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Four-stroking is a condition of two-stroke engines where combustion occurs every four strokes or more, rather than every two. Though normal in some instances at idle, extremely high engine speeds, and when letting off the throttle, such firing is uneven, noisy and may, in cases of malfunction, damage the engine if allowed to continue unabated.
The chain has to be properly matched to the guide bar and the saw. Chainsaw manufacturers specify a selection of suitable chains for each model of saw. Best safety requires that the chain is properly sharpened. One key sharpening parameter is the depth gauge setting. The depth gauge is the small steel protubera
A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.
Chainsaw engines are traditionally either a two-stroke single-cylinder gasoline (petrol) internal combustion engine (usually with a cylinder volume of 30 to 120 cm 3) or an electric motor driven by a battery or electric power cord. In a petrol chainsaw, fuel is generally supplied to the engine by a carburetor at the intake.
The expertise in engines was utilized in new areas and the first chainsaw was produced in 1959. 1968 – Power cutters A saw rebuilt to a power cutter in 1968 was the starting point of what today is the business area Husqvarna Construction. 1978 – Electrolux acquired Husqvarna. 1986 – The motorcycle division was sold to Cagiva.
Poulan was founded as Poulan Saw Co. in 1946 by chainsaw pioneer Claude Poulan in Shreveport, Louisiana. Purchased in late 1950s or early '60 by the Beaird Company, also of Shreveport, it was known as Beaird-Poulan.
Husqvarna (pronounced [ˈhʉ̂ːsˌkvɑːɳa] ⓘ) is a Swedish company founded in 1689 to produce muskets. The company has grown since, was partitioned, and is now a brand of multiple companies. The company has grown since, was partitioned, and is now a brand of multiple companies.
The saw chain, or cutting chain, is a key component of a chainsaw.It consists of steel links held together by rivets, and superficially resembles the bicycle-style roller chain, although it is closer in design to a leaf chain.