Up to 24 Installments! | MS 311 STIHL chainsaw, ideal for medium section logs MS 311 STIHL chainsaw, ideal for medium section logs 1) No fuel, blade and chain 2) Coefficient K according to directive 2006/42 / EC = 2.5 dB (A) K) Coefficient according to Directive 2006/42 / EC = 2m / s ² Cubic capacity cm³ 59 Power kW / HP 3,1 / 4,2 Weight kg 1) 6,2 Sound pressure level dB (A) 2) 105 Sound power level dB (A) 2) 117 Vibration left / right m / s² 3) 4/4 Ratio of strength to weight kg / kW 2 Step / chain type 3/8 " standard decompression valve the decompression valve allows a portion of the compressed mixture to escape from the cylinder during This significantly reduces the force required to pull the starter rope, which relaxes the operator and protects the entire machine starting system from mechanical stress. Long-lasting air filtration system separation cyclone takes care of significantly larger filter life. Its separation cyclone removes large particles of pollutants, so as not to burden the filter, thus doubling the time until the next cleaning. Perfect combustion Four overflow chambers swirl the fuel-air mixture before ignition. In this way the fuel burns perfectly and the engine efficiency is significantly increased. The result: Lower fuel consumption and higher torque over a wide range of speeds. Anti-vibration system In the long run, strong vibrations in the handles of machines can cause problems with the perspiration of the fingers and hands. To prevent this problem, STIHL has developed a high quality anti-vibration system. In machines with anti-vibration system, the transmission to the handles of the oscillations produced by the motor and the component is significantly reduced. Pressure compensator The STIHL pressure compensator, a regulator built into the carburetor, ensures that engine performance, exhaust quality and fuel consumption remain almost constant over an extended period of time, despite progressive air pollution. Adjustable flow oil pump Allows accurate oil supply depending on operating conditions. The setting on the E indicator guarantees an adequate oil supply under all conditions. However, as professionals adjust the flow more precisely, the pump allows the oil flow to be reduced by up to 50%. Proportion Ematic Chain Lubrication System The STIHL Ematic-System consists of an Ematic blade, an Oilomatic chain and an adjustable or reduced flow oil pump. The special construction of the blade and the chain ensures that every drop of oil reaches where it really needs lubrication. Thus oil consumption can be reduced by up to 50%. Multi-function lever The basic functions of the machine, such as cold and hot start, operation and stop, are controlled by a single lever. This makes handling extremely easy and safe, as the operator does not have to move his right hand away from the handle. Tank cap that opens without tools Special secured plugs for the fuel tank and the oil tank. In machines with such plugs, the tank and the oil tank open and close quickly, with minimal force and without tools. Lateral chain tensioner With the side tensioner, the chain is stretched from the side, through the bell cap. This avoids the contact of the hands with the sharp chain and the support nails of the chainsaw. Carburetor preheating system STIHL chainsaws with carburetor preheating can be relied on even during the colder months of the year: With winter setting, preheated suction air passes around the carburetor. This prevents the carburetor from freezing. A simple move is enough to switch between summer and winter mode. Optional ElastoStart System When pulling the starter rope on internal combustion engines, the compression pressure creates sudden power fluctuations that put strain on the muscles and joints. A shock absorber integrated in the special ElastoStart start handle absorbs and releases force, depending on the compression course. This normalizes the boot process and eliminates jerks.