The chainsaw Oleo Mac GST 250 has a 2 STROKE ( EURO 2 ) engine. This provides us with a 3.4HP power / 2.5kW (9,000rpm) and a displacement of 51.7 cc. It also has an aluminum semi-carburetor and a bore per stroke of 45 x 32.5mm.
This model of chainsaw of Oleo Mac has an electronic ignition system. It has an analog coil and fixed advance. The model GS 520 has a weight (without bar and chain) of only 5Kg.
The chainsaw offers a power supply and lubrication system with wALBRO carburetor. It has an automatic and adjustable oil pump. It has a tank capacity of 0.5 L fuel.
The gS 520 chainsaw from Oleo Mac has a bar and chain cutting system. This system has a bar cutting length of 16" - 18" (410mm - 460mm). It has a chain pitch of 325".
| Displacement | 51.7cc |
| Power | 3.4HP |
| Sword length | 46cm - 18" |
| Chain pitch | .325 "x.050" |
| Oil tank capacity | 0.27L |
| Gasoline tank capacity | 0.5L |
| Sound pressure | 104.4 dB |
| Power level | 112.9 dB(A) |
| Dry weight without bar and chain | 5.4kg |
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The engine features a nickel-coated cylinder, 3-piece drive shaft, forged and machined steel connecting rod and shaft, 2 bearings and 2-ring piston: they ensure constant performance over time even in case of intensive use. |
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The motor group is independent from the machine body. This ensures easy and fast maintenance, greater reliability over time, lower heat transmission. |
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It has an "Ice device" system. It allows to work without problems even at low temperatures (below 0°C) avoiding the formation of ice in the air filter |
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Large flywheel (Ø 100 mm) with innovative profile fins. To ensure a more regular operation of the engine and optimal cooling even in difficult climatic conditions (high ambient temperature). |
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Automatic and adjustable oil pump. This is controlled by the clutch (therefore with zero consumption with the engine at minimum) ensures lower oil consumption and greater care for the environment. The consumption regulation facilitates the operator's work by allowing the quantity of oil to be varied according to the use of the machine and the type of wood. |
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Aluminum chain guard, guarantees high robustness, light weight. |
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Fuel tank separated from the machine body. Allows the mixture not to overheat, which favors the good operation of the machine in any environmental and working condition. |
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Anti-vibration system consisting of 3 spring dampers and 2 rubber dampers located between the handle and the motor support. It has a total isolation of the operator from vibrations for a greater comfort of use. |
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Ergonomic controls. All the main functions of the machine are easily accessible with only the right hand. This makes it possible to work without removing the hand from the handle. |
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The "Decompressor" valve mounted on the cylinder is activated at start-up by reducing the internal pressure in the explosion chamber. Side chain tensioner, facilitates chain tensioning and adjustment operations. |
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Easy access and maintenance of the air filter and spark plug. No tools are needed to remove the cover, just turn the knob. |
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Nylon net filtering surface. It is easier and faster to clean and with less deterioration over time |
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Silencer with catalytic converter ensures compliance with the emission limits imposed by the latest European anti-pollution standards. |
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Chain tensioner in lateral position, facilitates chain tensioning and adjustment operations. |
Data sheet
Specific References
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