MS 660 - Very powerful 5.2kW-Extremely fast cutting petrol chain saw

Professional chain saw designed for heavy duty use in extreme conditions. High engine power combined with relatively low weight makes it ideal for use in dense stands and cutting hard wood. Available in guide bar lengths 20"/50cm to 36"/90cm.

Technical data
Displacement 91.6 cm³
Weight 1) 7.3 kg
Power-to-weight ratio 1.4 kg/kW
Power output 5.2 kW/7.1 bhp
Recomm. max. bar length 90 cm
Vibration levels left/right 2) 4.1/5.9 m/s²
Oilomatic saw chain pitch/type 3/8" Rapid Super Comfort
Sound power level 3) 109.0 dB(A)
Sound pressure level 3) 101.0 dB(A)
1) without bar/chain
2) (K) factor according to Dir. 2006/42/EC = 2m/s²
3) Power factor according to DIR2006/42/EC=2.5(dB(A))

Standard features

Anti-vibration system:

Intense vibration at the handles of power tools can lead to longer-term effects of blood vessels in the hands and arms. STIHL have therefore developed an effective anti-vibration system where by the oscillations from the machines engine are dampened which significantly reduces vibrations at the handles.
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Standard features

Carburetor heating:

By changing the chain saw from summer to winter operation the intake air is pre heated over the engine fins. This ensures that the carburetor does not ice up, and you can continue working in freezing temperatures.
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Standard features

ElastoStart:

STIHL ElastoStart reduces the shock caused by the compression of the engine during starting. The compression shock is taken away from the users joints and muscles through a spring or rubber element in the starter handle.
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Standard features

Decompression valve:

The decompression valve is part of the easy start-system. The valve should be pressed before starting in order to reduce the compression pressure when starting, as well as the effort needed to pull the starter rope. The decompression valve is semi-automatic, meaning that it must be pressed manually before starting, but then closes automatically.
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Standard features

Compensator:

This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.
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Standard features

Ematic chain lubrication system:

The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption up to 50%.
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Standard features

Side chain tensioner:

The tensioning screw reachable on the side of chainsaw through the sprocket cover. This removes the need for contact with the sharp saw chain.
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Standard features

Single-lever master control:

All important functions such as start, choke, throttle and stop are operated via a single lever.
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Standard features

Variable-displacement oil pump:

The excact chain oil output can be adjusted maunally for varying conditions, allowing for a reduction of up to 50%.
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Models available
MS 660, Bar length 20"/50cm £ 1133.88 * Add to product list
MS 660, Bar length 25"/63cm £ 1151.50 * Add to product list
MS 660, Bar length 30"/75cm £ 1169.13 * Add to product list
MS 660, Bar length 36"/90cm £ 1186.75 * Add to product list

* Manufacturer's recommended retail price updated as of February 2010. The manufacturer's recommended retail prices are subject to change without notice.

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Standard features

Variations

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information