Fuel Handling

Fuel

Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of gasoline 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.

Gasoline

•Use good quality unleaded gasoline.

•CAUTION! Engines equipped with catalytic converters must be run on unleaded fuel mixtures.

•Leaded gasoline will destroy the catalytic converter and it will no longer serve its purpose. The green fuel cap on saws ﬁtted with catalytic converters means that only unleaded gasoline can be used.

•The lowest recommended octane grade is 87 ((RON+MON)/2). If you run the engine on a lower octane grade than 87 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 or environmental fuel for four-stroke engines blended with two- stroke oil as set out below. Note that carburetor adjustment may be necessary when changing the type of fuel (see instructions under the heading Carburetor).

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.

Mixing ratio

1:50 (2%) for all engines.

Gasoline, litre	Two-stroke oil, litre

	2% (1:50)

5	0,10

10	0,43/0,20

15	0,30

20	0,40

US gallon	US ﬂ. oz.

1	2 1/2

2 1/2	6 1/2

5	12 7/8

Mixing

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

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

•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 32°F (0°C) 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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345e, 345, 346XP, 353 specifications

Husqvarna is renowned for crafting high-performance chainsaws, and the models 345e, 345, 346XP, and 353 are prime examples of their engineering excellence. Each of these chainsaws is designed to cater to the needs of both professionals and enthusiasts, boasting impressive features and advanced technology.

The Husqvarna 345e is a powerful yet lightweight chainsaw. It is equipped with a 50.2cc engine, delivering an impressive output of 3.0 horsepower. Its X-Torq technology reduces fuel consumption and emissions, making it an environmentally friendly option. Additionally, the chainsaw features an ergonomic design, ensuring comfort during prolonged use. The LowVib technology minimizes vibrations, reducing operator fatigue.

Next in line, the Husqvarna 345 is similar in many respects to the 345e but focuses on providing a robust and reliable performance. It also features a 50.2cc engine and utilizes X-Torq technology for optimal fuel efficiency and low emissions. One of the standout features of the 345 is its tool-less chain tensioning system, allowing for easy adjustments without the need for additional tools. This is particularly advantageous for users who require quick adjustments in the field.

The Husqvarna 346XP is a favorite among professionals, designed for heavy-duty tasks. Its X-Torq engine delivers exceptional power, while its lightweight construction enhances maneuverability. The 346XP features Air Injection technology, which reduces the amount of dust and debris that enters the air filter, prolonging the life of the chainsaw. Additionally, the chainsaw’s adjustable oil pump ensures that the chain receives the right amount of lubrication, optimizing performance and longevity.

The Husqvarna 353 is built for versatility and performance. With a 50cc engine, it provides ample power for a wide range of cutting tasks. Its innovative features include a robust crankshaft designed for higher revolutions, enhancing overall performance. The 353 also incorporates the innovative Smart Start technology, making it easier to start the engine with minimal effort. Its ergonomic design ensures comfortable operation, reducing fatigue during extended use.

In summary, the Husqvarna 345e, 345, 346XP, and 353 chainsaws are distinguished by their advanced technologies and user-friendly features. Whether for professional use or as a reliable tool for everyday tasks, these models exemplify Husqvarna’s commitment to quality, efficiency, and performance.