Husqvarna 455 E Workshop Manual


Husqvarna 455 E Workshop Manual for the service and repair of the Husqvarna 455 E 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 455 E Workshop Manual Repair

Husqvarna 455 E Workshop Manual for the Repair and service of the Husqvarna 455 E chainsaw (455e). 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 455 E chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.

Husqvarna 455 E 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 455 E Chainsaw Specifications


Power output 3.5 hp
Cylinder displacement 3.4 cu. inch
Maximum power speed 9,000 rpm
Max engine/motor 13,300 rpm
Idling speed 2,700 rpm
Torque, max. 3.2 Nm
Torque, max. at rpm 6,600 rpm
Clutch engagement speed (±120) 3,900 rpm
Fuel consumption 407 g/kWh
Fuel consumption 2.29 lbs/h
Spark plug NGK BPMR7A, Champion RCJ7Y
Electrode gap 0.02 in
Ignition module air gap 0.01 in
Oil pump type Automatic
Oil pump capacity Max 17 ml/min
Oil pump capacity Min 6 ml/min
Exhaust emissions (CO2 EU V)
893 g/kWh


Bar length (inch) 20 in
Recommended bar length, min 13 in
Recommended bar length, max 24 in
Pitch 3/8″
Sprocket type Spur 7


Weight (excl. cutting equipment) 13.2 lbs


Lubricant type Husqvarna 2 stroke or equiv. at 50:1
Oil tank volume 0.7 US pint
Oil tank volume 0.32 l

Sound And Noise

Sound power level, guaranteed (LWA) 114 dB(A)
Sound power level, measured 112 dB(A)
Sound pressure level at operators ear 104 dB(A)


Equivalent vibration level (ahv, eq) front handle 3.8 m/s²
Equivalent vibration level (ahv, eq) rear handle 6.9 m/s²

Read the Husqvarna 455 E Workshop Manual for more chainsaw specs.

The Husky 455 E-Series Chainsaw has the power and overall performance that seems to be indeed improved compared to the previous chainsaws in the Husqvarna series, but some professional woodcutters will still find that it needs more adjustments to become a very useful tool. Others, on the other hand, will have their needs met by the 455e, especially if they don’t have many needs.


Light and easy to use

Like most of its predecessor chainsaws in the Husqvarna series, the 455 is very easy to use. It starts with no problems and you can even start it without using the pressure valve – although it’s probably advisable that you use it for safety measures. You shouldn’t have problems starting in even in cold or hot weather conditions.

The low vibration on the 455 makes it very easy to work with it for long periods of time – you won’t feel a thing and can forget about the numb arms you generally get when using a heavier chainsaw.

As you would probably expect from a Husqvarna, the 455 is very light and this makes it very easy to maneuvre.

Good power for most uses

The Husqvarna 455 offers a fairly decent amount of power for its weight, and altitude won’t affect that. It can cut through most wood types at very high speed so it gets the job done quickly. If however the saw is shutting down from time to time, you should tighten the chain a little bit.


Chain problems

Most of the Husqvarna chainsaws have some chain problems eventually, and the 455 is no exception to that rule. If you use the chain for a longer period of time, the chain brake can lock up and you will have to remove the spring holding the brake in the locked position. If you overuse it a little bit, you will have to change the chain pretty often. So you may consider simply changing the chain from the very beginning if you know you’ll use it a lot.

Components may fail rather soon

Husqvarna chainsaws are lighter because they use plastic covers. And the plastic is one of the first things that will fail. This means that you’ll have to be extra careful with it. The choke handle for example is made out of plastic, so the trigger may break very easily.

The fuel mixture may pose some issues if the mix is not fresh gas from the tank and mixed with the oil right before filling it with the mix.

You can also expect oil to leak a lot when the chainsaw is idle, but that’s normal with a Husqvarna chainsaw.

Husqvarna 455 E Workshop Manual PDF

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