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.
		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.

English – 17

1151375-95, 338XPT EPA III specifications

The Husqvarna 338XPT is a powerful chainsaw designed specifically for professionals who require reliability and performance in demanding environments. One of its standout features is the lightweight design, making it easy to maneuver while still delivering impressive power. Weighing in at just over 10 pounds, the 338XPT allows users to work for extended periods without fatigue, making it an ideal choice for arborists and forestry workers.

At the heart of the Husqvarna 338XPT is its efficient engine, which not only provides robust cutting performance but is also designed with EPA III compliance in mind. This means the machine adheres to strict environmental regulations, producing lower emissions while ensuring a high power output. The X-Torq engine technology is one of the key innovations that contribute to its efficiency. This technology reduces fuel consumption by up to 20% while also decreasing harmful exhaust emissions. This dual benefit makes the 338XPT a viable option for users who prioritize both performance and environmental responsibility.

Another notable characteristic of the Husqvarna 338XPT is its advanced air filtration system, which enhances the durability of the engine by ensuring that only clean air reaches it. The centrifuge air cleaning system significantly prolongs the time between filter cleanings, allowing users to focus more on their work and less on maintenance. This feature is particularly beneficial in dusty or dirty job sites, ensuring optimal performance in various conditions.

Comfort and usability are also central to the design of the 338XPT. The chainsaw includes an ergonomic handle that allows for better control during operation, reducing vibrations and enhancing user comfort. Additionally, the chainsaw's easy-access chain tensioning system makes adjusting the chain as simple as possible, ensuring that users can quickly get back to their tasks at hand without unnecessary delays.

For safety-conscious users, the Husqvarna 338XPT is equipped with features like a combined choke/stop control that allows for easy starting and reduces the risk of engine flooding. Furthermore, the chainsaw's inherent balance and lightweight structure contribute to safer handling and operation.

In summary, the Husqvarna 338XPT EPA III is a top-of-the-line chainsaw that combines power, efficiency, and user-friendly features, making it a prime choice for professionals in the forestry and arborist fields. Its robust engine technology, advanced air filtration, and ergonomic design ensure that you can tackle any job with confidence and ease.