STIHL BG 55, 65, 85, SH 55, 85
Contents
1. 295BA039 KN 295BA040 KN 295BA041 KN Use a suitable tool to disengage the Push guideways 9 on suction Removing the elbow tab 7 on the intake screen 8 and tube 10 onto lugs 11 on fan 1 Loosen the screw 4 then open the intake screen housing and rotate suction tube f r in direction of arrow to lock it in Use a suitable tool to lift the position tab 7 on the fan housing stub 6 Rotate the blower tube or elbow in the direction of the arrow and then pull it out e Tighten down the screw 4 see Guide to Using this Manual BG 55 BG 65 BG 85 SH 55 SH 85 11 Mix Ratio STIHL 50 1 two stroke engine oil 50 parts gasoline to 1 part oil Other high quality two stroke engine oils 25 parts gasoline to 1 part oil Examples Gaso STIHL Other high line engine oil quality two 50 1 stroke engine oils 25 1 Liters Liters cc Liters cc 1 0 02 20 0 04 40 5 0 10 100 0 20 200 10 0 20 200 0 40 400 15 0 30 300 0 60 600 20 0 40 400 0 80 800 25 0 50 500 1 00 1000 e Use a canister approved for storing fuel Pour oil into the canister first then add gasoline and mix thoroughly BG 55 BG 65 BG 85 SH 55 SH 85 Gasoline Use only high quality brand name gasoline with a minimum octane rating of 90 leaded or unleaded If your machine is equipped with a catalytic converter you must use unleaded gasoline few tankfuls of leaded2. 1 5 4 5 5 Air velocity with nozzle m s 632 782 822 822 632 822 822 Maximum air flow rate mJ h 7302 7302 7802 7802 7302 6003 7802 6253 7802 6253 Vibration measurement to ISO 8662 Max RPM 4 Handle right left m s m s 8 12 9 02 9 02 9 02 8 12 2j 8 19 11 09 9 02 1 2 9 03 14 09 9 02 2 9 03 14 03 Vibration measurement to ISO 8662 Idle speed 4 Handle right left m s m s 4 12 4 02 4 02 4 02 442 2 4 03 4 03 4 00 2 4 03 4 03 4 02 2 4 03 4 03 Sound power level Lweq to ISO 37441 dB A 1012 1012 1012 1032 1012 999 1012 4003 1032 1009 Sound pressure level Lpeq to ISO 11201 dB A 912 912 902 892 912 973 902 999 902 999 Model BG 55 BG 65 BG 85 BG 85 catalytic converter SH 55 SH 85 SH 85 catalytic converter 1 Weighted equivalent level includes idling and maximum RPM with the same duration of exposure 2 Blower mode 3 Vacuum mode 4 For further data on compliance with Vibration Directive 2002 44 EC see www stihl com vib BG 55 BG 65 BG 85 SH 55 SH 85 Maintenance and Repairs Users of this machine may only carry out the maintenance and service work described in this user manual All other repairs must be carried out by a servicing dealer STIHL recommends that all maintenance and repair w
3. and Repairs 28 Certificate of Conformity 29 Quality Certification 30 STIHL BG 55 BG 65 BG 85 SH 55 SH 85 Printing inks contain vegetable oils paper can be recycled Printed on chlorine free paper 0458 295 0121 M10 E7 FST Printed in Germany ANDREAS STIHL AG amp Co KG 2007 BA_SE_001_003_01_12 fm Equipment and features This instruction manual may refer to several models with different features Components that are not installed on all models and related applications are marked with an asterisk Such components may be available as special accessories from your STIHL dealer Engineering improvements STIHL s philosophy is to continually improve all of its products As a result engineering changes and improvements are made from time to time If the operating characteristics or the appearance of your machine differ from those described in this manual please contact your STIHL dealer for assistance Therefore some changes modifications and improvements may not be covered in this manual BG 55 BG 65 BG 85 SH 55 SH 85 In addition to the operating instructions this manual may contain paragraphs that require your special attention Such paragraphs are marked with the symbols described below A Warning where there is a risk of an accident or personal injury or serious damage to property Caution where there is a risk of damagin
4. dirt from around the filter BG 55 BG 65 BG 85 SH 55 SH 85 Standard setting 295BA044 KN e Shut off the engine e Turn high speed screw H counterclockwise as far as stop max 3 4 turn e Set the low speed screw L to one full turn open BG 55 BG 65 BG 85 SH 55 SH 85 With idle speed screw LA General information The carburetor comes from the factory with a standard setting This setting provides an optimum fuel air mixture under most operating conditions With this carburetor it is only possible to adjust the engine idle speed within fine limits English Standard setting e Check the air filter and replace if necessary e Start and warm up the engine e Carefully screw the idle speed screw LD down onto its seat counterclockwise left hand thread Then open it two full turns clockwise standard setting Engine stops when engine is idling Carry out standard setting open the LD screw two full turns e Rotate idle speed screw LD about one half turn clockwise until the engine runs smoothly Erratic idling behavior poor acceleration Carry out standard setting open the LD screw two full turns e Rotate idle speed screw LD about one half turn counterclockwise 18 English Catalytic Converter Power tools with a catalytic converter may only be operated with unleaded gasoline and STIHL two stroke engine oils in a mi
5. operator is responsible for avoiding injury to third parties and damage to their property Do not lend or rent your blower without the owner s manual Be sure that anyone using your blower understands the information contained in this manual You must be rested healthy and in good physical condition to operate a power tool Do not operate the blower if you are under the influence of any substance drugs alcohol etc which might impair vision dexterity or judgment Attachments Only attachments supplied by STIHL or expressly approved by STIHL for use with your specific model are authorized Other attachments must not be used because of the increased risk of accidents STIHL excludes all liability for personal injury and damage to property caused while using unauthorized attachments Safety Precautions Special safety precautions must be observed when working with the power tool It is important that you read fully understand and observe the following safety precautions and warnings Careless or improper use of any blower may cause serious or fatal injury Observe all applicable local safety regulations standards and ordinances If you have never used this type of power tool before Have your STIHL dealer or other experienced user show you how to operate your blower Minors should never be allowed to use a blower Bystanders especially children and animals should not be allowed in the are
6. 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 e Push the new pickup body into the hose e Place the pickup body in the tank 13 295BA033 KN e Before fueling clean the filler cap and the area around it to ensure that no dirt falls into the tank e Position the unit so that the filler cap is facing up Take care not to spill fuel while fueling and do not overfill the tank STIHL recommends use of the STIHL filling system special accessory Important After fueling tighten down filler cap by hand as securely as possible Storing Fuel Store fuel only in approved safety type fuel canisters in a dry 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 3 months Exposure to light the sun low or high temperatures can quickly make the fuel mix unusable e Thoroughly shake the mixture in the canister before fueling your machine A Pressure may build up in the canister open it carefully Clean the fuel tank and canister from time to time 2B Dispose of remaining fuel and cleaning fluid properly in accordance with local regulations and environment requirements BG 55 BG 65 BG 85 SH 55 SH 85 2958 015 KN All models Set the choke lever 6 _ For cold start t
7. use work break put it down so that it does not endanger others English Wear sound barriers ear plugs or ear mufflers to protect your hearing Wear heavy duty gloves preferably made of chrome leather Fueling Gasoline is an extremely flammable fuel Do not smoke or bring any fire or flame near the fuel Always shut off the engine before refueling Do not fuel a hot engine fuel may spill and cause a fire Remove the fuel filler cap on the unit carefully so as to allow any pressure build up in the tank to release slowly Fuel your blower in well ventilated areas outdoors only Wipe off any spilled fuel before starting and check for leakage Take care not to get fuel on your clothing If this happens change immediately English General Precautions Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings shouts alarms etc is restricted Always hold your unit firmly make sure you always have a firm and secure footing 5 2 S S 2 e S S Examine the work area Do not direct the air blast towards bystanders since the air flow can blow small objects at great speed Work calmly and carefully under good visibility and daylight conditions only Stay alert so as not to endanger others During Operation Your power tool produces toxic exhaust fumes as soon as the engine is running These gases e g carbon monoxid
8. B A Guaranteed sound power level SH 55 103 dB A SH 85 103 dB A SH 85 catalytic converter 106 dB A Certificate of Conformity ANDREAS STIHL AG amp Co KG Badstr 115 71336 Waiblingen certify that the new machines described below Category Blower vacuum shredder Make STIHL Model BG 55 BG 65 BG 85 BG 85 catalytic converter SH 55 SH 85 SH 85 catalytic converter Serial identification 4229 Displacement 27 2 cm conform to the specifications of Directives 98 37 EC 89 336 EEC and 2000 14 EC The products have been developed and manufactured in compliance with the following standards EN ISO 12100 EN 61000 6 1 EN 55012 The measured and guaranteed sound power level was determined according to Directive 2000 14 EEC Annex V using the ISO 11094 standard BG 55 BG 65 BG 85 SH 55 SH 85 BG 55 BG 65 BG 85 SH 55 SH 5 English Quality Certification DIN ISO 9001 sk 000BA026 All STIHL products comply with the highest quality standards An independent organization has certified that all products manufactured by STIHL meet the strict requirements of the ISO 9001 standard for quality management systems in terms of product development materials purchasing production assembly documentation and customer service 30 English BG 59 BG 65 BG 85 SH 55 SH 85 31 English 32 BG 55 BG 65 BG 85 SH 55 SH 85 0458 295 1 englisch English
9. N 295BA004 KN e Push the blower tube 1 with lug 2 e Push nozzle 4 onto the blower Removing blower tube into the fan housing stub 3 and tube 1 as far as lug 5 position a e Use a suitable tool to lift ihe rotate it in the direction of the arrow long or position b short and fr ni BER tab 6 on the fan housing stub 3 to lock in position rotate it in the direction of the arrow Rotate the blower tube in the direction of the arrow and then pull it out to lock in position See Assembling the Vacuum Shredder for installation and removal of vacuum attachment see Guide to Using this Manual BG 55 BG 65 BG 85 SH 55 SH 85 9 English Assembling the Vacuum Shredder 295BA037 KN PA 2 FA pra X Ed o N oo e e 2 lt z a a a wo wo lo o o eo e N N e From inside the catcher bag 2 e Push elbow 1 into the catcher Loosen the screw 4 push the elbow 1 through the bag 2 as far as mark see arrow e Push elbow 1 with lug 5 into intake opening see arrow and pull and secure it with the Velcro fan housing stub 6 and rotate in it outwards until it is firmly seated strip 3 direction of arrow to lock in position e Attach the carrying strap Tighten down the screw 4 see Guide to Using this Manual see Guide to Using this Manual 10 BG 55 BG 65 BG 85 SH 55 SH 85 English 295BA037 KN u JA y
10. STIHL STIHL BG 55 65 85 SH 55 85 Instruction Manual English Dear Customer Thank you for choosing a quality engineered STIHL product This machine has been built using modern production techniques and comprehensive quality assurance Every effort has been made to ensure your satisfaction and troublefree use of the machine Please contact your dealer or our sales company if you have any queries concerning your machine lla Tuo Hans Peter Stihl CE Contents Guide to Using this Manual 2 Safety Precautions 3 Using the Blower 8 Using the Vacuum Shredder 8 Assembling the Blower 9 Assembling the Vacuum Shredder 10 Fuel eroe aes 12 Fueling icaro ai 13 Starting Stopping the Engine 14 Cleaning the Air Filter 17 Adjusting the Carburetor 17 Catalytic Converter 19 Checking the Spark Plug 20 Engine Running Behavior 21 Rewind Starter seen 21 Storing the Machine 21 Maintenance Chart 22 Minimize Wear and Avoid Damage en 23 Parts and Controls 24 Specifications 26 Special Accessories 28 Maintenance
11. a where a blower is in use BG 55 BG 65 BG 85 SH 55 SH 85 Before Starting Check that your power tool is properly assembled and in good condition refer to the appropriate chapters in the instruction manual Throttle trigger must move freely and spring back to idle position when released Stop switch must move easily to 0 Checkthat spark plug boot is secure a loose boot may cause arcing that could ignite combustible fumes and cause a fire Check condition of fanwheel and fan housing see chapter on Using the Vacuum Shredder A worn fan housing cracks nicks chipping may result in an increased risk of injury from escaping foreign matter If either the fanwheel or the fan housing are damaged contact your STIHL dealer for assistance BG 55 BG 65 BG 85 SH 55 SH 85 Tighten down the fuel cap as securely as possible This reduces the risk of W unit vibrations causing the fuel cap to loosen or come off and spill quantities of fuel To reduce the risk of serious or fatal burn injuries check for fuel leakage while refueling and during operation If fuel leakage is found do not start or run the engine until leak is fixed Store gasoline and oil in properly labeled approved safety type cans Transporting the Unit Always stop the engine Transporting in a vehicle Properly secure your unit to prevent turnover fuel spillage and damage When the unit is not in
12. d be performed by a servicing dealer STIHL recommends that you have maintenance and repair work carried out only by an authorized STIHL servicing dealer STIHL servicing dealers are able to attend regular training courses and receive technical information bulletins on the latest engineering changes If these operations are not carried out as specified the user assumes responsibility for any damage that may occur Among other things this includes Damage to the engine due to neglect or deficient maintenance e g of air and fuel filters incorrect carburetor adjustment or inadequate cleaning of cooling air inlets intake ports cylinder fins Corrosion and other consequential damage resulting from improper storage Damage to the product resulting from the use of poor quality replacement parts 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 The user is responsible for all damage caused by non observance of the safety precautions operating and maintenance instructions in this manual This includes in particular Alterations or modifications to the product not approved by STIHL Using tools or accessories which are neither approved or suitable for the product or are of a poo
13. diaphragms sticking together e Thoroughly clean the machine pay special attention to the cylinder fins and air filter e Store the machine in a dry high or locked location out of the reach of children and other unauthorized persons 21 Rewind Starter To help prolong the wear life of the starter rope observe the following points e Pull the starter rope only in the direction specified e Donotpullthe rope over the edge of the guide bushing e Do not pull out the rope more than specified since it might break e Donotletthe starter grip snap back guide it slowly into the housing See also chapter Starting Stopping the Engine Replace a damaged starter rope in good time or have it replaced by your STIHL dealer Engine Running Behavior If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor properly adjusted the cause may be in the muffler e Have the muffler checked for contamination coking STIHL recommends that all maintenance and repair work be carried out by an authorized STIHL dealer BG 55 BG 65 BG 85 SH 55 SH 85 o la e s KM E NE 5 8 z amp 8 o 9 8 d 2 E o amp xz ix x x ke OT Tae x x x x x x x x BG 55 BG 65 BG 85 SH 55 SH 85 weekly after each refueling stop x after finishing work or da
14. e may be colorless and odorless To reduce the risk of serious or fatal injury from breathing toxic fumes never run the engine indoors or in poorly ventilated locations Ensure proper ventilation when working in trenches hollows or other confined areas Take a break in good time to avoid tiredness or exhaustion To reduce the risk of fire do not smoke while operating or standing near your power tool Note that combustible fuel vapor may escape from the fuel system Do not work alone keep within calling distance of others in case help is needed Never attempt to modify the controls or the safety devices in any way To reduce the risk of accidents never operate your power tool if itis damaged improperly adjusted or not completely or securely assembled Starting the Engine Start the engine at least 3 meters from the fueling spot outdoors only Place the unit on firm level ground in an open area Make sure you have good balance and secure footing Hold the unit securely Your power tool is a one person unit Do not allow other persons within a radius of 5 meters of your own position even when starting Start the engine as described in the instruction manual BG 55 BG 65 BG 85 SH 55 SH 85 To reduce the risk of personal injury from fire never attempt to pick up hot or burning substances e g smoldering ashes glowing cigarettes To reduce the risk of fatal injury from fire or expl
15. g the machine or its individual components C Note or hint which is not essential forusing the machine but may improve the operator s under standing of the situation and result in better use of the machine sj Note or hint on correct procedure in order to avoid damage to the environment English Guide to Using this Manual Pictograms All the pictograms attached to the machine are shown and explained in this manual The operating and handling instructions are supported by illustrations Symbols in text The individual steps or procedures described in the manual may be marked in different ways e A bullet marks a step or procedure without direct reference to an illustration A description of a step or procedure that refers directly to an illustration may contain item numbers that appear in the illustration Example Loosen the screw 1 Lever 2 English Clothing and Equipment Wear proper clothing and equipment Clothing must be sturdy and snug fitting but allow complete freedom of movement an overall and jacket combination is recommended Avoid loose fitting jackets scarves neckties jewelry or anything that could get into the air intake Tie up and confine long hair e g with a hair net cap hard hat etc Wear steel toed safety boots with nonslip soles Wear safety glasses goggles or a face shield to reduce the risk of injury from thrown objects BE De The
16. gasoline will greatly reduce the efficiency of the catalytic converter Engine Oil Use only quality two stroke engine oil We recommend STIHL two stroke engine oil since it is specially formulated for use in STIHL engines and guarantees a long engine life If STIHL two stroke engine oil is not available use only quality two stroke oil designed for use in air cooled engines Do not use oils designed for water cooled engines or engines with a separate lubricating system e g conventional four stroke engines Use only STIHL 50 1 two stroke engine oil for the fuel mix in models with a catalytic converter English Fuel Your engine requires a mixture of gasoline and engine oil For health reasons avoid direct skin contact with gasoline and avoid inhaling gasoline vapor STIHL MotoMix STIHL recommends the use of STIHL MotoMix This ready to use fuel mix contains no benzol or lead has a high octane rating and ensures that you always use the right mix ratio STIHL MotoMix is specially formulated for use in STIHL engines and guarantees a long engine life MotoMix is not available in all markets Mixing Fuel fe Unsuitable fuels or lubricants or mix ratios other than those specified may result in serious damage to the engine Poor quality gasoline or engine oil may damage the engine sealing rings hoses and the fuel tank 12 English 2 M x co eo lt cd fe o N Change
17. gine is cold Now start the engine Unscrew and dry off the spark plug English To stop the engine e Move switch to position O Additional hints on starting If the engine does not start e Make sure all settings are correct choke shutter throttle trigger in starting throttle position stop switch to I e Repeat the starting procedure If the engine still does not start Move switch to O Pull off the spark plug boot 7 Open throttle wide Crank the engine several times with the starter to clear the combustion chamber 16 English 295BA022 KN 17 Adjusting the Carburetor With idle speed screw LD The carburetor is set at the factory to provide an optimum fuel air mixture under all operating conditions 295BA046 KN Take the filter 3 out of the housing 4 Install a new filter 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 Replace any damaged parts Fit the filter 3 in the housing 4 Fit the filter cover 2 so that it snaps into positon 295BA019 KN Cleaning the Air Filter Dirty air filters reduce engine power increase fuel consumption and make starting more difficult If there is a noticeable loss of engine power e Move choke lever to e Squeeze the tabs 1 together swing filter cover 2 open and take it away e Clean away loose
18. ily x starting work before x English Maintenance Chart The following maintenance intervals apply to normal operating conditions only If your daily working time is longer than normal or operating conditions are difficult very dusty work area etc shorten the specified intervals accordingly Visual inspection conditon leaks Clean Check operation Clean Replace Check Replace Clean Check idle setting Readjust idle Readjust electrode gap Replace after 100 hours of operation Clean Tighten Replace Complete machine Control handle Air filter Filter in fuel tank Fuel tank Carburetor Spark plug Cooling air intakes All accessible screws and nuts not adjusting screws Safety labels 22 English Parts Subject to Wear and Tear Some parts of the power tool are subject to normal wear and tear even during regular operation in accordance with instructions and depending on the type and duration of use have to be replaced in good time Among other parts this includes Filters air fuel Fanwheel shredder blade Catcher bag Starter mechanism Spark plug Components of anti vibration system 23 Maintenance Work All the operations described in the Maintenance Chart must be performed on a regular basis If these maintenance operations cannot be performed by the owner they shoul
19. o For warm start to e Press fuel pump bulb 6 at least five times BG 55 BG 65 BG 85 SH 55 SH 85 z x ce eo lt e wo o N BG 85 SH 85 Observe safety precautions see chapter Safety Precautions Start as follows e Set switch 1 to position I Squeeze the throttle trigger 2 and move the setting lever 4 to midway position at the same time e Release the throttle trigger this is the starting throttle position Xy The setting lever enables you to select and hold any throttle position between idle and full throttle Move the setting lever to the idle position before shutting off the engine English Starting Stopping the Engine 295BA013 KN BG 55 65 SH 55 Observe safety precautions see chapter Safety Precautions Start as follows e Setswitch 1 to position I e Squeeze the throttle trigger 2 and press in the interlock button 3 at the same time e Release the throttle trigger e Release the interlock button this is the starting throttle position C The interlock button enables the throttle trigger to be locked in the full throttle position 14 English If the engine does not start after 10 pulls with the choke lever setto Set choke to pull the starter rope five times set choke to and continue cranking If engine is warm Continue cranking until engine runs choke lever to As soon as engine r
20. or small animals when vacuuming and blowing in open areas and gardens To help avoid the risk of injuring animals do not run the unit at high engine speed BG 55 BG 65 BG 85 SH 55 SH 5 Using the Vacuum Shredder E D z N 9 lt dd Te o N TG i My ey OV Your vacuum shredder is designed for two handed operation Hold and operate the unit with your right hand on the control handle and your left hand on the assist handle Wear the shoulder strap for the catcher bag over your left shoulder not across your chest The large diameter suction tube enables the unit to pick up all kinds of trash such as large leaves cardboard and pieces of bark see Guide to Using this Manual English Using the Blower lt m e 0 o lt 300 N e Your blower is designed for one handed operation It can be carried by the control handle in either the right or left hand The round nozzle is particularly suitable for use on uneven surfaces e g fields and lawns The fan nozzle produces a broad and powerful airstream at ground level It can be aimed and controlled very accurately This nozzle is highly effective for blow sweeping sawdust leaves grass cuttings etc on flat surfaces Watch out for small animals when using the blower on open ground in yards and gardens see Guide to Using this Manual English Assembling the Blower 295BA003 K
21. ork be carried out by an authorized STIHL dealer STIHL dealers regularly attend training courses and are supplied with the necessary technical information When repairing the machine only use replacement parts which have been approved by STIHL for this power tool or are technically equivalent Only use high quality replacement parts in order to avoid the risk of accidents or damage to the machine STIHL recommends the use of genuine STIHL replacement parts Original STIHL parts can be identified by the STIHL part number the 12 logo and the STIHL parts symbol amp The symbol may appear alone on small parts BG 55 BG 65 BG 85 SH 55 SH 85 English Special Accessories Vacuum attachment Gutter cleaning attachment Round nozzle Fan nozzle Contact your STIHL dealer for more information on these and other special accessories 28 English Technical documents deposited at ANDREAS STIHL AG amp Co KG Produktzulassung Done at Waiblingen April 1 2005 ANDREAS STIHL AG amp Co KG ER Steinhauser Director Group Product Management Engineering Services 29 Measured sound power level BG 55 102 dB A BG 65 101 dB A BG 85 102 dB A BG 85 catalytic converter 106 dB A Guaranteed sound power level BG 55 103 dB A BG 65 102 dB A BG 85 103 dB A BG 85 catalytic converter 107 dB A Measured sound power level SH 55 102 dB A SH 85 102 dB A SH 85 catalytic converter 105 d
22. osion never attempt to pick up combustible fluids e g gasoline or any materials soaked in combustible fluids Move the stop switch to 0 before opening the intake screen In order to reduce the risk of injury from contact with rotating parts and damage to the motor the intake screen must always be closed and secured in place when the suction tube is not mounted BG 55 BG 65 BG 85 SH 55 SH 85 x gt AI a mn I RE z x x lt fea Te o N Using the Vacuum Attachment For specific assembling instructions see the appropriate chapter of this instruction manual The catcher bag must always be mounted to the unit when you use the unit in the vacuum mode Hold the unit firmly at all times with both hands on the two handles Wear the shoulder strap over your left shoulder not across your chest see Guide to Using this Manual English Operate your power tool only in the areas specified in the instruction manual Operate your power tool so that it causes a minimum of noise and emissions Do not run the engine unnecessarily Accelerate the engine only when working Take care in slippery conditions on ice in wet or snow on slopes or uneven ground Watch out for obstacles Roots ditches holes or rubbish which could cause you to trip or stumble When your power tool is not in use put it down in a safe place so that it does not endanger others Always sh
23. ounterclockwise richer no further than stop BG 55 BG 65 BG 85 SH 55 SH 85 English Checking the Spark Plug e Rectify the problems which have caused fouling of spark plug To much oil in fuel mix Dirty air filter Unfavorable running conditions e Fit anew 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 To reduce the risk of arcing and fire z z N 4 o E 3 Ss z e g E e eo On all spark plugs e Always press the boot 2 firmly on to the spark plug 3 If engine is down on power difficult to start or runs poorly at idle speed first check the spark plug e Remove the spark plug see Starting Stopping the Engine e Clean dirty spark plug z x o lt a o e o BG 55 BG 65 BG 85 SH 55 SH 85 e Ifthe spark plug comes with a detachable adapter nut 1 screw it on firmly e Check electrode gap A and readjust if necessary see Specifications 20 English Storing the Machine For periods of about 3 months or longer e Drain and clean the fuel tank in a well ventilated area e Dispose of remaining fuel and cleaning solution properly in accordance with local environmental requirements e Run engine until carburetor is dry this helps prevent carburetor
24. r quality Using the product for purposes for which it was not designed Using the product for sports or competitive events Consequential damage caused by continuing to use the product with defective components BG 55 BG 65 BG 85 SH 55 SH 85 PA 4 Nn o lt a I o A Blower tube Round nozzle Fan nozzle Serial number see Guide to Using this Manual BG 55 BG 65 BG 85 SH 55 SH 85 17 18 19 Filter housing Fuel filler cap Fuel tank Assist handle Control handle Switch Throttle trigger Intake screen 10 11 12 13 14 15 16 English Parts and Controls Tab Setting lever Spark plug boot Muffler Starter grip Carburetor adjusting screw Choke lever Fuel pump ON Oa RP WD a English z NC o eo lt en wo o N 20 Suction tube 21 Elbow 22 Catcher bag see Guide to Using this Manual BG 55 BG 65 BG 85 SH 55 SH 85 25 English Specifications Engine Ignition System Fuel System Single cylinder two stroke engine Type Electronic Carburetor All position Displacement 27 2 cm magneto ignition diaphragm Bore 34 mm Spark plug Bosch WSR 6 F Pa a suppressed or integral fue Stroke 30 mm NGK BPMR 7 A pump Idle speed 2800 rpm Electrode gap 0 5 mm Fuel tank capacity 0 4 I 400 cm Fuel mix See chapter on Fuel 26 BG 55 BG 65 BG 85 SH 55 SH 85 English 27 Weight kg 4 1 4 1 4 2 4 3 5
25. uns e BG 55 65 SH 5 Blip the throttle trigger so that interlock button pops out and the engine settles down to idle speed e BG85 SH85 Move setting lever forwards to end position If the engine stops during warm up or acceleration e Repeat starting procedure as described under If engine is cold Your unit is now ready for operation 15 e Donotletthe starter grip snap back Guide it slowly back into the housing so that it can rewind properly 295BA043 KN If the engine is cold choke position z XL 9 c m re o N e Pull the starter rope five times Move the choke lever 5 to e Place the unit on the ground e Continue cranking until engine runs e Make sure you have a firm footing Hold the unit firmly on the ground with your left hand on the handle and press down e Pull the starter grip slowly with your right hand until you feel it engage and then give it a brisk strong pull Do not pull out the starter rope all the way it might break BG 55 BG 65 BG 85 SH 55 SH 85 2958 018 KN Fuel tank run until dry and then refueled e Press the fuel pump bulb 6 at least five times bulb must be filled with fuel e Now start the engine BG 55 BG 65 BG 85 SH 55 SH 85 Refit the spark plug and connect the spark plug boot push it down firmly Move switch to I Set choke lever to even if the en
26. use of genuine STIHL spare parts Such parts have been optimized for the machine and the user s requirements Before starting any maintenance or repair work and before cleaning the machine always stop the engine and disconnect the spark plug boot to avoid all risk of injury if the engine starts up inadvertently Exception adjustment of carburetor and idle speed Vibrations Prolonged use of the unit may result in vibration induced circulation problems in the hands whitefinger disease No general recommendation can be given for the length of usage because it depends on several factors The period of usage is prolonged by Hand protection wearing warm gloves breaks The period of usage is shortened by Any personal tendency to suffer from poor circulation symptoms frequently cold fingers itching Low outside temperatures Gripping force a tight grip hinders circulation Continual and regular users should monitor closely the condition of their hands and fingers If any of the above symptoms appear seek medical advice BG 55 BG 65 BG 85 SH 55 SH 85 i Vacuuming abrasive material such as grit stone chips etc causes the fanwheel and fan housing to wear at a rapid rate This results in a considerable loss of suction power In such a case you should contact your STIHL dealer Take particular care when vacuuming wet leaves since they may block the fan Watch out f
27. ut off the engine before leaving your power tool unattended English Do not service or store the machine near a naked light risk of fire due to the fuel Check fuel cap regularly for tightness Use only the spark plugs approved by STIHL see Specifications Inspect ignition lead insulation in good condition secure connection To reduce the risk of fire due to ignition outside the cylinder move the slide control stop switch to STOP or 0 before turning the engine over on the starter with the spark plug boot removed or the spark plug unscrewed Check that the muffler is in perfect working condition Do not use the machine if the muffler is damaged or missing risk of fire Hearing damage Do not touch the hot muffler risk of burns The condition of the anti vibration buffers influences the machine s vibrations they must be examined regularly Maintenance and repairs The machine must be serviced regularly Do not attempt any maintenance or repair work not described in your Owner s Manual All other work should be carried out by a servicing dealer STIHL recommends that maintenance and repair work be carried out only by authorized STIHL dealers STIHL dealers receive regular training and are supplied with technical information Use only high quality replacement parts in order to avoid the risk of accidents or damage to the machine Contact a dealer if in doubt STIHL recommends the
28. x ratio of 50 1 see chapter Fuel The catalytic converter in the muffler reduces noxious emissions in the exhaust gas Correct adjustment of the carburetor if adjustable and observance of the specified mix ratio of gasoline and two stroke engine oil are essential to minimize harmful exhaust emissions and ensure a long catalyst service life see Guide to Using this Manual 19 Adjusting idle speed 295BA045 KN Engine stops while idling Setlowspeed screw L to one full turn open e Turn idle speed screw LA slowly clockwise until the engine runs smoothly then back it off JA turn from that position Erratic idling behavior poor acceleration even though low speed screw is open one full turn Idle setting is too lean Turn low speed screw L counterclockwise until the engine runs and accelerates smoothly It is usually necessary to change the setting of the idle speed screw LA after every correction to the low speed screw L Adjustment for operation at high altitude or at sea level A slight correction of the setting may be necessary if engine power is not satisfactory when operating at high altitude or at sea level e Check the air filter and clean it if necessary e Warm up the engine At high altitude e Rotate the high speed screw H clockwise leaner no further than stop At sea level e Rotate the high speed screw H c
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