Husqvarna 450 E Workshop Manual


Husqvarna 450 E Workshop Manual for the service and repair of the Husqvarna 450 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 450 E Workshop Manual Repair

Husqvarna 450 E Workshop Manual for the Repair and service of the Husqvarna 450 E chainsaw (including Rancher). 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 450 E chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.

Husqvarna 450 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 450 E Chainsaw Specifications


Cylinder displacement 50.2 см³
Cylinder displacement 3.06 cu.inch
Power output 3.2 hp
Maximum power speed 9000 rpm
Fuel tank volume 0.95 US pint
Fuel consumption 504 g/kWh
Idling speed 2700 rpm
Electrode gap 0.02 in
Torque, max. 2.6 Nm


Recommended bar length, max 20 in
Recommended bar length, min 13 in
Chain speed at max power 56.76 fts


Weight (excl. cutting equipment) 11.2 lbs
Product Size, LxWxH 16×8.9×11.5 in


Oil tank volume 0.55 US pint
Oil pump type Fixed flow

Overall dimensions:

Weight (excl. cutting equipment) 5.1kgss

Sound and Noise:

Sound power level, guaranteed (LWA) 115 dB(A)
Sound power level, measured 113 dB(A)
Sound pressure level at operators ear 104 dB(A)

Read the Husqvarna 450 E Workshop Manual for more chainsaw specs.

The Husky 450 E-Series Chainsaw is a great all around chainsaw with a perfect balance of professional-grade power and performance.

Husqvarna equips these saws with a 50.2 cc, 3.2 hp engine. This engine features X-Torq technology, allowing for lower fuel consumption and reduced exhaust emissions. These reductions meet even the world?s most strict environmental regulations.

A Smart Start design enables you to start the machine quickly with minimal effort. A combined choke/stop control minimizes the risk of engine flooding. The Husqvarna E-Series improves felling precision by adding distinct marks to the saw. A visible fuel level makes it easy to check fuel levels.

The ergonomic rear handle features a soft inlay, ergonomic trigger, and asymmetrical grip, making this saw as comfortable as it is efficient. Husqvarna?s LowVib system reduces vibration levels to the operator, minimizing fatigue during use. The inertia-activated chain brake reduces the likelihood of injury due to saw kickback.

A three-piece forged crankshaft allows for maximum durability even during the toughest jobs. The E-Series? centrifugal air cleaning system removes larger particles before they even reach the air filter. This system reduces the need for cleaning the filters and increases the lifetime of the engine. When it is time to clean the air filter, a quick-release makes the process fast and easy. A tool-less chain tension system makes assembly a breeze.

Husqvarna engineered their E-Series to be the perfect all-around saw. Its features make it ideal for professionals looking for a reliable chainsaw.

  • X-Torq technology lowers fuel consumption and reduces exhaust emission levels
  • Smart Start engine and starter allow the machine to start quickly with minimal effort
  • Combined choke/stop control reduces the risk of engine flooding
  • Felling marks provide better felling precision
  • Transparent fuel indicator makes it easy to check fuel level
  • Ergonomic rear handle with soft inlay, ergonomic trigger, and asymmetrical handle increase comfort
  • LowVib system reduces vibration levels to the operator, lessening fatigue
  • Inertia activated chain brake reduces the likelihood of injury due to kickback
  • Forged three-piece crankshaft maximizes durability for the toughest applications
  • Centrifugal air cleaning reduces air filter cleanings and improves engine life
  • Air purge removes air from carburetor and fuel system for easy starting
  • Quick-release air filter speeds up cleaning and replacing the air filter
  • Quick and easy chain tensioning and assembling of the bar and the chain without using any tools
  • Snap-lock cylinder cover saves time when changing spark plugs and cleaning

Husqvarna 450 E Workshop Manual PDF

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