Husqvarna 465, 460, 455e manual Fuel Handling

Page 19

FUEL HANDLING

Fuel

Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of petrol and two- stroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture.

!

WARNING! Always ensure there is

adequate ventilation when handling fuel.

 

Petrol

•Use good quality unleaded or leaded petrol.

•The lowest recommended octane grade is 90 (RON). If you run the engine on a lower octane grade than 90 so-called knocking can occur. This gives rise to a high engine temperature and increased bearing load, which can result in serious engine damage.

•When working with continuous high revs (e.g. limbing) a higher octane is recommended.

Environment fuel

HUSQVARNA recommends the use of alkylate fuel, either Aspen two-stroke fuel or environmental fuel for four-stroke engines blended with two-stroke oil as set out below.

Ethanol fuel

HUSQVARNA recommends commercial available fuel with maximum 10% ethanol content.

Running-in

Avoid running at a too high speed for extended periods during the first 10 hours.

Two-stroke oil

•For best results and performance use HUSQVARNA two-stroke engine oil, which is specially formulated for our air-cooled two-stroke engines.

•Never use two-stroke oil intended for water-cooled engines, sometimes referred to as outboard oil (rated TCW).

•Never use oil intended for four-stroke engines.

•A poor oil quality and/or too high oil/fuel ratio may jeopardise function and decrease the life time of catalytic converters.

Mixing ratio

1:50 (2%) with HUSQVARNA two-stroke oil.

1:33 (3%) with oils class JASO FB or ISO EGB formulated for air-cooled, two-stroke engines.

Petrol, litre

Two-stroke oil, litre

 

 

 

 

2% (1:50)

3% (1:33)

 

 

 

5

0,10

0,15

 

 

 

10

0,20

0,30

 

 

 

15

0,30

0,45

 

 

 

20

0,40

0,60

 

 

 

Mixing

•Always mix the petrol and oil in a clean container intended for fuel.

•Always start by filling half the amount of the petrol to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of petrol.

•Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank.

•Do not mix more than one month’s supply of fuel at a time.

•If the machine is not used for some time the fuel tank should be emptied and cleaned.

Chain oil

•We recommend the use of special oil (chain oil) with good adhesion characteristics.

•Never use waste oil. This results in damage to the oil pump, the bar and the chain.

•It is important to use oil of the right grade (suitable viscosity range) to suit the air temperature.

•In temperatures below 0°C (32°F) some oils become too viscous. This can overload the oil pump and result in damage to the oil pump components.

•Contact your service agent when choosing chain oil.

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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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