Husqvarna 257 Workshop Service Manual


Husqvarna 257 Workshop Manual for the service and repair of the Husqvarna 257 chainsaw. View pages online or download a complete PDF manual with clear easy to understand images, diagrams and information. Print or save to any device.


Husqvarna 257 Workshop Manual Repair

Husqvarna 257 Workshop Manual for the Repair and service of the Husqvarna 257 chainsaw. The PDF workshop service manual has accurate, easy to understand information and diagrams to help repair and service the chainsaw. Service Information to help you to troubleshoot, repair and fix the Husqvarna 257 chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.

Husqvarna 257 Workshop Manual Contents

Contents, Introduction, Safety Regulations, Symbols, Technical data, Service tools, Service data, Safety equipment, Starter, Electrical system, Centrifugal clutch, Lubrication system, Carburetor, Tank unit, Anti-vibration system, Piston and cylinder, Crankcase and crankshaft, Troubleshooting, Repair Instructions.


Carburetor – General Chainsaw Adjustment

Adjusting the carburettor involves adjusting the engine to the local conditions e.g. climate, altitude, fuel and type of two-stroke oil. The carburettor is equipped with three adjustment options.
L = Low speed jet
H = High speed jet
T = Idling adjustment screw

The L and H jets adjust the fuel flow to match the airflow that the throttle valve opening allows. Turning them clockwise makes the fuel/air mixture weaker (less fuel in relation to the amount of air) and turning them anti-clockwise makes the fuel/air mixture richer. A weak mixture increases the engine speed and a rich mixture decreases the engine speed. The T screw controls the throttle position when idling. Turning the T screw clockwise gives faster idling; turning it anti-clockwise lowers idling speed (see manual for complete guide).

See the complete service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF downloads. Also the repair and service articles available on this website for more information on how to service, repair and find parts for the chainsaw.

Husqvarna 257 Chainsaw Specifications

Weight 5.60 kg.
Engine power 3.70 HP
Engine power 2.70 kW
Cylinder displacement 56.50 cc.
Fuel tank volume 0.60 l.
Decompression valve yes
Oil pump automatic, adjustable

Read the Husqvarna 257 Workshop Manual for more chainsaw specs.

Heavy saw, but strong and sturdy with a good power to weight ratio. A much liked chainsaw with Husky lovers.

The 57 CC engine of this Husqvarna chainsaw produces 3.7 horsepower, which effortlessly cuts trees, thick boards or debris. The maximum engine speed of 13,000 rpm of this chainsaw ensures heavy duty performance. This Husqvarna chainsaw can handle 13 to 20-inches of bar and usable for cutting between 11 and 19-inches. With 99.5 Db of noise, this chainsaw goes easy on your ears. Featuring the Ducati system

Husqvarna 257 Workshop Manual PDF

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