. Featuring a slightly smaller 55.5 cc engine, it offers a solid power output of around 2.6 kW, making it suitable for a wide range of tasks from cutting firewood to clearing brush. The 455 Rancher shares many of the same technological advancements as the 460, including the X-Torq engine and low-vibration technology, providing users with similar benefits in terms of efficiency and comfort.

Both models feature an adjustable oil pump for better chain lubrication, ensuring smooth operation and prolonging the chain's life. Additionally, the easy access air filter and tool-less chain tensioning allow for quick maintenance and adjustments in the field, making them user-friendly choices.

Overall, the Husqvarna 460 and 455 series chainsaws combine power, efficiency, and advanced technology, catering to the needs of both casual users and professionals alike. Their thoughtful design and robust performance establish them as reliable tools in any cutting task, making them a top choice for those in need of high-quality chainsaws.
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