STIHL FS 70 Instruction Manual
English © ANDREAS STIHL AG & Co. KG, 2020 0458-570-0121-D. VA5.C20. 0000001648_023_GB Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled.
English Guide to Using this Manual Symbols in text WARNING Pictograms The meanings of the pictograms attached to the machine are explained in this manual. Depending on the model concerned, the following pictograms may be attached to your machine. Fuel tank; fuel mixture of gasoline and engine oil Operate decompression valve Manual fuel pump Operate manual fuel pump Warning where there is a risk of an accident or personal injury or serious damage to property.
English The use of noise emitting power tools may be restricted to certain times by national or local regulations. To operate the power tool you must be rested, in good physical condition and mental health. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating a power tool. Persons with pacemakers only: The ignition system of your power tool produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers.
English Transporting the Power Tool Fueling Before Starting 002BA601 KN Gasoline is an extremely flammable fuel. Keep clear of naked flames. Do not spill any fuel – do not smoke. Check that your power tool is properly assembled and in good condition – refer to appropriate chapters in the instruction manual. – Check the fuel system for leaks, paying special attention to visible parts such as the tank cap, hose connections and the manual fuel pump (on machines so equipped).
English – Never attempt to modify the controls or safety devices in any way. – Keep the handles dry and clean – free from oil and dirt – for safe control of the power tool. – Adjust the harness and handle(s) to suit your height and reach. See chapters on "Fitting the Harness" and "Balancing the Machine". To reduce the risk of accidents, operate your power tool only if it is in a safe condition.
English 15m (50ft) The cutting attachment may catch and fling objects a great distance and cause injury - therefore, do not allow any other persons within a radius of 15 meters of your own position. To reduce the risk of damage to property, also maintain this distance from other objects (vehicles, windows). Even maintaining a distance of 15 meters or more cannot exclude the potential danger.
English Inspect the work area: Stones, pieces of metal or other solid objects may be thrown more than 15 meters and cause personal injury or damage the cutting attachment and property (e.g. parked vehicles, windows). The gearbox gets hot during operation. To reduce the risk of burn injury, do not touch the gearbox housing. Metal cutting attachments must be sharpened regularly as specified.
English To reduce the above-mentioned risks when using a metal cutting attachment, never use a metal cutting attachment with a diameter larger than specified. It must not be too heavy. It must be manufactured from materials of adequate quality and its geometry must be correct (shape, thickness).
English Do not use deflector with brush knives or circular saw blades. Check the wear limit marks! Mowing Head with Nylon Line 002BA049 KN Do not use deflector with mowing heads. If one of the wear limit marks on the PolyCut mowing head is worn through (arrow): Do not continue using the mowing head. Install a new one. There is otherwise a risk of injury from thrown parts of the head. Use deflector in combination with grass cutting blades only.
English Risk of Kickout (Blade Thrust) with Metal Cutting Attachments Grass Cutting Blade WARNING 002BA135 KN 000BA020 KN When using metal cutting attachments there is a risk of kickout when the rotating blade comes into contact with a solid object such as a tree trunk, branch, tree stump, rock or similar. The machine is thrown to the right or to the rear – opposite to the attachment's direction of rotation.
English Approved Combinations of Cutting Attachment, Deflector, Handle and Harness Cutting Attachment Deflector 2 1 3 Handle Shoulder Strap/Harness 14 13 15 17 19 18 19 18 19 4 11 6 5 16 7 8 12 10 FS 70 C, FS 70 RC 16 0000-GXX-0379-A1 9 15 14 11
English Approved Combinations Deflectors Select correct combination from the table according to the cutting attachment you intend to use. 11 Deflector with blade, for mowing heads 12 Deflector for metal cutting attachments For safety reasons only the cutting attachments, deflectors, handles and harnesses shown in each row of the table may be used together. No other combinations are permitted – risk of accidents.
English Adjusting and securing the handlebar 4 2 1 B 3 2 1 6 6 N 547BA027 KN 5 Take out the screw (1) – the nut (2) remains in the control handle (3). N Push the control handle onto the handlebar (5) until the holes (6) line up – the throttle trigger (4) must point towards the gearbox. N Insert the screw (1) and tighten it down firmly. FS 70 C, FS 70 RC 1 N Align the handlebar so that distance A is about 20 cm (8 in) and distance B about 15 cm (6 in).
English Mounting the Barrier Bar Mounting the Loop Handle 4 1 2 002BA586 KN 4 A factory-new machine comes with the loop handle already mounted. 7 8 5 9 Using the Barrier Bar N Take out the screws (1) and remove along with washers (2) and nuts (3). Place the clamp (7) in the loop handle (4) and position them both against the drive tube (8). N Remove the loop handle (4) and clamps (5). Position the clamp (8) against the drive tube. N Place the barrier bar (6) in position as shown.
English Adjusting and Securing the Loop Handle Fitting the Carrying Ring Polymer Version A 1 1 4 1 Recommendation: distance (A): about 15 cm (5.9 in) N Slide the handle to the required position. N Line up the loop handle (4). N Tighten down the screws until the loop handle can no longer be rotated on the drive tube. If no barrier bar is fitted – lock the nuts if necessary. For position of carrying ring see "Main Parts".
English Mounting the Deflector Mounting the Cutting Attachment Use the right deflector 002BA262 KN 1 WARNING Deflector (1) is approved for mowing heads only and must therefore be mounted before fitting a mowing head N Position the deflector against the gearbox so that the lug (3) engages the recess (4) in the deflector. N Insert the screw (5) and tighten it down firmly. 002BA104 KN 0414BA007 KN Placing power tool on the ground N Shut off the engine.
English Mounting Hardware for Cutting Attachments 4 If mounting hardware is not packed with machine If mounting hardware is packed with machine Mowing heads and metal cutting tools may be mounted. Rotate shaft or cutting attachment until the stop pin slips into position and blocks the shaft. WARNING 002BA267 KN 002BA266 KN N Mounting the Cutting Attachment 5 Only mowing heads may be used which mount directly to the shaft (2).
English WARNING Wear protective gloves to reduce the risk of direct contact with the sharp cutting edges. Mount only metal cutting attachments. 9 Check direction of rotation of cutting attachment 1 7 6 4 8 Screw the mowing head counterclockwise on to the shaft (1) as far as stop. N Block the shaft. N Tighten down the mowing head firmly. NOTICE Remove the tool used to block the shaft. Removing the Mowing Head N Block the shaft. N Unscrew the mowing head clockwise.
English NOTICE Remove the tool used to block the shaft. Removing the Metal Cutting Attachment Fuel Your engine requires a mixture of gasoline and engine oil. WARNING WARNING Wear protective gloves to reduce the risk of direct contact with the sharp cutting edges. N Block the shaft. N Unscrew the mounting nut clockwise. N Remove cutting attachment and its mounting hardware from the gearbox – but do not remove the thrust plate (5).
English Store fuel only in approved safety-type fuel canisters in a dry, cool and safe location protected from light and the sun. Filling Up with Fuel Fueling Take care not to spill fuel while fueling and do not overfill the tank. Preparations STIHL recommends you use the STIHL filler nozzle for fuel (special accessory). Fuel mix ages – only mix sufficient fuel for a few weeks work. Do not store fuel mix for longer than 30 days.
English Full Harness Balancing the Machine The type and style of the harness depend on the market. The type and style of the harness and carabiner (spring hook) depend on the market. 1 The use of the harness is described in the chapter on "Approved Combinations of Cutting Attachment, Deflector, Handle and Harness". The carrying ring is integrated in the control handle on loop-handled units– see "Main Parts". Loop-handled units do not need to be balanced.
English When the correct floating position has been reached: N Starting / Stopping the Engine Tighten down the screw on the carrying ring firmly. Controls Detaching the unit from the harness Version with Bike Handle 1 N N Loosen the screw (3). 2 002BA312 KN 2 1 3 Press down the bar on the carabiner (1) and pull the carrying ring (2) out of the carabiner. 2 1 002BA313 KN 002BA268 KN Floating position N Mowing heads and grass cutting blades should just touch the ground.
English Version with Loop Handle Starting the Engine Also use this setting if the engine has been running but is still cold. Cranking 2 1 2 3 0414BA011 KN N Throttle trigger lockout Throttle trigger Stop switch with Run and 0 = Stop positions. Press the stop switch to switch off the ignition – see "Function of stop switch and ignition system". Function of stop switch and ignition system N Place the unit on the ground: It must rest securely on the engine support and the deflector.
English As soon as the engine runs Engine does not start in warm start position < 0414BA014 KN N 0414BA013 KN N N Hold the starter grip with your right hand. N Pull the starter grip steadily. NOTICE Do not pull out the starter rope all the way – it might otherwise break. N Do not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly. N Continue cranking until the engine runs.
English Transporting the Unit Operating Instructions During break-in period The type of transport guard depends on the metal cutting attachment supplied with the machine. Transport guards are available as special accessories. 681BA270 KN Using transport guard 681BA272 KN 681BA268 KN 230 mm Grass Cutting Blades A factory-new machine should not be run at high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period.
English Cleaning the Air Filter 3 N Reach into the recess (4) in the filter housing and take out the felt filter (5). N Fit a new felt filter element (5). As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air. Do not wash. 547BA022 KN 2 N Move the choke lever (1) to <. N Turn the screw (2) in the filter cover (3) counterclockwise until the cover is loose. N Ease the filter cover (3) over the choke lever and lift it away.
English Checking the Spark Plug N If the engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug. N Fit a new spark plug after about 100 operating hours – 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 Shut off the engine. Remove the spark plug boot (1). N Unscrew the spark plug (2). Installing the Spark Plug A N Clean dirty spark plug.
English Storing the Machine If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the cause may be the muffler. For periods of about 3 months or longer N Drain and clean the fuel tank in a well ventilated area. Have the muffler checked for contamination (carbonization) by your servicing dealer. N Dispose of fuel properly in accordance with local environmental requirements.
English Adjusting Nylon Line Maintaining the Mowing Head STIHL SuperCut Placing power tool on the ground Fresh line is advanced automatically if the remaining line is at least 6 cm (2 1/2 in) long. The blade on the deflector trims overlong lines to the correct length. 002BA104 KN STIHL AutoCut N Shut off the engine. N Lay your power tool on its back so that the cutting attachment mounting face is pointing up.
English The mowing head is supplied with illustrated instructions for replacing the blades. Keep the instructions for the mowing head in a safe place. WARNING To reduce the risk of injury, always shut off the engine before installing the blades. N Remove the mowing head. N Replace blades as shown in the illustrated instructions. N Mount the mowing head on the machine.
English Visual inspection (condition, leaks) X Complete machine Clean Replace any damaged parts X Control handle Check operation X X X X Replace Manual fuel pump (if fitted) Pickup body in fuel tank X X Check X Replace Clean Carburetor Check idle adjustment – the cutting attachment must not run X X X X Cooling inlets X X Readjust electrode gap X Replace after every 100 operating hours Visual inspection Clean All accessible screws and nuts (not adjustRetighten ing screws) FS 70
Visual inspection Cutting attachment X as required if damaged if problem every 12 months monthly weekly X Check tightness X Sharpen X Safety labels Replace 32 X Replace Metal cutting attachment 1) after each refueling stop before starting work The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly.
English Minimize Wear and Avoid Damage Observing the instructions in this manual helps reduce the risk of unnecessary wear and damage to the power tool. The power tool must be operated, maintained and stored with the due care and attention described in this owner's manual. servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information. Alterations or modifications to the product not approved by STIHL.
English Main Parts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 # 5 2 1 4 6 8 7 3 9 10 20 12 14 13 16 15 11 17 Manual fuel pump Tank cap Tank Starter grip Spark plug boot Muffler Throttle trigger Stop switch Throttle trigger lockout Bike handle (handlebar) Handle support Carrying ring Throttle cable retainer Carburetor adjusting screws Choke lever Air filter cover Machine support Loop handle Barrier bar (country specific) Drive tube Sleeve Serial number 18 19 21 12 8 9 7 # 34
English Noise and Vibration Data Specifications Noise and vibration data measurements include idling and rated maximum speed with the same duration of exposure. Engine 2 3 1 1 2 3 4 5 4 002BA270 KN 5 Single cylinder two-stroke engine Mowing head Deflector for mowing heads only Blade Deflector for grass cutting blades only Grass cutting blade Displacement: Bore: Stroke: Engine power to ISO 8893: Idle speed: Cut-off speed (rated): Max. output shaft speed (cutting attachment): 27.
English FS 70 RC Handle, left with mowing head: 7.6 m/s2 with metal tool: 6.6m/s2 Handle, right 2 6.0 m/s 6.6 m/s2 The K-factor in accordance with Directive 2006/42/EC is 2.0 dB(A) for the sound pressure level and sound power level; the K-factor in accordance with Directive 2006/42/EC is 2.0 m/s2 for the vibration level. REACH REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances.
English Disposal EC Declaration of Conformity ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen Observe all country-specific waste disposal rules and regulations. Germany ANDREAS STIHL AG & Co. KG Produktzulassung (Product Licensing) The year of manufacture and serial number are applied to the product. Done at Waiblingen, 28.11.2018 ANDREAS STIHL AG & Co. KG 000BA073 KN declare in exclusive responsibility that the product STIHL products must not be thrown in the garbage can.
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