Stihl MS 290, Instruction Manual

Page 1: ...STIHL MS 290 310 390 Instruction Manual...

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Page 3: ...product Your Dr Nikolas Stihl Guide to Using this Manual 2 Safety Precautions 3 Reactive Forces 8 Working Techniques 9 Cutting Attachment 18 Mounting the Bar and Chain 19 Tensioning the Chain 20 Check...

Page 4: ...g the machine or its individual components Engineering improvements STIHL s philosophy is to continually improve all of its products For this reason we may modify the design engineering and appearance...

Page 5: ...consult their physician and the pacemaker manufacturer before operating this power tool Intended use The machine may only be used to saw wood and wooden objects Do not use the machine for any other p...

Page 6: ...chains chain sprockets and accessories They are specifically designed to match your model and meet your performance requirements Refuelling Switch off the engine before refuelling Never refuel the ma...

Page 7: ...drop start the engine start as described in the Instruction Manual During operation Ensure you always have a firm and safe footing Take special care when the bark is wet danger of slipping Always hol...

Page 8: ...repaired by a STIHL servicing dealer if the saw chain still continues to move during idling Ensure proper ventilation when working in trenches hollows or other confined locations risk of fatal injury...

Page 9: ...e to the fuel Check fuel cap regularly for tightness Use only spark plugs that are in perfect condition and have been approved by STIHL see Specifications Check ignition lead insulation in good condit...

Page 10: ...in saw firmly with both hands and maintain a secure grip Always cut at full throttle Be aware of the location of the guide bar nose Do not cut with the guide bar nose Be especially careful with small...

Page 11: ...ible to recognise the danger Use aids such as winches or draglines When felling close to roads rail lines power lines etc work with particular care If necessary notify police power companies or railwa...

Page 12: ...or information on a possible fire risk If on a slope stand on the uphill side of the log Watch out for rolling logs When working at heights Always use a lift bucket Never work on a ladder or in a tree...

Page 13: ...persons in the felling area other than helpers Make sure no one is endangered by the falling tree the noise of your engine may drown any warning calls Maintain a distance of at least 2 1 2 tree lengt...

Page 14: ...the top of the tree Preparing work area at base of tree First clear the tree base and work area from interfering limbs and brush to provide a secure footing Carefully clear the base of the trunk e g...

Page 15: ...ning sight must point in the planned direction of fall if necessary correct direction of fall by re cutting the felling notch Sapwood cuts Sapwood cuts in long fibered softwood help prevent sapwood sp...

Page 16: ...utting the plunge bar helps to keep the hinge parallel in form i e the same thickness at all points To do this guide the plunge bar parallel to the sink chord Felling wedges Insert the felling wedge a...

Page 17: ...ough the stabilizing strap horizontal level with the felling cut with arms fully extended B Thick trunks Implement this felling cut when the trunk diameter is greater than the cutting length of the ma...

Page 18: ...lling Cut with Holding Strap Leaner A Thin trunks Implement this felling cut when the trunk diameter is smaller than the cutting length of the chainsaw N Plunge cut the guide bar into the trunk until...

Page 19: ...t cut into the holding strap The felling cut must be continued on the opposite side of the trunk Ensure that the second cut is at the same level as the first cut N Engage the spiked bumper behind the...

Page 20: ...s standard with a chain scabbard that matches the cutting attachment If guide bars of different lengths are mounted to the saw always use a chain scabbard of the correct length which covers the comple...

Page 21: ...the sharp cutters N Fit the chain start at the bar nose N Fit the guide bar over the studs 1 the cutting edges on the top of the bar must point to the right N Engage the peg of the tensioner slide in...

Page 22: ...e that has been in use for some time N Check chain tension frequently see chapter on Operating Instructions Your engine requires a mixture of gasoline and engine oil WARNING For health reasons avoid d...

Page 23: ...cool and safe location protected from light and the sun Fuel mix ages only mix sufficient fuel for a few weeks work Do not store fuel mix for longer than 30 days Exposure to light the sun low or high...

Page 24: ...ng Bracket is in an upright position N Position filler cap position markings on the filler cap and the filler port must be aligned with each other N Push the filler cap down as far as it will go N Hol...

Page 25: ...of the cap into the correct position N Turn the filler cap clockwise and close it see the section Closing and Checking the lock Filler cap with marking To open N Open bracket N Turn filler cap approx...

Page 26: ...rt N Remove the filler cap from the fuel tank and look at it from above N Fit filler cap and turn it counterclockwise until it engages in the seat of the filling port N Continue to turn the filler cap...

Page 27: ...oil does not have the necessary lubricating properties and is unsuitable for chain lubrication Preparations N Thoroughly clean the oil filler cap and the area around it to ensure that no dirt falls in...

Page 28: ...shing the hand guard toward the bar nose with your left hand or by inertia in certain kickback situations The chain is stopped and locked Releasing the chain brake N Pull the hand guard back toward th...

Page 29: ...HL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer Maintain the following servicing intervals At temperatures below 10 C N Turn the k...

Page 30: ...t n this position is for starting the warm engine Cold start l this position is for starting the cold engine Adjust Master Control lever The throttle trigger lockout and throttle trigger must be press...

Page 31: ...kout 2 and throttle trigger 3 set master control lever 4 Position cold start l If engine is cold even if the engine has stalled during opening of throttle after starting Position warm start n If engin...

Page 32: ...k guide it vertically back into the housing so that the starter rope can rewind properly With a new engine pull the starter rope several times to prime the fuel line when engine begins to fire N press...

Page 33: ...the spark plug N Crank the engine several times with the starter to clear the combustion chamber N Reinstall the spark plug see Spark plug N Set the Master Control lever to warm start n even if the en...

Page 34: ...thermal overload After finishing work N Slacken off the chain if you have retensioned it at operating temperature during work NOTICE Always slacken off the chain again after finishing work The chain...

Page 35: ...will grind against the base of the groove the bottoms of the cutters and the tie straps will not lie against the bar The air filter system can be adapted to suit different operating conditions by ins...

Page 36: ...he inside outwards In case of stubborn dirt N Wash the filter in STIHL special purpose cleaner special accessories or a clean non flammable cleaning liquid e g warm soapy water and dry it Do not clean...

Page 37: ...direction WARNING If the chain continues moving when the engine is idling have your saw checked and repaired by your servicing dealer Erratic idling behavior poor acceleration even though standard se...

Page 38: ...ours or sooner if the electrodes are badly eroded Install only suppressed spark plugs of the type approved by STIHL see Specifications Removing the spark plug N Move the Master Control lever to 0 N Tu...

Page 39: ...e the saw chain and guide bar clean them and spray with corrosion inhibiting oil N Thoroughly clean the machine pay special attention to the cylinder fins and air filter N If you use a biological chai...

Page 40: ...es toward the outside N Refit washer and E clip on the crankshaft Sawing effortlessly with a properly sharpened saw chain A properly sharpened saw chain cuts through wood effortlessly even with very l...

Page 41: ...chain increased wear even to the point of saw chain breakage File holder N Use a file holder Always use a file holder special accessory see table Sharpening tools when sharpening saw chains by hand Fi...

Page 42: ...ck angle with file gauge All cutters must be equally long With varying cutter lengths the cutter heights also vary and cause rough running of the saw chain and chain breakage N All cutters must be fil...

Page 43: ...any filings or grinding dust lubricate the saw chain thoroughly N In the event of extended periods of disuse store saw chains in cleaned and oiled condition 689BA051 KN 689BA044 KN 689BA052 KN Sharpe...

Page 44: ...damaged As required Complete machine Visual inspection condition leaks X X Clean X Throttle trigger throttle trigger lockout choke lever stop switch master control lever dependent on equipment Functi...

Page 45: ...replace X 1 STIHL recommends STIHL servicing dealer 2 When using professional chainsaws with a power output of 3 4 kW or more for the first time tighten the cylinder block screws after 10 to 20 hours...

Page 46: ...dealer STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer STIHL dealers are regularly given the opportunity to attend training co...

Page 47: ...per spike 10 Guide bar 11 Oilomatic saw chain 12 Oil filler cap 13 Muffler 14 Front hand guard 15 Front handle handlebar 16 Decompression valve depending on equipment version 17 Starter grip 18 Master...

Page 48: ...der bore 49 mm Piston stroke 34 mm Engine power according to ISO 7293 3 4 kW 4 1 HP at 9500 rpm Idle speed 1 1 to ISO 11681 50 rpm 2800 rpm Spark plug suppressed Bosch WSR 6 F NGK BPMR 7 A Electrode g...

Page 49: ...test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine The applicable exhaust emission requirements are fulf...

Page 50: ...ppear alone on small parts Observe all country specific waste disposal rules and regulations STIHL products must not be thrown in the garbage can Take the product accessories and packaging to an appro...

Page 51: ...stadt Technical documents deposited at ANDREAS STIHL AG Co KG Produktzulassung The year of manufacture and serial number are applied to the product Done at Waiblingen 03 02 2020 ANDREAS STIHL AG Co KG...

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