Husqvarna 261 manual Air filter, Muffler, Adjustment of the oil pump, Spark plug

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MAINTENANCE

Air filter

The air filter must be regularly cleaned from dust and dirt in order to avoid:

•Carburetor malfunctions

•Starting problems

•Engine power reduction

•Unnecessary wear on

the engine parts

• Abnormal fuel consumption

Clean the air filter daily or more often if the air is exceptionally dusty in the working area.

•Disassemble the air filter by removing the cylinder cover and unscrew the filter.

When reassembling, make sure that the filter is tight against the filter holder. Clean the filter by brushing or shaking it.

•A more thorough cleaning of the filter is obtained by washing it in water and soap.

An air filter, which is used for some time, cannot be cleaned completely. Therefore it must be replaced by a new one, with regular intervals. IMPORTANT! A damaged air filter must always be replaced.

Muffler

The muffler is designed in order to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material. Some mufflers are equipped with special screens. If your saw has this type of muffler, you should clean the screens at least once a week. This is done with a wire brush.

Note! This muffler has a dual exhaust outlet and has therefore also two screens.

CAUTION! The screens must be replaced, if damaged. The saw will be overheated, if the screens are clogged. This results in damage on the cylinder and the piston. Never use a saw with a clogged or defective muffler.

Adjustment of the oil pump

The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The saw is supplied from the factory set to 1 turn open. Turning the screw clockwise will reduce the oil

Spark plug

The spark plug condition is influenced by:

•An incorrect carburetor setting.

•Wrong fuel mixture (too much oil in the gasoline).

•A dirty air filter.

These factors cause deposits on the spark plug electrodes, which may result in malfunction and starting difficulties.

flow and turning the screw anti-clockwise will increase the oil flow.

!WARNING! The engine must not be running when making adjustments.

Recommended settings:

Bar 11"-15": 0-2 turns from the closed position.

Bar 15"-18": 2-3 turns from the closed position.

Needle bearing maintenance

If the engine is low on power, difficult to start or runs poorly at idling speed,

The clutch drum is equipped with one of the following chain sprockets:

A

always check the spark plug first. If the spark plug is dirty, clean it and check the electrode gap. Readjust if necessary. The correct gap is 0,5 mm (0,020"). The spark plug should be replaced after about a month in operation or earlier if the electrodes are badly eroded.

• Spur sprocket (A) (the chain sprocket is welded on the drum)

•Rim sprocket (B) (exchangeable)

Both versions have built-in

B

needle bearing at the drive

shaft, whitch has to be

 

greased regularly (once a

 

week).

 

IMPORTANT! Always use the recommended spark plug type. An incorrect spark plug can severely damage the piston/ cylinder.

NOTE! Use only high quality bearing grease.

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Contents 101 90 261Symbols KEY to SymbolsContents Chain SAW Safety Equipment Safety InstructionsPersonal Protective Equipment Chain brake and front hand guard Chain catcher Throttle lockRight hand guard Vibration damping system Stop switchMuffler Checking the brake trigger Checking brake band wearChecking the front hand guard Checking the inertia brake releaseThrottle lock 5 basic rules Cutting EquipmentSome terms that describe the bar and chain Cutting equipment designed to minimise kickbackBar Saw chainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting raker clearanceSharpening cutting teeth Setting the raker clearance General advice on setting raker clearanceTensioning the chain Chain oil Lubricating cutting equipmentFilling with chain oil Lubricating the bar tip sprocket Checking chain lubricationLubricating the clutch drum bearing Checking wear on cutting equipmentWhat is kickback? HOW to Avoid KickbackDo not let go of the handles General rulesMin m General Safety Precautions10 ft General Working Instructions Basic safety rulesCutting Basic cutting techniqueGeneral TermsFelling direction Tree felling techniqueSafe distance LimbingFelling Clearing the trunk and preparing your retreatCutting trees and branches that are in tension Preparations Freeing a tree that has fallen badly = high accident riskCutting the trunk into logs Freeing a Trapped treeWhat is WHAT? Mounting guide bar and chain AssemblyFuelmix Fuel HandlingMin 3 m Fuelling10ft Warm engine Start and StopStart Cold engineCarburetor MaintenanceTensioning the recoil spring Starter device assemblyStarter device Changing a broken or worn starter cordMuffler Adjustment of the oil pumpNeedle bearing maintenance Air filterCooling system Centrifugal cleaning Air InjectionTemperature 0oC 32oF or colder Temperature -5oC 23oF or colderMonthly maintenance Weekly maintenance Daily maintenance261 Technical DataYour Warranty Rights Obligations Federal Emission Control Warranty Statement1998W48

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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