Husqvarna 953900764, 953900756, 953900757 3 4 7 9, Carburetor adjustment, Routine maintenance

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After stopping the engine the rotating parts, blade or nylon string head, keep spinning

by inertia for a few seconds. Grip the machine

firmly until they stop. In case of emergency the above delay can be abbreviated by scraping the blade supporting cup parallel on the ground.

G. Carburetor adjustment

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Your machine can be equipped with a low emis- sion carburetor. We recommend that you have any adjustment of the carburetor made exclusive- ly by an authorized service center, which disposes of special equipment for ensuring the best per- formance with the lowest emissions. To adjust the speed to the minimum, turn the screw marked (T) as shown: With the engine running and well warmed up, turn the screw (T) gently clockwise, until the engine rotates at regular speed (stead noise), without the cutting devices in motion. If

the cutting devices are moving, turn the screw (T) gently counterclockwise until you obtain the prop- er adjustment. The correct minimum speed is shown in the instruction manual in the paragraph of technical data.

All the above adjustments should be made with the cutting devices correctly installed.

The warranty may be invalidated due to erro- neous adjustments made by personnel not belonging to authorized service centers.

H. Routine maintenance

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H1. After every use

In order to avoid overheating the motor, remove any dust and dirt from the slots on the cylinder cover and finds of the cylinder using a wooden scraper. Store the machine in a dry place.

After 25 hours of use

Remove the filter as shown in the figure and clean it using a gentle jet of compressed air. For more thor- ough cleansing, you can wash it with soapy water.

After 50 hours of use

Add some high speed gear grease in the gearbox through hole (C). Remove and clean the spark plug (set the space between the electrode at 0.5/0.6 mm). Replace if excessively encrusted. In case of excessive encrustation check the carbu- retor adjustment, the percentage of oil in the fuel mixture and make sure the oil is of excellent quali- ty and suitable for two-stroke engines.

After 100 hours of use

Replace the spark plug.

Every three months

Contact your Service Center for a complete over- haul, replacement of the fuel filter and cleaning of the parts inside the machine. This will reduce the

possibility of unexpected problems and will ensure the good performance and long life of your machine.

Periods of prolonged disuse

See "Environmental information".

If you use the machine in an exceptionally dirty or dusty environment these operations should be carried out more often.

H2. Replacement of nylon string

To replace the reel of string, press both the release pawls indicated by the arrows, remove the empty reel, unroll any string left and rewind the new string. Open the original package of string and insert the ends of the two strings in the eyelets on the reel, then wind the strings com- pletely on the reel in the same direction and fas- ten the end of each string in the 2 opposite grooves. Replace the reel in its housing and thread the ends of the strings in their bushings. Pull each string so that about 15 cm comes out on each side. Reassemble the nylon string head as shown (fig. H5). If the reel becomes excessive- ly worn, replace it with a whole new reel.

ENGLISH - 7

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Contents Italia 43/46/49cc 34/38/40cc 538248960 538248959 531024902 43/46/49 cc 34/38/40 cc531025002 538248960 538248959 531024905 538248960 538248959 531024906Safety precautions Explanation of Symbols General descriptionBurns. Wait a w minutes before Low the instructions in the manualMuffler may get very hot and cause Touching themDuring use Work zoneRemove this material with the engine running 3 4 Description of the safety devices on the machineSafety lever 3 4 6 7 9E1. Delta grip Assembly/disassemblyFuel storage E2. Double handled grip a6 7 8 9 10 11 12 Assembly of sawtooth blade and blade guardFor assembly see figures E7, E8 Starting and stopping the engineRoutine maintenance Carburetor adjustment3 4 7 9 Environmental information 5 6 7 8 10 11 12 13 14Techniques for use Cutting techniquesTroubleshooting table Runs but doesDeclaration of conformity Technical dataRotation speed frequency of rotation of engine at maximum

1.810, 2.210, 1.610, 2.010, 2.510 specifications

Husqvarna is a renowned brand in the world of outdoor power equipment, known for its innovative technologies and high-performance products. Among their extensive range, the models Husqvarna 2.510, 2.010, 953900762, 1.810, and 953900759 stand out due to their unique features and powerful capabilities.

The Husqvarna 2.510 is a versatile chainsaw, ideal for both professionals and avid DIY enthusiasts. It is powered by a robust engine that delivers exceptional cutting performance. This model is equipped with an intuitive starting system that ensures easy ignition, even in cold conditions. The lightweight design, combined with an ergonomic handle, promotes extended use without causing excessive fatigue.

Similarly, the Husqvarna 2.010 boasts advanced technologies that enhance its productivity. This model features an innovative air injection system, which removes larger dust and debris particles before they enter the air filter. This results in a cleaner and more efficient air intake, prolonging the engine life and reducing maintenance needs. The chainsaw's adjustable oil pump also allows users to optimize the lubrication according to their cutting needs, ensuring smooth operation and enhanced performance.

The 953900762 model showcases Husqvarna's dedication to user comfort. With its anti-vibration technology, it minimizes the impact forces transmitted to the user’s arms and hands. This feature makes prolonged usage more comfortable and significantly reduces the risk of fatigue. The chainsaw’s chain brake system enhances safety during operation, providing peace of mind to users.

The Husqvarna 1.810, another exceptional model, emphasizes precision and control. Its automatic chain lubrication system helps maintain optimal chain condition, ensuring consistent performance throughout use. The ergonomic design includes a soft-grip handle, which increases comfort when navigating through tough cutting tasks.

Lastly, the 953900759 is engineered for high efficiency and durability. It is equipped with a powerful, high-output engine designed for tough jobs, making it the ideal choice for professionals in demanding environments. Its robust construction ensures reliability even under rigorous conditions, while its user-friendly design features simplify operation and maintenance.

In conclusion, the Husqvarna 2.510, 2.010, 953900762, 1.810, and 953900759 models exemplify the brand's commitment to combining power and precision with user-centered design. Each model integrates advanced technologies and features aimed at enhancing performance and comfort, making them suitable for a wide range of cutting tasks. Whether you are a professional logger or a homeowner seeking effective tools for yard work, Husqvarna’s offerings are designed to meet and exceed expectations, standing as a testament to their legacy of quality and innovation in outdoor equipment.
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