FUEL HANDLING

Fuelmix

IMPORTANT! The chain saw is equipped with a two-stroke engine and must always been run using a mixture of gasoline and two-stroke engine 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.

!Always provide for good ventilation when handling fuel.

Gasoline

•This engine is certified to operate on unleaded gasoline.

•Use good quality unleaded

gasoline.

• The lowest recommended octane rating is 87. If you run the engine on lower octane rating than 87 so- called “knocking“ can occur. This leads to an increased engine temperature, which can result in a serious engine breakdown.

•When working at continuous high revs a higher octane rating is recommended.

Two-stroke oil

•For the best results use HUSQVARNA two-stroke oil, which is especially developed for chain saws. Mixing ratio 1:50 (2%).

•Never use two-stroke oil intended for water cooled outboard engines, so-called, outboard oil.

•Never use oil intended for four-stroke engines.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gasoline

Oil

 

 

 

 

 

 

 

 

 

2%(1:50)

 

 

 

 

 

 

 

 

 

 

Lit.

Lit.

 

 

 

 

 

 

 

 

 

 

 

 

5

 

0,10

 

 

10

 

0,20

 

 

15

 

0,30

 

 

20

 

0,40

 

 

 

 

US

US

 

 

 

gallon

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 saw’s fuel tank.

•Do not mix more than max. one month’s supply of fuel.

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

•This engine is certified to operate on unleaded gasoline.

Chain oil

•The chain lubrication system is automatic. Always use special chain oil with good adhesive characteristics.

•In countries where no special chain oil is available, EP 90 transmission oil can be used.

•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 viscosity according to the air temperature.

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

•Contact your servicing dealer when choosing chain oil.

26 – English

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Image 26
Husqvarna 261 manual Fuel Handling, Fuelmix
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261 specifications

The Husqvarna 261 is a robust and versatile chainsaw designed for professional use, particularly appealing to forestry workers, and those engaged in tree care and maintenance. This model stands out for its balance of power and lightweight design, making it an excellent choice for those who need a reliable tool for extended use.

One of the standout features of the Husqvarna 261 is its efficient 50.1cc engine, which delivers impressive cutting performance while maintaining low fuel consumption. This model incorporates a X-Torq engine technology that reduces emissions, making it an environmentally friendly option that complies with stringent regulations. Users can benefit from increased torque over a wide RPM range, resulting in optimal cutting performance even in tough conditions.

Another significant characteristic of the Husqvarna 261 is its LowVib technology. This system effectively reduces vibrations, allowing operators to work longer with minimal fatigue. The ergonomic design of the chainsaw, combined with a comfortable grip, further enhances user control and reduces strain during operation.

Safety is a priority in the design of the Husqvarna 261. It is equipped with an inertia chain brake that stops the chain immediately in case of kickback, protecting the user from potential injury. The chainsaw also features an adjustable oil pump, allowing for precise lubrication of the chain according to the user's specific needs, thus prolonging the life of both the chain and the guide bar.

The air filtration system is another key feature that sets the Husqvarna 261 apart. The innovative design includes a three-piece air filter that effectively keeps dust and debris from entering the engine, ensuring long-lasting performance and reduced maintenance. Furthermore, the quick-release cover allows for easy access to the air filter and spark plug, simplifying routine maintenance tasks.

Overall, the Husqvarna 261 combines advanced technology with user-friendly features, making it a standout choice for professionals who require reliability and performance. Its robust design, coupled with safety features and efficient engine technology, ensures that it can handle the demanding tasks across various cutting applications, establishing it as a preferred tool in the chainsaw market. Whether for logging, landscaping, or general tree work, the Husqvarna 261 is engineered to meet and exceed the expectations of discerning users.
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