Husqvarna 268K, 272K manual Spark plug, Cooling system, Silencer

Page 20

MAINTENANCE

Spark plug

The condition of the spark plug

Cooling system

To maintain as low an operating temperature as possible the power cutter is equipped with a cooling system.

is affected by:

An incorrect carburettor setting.

An incorrect fuel mixture (too much oil).

A dirty air filter.

These factors cause deposits on the spark plug electrode that may result in malfunction or starting difficulties.

If the machine is low on power, difficult to start or runs poorly while idling always check the spark plug first. If the spark plug is dirty, clean it and at the same time check that the electrode gap is 0.5 mm. The spark plug should be changed after about one month of operation or earlier if necessary.

The cooling system consists of:

1.An air intake on the starter unit.

2.Air flow guide.

3.Cooling fins on the flywheel.

4.Cooling fins on the cylinder

5.Cylinder cover (leads cold air onto the cylinder).

Clean the cooling system using a brush at least once a week, in difficult conditions more often. A dirty or blocked cooling system leads to the engine overheating resulting in damage to the cylinder and piston.

5

4

3

2

1

NOTE! Always use the recommended type of spark plug. (see chapter ”Technical data”)! An incorrect spark plug can damage the cylinder/piston.

Silencer

The silencer is designed to dampen the noise level and to direct the exhaust fumes away from the user. The exhaust fumes are hot and can contain sparks, which can result in fire if the exhaust fumes are directed towards a dry or inflammable material. Some silencers are fitted with a special spark arrest screen.

If your power cutter is fitted with this type of silencer then the screen should be cleaned at least once a week. This is done using a wire brush.

NOTE! If the screen is damaged in anyway it should be replaced. If the screen is blocked this will result in the engine overheating and damage to the cylinder and piston. Never use a power cutter with a defective silencer.

20 – English

Image 20
Contents 268K/272K 101 87 70-27Symbols in the Operators Manual Symbol ExplanationSymbols on the power cutter Contents Safety Instructions Personal Safety EquipmentPower CUTTER’S Safety Equipment Stop switchSilencer Disc guard for the cutting discGeneral Safety Instructions Transport and storageFuel safety Basic safety precautionsGeneral Working Instructions CuttingKickback Water coolingCare and storage GeneralCutting Discs and Blades Abrasive discsHigh speed portable tools Special discsUsing diamond discs Cutting discsDiamond discs Dry diamond discsWhat is WHAT? What is what on a power cutter?Assembly Fitting the cutting head Fitting the cutting discChecking the drive shaft and flanges Disc guardFuelling Fuel HandlingFuel mixture Start and Stop Start and stopChanging the drive belt MaintenanceAdjusting the drive belt Carburettor Correctly adjusted carburettor Fuel filterAir filter High speed needle HStarter Replacing a broken or worn starter cordTensioning the recoil spring Replacing a broken recoil springSilencer Spark plugCooling system Monthly maintenance Daily maintenanceWeekly maintenance Cutting equipment Technical Data268K 272K English «*2m7§¬ 1998W17

268K, 272K specifications

The Husqvarna 268K and 272K are exemplary models in the realm of professional-grade brushcutters, celebrated for their power, versatility, and user-focused design. These machines are ideal for both demanding commercial applications and extensive gardening tasks, combining advanced technology with robust performance.

At the heart of the Husqvarna 268K and 272K is a powerful two-stroke engine that ensures high torque and performance. These engines are designed with efficiency in mind, delivering optimal power while minimizing fuel consumption and emissions. The X-Torq technology employed in these models reduces harmful exhaust emissions and increases fuel efficiency, making them an environmentally friendly option without compromising on performance. This innovative engine design allows users to maintain productivity during long hours of operation while being conscious of their ecological footprint.

Both models are equipped with an ergonomic design that enhances comfort during use. The handlebar system features soft-grip grips and adjustable components, allowing operators to customize their setup for maximum comfort and control. This attention to ergonomic detail significantly reduces fatigue during prolonged use, making the 268K and 272K ideal for professional landscapers and groundskeepers who tackle large areas on a daily basis.

In addition to the engine and ergonomic design, the cutting capabilities of these brushcutters are noteworthy. They come with a variety of cutting heads, including both trimmers and brushcutting blades, allowing users to tackle different types of vegetation effectively. The inclusion of a lightweight yet durable cutting head reduces overall weight without compromising on strength, which is crucial for efficiency and ease of use in tough conditions.

Convenience features are another highlight of the Husqvarna 268K and 272K. The easy starting system ensures users can get to work quickly, while the simple fuel and oil filling designs minimize downtime between uses. Maintenance is straightforward, with accessible air filters and other components that allow for quick servicing, ensuring the longevity and efficiency of the machines.

Overall, the Husqvarna 268K and 272K showcase a harmonious blend of power, comfort, and cutting efficiency, making them indispensable tools for professionals and DIY enthusiasts alike. Whether it's clearing dense underbrush or trimming grass in hard-to-reach areas, these brushcutters are engineered to deliver outstanding performance and reliability in every task.