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Manafacture: Stihl
File size: 1.61 mb
File name: c23c7488-8684-be14-d1fa-bf23f0627312.pdf
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manual abstract
The gearbox is correctly positioned if it reaches or covers the mark ( see arrow) . 402BA024 KN 3 3 1 : Insert clamp screws ( 3) as far as stop. : With the engine is resting on the machine support, line up the gearbox ( 1) so that the clamp screws face up and the chain sprocket cover is exactly vertical. : Tighten down the clamp screws ( 3) in the following sequence: – tighten the left screw moderately – tighten the right screw moderately – tighten down the left screw firmly – tighten down the right screw firmly 16 HT-KM English / USA Mounting the KombiTool Mounting the Bar and Chain : Engage lug ( 1) on drive tube in slot ( 2) in the coupling sleeve and : Unscrew nut and take off cover. The chain is very sharp – wear work gloves to protect hands from cuts. 002BA132 KN 12 4 3 002BA133 KN 390BA042 KN 1 2 390BA043 KN390BA003 KN : push home the drive tube as far as stop. When correctly installed, the red line ( 3) (arrow point) must be flush with the end of the coupling sleeve. : Turn tensioning screw ( 1) counterclockwise until the tensioning nut ( 2) butts against the left end of the housing slot, then back it off 5 full turns. : Fit the chain – start at the bar nose. : Tighten the wing screw ( 4) firmly. : Reverse the above sequence to remove the drive tube. HT-KM 17 English / USA Tensioning the Saw Chain Checking Chain Tension 15 390BA044 KN4 3 1 390BA045 KN390BA046 KN : Fit guide bar over the stud ( 3). Engage peg of tensioner slide in locating hole ( 4) – place the chain over sprocket ( 5) at the same time. : Now turn tensioning screw ( 1) clockwise until there is very little chain sag on the underside of the bar – and the drive link tangs are located in the bar groove. : Refit the sprocket cover and screw on the nut only fingertight. : Now refer to " Tensioning the Saw Chain". Retensioning during cutting work: : Shut off the engine and then slacken the nut. : Hold the bar nose up. : Use screwdriver to turn the tensioning screw ( 1) clockwise until chain fits snugly against the underside of the bar. Tighten down the nut firmly. A new chain has to be retensioned more often than one that has been in use for some time – check chain tension frequently – see chapter "Operating Instructions / During Operation". : Check chain tension. : Shut down the engine. : Wear work gloves to protect hands. : Chain must fit snugly against the underside of the bar and it must still be possible to pull the chain along the bar by hand. : If necessary, retension the chain. A new chain has to be retensioned more often than one that has been in use for some time. Check chain tension frequently – see chapter "Operating Instructions / During Operation" . 18 HT-KM English / USA 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 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 390BA047 KN : A full chain oil tank is sufficient for only half a tankful of fuel. Check the oil level regularly during cutting work. Never allow the oil tank to run dry! : Thoroughly clean the filler cap and area around it so that no dirt can fall into the tank. : Position the unit so that the filler cap faces up. If the oil level in the tank does not go down, the reason may be a problem in the oil supply system: Check chain lubrication, clean the oilways, contact your servicing dealer for assistance if necessary. STIHL recommends that you have maintenance and repair work performed only by a STIHL servicing dealer. HT-KM 19 English / USA Checking Chain Lubrication Fitting the Harness 247BA011 KN 1 2 390BA048 KN 1 389BA055 KN 3 The bayonet-type oil tank filler cap with its hinged grip can be opened and closed without tools. : To open the tank, swing the grip (1) to the vertical position. : Turn the filler cap counterclockwise as far as stop and remove. : Fill up with chain oil. : To close the oil tank, place the filler cap in position with the grip upright, The saw chain must always throw off a small amount of oil. : Always check chain lubrication a...
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