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manual abstract
Check chain tension frequently – see "Operating Instructions". This engine is certified to operate on unleaded gasoline and the STIHL two- stroke engine oil at a mix ratio of 50:1. Your two-stroke engine requires a mixture of high- quality gasoline and quality two- stroke air cooled engine oil. Use mid- grade unleaded gasoline with a minimum octane rating of 89 (R+M/ 2). If the octane rating of the mid- grade gasoline in your area is lower, use premium unleaded fuel. Fuel with a lower octane rating may increase engine temperatures. This, in turn, increases the risk of piston seizure and damage to the engine. The chemical composition of the fuel is also important. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc. ), but magnesium castings and catalytic converters as well. This could cause running problems or even damage the engine. For this reason STIHL recommends that you use only nationally recognized high-quality unleaded gasoline! 28 MS 880 English / USA Fueling 001BA159 KN Before fueling, clean the filler cap and the area around it to ensure that no dirt falls into the tank. Always thoroughly shake the mixture in the canister before fueling your machine. In order to reduce the risk of burns or other personal injury from escaping gas vapor and fumes, remove the fuel filler cap carefully so as to allow any pressure build-up in the tank to release slowly. Use only STIHL two- stroke engine oil or equivalent high-quality two-stroke engine oils that are designed for use only in air cooled two- cycle engines. We recommend STIHL 50:1 two- stroke engine oil since it is specially formulated for use in STlHL engines. Do not use BIA or TCW rated ( two- stroke water cooled) mix oils or other mix oils that state they are for use in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc. ). Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor. When filling at the pump, first remove the canister from your vehicle and place the canister on the ground before filling. Do not fill fuel canisters that are sitting in or on a vehicle. The canister should be kept tightly closed in order to avoid any moisture getting into the mixture. The machine‘s fuel tank and the canister in which fuel mix is stored should be cleaned as necessary. Fuel mix ages Only mix sufficient fuel for a few days work, not to exceed 3 months of storage. Store in approved fuel-canisters only. When mixing, pour oil into the canister first, and then add gasoline. Close the canister and shake it vigorously by hand to ensure proper mixing of the oil with the fuel. Gaso- Oil (STIHL 50:1 or line equivalent high-quality oils) US gal. US fl.oz 1 2.6 2 1/2 6.4 5 12.8 Dispose of empty mixing- oil canisters only at authorized disposal locations. MS 880 29 30 English / USA MS 880 Opening the cap : Raise the grip until it is upright. : Turn the cap counterclockwise (approx. a quarter turn). : Remove the filler cap. Closing the cap : Fit the cap - grip upright -marks must line up. : Turn the cap clockwise as far as stop (approx. a quarter turn). : Fold the grip flush with the top of the cap. If the grip does not lie completely flush with the cap and the detent on the grip does not engage the recess in the filler neck, the cap is not properly seated and tightened and you must repeat the above steps. Change the fuel pickup body once every year : Drain the fuel tank. : Use a hook to pull the fuel pickup body out of the tank and take it off the hose. : Push the new pickup body into the hose. : Place the pickup body in the tank. 001BA161 KN 001BA160 KN 001BA163 KN 001BA162 KN 165BA003 KN Engl is h / U S A Chain Lubricant For automatic and reliable lubrication of the chain and guide bar – use only an environmentally compatible quality chain and bar lubricant with non-fling additive or the rapidly biodegradable STIHL BioPlus is recommended. Biological chain oil must be resistant to aging (e.g. STIHL BioPlus) since it will otherwise quickly turn to resin. This results in hard deposits that are difficult to remove, especially in the area of the chain drive, clutch and chain. It may even cause the oil pump to seize. The service life of the chain and guide bar depends on the quality of the lubricant. It is therefore essential to use only a specially formulated chain lubricant. If special chain lubricant is not available, you may – in an emergency – use an HD single grade or multigrade engine oil with a viscosity that suits the prevailing outside temperature. Do not use waste oil! Medical studies have shown that renewed contact with waste oil can cause skin cancer. Moreover, waste is environmentally harmful! Waste oil does not have the necessary lubricating properties and is unsuitable for chain lubrication. Filling ChainOil Tank 001BA158 KN : Thoroughly clean the oil filler cap and the area round it to ensure that no dirt falls...