English Tensioning the Saw Chain (front chain tensioner) 143BA045 KN Retensioning during cutting work: N Switch off the engine. N Loosen the nuts.

N Hold the bar nose up. N Use a screwdriver to turn the tensioning screw (1) clockwise until the chain fits snugly against the underside of the bar.

Stihl Chainsaw MS 170 User Manual. Size: 3.01 Mb. 43this manual to operate your chain saw. To receive maximum performance. 44satisfaction from your STIHL chain saw.

N While still holding the bar nose up, tighten down the nuts firmly. N Go to 'Checking Chain Tension'. Anewchainhastoberetensionedmore often than one that has been in use for some time. N Check chain tension frequently – see chapter on 'Operating Instructions'.

English Tensioning the Saw Chain (quick chain tensioner) 1 2 001BA112 KN Retensioning during cutting work: N Shut off the engine. N Pull out the hinged clip and loosen the wingnut. N Turn the adjusting wheel (1) clockwise as far as stop. N Tighten down the wingnut (2) firmly by hand.

N Fold down the hinged clip. N Go to 'Checking Chain Tension' Anewchainhastoberetensionedmore often than one that has been in use for some time. N Check chain tension frequently – see chapter on 'Operating Instructions'. This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1.

Your engine requires a mixture of highquality gasoline and two-strokeair cooled engine oil. Usemid-gradeunleadedgasolinewithaminimum octane rating of 89 ((R+M)/2) and no more than 10% ethanol content. 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.),butmagnesiumcastingsand catalytic converters as well.

This could cause running problems or even damage the engine. For this reason STIHL recommends that you use only high-qualityunleaded gasoline! Gasoline with an ethanol content of more than 10% can cause running problems and major damage in engines and should not be used. The ethanol content in gasoline affects engine running speed – it may be necessary to readjust the carburetor if you use fuels with various ethanol contents. WARNING To reduce the risk of personal injury from loss of control and/or contact with the running cutting tool, do not use your. Unit with incorrect idle adjustment.

At correct idle speed, the cutting tool should not move. D&d 3.5 dragonlance pdf. Ifyourpowertoolshowsanincorrectidle adjustment, have your STIHL dealer check your power tool and make proper adjustments and repairs. The idle speed and maximum speed of the engine change if you switch from a fuel with a certain ethanol content to another fuel with a much higher or lower ethanol content. This problem can be avoided by always using fuel with the same ethanol content. Use only STIHL two-strokeengine oil or equivalent high-quality two-strokeengine oils that are designed for use only in air cooled two-cycleengines. WerecommendSTIHLHPUltra2-CycleEngine Oil since it is specially formulated for use in STIHL engines.

Do not use BIA or TCW rated (twostroke water cooled) mix oils or other mixoilsthatstatetheyareforuseinboth water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). WARNING Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor. When filling at the pump, first remove the container from your vehicle and place the containeronthegroundbeforefilling.To reduce the risk of sparks from static discharge and resulting fire and/or explosion, do not fill fuel containers that are sitting in or on a vehicle or trailer. The container should be kept tightly closed in order to limit the amount of moisture that gets into the mixture. The machine‘s fuel tank should be cleaned as necessary. Fuel mix ages Only mix sufficient fuel for a few days work, not to exceed 30 days of storage.