Husqvarna Motorsense 545FX AutoTune™

Husqvarna 545 Fx AutoTune is a very easy-to-handle forestry clearing saw with high performance and unique ergonomic solutions developed for full-time clearing work. Optimised transmission with 24 degree bevel gear facilitates directional felling in dense forest. Easy-start X-TORQ® engine with fast acceleration, reduced fuel consumption and lower exhaust emissions. Very low vibrations thanks to efficient de-vibration of the engine, drive shaft and cutting equipment. Easy to start with Smart Start®. Supplied with Balance XT harness.

- Easier starting
1. press the fuel bladder2. press the start button3. pull the starter cord and go!

- AutoTune
Always optimal engine performance through automatic carburettor tuning - it compensates for different fuels, altitude, humidity, temperature and dirty air filters.

- Balance XT harness
Ergonomic Balance XT harness with wide back plate, shoulder straps and hip belt that distribute the load over a large area. Adjustable back plate for a perfect fit.

- Angle gear for forestry
Angle gear angled 24 degrees facilitates directional felling in dense forest

- Easy blade change
A magnet that holds the locking pin in place and facilitates the change of cutting equipment

- LowVib®
LowVib® effectively reduces handle vibration and protects the user's arms and hands.

- Smart Start®
LowVib® reduces the risk of injury

- Smart Start®
The engine and starter are designed to start the machine quickly without much effort. Reduces drag on the starter cord.

- Adjustable handle

- Adjustable handle
Adjustable and ergonomic handle for best comfort.

- Fuel pump
The design of the fuel pump makes the machine very easy to start.

- Automatic stop control
The stop control automatically switches to ON position for trouble-free starting.

- X-TORQ®
The X-TORQ® engine reduces fuel consumption and harmful emissions.

- Optimum comfort
The X-TORQ® engine reduces fuel consumption and harmful emissions.

- Optimal comfort
Soft handles for optimal comfort. The bar handle makes it easy to turn and use the trimmer at different angles.

Technical data
Cylinder volume, cm³ 45.7 cm³
Power 2.2 kW
Fuel tank volume 0.9 l
Fuel consumption 450 g/kWh
Rpm 2700 rpm
Ignition module air gap 0.3 mm
Electrode gap 0.5 mm
Clutch activation speed 3900 rpm
Maximum output shaft speed 9600 rpm
Output gear 1.29
Drive gear angle 24°
Lubricant (bevel gear) Biodegradable grease
Equivalent vibration level (ahv, eq.) left/right handle 3.5 m/s²
Equivalent vibration level (ahv, eq.) left/right handle 3.5 m/s²
Sound power level, guaranteed LWA in dB(A) 116 dB(A)
Sound pressure level at user's ear, dB(A) 99 dB(A)
Weight (excluding cutting equipment) 8.4 kg