STIHL FS 44 - DVD Rock Depot... Best Rock Concert DVDs
Contents
1. 357BA053 KN zZ x q D e lt a fe oO Push shaft 3 into the drive tube turn it to and fro until distance A is less than 10mm 3 8 Slide the drive tube into the gear head turn drive shaft 4 back and forth until mark is reached Line up the gear head Tighten down the clamp screws 47 Sharpening Cutting Tools 357BA055 KN Grass cutting blade 230 4 Never straighten or weld a bent or cracked grass cutting blade it might shatter and cause serious or fatal injury 48 Resharpen only when all cutting edges 1 on both sides of the blade are dull This ensures balanced wear To avoid out of balance Resharpen the cutters 2 uniformly do not alter the contour of the parent blade 3 in any way After resharpening about 5 times have blade checked on STIHL balancer 5910 850 2600 and rebalanced as necessary Sharpen correctly If slightly dull Use flat file 4 0814 212 3310 In case of more serious wear or nicks Resharpen with a grinder maintain a sharpening angle of 30 A on the cutting edge 1 File back the cutting edge parallel to the lines B see illustration Resharpen frequently take away as little material as possible two or three strokes of the file are usually enough 357BA056 KN 357BA057 KN 6 x ive o lt a N it oO Grass cutting blade 230 8 Never straighten or weld a bent or cracked grass cutting blade it m2. 343BA042 oO Tt fo qL Q oO t ise As soon as engine runs Make sure carburetor is correctly adjusted cutting tool must not If engine is cold rotate when engine is idling Warm up engine for brief period at full throttle Release the throttle trigger At very low outside temperatures Turn the filter cover to RUN so Allow engine to warm up that engine returns to idle speed As soon as engine runs If engine is warm Warm up engine for about 1 minute Blip the throttle trigger 2 to dis at full throttle engage the spring lock 3 so that Release throttle trigger the engine can return to idle speed and turn filter cover to RUN so that engine returns to idle speed To shut down the engine Move the stop switch 1 to D 41 i P If the engine doesn t start 42 If you did not turn the filter cover to RUN quickly enough after the engine began to fire the combustion chamber is flooded Remove spark plug boot 5 Unscrew and dry off the spark plug Move stop switch to position Open the throttle fully Pull the starter rope several times to clear the combustion chamber Are 343BA034 Refit the spark plug and connect the spark plug boot Set stop switch to J position Turn filter cover to RUN even if engine is cold Now start the engine Fuel tank run until dry and then refueled Press tr
3. Coverage by STIHL Incorporated STIHL Incorporated warrants to the ultimate purchaser and each subsequent purchaser that your small off road equipment engine will be designed built and equipped at the time of sale to meet all applicable regulations STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that your engine is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years Warranty Period The warranty periods will begin on the date the utility equipment engine is purchased by the initial purchaser and you have signed and sent back the warranty card to STIHL If any emission related part on your engine is defective the part will be replaced by STIHL Incorporated at no cost to the owner Any warranted part which is not scheduled for replacement as required maintenance or which is scheduled only for regular inspection to the effect of repair or replace as necessary will be warranted for the warranty period Any warranted part which is scheduled for replacement as required mainten ance will be warranted for the period of time up to the first scheduled replace ment point for that part Diagnosis You as the owner shall not be charged for diagnostic labor which leads to the determination that a warranted part is defective However if you claim warranty for a component and the machine is tested a
4. se to RUN Also use this setting if engine has been running but is still cold 343BA031 Put the unit on the ground It must rest securely on the engine support and deflector Check that the cutting tool is not touching the ground or any other obstacles Make sure you have a firm footing Hold the unit with you left hand around the handle hose thumb under the handle and press it down firmly Do not stand or kneel on the drive shaft 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 starter rope more than 70cm 27 it might break Do not let the starter grip snap back guide it slowly into the housing so that the starter rope can rewind properly When engine begins to fire If engine is cold Turn filter cover 5 counter clockwise to and continue cranking until the engine runs If engine is warm Continue cranking until the engine runs 37 4 Y3 343BA037 As soon as engine runs If engine is cold Hold down interlock lever 2 and warm up engine for brief period at full throttle Release the throttle trigger 3 and turn filter cover to RUN so that engine returns to idle speed If engine is warm Hold down interlock lever 2 and blip the throttle trigger 3 to dis engage the spring lock 4 so that the engine can return to idle
5. notch see arrow on the throttle Fuel tank run until dry and then trigger retainer Turn the filter cover 4 counter refueled Letgo of the throttle trigger and clockwise to RUN spring lock The trigger is now in Press transparent fuel pump bulb the starting throttle position Also use this setting if engine has 7 several times it must be filled been running but is still cold with fuel Now start the engine 39 40 Press transparent fuel pump bulb at least five times it must be filled with fuel 343BA031 Put the unit on the ground It must rest securely on the engine support and deflector Check that the cutting tool is not touching the ground or any other obstacles Make sure you have a firm footing Hold the unit with you left hand around the handle hose thumb under the handle and press it down firmly Donot stand or kneel on the drive shaft 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 starter rope more than 70 cm 27 it might break Do not let the starter grip snap back guide it slowly into the housing so that the starter rope can rewind properly uae When engine begins to fire If engine is cold Turn filter cover 4 counter clockwise to and continue cranking until the engine runs If engine is warm Continue cranking until the engine runs
6. 2 1 2 6 4 5 12 8 Dispose empty mixing oil canisters only at authorized disposal locations 29 Fueling W 343BA027 Before fueling clean the filler cap and the area around it to ensure that no dirt falls into the tank Always thoroughly shake the mixture in the canister before fueling your machine LN arning In order to reduce the risk of burns or other personal injury from escaping gas vapor and fumes remove the fuel filler cap carefully so as to allow any pressure build up in the tank to release slowly Naming After fueling tighten fuel cap as securely as possible by hand Change the fuel pick up body every year 30 343BA028 Before storing your machine for a long period drain and clean the fuel tank and run engine until carburetor is dry Fitting the Harness Models with a loop handle come without a harness available as special accesso ry for these models Shoulder strap Puton the shoulder strap 1 Adjust length until the spring hook 3 rests against your right hip Special accessory Full harness Balancing the brushcutter Puton the full harness 2 Attach the spring hook 2 to Adjust length until the spring the clamp 3 on the drive shaft hook 3 rests against your right hip slacken the screw 4 Slide the clamp up or down the drive shaft Tighten the screw moderately Let go of the brushcutter and check t
7. 44 45 46 46 47 48 48 49 50 51 52 53 54 This manual contains warnings operating and safety precautions for the STIHL FS 44 brushcutter Pay special attention to the safety pre cautions outlined on pages 6 to 15 Allow only persons who understand this Manual to operate your brushcutter To receive maximum performance and satisfaction from your STIHL brush cutter it is important that you read and understand the maintenance and safety precautions before using your brush cutter Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this Manual Warning Because a brushcutter is a high speed cutting tool some special safety pre cautions must be observed to reduce the risk of personal injury Careless or improper use may cause serious or even fatal injury Make sure your unit is equipped with the proper deflector handle and harness for the type of cutting attachment being used Always wear proper eye protection STIHL s philosophy is to continually improve all of its products As a result engineering changes and improve ments are made from time to time If the operating characteristics or the appearance of your brushcutter differs from those described in this Manual please contact your STIHL dealer for information and assistance Parts and Controls Zz lt O O i lt x Q oO t RY 343BA061 KN
8. did not turn the filter cover to RUN quickly enough after the engine began to fire the combustion chamber is flooded Remove spark plug boot 5 Unscrew and dry off the spark plug Set slide control to STOP Open the throttle fully Pull the starter rope several times to clear the combustion chamber 343BA035 Refit the spark plug and connect the spark plug boot Set slide control to START Turn filter cover to RUN even if engine is cold Now start the engine Fuel tank run until dry and then refueled Press transparent fuel pump bulb 6 several times it must be filled with fuel Now start the engine 35 Starting Stop Switch on Throttle Trigger Housing 36 o ise fo lt Q o9 t n 4 3 343BA037 Observe safety precautions see chapter Safety Precautions Move stop switch 1 to I Hold down the interlock lever 2 squeeze the throttle trigger 3 and engage the spring lock 4 in the notch see arrow on the throttle trigger retainer Let go of the throttle trigger spring lock and interlock lever in that order The trigger is now in the star ting throttle position 343BA030 If engine is cold Press transparent fuel pump bulb at least five times Turn the filter cover 5 clockwise to it must be filled with fuel CHOKE If engine is warm Turn filter cover 5 counterclockwi
9. it on the ground about 3cm 1 1 4 fresh line is advanced blade on deflector trims surplus line to the correct length avoid tapping head more than once Line feed operates only if both lines still have a minimum length of 2 5cm 1 Fit new nylon line as described in in structions supplied with mowing head STIHL Polymatic 30 2 STIHL Autocut 24 2 Lay your brushcutter on its back with the gear head facing up Slip the plain washer 1 and thrust washer 2 over the shaft 3 and against the thrust plate 4 Screw mowing head counterclock wise onto the output shaft as far as it will go Block the output shaft Tighten down the mowing head securely Important Remove the stop pin z x N 2 ao Q oe Keep instruction sheet for mowing head in a safe place Removing mowing head Block the output shaft unscrew mowing head clockwise Adjusting nylon line Refer to instruction sheet supplied with mowing head ae 3 D 2 ao ite oO STIHL Fixed Line Head Releasing mounting nut Lay your brushcutter on its back Block the output shaft and with the gear head facing up unscrew the mounting nut Position the head on the thrust clockwise plate 1 Slip the thrust washer 2 over the If the mounting nut becomes slack due output shaft 3 to frequent loosening and retightening Block the output shaft fit a new one Screw mounting nut 4 counter clockwise on to
10. not protect the operator from all foreign objects gravel glass wire etc thrown by the rotating cutting attachment Thrown objects may also ricochet and strike the operator There fore to reduce the risk of injury to your eyes never operate a brushcutter unless wearing goggles or properly fitted safety glasses with adequate top and side protection complying with ANSI Z 87 1 or your applicable national standard To reduce the risk of injury to your face STIHL recommends that you also wear a face shield or face screen over your goggles or safety glasses A Warning Brushcutter noise may damage your hearing Wear sound barriers ear plugs or ear mufflers to protect your hearing Continual and regular users should have their hearing checked regularly Wear proper protective clothing Protect your hands with gloves when handling the brushcutter and the cutting tool Heavy duty nonslip gloves improve your grip and protect your hands Clothing must be sturdy and snug fitting but allow complete freedom of movement Avoid loose fitting jackets scarfs neckties jewelry flared or cuffed pants unconfined long hair or anything that could become caught on branches brush or moving parts of the unit Wear long pants made of heavy material to protect your legs Do not wear shorts pants sandals or go bare foot Secure hair so it is above shoulder level work Wear sturdy boots with nonslip soles Steel
11. speed Make sure carburetor is correctly adjusted cutting tool must not rotate when engine is idling At very low outside temperatures Allow engine to warm up As soon as engine runs Hold down interlock lever warm up the engine by running it for about 1 minute at full throttle release the throttle trigger Turn the filter cover to RUN so that engine returns to idle speed To shut down the engine Move stop switch 1 to the Qposition 38 If the engine doesn t start If you did not turn the filter cover to RUN quickly enough after the engine began to fire the combustion chamber is flooded Remove spark plug boot 6 Unscrew and dry off the spark plug Move stop switch to Dposition Hold down interlock lever and open the throttle fully Pull the starter rope several times to clear the combustion chamber 343BA038 Starting Stop Switch on Engine Housing 343BA040 343BA029 343BA039 343BA042 Refit the spark plug and connect Observe safety precautions see If engine is cold the spark plug boot chapter Safety Precautions Move stop switch to I position Turn filter cover 4 clockwise to Turn filter cover to RUN Move stop switch 1 to I CHOKE even if engine is cold Now start the engine Squeeze the throttle trigger 2 and engage the spring lock 3 in the If engine is warm
12. surplus line to correct length Fit new nylon line as described in instructions supplied with mowing head Q lt Q SA t oO STIHL Polycut 20 3 Lay your brushcutter on its back with the gear head facing up Screw mowing head counterclock wise onto the output shaft 1 as far as it will go Block the output shaft Tighten down the mowing head securely Important Remove the stop pin Keep instruction sheet for mowing head in a safe place Removing mowing head Block the output shaft unscrew mowing head clockwise Replacing cutting blades Refer to instruction sheet supplied with mowing head wo Q z a mM t oO STIHL Autocut 20 2 STIHL Autocut 25 2 Assembling STIHL Autocut 20 2 Push the bolt 1 into the mowing head 2 and engage it in the hexagon recess Screw the cap 3 counterclockwise on to the bolt and tighten it down securely Keep instruction sheet for mowing head in a safe place 343ET026 Mounting the mowing head Lay your brushcutter on its back with the gear head facing up Screw mowing head counterclock wise onto the output shaft 4 as far as it will go Block the output shaft Tighten down the mowing head securely Important Remove the stop pin Removing mowing head Block the output shaft unscrew mowing head clockwise 25 Adjusting nylon line 26 Hold the rotating mowing head horizontal above the ground tap
13. Bike Handle Version WON OCOANDAARWN a gt Ss a Bike handle Throttle trigger Throttle trigger interlock Handle support Clamp Harness Starter grip Spark plug boot Carburetor adjusting screws Fuel filler cap Machine support Throttle cable stop switch wire Throttle cable retainer Slide control J Handle Version OOAOANOODAARWND a a J handle Throttle trigger Throttle trigger interlock Handle support Clamp Harness Starter grip Spark plug boot Carburetor adjusting screws Fuel filler cap Machine support Throttle cable stop switch wire Stop switch Handle hose Definitions 1 Bike handle J handle To hold the brushcutter with both hands 2 Throttle trigger Controls the speed of the engine 3 Throttle trigger interlock Must be depressed before the throttle trigger can be activated 4 Handle support Connects the drive shaft to the handle bars 5 Clamp The device to connect the brush cutter to the harness 6 Starter grip The grip of the pull starter which is the device to start the engine 7 Spark plug boot Connects the spark plug to the ignition wire 10 11 12 13 14 15 Handle hose For holding machine during starting and cutting work Carburetor adjusting screws For tuning carburetor Fuel filler cap For closing the fuel tank Machine support For resting machine on the ground Throttle cable stop swit
14. Contents Parts and Controls Version with Bike Handle Version with J Handle Version with Loop Handle Version with Loop Handle and Standoff Lever All Versions Safety Precautions and Working Techniques Selecting the Cutting Tool Mounting the Bike Handle Mounting the J Handle Mounting Loop Handle with Standoff Lever Mounting the Loop Handle Version A Version B Mounting the Deflector Mounting the Cutting Tools STIHL Supercut 20 2 STIHL Polycut 20 3 STIHL Autocut 20 2 STIHL Autocut 25 2 STIHL Polymatic 30 2 STIHL Autocut 24 2 STIHL Fixed Line Head Grass Cutting Blade 230 Printed on chlorine free paper 1997 Andreas Stihl Waiblingen 0458 343 3021 AMP 16 18 19 19 20 21 22 23 24 24 25 25 26 26 27 28 Fuel Fueling Fitting the Harness Starting Version with Bike Handle Stop Switch on Throttle Trigger Housing Stop Switch on Engine Housing Motormanagement Adjusting Carburetor Checking Spark Plug Cleaning Air Filter Spark Arresting Screen in Muffler Gearbox Lubrication Lubricating Flexible Shaft Sharpening Cutting Tools Grass Cutting Blade 230 4 Grass Cutting Blade 230 8 Operating Instructions Storing the Machine Maintenance Chart Specifications Special Accessories Andreas Stihl Limited Warranty Federal and California Emission Control Systems Utility Engines STIHL 28 30 30 32 36 39 42 43
15. act never operate a brushcutter without a properly mounted deflector Keep the deflector and the skirt where appropri ate adjusted properly at all times see chapter on mounting the various cutting tools of your owner s manual Do not overreach Keep proper footing and balance at all times A Warning This brushcutter is normally to be used at ground level with the cutting attach ment parallel to the ground Use of a brushcutter above ground level or with the cutting attachment perpendicular to the ground may increase the risk of injury since the cutting attachment is more fully exposed and the brushcutter may be more difficult to control Never use your brushcutter as a hedge trimmer 11 A Warning When using rigid blades avoid cutting close to fences sides of buildings tree trunks stones or other such objects that could cause the brushcutter to kick out or could cause damage to the blade STIHL recommends use of the nylon line heads or Polycut head for such jobs In addition be alert to an increased possibility of ricochets in such situations Do not operate using the starting throttle lock as you do not have control of the engine speed See section of your owner s manual on the proper use of the slide control If the cutting tool or deflector becomes clogged or stuck always turn off the engine and make sure the cutting tool has stopped before cleaning Grass weeds etc should be cleaned off the cut
16. ansparent fuel pump bulb 6 several times it must be filled with fuel Now start the engine 343BA035 Motormanagement Motor Management Exhaust emissions are controlled by the design of the fundamental engine parameters and components e g carburetion ignition timing and valve or port timing without the addition of any major hardware Adjusting Carburetor Your carburetor is preset at the factory This is the optimum setting under the ba rometric pressure and climatic conditions at the factory and is suitable for most operating sites It ensures that your machine will run smoothly be fuel efficient operate reliably and produce low emissions If the engine runs unsatisfactorily at high altitudes or at sea level Slight readjustment of the carburetor may be necessary Check the air filter and clean it if necessary 343BA047 Check spark arresting screen if fitted and clean it if necessary Mount the cutting tool Nylon line mowing head Trim lines to correct length Lines must extend as far as line limiting blade on the deflector Start the engine and adjust idling speed correctly with the idle speed adjusting screw LA the cutting tool must not rotate 343BA048 Warm up the engine At high altitude Turn the high speed adjusting screw H and low speed adjusting screw L clockwise leaner or as far as stop At sea level Turn the high sp
17. ch wire Connect operator s control grip to the powerhead Throttle cable retainer Fixes the throttle cable on the drive shaft Slide control Starting throttle lock and stop switch Keeps the throttle partially open during starting and switches the engine s ignition off and stops the engine Stop switch Switches the engine s ignition system off and stops the engine x D re O lt ao fa 3 Versions with loop handle and loop handle with standoff lever 1 Loop handle 2 Standoff lever 3 Stop switch 1 4 Throttle trigger interlock 2 5 Starter grip 6 Spark plug boot 7 Carburetor adjusting screws 8 Fuel filler cap 9 Machine support 10 Throttle cable 11 Handle hose 12 Throttle trigger 13 Clamp Harness 2 All versions 14 Fuel pump 15 Air filter cover choke 16 Muffler 17 Deflector version for all cutting tools 18 Skir 19 Line limiting blade 20 Cutting tool STIHL Supercut 20 1 1 Position varies according to country specific requirements 2 Not all markets Definitions 1 Loop handle To hold the brushcutter with both hands Standoff lever Helps keep unit at a safe distance from operator s feet and legs Stop switch Switches the engine s ignition system off an stops the running engine Throttle trigger interlock Must be depressed before the throttle trigger can be activated Starter grip The grip of the pull starter w
18. eed adjusting screw H and low speed adjusting screw L counterclockwise richer or as far as stop 43 Adjusting idle speed It is usually necessary to change the setting of the idle speed adjusting screw LA after every correction to the low speed adjusting screw L Engine stops while idling Turn the idle speed adjusting screw LA clockwise until engine runs smoothly cutting tool must not rotate 44 343BA046 Cutting tool rotates when engine is idling Turn the idle speed adjusting screw LA counterclockwise until cutting tool stops rotating then back off screw about another one half turn from that position Erratic idling behavior poor acceleration Idle setting is too lean Turn the low speed adjusting screw L counterclockwise until engine runs and accelerates smoothly 343BA046 Checking Spark Plug Od 00BA002 KN Wrong fuel mix too much engine oil in the gasoline a dirty air filter and un favorable running conditions mostly at part throttle etc affect the condition of the spark plug These factors cause deposits to form on the insulator nose which may result in trouble in operation If engine is down on power difficult to start or runs poorly at idling speed first check the spark plug Remove spark plug see If engine doesn t start Clean dirty spark plug Check electrode gap A it should be 0 7 0 8 m
19. es Warning Because a brushcutter is a high speed fast cutting power tool special safety precautions must be observed to reduce the risk of personal injury It is important that you read fully understand and observe the following safety precautions and warnings Read the owner s manual and the safety instructions periodically Care less or improper use of any brushcutter may cause serious or fatal injury Have your STIHL dealer show you how to operate your brushcutter Observe all applicable local safety regulations standards and ordinances A Warning The use of any brushcutter may be hazardous If the rotating cutting tool comes in contact with your body it will cut you When it comes in contact with solid foreign objects such as rocks or bits of metal it may fling them directly or by ricochet in the direction of bystanders or the operator Striking such objects could damage the cutting attachment and may cause blades to crack chip or break STIHL does not recommend the use of rigid blades when cutting in stony areas Thrown objects or damaged blades may result in serious or fatal injury to the operator or bystanders 6 A Warning Minors should never be allowed to use a brushcutter Bystanders especially children and animals should not be allowed in the area where a brushcutter is in use Never let the brushcutter run unattended A Warning Do not lend or rent your brushcutter without the ow
20. f but do not remove the screws 1 Pull out the spark arresting screen 2 from underneath the cover 3 in the direction of the arrow see illustration Clean spark arresting screen if necessary If screen is damaged or coked up fit a new one Refit the spark arresting screen Assemble in the reverse sequence Not all models Gearbox Lubrication Zz x O WQ O lt m N Q oO Check grease level regularly about every 50 hours of operation Unscrew the filler plug 1 If no grease can be seen on the insi de of the filler plug screw the tube 2 of STIHL gear lubricant 0781 120 1117 1119 into the filler hole Squeeze grease into the gear housing about 5 10 g 1 4 oz Do not completely fill the gear housing with grease Refit the filler plug and tighten it down firmly Lubricating Flexible Shaft z x rc o k lt L a O oO Check film of lubricant at regular intervals every 50 hours of operation if you use your brushcutter daily or once a year if you use your brushcutter occasionally Mark the end of the gear head on the drive tube Release the clamp screws 1 Pull the gear head 2 off the drive tube 357BA052 KN Pull the flexible shaft 3 out of the drive tube Use STIHL gear grease 0781 120 1109 1110 to coat dry are as of the shaft Do not apply too much grease never pump grease into the drive tube If shaft has turned blue fit a new one
21. from the table according to the cutting tool you intend to use For safety reasons you may only combi ne the cutting tool deflector handle and carrying strap versions shown when you read the table horizontally from left to right Other combinations e g reading the table diagonally are not permitted since there is otherwise a risk of serious injury Warning STIHL brushcutters with a loop handle without standoff lever may be used only with the above mentioned mowing heads with nylon line or plastic blades Other plastic or metal cutting tools may only be used on brushcutters with a bike handle J handle or loop handle with standoff lever in order to minimize the risk of personal injury through contact with the cutting tool Cutting Tool Deflector Handle Carrying Strap Mounting the Bike Handle Mount the bike handle 1 on the Mounting the control handle Securing the throttle cable drive tube 2 30cm 12 A forward of the engine Remove the screw 8 Lay your brushcutter on its back Position the clamp 3 and from the nut 9 with the gear gear facing up support 4 on the drive tube Take both parts out of Push the throttle cable retainers Place the bike handle 1 in the the control handle 13 13 into the holes on the underside support so that the molded handle Push the control
22. handle of the drive tube is on the left looking at handle from onto the bike handle 1 engine throttle trigger 11 must Fit clamp 5 on support point in direction of gear head Insert screws 6 in holes Line up the holes 12 Fit nuts 7 on screws fingertight Fit nut and screw in the Line up the bike handle as required control handle Tighten the screws firmly Tighten the screw firmly 18 Mounting the J Handle Mounting Loop Handle with Standoff Lever Mount the J handle 1 Mount the loop handle 1 with Insert square nuts 3 in the on the drive tube 2 standoff lever 20 cm 8 A forward standoff lever 4 20cm 8 A forward of the of the control handle 2 line up the holes throttle trigger block Position the clamp 3 and support 4 on the drive tube Place J handle 1 in the support handle must point to left looking at handle from engine Place clamp 5 on support Insert screws 6 through the parts and fit the nuts fingertight Locate the plug 8 against the support 4 Line up the J handle as required Tighten the screws firmly 19 Mounting the Loop Handle Version A 02BA011 K 02BA012 K Place the clamp 5 in the loop Mount the loop handle 1 Place the clamp 3 in the loop handle 1 and position them both 20 cm 8 A forward of the handle 1 a
23. hich is the device to start the engine Spark plug boot Connects the spark plug to the ignition wire Carburetor adjusting screws For tuning carburetor 10 11 12 13 14 15 Fuel filler cap For closing the fuel tank Machine support For resting machine on the ground Throttle cable Connect operator s control grip to the powerhead Handle hose For holding machine during starting and cutting work Throttle trigger Controls the speed of the engine Clamp The device to connect the brush cutter to the harness Fuel pump Provides additional fuel feed for a cold start Air filter cover Choke Covers the air filter element Eases engine starting by enriching mixture 16 17 18 19 18 Muffler Attenuates exhaust noises and diverts exhaust gases away from operator Deflector with Skirt The deflector is designed to reduce the risk of injury from foreign objects flung backwards toward the operator by the cutting tool and from contact with the cutting tool Skirt The skirt at the bottom of the deflector must be adjusted as discribed in the chapters on mounting the various cutting tools Line limiting blade Metal blade at the skirt in order to keep the line of the cutting head at the proper length Cutting tool The cutting attachment i e blade made from metal for different purposes special accessory Safety Precautions and Working Techniqu
24. ight shatter and cause serious or fatal injury Resharpen when the tips of the cutting edges 1 have worn down to about 1mm 3 64 A To avoid out of balance Resharpen the cutters 2 uniformly do not alter the contour of the parent blade 3 in any way After resharpening about 5 times have blade checked on STIHL balancer 5910 850 2600 and rebalanced as necessary Operating Instructions Zz x Q ite o lt L fea Q o 1 Z 4 Measurements and angles for Sharpen correctly During break in period resharpening If slightly dull Use flat file 4 0814 212 3310 A factory new machine should not be Leave clearance of 2mm 5 64 B In case of more serious wear or run at high revs full throttle off load for between cutting edge and parent nicks Resharpen with a grinder the first three tank fillings This avoids blade R1 should be 2mm 5 64 File back the cutting edge unnecessary high loads during the Radius R2 is 2 5mm 7 64 and is parallel to the lines E see break in period obtained automatically if you use illustration the specified file and maintain Resharpen frequently take As all moving parts have to bed in a filing angle of 30 C away as little material as during the break in period the Cutting edge D must be exactly possible two or three strokes frictional resistances in the engine in line with center of blade s of the file are usually enough are greater during this period mounti
25. lectronic breakerless 1 84 cu in magneto ignition Bore 34 8 mm 1 36 cu in Spark plug GM AC CSR 45 Stroke 31 8 mm suppressed or NGK BMR 6A 1 25 in Heat range 200 Engine power Electrode gap 0 7 0 8 mm to ISO 8893 0 7 kW 0 95 bhp 0 03 in Max engine speed Speed limited by Spark plug thread M 14x 1 25 control valve 9 5mm Max output 0 37 in long shaft speed tool mounting 7 500 r p m Idle speed 3 100 r p m Model Tool Sound Sound Vibration Vibration pressure power acceleration acceleration level Lpeq level Lweq to to to to ISO 7916 ISO 7916 ISO 7917 ISO 10884 Idle speed Max speed m s m s Handle Handle dB A dB A right left right left FS 447 Mow head 97 108 3 3 3 0 13 3 3 6 FS 442 Metal tool 94 103 3 3 3 0 4 2 3 7 FS 44R Mow head 97 108 41 5 2 13 2 9 5 FS 44 R Metal tool 94 103 4 1 5 2 10 1 9 6 1 Average for idle speed and maximum engine speed with equal periods of exposure 2 Version with bike handle 3 Version with loop handle Version with loop handle with standoff lever 52 Fuel System Carburetor All position diaphragm carburetor with integral fuel pump Air filter Foam element Fuel tank capacity 0 51 1 08 US pt Fuel mixture see chapter Fuel Weight without cutting tool and deflector FS44 with bike handle 5 6 kg 12 3 Ib FS44 with loop handle 5 1 kg 11 2 Ib Special Accessories Cut
26. m about 0 03 readjust if necessary Use only suppressed spark plugs of the approved type Rectify faults which have caused fouling of spark plug Incorrect carburetor setting too much oil in fuel mix dirty air filter unfavorable running conditions e g operating at part load Fit anew spark plug after approx 50 operating hours or earlier if the electrodes are badly eroded Cleaning Air Filter ee Tt 2 a oO st oO Dirty air filters reduce engine power increase fuel consumption and make starting more difficult If there is a noticeable loss of engine power Turn filter cover 1 to CHOKE to prevent dirt falling into the carburetor Take out the screw 2 and pull off the filter cover without turning it ae Take the foam filter element 3 out of the filter housing Wash the element in fresh non flammable cleaning solution e g warm soapy water and dry it off Always replace a damaged filter element 45 Spark Arresting Screen in Muffler N Install foam filter element 3 Fit the filter cover with the choke lever 4 in the closed position line up choke mark on filter cover with K of CHOKE on housing Secure cover with screw 2 46 343BA0 If the engine is low on power check the spark arresting screen inside the muffler Slacken of
27. nd for fueling and move at least 10 feet 3 m from the fueling spot before starting the engine Wipe off any spilled fuel before starting your brushcutter and check for leakage A Warning Check for fuel leakage while refueling and during operation If fuel or oil leakage is found do not start or run the engine until leak is fixed and spilled fuel has been wiped away If this happens change your clothing immediately A Warning Unit vibrations can cause an improperly le tightened fuel cap to i loosen or come off and spill quantities of fuel In order to reduce risk of fuel spillage and fire tighten fuel cap by hand with as much force as possible The screwdriver end of the STIHL combination wrench or other similar tool can be used as an aid for tightening slotted fuel caps Operating instructions A Warning Improper use of any brushcutter can cause serious or fatal personal injury Read understand and follow all safety instructions in your owner s manual before operating these products To reduce the risk of personal injury to the operator from blade contact and thrown objects make sure your unit is equipped with the proper deflector handle and harness for the type of cutting attach ment being used see chart in chapter on Selecting the Cutting Tool Always wear proper eye protection Starting A Warning Your brushcutter is a one person machine Once started it may fling foreign objects f
28. nd position them both against the drive tube 6 control handle 2 against the drive tube 4 Fit the clamp 7 and place standoff lever 4 in position line up the holes Insert screws 8 in holes and screw them into standoff lever Align the loop handle fingertight Lock the nuts and tighten Align the loop handle the screws firmly Tighten the screws firmly Fit the clamp 5 line up the holes Insert screws 6 in holes and screw on the nuts 7 fingertight 20 Mounting the Loop Handle Version B 443BA058 K Mount the loop handle 1 on the drive tube 15cm 6 A forward of the control handle 2 Position clamp 3 against the drive tube and slide it into the loop handle Fit square nut 4 in the loop handle 43BA023 KN Insert the clamp screw 5 from the other side and tighten down securely Adjusting loop handle to most comfortable position Release clamp screw 5 Move the loop handle along the drive tube as required and then tighten the clamp screw 21 Mounting the Deflector Zz x o QO q a R Mounting the deflector Place either deflector 1 for all cutting tools or deflector 2 for mowing heads on the gearhead flange Fit the plate 3 and line it up Insert M5 x 18 screws and tighten down securely 22 357BA008 KN Fitting skirt and blade Slide the lower guide slot of the skirt 4 over the deflector 1 it mus
29. ner s manual Be sure that anyone using your brushcutter understands the information contained in this manual Most of these safety precautions and warnings apply to the use of all STIHL brushcutters Different models may have different parts and controls See the appropriate section of your owner s manual for a description of the controls and function of the parts of your model brushcutter Safe use of a brushcutter involves 1 the operator 2 the brushcutter 3 the use of the brushcutter THE OPERATOR Physical Condition You must be in good physical condition and mental health and not under the influence of any substance drugs alcohol etc which might impair vision dexterity or judgment Do not operate a brushcutter when you are fatigued Be alert if you get tired while operating your brushcutter take a break Tiredness may result in loss of control Working with any brushcutter can be strenuous If you have any condition that might be aggravated by strenuous work check with your doctor before operating a brushcutter A Warning Prolonged use of a brushcutter or other machines exposing the operator to vibrations may produce whitefinger disease Raynaud s phenomenon or carpal tunnel syndrome These con ditions reduce the hand s ability to feel and regulate temperature produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis All factors which cont
30. ng hole The engine develops its maximum power after about 5 to 15 tank fillings During operation After a long period of full throttle operation allow engine to run for a while 49 at idle speed so that the heat in the engine can be dissipated by flow of cooling air This protects engine mounted components ignition carburetor from thermal overload After finishing work Storing for a short period Wait for engine to cool down To avoid condensation fill the fuell tank and keep the unit in a dry place until you need it again Storing for an long period see chapter Storing the Machine 50 Storing the Machine For periods of about 3 months or longer Drain and clean the fuel tank Run engine until carburetor is dry this helps prevent the carburetor diaphragms sticking together Remove clean and inspect the cutting tool Thoroughly clean the machine pay special attention to the cylinder fins and air filter Store the machine in a dry high or locked location out of the reach of children and other unauthorized persons Maintenance Chart Please note that the following maintenance intervals apply for normal operating conditions 3 If your daily working time is longer than normal or cutting conditions are difficult shorten the spe 2 gt sy z cified intervals accordingly 2 58 52 ae f 92 5 3 Z
31. o see how it is balanced In normal working position cutting tool must just touch the ground Tighten the screw firmly 31 Starting Version with Bike Handle 3 2 2 2 Pa S 3 Observe safety precautions see If engine is cold Press transparent fuel pump bulb at chapter Safety Precautions and least five times Working Techniques Turn filter cover 4 clockwise to it must be filled with fuel CHOKE Hold down the throttle trigger interlock 1 and squeeze the throttle trigger 2 If engine is warm Move the slide control 3 to START position Turn filter cover 4 counterclockwi Now release the throttle trigger se to RUN slide control and trigger interlock in that order This is the Also use this setting if engine has been starting throttle position running but is still cold 32 Put the unit on the ground It must rest securely on the engine support and deflector Check that the cutting tool is not touching the ground or any other obstacles Make sure you have a firm footing Hold the unit with you left hand and press it down firmly your thumb should be under the dri ve shaft Do not stand or kneel on the drive shaft 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 starter rope more than 70cm 27 it might break Do not let the starter grip
32. oil mixture see also instruction Fuel Deviations from this recommendation regarding quality and mixing ratio of fuel and oil may require shorter maintenance intervals Limitations This Emission Control Systems Warranty shall not cover any of the following repair or replacement required because of misuse neglect or lack of required maintenance repairs improperly performed or replacements not conforming to STIHL Incorporated specifications that adversely affect performance and or durability and alterations or modifications not recommended or approved in writing by STIHL Incorporated and replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replacement point 55
33. onoxide may be colourless and odourless To reduce the risk of serious or fatal injury from inhaling toxic fumes never run the brushcutter indoors or in poorly ventilated locations A Warning Use of this product can generate dust and fumes containing chemicals known to cause respiratory disease cancer birth defects or other reproductive harm If you are unfamiliar with the risks asso ciated with the particular dust or fume at issue consult your employer govern mental agencies such as OSHA and NIOSH and other sources on hazardous materials California and some other authorities for instance have published lists of substances known to cause cancer reproductive toxicity etc Control dust and fumes at the source where possible In this regard use good work practices and follow the recommen dations of OSHA NIOSH and occupatio nal and trade associations When the inhalation of toxic dust and fumes can not be eliminated the operator and any bystanders should always wear a respi rator approved by NIOSH MSHA for the type of dust and or fumes encountered A Warning The muffler and other parts of the engine e g fins of the cylinder spark plug become hot during operation and remain hot for a while after stopping the engine To reduce risk of burns do not touch the muffler and other parts while they are hot Operate the brushcutter under good visibility and daylight conditions only Work carefully Do no
34. or a great distance lt a 15m 50 ft To reduce the risk of eye and other injury insure that bystanders are at least 50 feet 15 m away Stop the engine and cutting tool immediately if you are approached Start and operate your brushcutter without assistance For specific starting instructions see the appropriate section of your manual Place the brushcutter on firm ground or other solid surface in an open area Maintain a good balance and secure footing A Warning To reduce the risk of injury from loss of control be absolutely sure that the cutting tool is clear of you and all other obstructions and objects including the ground because when the engine starts at starting throttle engine speed will be fast enough for the clutch to engage and turn the cutting tool A Warning When you pull the starter grip don t wrap the starter rope around your hand Do not allow the grip to snap back but guide the starter rope to rewind it properly Failure to follow this procedure may result in injury to hand or fingers and may damage the starter mechanism With the engine running but at idle attach the brushcutter to the spring hook of your harness see appropriate chapter of this manual 10 Working Conditions Operate and start your brushcutter only outdoors in a ventilated area A Warning Your brushcutter produces toxic exhaust fumes as soon as the engine is running These gases e g carbon m
35. or rear that can occur 000BA012 KN when the shaded area of the rotating blade comes in contact with a solid object like a tree rock bush or wall The rapid counterclockwise rotation of the blade may be stopped or slowed and the cutting attachment may be thrown in an area to the right or to the rear This kickout blade thrust may cause loss of control of the brushcutter and may result in serious or fatal injury to the operator or bystanders To reduce the risk of injury extreme caution should be used when cutting with the shaded area of any rigid blade 15 Selecting the Cutting Tool Cutting tools STIHL Supercut 20 2 mowing head STIHL Autocut 20 2 mowing head STIHL Autocut 24 2 mowing head STIHL Autocut 25 2 mowing head STIHL Polymatic 30 2 mowing head STIHL Polycut 20 3 mowing head STIHL Fixed Line head NOOR WD Grass cutting blade 230 4 Grass cutting blade 230 8 Deflectors 10 Deflector for mowing heads 11 Deflector for all cutting tools with 12 Skirt and line limiting blade 13 Deflector for all cutting tools without skirt and line limiting blade Handles 14 Loop handle 15 Loop handle with 16 Standoff lever 17 J handle 18 Bike handle Carrying straps 19 Shoulder strap recommended 20 Shoulder strap 21 Full harness recommended 16 A fully equipped brushcutter comprises among other items Cutting tool Deflector Handle Carrying strap Select the correct combination
36. replaced by STIHL Incorporated free of charge Owner s Warranty Responsibilities As the small off road equipment engine owner you are responsible for the per formance of the required maintenance listed in your owner s manual STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off road equipment engine but STIHL Incorporated cannot deny warranty solely for the lack of receipts or for your failure to ensure the perform ance of all scheduled maintenance Any replacement part or service that is equivalent in performance and durability may be used in non warranty mainten ance or repairs and shall not reduce the warranty obligations of the engine manufacturer As the small off road equipment engine owner you should be aware however that STIHL Incorporated may deny you warranty coverage if your small off road equipment engine or a part has failed due to abuse neglect improper mainten ance or unapproved modifications You are responsible for presenting your small off road equipment engine to a STIHL service center as soon as a problem exists The warranty repairs will be completed in a reasonable amount of time not to exceed 30 days If you have any questions regarding your warranty rights and responsibilities please contact a STIHL customer service representative at 1 800 467 8445 or you can write to STIHL Inc 536 Viking Drive P O Box 2015 Virginia Beach VA 23450 2015
37. ribute to white finger disease are not known but cold weather smoking and diseases or physi cal conditions that affect blood vessels and blood transport as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger disease In order to reduce the risk of whitefinger disease and carpal tunnel syndrome please note the following Most STIHL power tools are available with an anti vibration AV system designed to reduce the transmission of vibrations created by the engine to the operator s hands An AV system is recommended for those persons using power tools ona regular or sustained basis Wear gloves and keep your hands warm Keep the AV system well maintained A brushcutter with loose compo nents or with damaged or worn AV buffers will tend to have higher vibration levels Maintain a firm grip at all times but do not squeeze the handles with constant excessive pressures take frequent breaks All the above mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome Therefore continual and regular users should monitor closely the condition of their hands and fingers If any of the above symptoms appear seek medical advice immediately Proper Clothing Warning Brushcutter operation can cause serious injury to eyes ears and person The deflector provided with your brushcutter may
38. ries A Warning Check condition of cutting tool at regular short intervals If behavior of tool changes check it immediately for tight ness or any signs of cracks in particular Replace damaged or dull cutting tools immediately even if they have only superficial cracks If the blade loosens after being properly tightened the retaining nut may be worn or damaged and should be replaced If the blade continues to loosen see your STIHL dealer Do not attach any blade to a unit without proper installation of all required parts Never use unauthorized parts to secure the blade Failure to use the proper parts may cause the blade to fly off and seriously injure the operator or bystanders A Warning To reduce the risk of fire and burn injuries check fuel filler cap for leaks at regular intervals Use the specified spark plug and make sure it and the ignition lead are always in good condition A Warning Never test the ignition system with ignition wire boot removed from spark plug or with unseated spark plug since uncontained sparking may cause a fire A Warning To reduce the risk of fire and burn injury use only spark plugs authorized by STIHL Always press spark plug boot snugly onto spark plug boot of the proper size Note If boot has detachable SAE adapter nut it must be attached A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combus
39. s non defective STIHL Incorporated will charge you for the cost of the emission test Mechanical diagnostic work will be performed at an authorized STIHL servicing dealer Emission test may be performed either at STIHL Incorporated or at any independent test laboratory Warranty Work STIHL Incorporated shall remedy war ranty defects at any authorized STIHL servicing dealer or warranty station Any such work shall be free of charge to the owner if it is determined that a warranted part is defective Any manufacturer approved or equivalent replacement part may be used for any warranty mainten ance or repairs on emission related parts and must be provided without charge to the owner STIHL Incorporated is liable for damages to other engine components caused by the failure of a warranted part still under warranty The California Air Resources Board s Emission Warranty Parts List specifically defines the emission related warranted parts These warranted parts are Carburetor Choke Cold start enrichment system Intake manifold Air filter Spark plug Magneto or electronic ignition system ignition module Catalytic converter if applicable Fasteners Where to make a claim for Warranty Service Bring the product to any authorized STIHL servicing dealer and present the signed warranty card Maintenance Requirements The maintenance instructions in this manual are based on the application of the recommended 2 stroke fuel
40. sheet supplied with mowing head STIHL Autocut mowing head Nylon cutting cord advances auto matically when tapped against the ground 002BA049 KN STIHL Polycut mowing head Uses either nylon lines or nonrigid plastic blades Important Three rectangular wear limit marks are applied to the base periphery of the Polycut To reduce the risk of serious injury from breakage of the head or blades the Polycut must not be used when it has worn as far as one of these marks It is important to follow the maintenance instructions supplied with the head Using the grass cutting blade All kinds of grass and weeds can be easily cut with the grass cutting blade The brushcutter is swept in an arc similiar to a scythe A Warning To reduce the risk of serious or fatal injury never attempt to cut woody materials HULU CULL a a PLE annum eH UCT LEELA AUT ESOT Haa a Muka LIAL LLU L wG EV Osi iL Sill LUGE WALL MNT ULL VATU The 4 tooth grass cutting blade is intended to cut grass and weeds It has 4 cutting knives with cutting edges on both sides i e front and rear The 8 tooth grass cutting blade is recommended for cutting fern or reed Both blades have to be resharpened when all cutting edges are dull Risk of kickout blade thrust with all rigid cutting blades Warning Kickout blade thrust is the sudden and uncontrolled motion towards the operator s right
41. signed built and equipped to meet the State s stringent anti smog standards In other states new 1997 and later model year small off road equipment engines must be designed built and equipped at the time of sale to meet the U S EPA regulations for small non road engines The equipment engine must be free from defects in materials and workmanship which cause it to fail to conform with U S EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser STIHL Incorporated must warrant the emission control system on your small off road engine for the period of time listed below provided there has been no abuse neglect or improper maintenance of your small off road equipment engine Your emission control system includes parts such as the carburetor and the ignition system Also included may be hoses and connectors and other emission related assemblies 54 Where a warrantable condition exists STIHL Incorporated will repair your small off road equipment engine at no cost to you including diagnosis if the diagnostic work is performed at an authorized dealer parts and labor Manufacturer s Warranty Coverage The small off road equipment engines are warranted for two years in California In other states 1997 and later model year small off road equipment engines are also warranted for two years If any emission related part on your engine is defective the part will be repaired or
42. snap back guide it slowly into the housing so that the starter rope can rewind properly N ise lt Q oO Tt N When engine begins to fire If engine is cold Turn filter cover 4 counterclockwi se until mark on filter cover points to continue cranking until engine runs If engine is warm Continue cranking until engine runs 33 34 357BA035 KN As soon as engine runs If engine is cold Squeeze the throttle trigger 2 warm up engine for brief period at full throttle Release throttle trigger slide control 3 moves to the Run position I and the engine returns to idling speed Turn filter cover to RUN If engine is warm Blip the throttle trigger 2 the slide control 3 moves to the Run position I and the engine returns to idling speed 357BA035 KN Make sure carburetor is correctly adjusted cutting tool must not rotate when engine is idling Your brushcutter is ready for operation To shut down the engine Move slide control 3 to STOP 357BA036 KN At very low outside temperatures Allow engine to warm up As soon as engine runs Warm up engine for about 1 minute at full throttle Release throttle trigger slide control moves to the Run position I and the engine returns to idling speed Turn filter cover to RUN 343BA034 If the engine doesn t start If you
43. t cut any material other than grass brush and wood The cutting tools may be used only for the operations described in your manual 002BA055 KN lt l A e lt ea A e Always hold the brushcutter firmly with both hands Wrap your fingers tightly around the handles keeping the handles cradled between your thumb and forefinger Keep your hands in this position to have your brushcutter under control at all times Make sure your brushcutter handles and grip are in good condition and free of moisture pitch oil or grease A Warning Never attempt to operate any brush cutter with one hand Loss of control of the brushcutter resulting in serious or fatal injury may result To reduce the risk of bodily injury resulting from loss of control and or contact with the cutting tool make sure your unit is equipped with the proper handle and harness for the type of cutting attachment being used see chart in chapter on Selecting the Cutting Tool Special care must be taken in slippery conditions wet ground snow and in difficult overgrown terrain Watch for hidden obstacles such as tree stumps roots and ditches to avoid stumbling 002BA054 KN 002BA025 L Before cutting inspect the area for stones glass pieces of metal trash or other solid objects The cutting attachment could throw objects of this kind To reduce the risk of injury from thrown objects and blade cont
44. t snap into position Push blade 5 into the upper guide on the skirt and line it up with the first hole Fit the screw and tighten it down firmly Mounting the Cutting Tools Lay your brushcutter on its back with the gear head facing up Blocking the output shaft Insert stop pin 1 in the bore 2 at the side of the gear head as far as stop apply slight pressure Rotate output shaft until the stop pin slips into position and blocks the shaft Removing cutting tool mounting hardware Position combination wrench 3 on the mounting nut 4 Release and unscrew the nut clockwise left hand thread 357BA014 KN Remove shipping keeper 5 if fitted Pull the rider plate 6 and thrust washer 7 off the shaft 8 Now fit the cutting tool 23 Zz x ire x e lt L a it ie STIHL Supercut 20 2 Lay your brushcutter on its back with the gear head facing up Screw mowing head counterclock wise onto the output shaft 1 as far as it will go Block the output shaft Tighten down the mowing head securely Important Remove the stop pin Keep instruction sheet for mowing head in a safe place 24 Removing mowing head Block the output shaft unscrew mowing head clockwise Adjusting nylon line Fresh line is advanced auto matically providing at least 6cm 2 4 of line is still projecting from the head Blade on deflector trims
45. th a lower octane rating may result in preignition causing pinging which is accompanied by an increase in engine temperature This in turn increases the risk of the 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 but magnesium castings as well This could cause running problems or even damage the engine For this reason it is essential that you use only name branded fuels Use only STIHL two stroke engine oil or equivalent branded two stroke air cooled engine oils with the classification TC for mixing We recommend STIHL 50 1 two stroke engine oil since it is specially formulated for use in STIHL engines Do not use BIA or TCW two stroke water cooled mix oils Take care when handling gasoline Avoid direct contact with the skin and avoid inhaling fuel vapour The canister should be kept tightly closed in order to avoid any moisture getting into the mixture The fuel tank and the canister in which fuel mix is stored should be cleaned from time to time Fuel mix ages Only mix sufficient fuel for a few days work not to exceed 3 months of storage Store in approved safety fuel canisters only When mixing pour oil into the canister first and then add gasoline Gaso Oil STIHL 50 1 or line equivalent branded TC oils US gal US fl oz 1 2 6
46. the output shaft and tighten it down firmly Fitting nylon line Important Remove the stop pin Refer to instruction sheet supplied with fixed line head Keep instruction sheet for mowing head in a safe place Grass cutting blade 230 Note Remove skirt and blade from deflector before mounting this cutting tool 28 Lay your brushcutter on its back with the gear head facing up Place cutting tool 1 on the thrust plate 2 Cutting edges of blade 230 8 3 must point clockwise Cutting blade 230 4 4 may be fitted either way round z g Oo 3 2 a oO Slip the thrust washer 5 and rider plate 6 over the output shaft 7 Block the output shaft Screw mounting nut 8 counter clockwise on to output shaft and tighten down securely Important Remove the stop pin Releasing mounting nut Block the output shaft and unscrew the mounting nut clockwise If the mounting nut becomes slack due to frequent loosening and retightening fit a new one Fuel This engine is certified to operate on unleaded gasoline and with the mix ratio 50 1 Your two stroke engine requires a mixture of brand name gasoline and quality two stroke engine oil with the classification TC Use regular branded unleaded gasoline with a minimum octane rating of 90 RON U S A Canada pump octane min 89 If the octane number of the regular grade gasoline in your area is lower use premium unleaded fuel Fuel wi
47. the throttle trigger throttle trigger interlock if applicable stop switch cutting tool deflector and harness Arrows on the deflector A and stop B show the correct direction of rotation of the cutting tool The throttle trigger must move freely and always spring back to the idle position The cutting tool must be properly tightened and in safe operating condition Inspect for loose parts nuts screws etc and for cracked bent warped or damaged blades Fueling Your STIHL brushcutter uses an oil gasoline mixture for fuel see the chap ter on Fuel of your owner s manual A Warning Gasoline is an extremely flammable fuel If spilled and ignited by a spark or other ignition source it can cause fire and serious burn injury or property damage Use extreme caution when handling gasoline or fuel mix Do not smoke or bring any fire or flame near the fuel Fueling Instructions Fuel your brushcutter in well ventilated areas outdoors A Warning Gasoline vapor pressure may build up inside the gas tank of a two cycle engine depending on the fuel used the weather conditions and the venting system of the tank In order to reduce the risk of burns and other personal injury from escaping gas vapor and fumes remove the fuel filler cap on your brushcutter carefully so as to allow any pressure build up in the tank to release slowly Never remove fuel filler cap while engine is running Select bare grou
48. tible fumes and cause a fire Keep spark plug clean and make sure ignition lead is in good condition 13 A Warning Do not operate your brushcutter if the muffler is damaged missing or modified An improperly maintained muffler will increase the risk of fire and hearing loss Never touch a hot muffler or burn will result If your muffler was equipped with a spark arresting screen to reduce the risk of fire e g in the USA Canada and Australia never operate your brush cutter if the screen is missing or damaged Do not modify or remove any part of the muffler or spark arresting screen Remember that the risk of forest fires is greater in hot or dry weather Keep cutting tool sharp Tighten all nuts bolts and screws except the carburetor adjustment screws after each use Additionally the daily maintenance schedule for your brushcutter set forth in your STIHL Owner s Manual should be strictly followed For any maintenance please refer to the maintenance chart and to the warranty statement near the end of this manual Store brushcutter in a dry high or locked location out of reach of children Before storing for longer than a few days always empty the fuel tank 14 002BA018 LA USING THE CUTTING TOOLS For an illustration of the various cutting tools and instructions on proper mount ing see the chapter on mounting the cutting tools in your owner s manual Using the mowing heads The STIHL Superc
49. ting Tools 1 STIHL Supercut 20 2 mowing head 4002 710 2162 STIHL Autocut 24 2 mowing head 4002 710 2109 STIHL Autocut 20 2 mowing head 4002 710 2106 STIHL Autocut 25 2 mowing head 4002 710 2108 STIHL Polymatic 30 2 mowing head 4002 710 2120 STIHL Polycut 20 3 mowing head 4002 710 2130 STIHL Fixed Line Head 4001 713 2102 Grass cutting blade 230 4 4001 713 3801 Grass cutting blade 230 8 4001 713 3803 Not approved for FS 44 with loop handle Nylon line for cutting heads 2 0mm 0 08 diameter green 15m 50ft 0000 930 2217 for 4 2 4mm 0 095 diameter orange 15m 50ft 0000 930 2243 for 1 to 8 2 7mm 0 105 diameter red 10 7m 35ft 0000 930 2218 for 7 and 8 Thermoplastic blades for 7 Pack of 12 4111 007 1001 Transport guard for 9 and 10 4119 790 3906 Other special accessories Shoulder strap Full harness Goggles STIHL gear grease 80 g 3 oz tube 0781 120 1109 225 g 8 oz tube 0781 120 1110 STIHL gear lubricant 80 g 3 oz tube 0781 120 1117 225 g 8 oz tube 0781 120 1119 53 STIHL Incorporated Federal and California Emission Control Warranty Statement Your Warranty Rights and Obligations The U S Environmental Protection Agency EPA the California Air Resources Board CARB and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your model year 2000 and later equip ment type engine In California new small off road engines must be de
50. ting tool at regular intervals A Warning During cutting check the tightness and the condition of the cutting tool at regular intervals If the behavior of the tool changes stop the engine im mediately and check the nut securing the tool for tightness and the cutting tool for cracks and damage Replace cracked bent warped damaged or dull cutting tools immediately Such tools may shatter at high speed and cause serious or fatal injury 12 A Warning A loose blade may cause the blade to vibrate crack break or come off the brushcutter which may result in serious or fatal injury Make sure that the blade is properly tightened Use the wrench supplied or one of sufficient length to obtain the proper torque If the blade loosens after being properly tightened stop work immediately The retaining nut may be worn or damaged and should be replaced Never use unauthorized parts to secure the blade If the blade continues to loosen see your STIHL dealer Never use a brushcutter with a loose blade A Warning Keep hands and feet away from cutting tool Never touch a rotating cutting tool with your hand or any part of your body It continues to rotate for a short period after the throttle trigger is released flywheel effect Important adjustments A Warning To reduce the risk of personal injury from loss of control or contact with the running cutting tool do not use a cutting tool with incorrect idle adjus
51. tment At correct idle speed the cutting tool should not move For directions on how to adjust idle speed see the appropriate section of your owner s manual If you cannot set the correct idle speed have your STIHL dealer check your brushcutter and make proper adjustments and repairs MAINTENANCE REPAIR AND STORING Maintenance replacement or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual However if you claim warranty for a component which has not been serviced or maintained pro perly or if nonapproved replacement parts were used STIHL may deny warranty Use only identical STIHL replacement parts for maintenance and repair Use of non STIHL parts may cause serious or fatal injury Follow the maintenance and repair instructions in the appropriate section of your owner s manual Please refer to the maintenance chart at the last pages of this manual A Warning Always stop the engine and make sure that the cutting tool is stopped before doing any maintenance or repair work or cleaning the brushcutter Do not attempt any maintenance or repair work not described in your owner s manual Have such work performed at your STIHL service shop only A Warning Never repair damaged cutting attach ments by welding straightening or modifying the shape This may cause parts of the cutting tool to come off and result in serious or fatal inju
52. toed safety boots are recommended Good footing is most important in brushcutter Wear an approved safety hard hat to reduce the risk of injury to your head when there is a danger of head injuries S Z THE BRUSHCUTTER For illustrations and definitions of the brushcutter parts see the chapter on Parts and Controls A Warning Never modify a brushcutter in any way Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL brushcutter models are authorized Although certain unauthorized attachments are useable for the STIHL brushcutter their use may in fact be extremely dangerous THE USE OF THE BRUSHCUTTER Transporting the brushcutter A Warning Always turn off the engine and make sure the cutting attachment has stop ped before putting a brushcutter down When transporting your brushcutter in a vehicle properly secure it to prevent turnover fuel spillage and damage to the brushcutter Keep metal cutting tools covered with the transport guard optional accessory o is lt x a fo 000BA007 Preparation for the use of the brushcutter Adjust carrying harness and hand grip to suit your size before starting work The machine should be properly balanced as specified in your owner s manual for proper control and less fatique in operation Always check your brushcutter for proper condition and operation before starting particularly
53. ut Autocut Polymatic and Polycut mowing heads produce a clean and tidy finish They are to be used only on brushcut ters equipped with a limiter blade in the deflector in order to keep the line at the proper length see Parts and Controls chapter of this manual 14 AUA OO o Lal WOLU ELC Lu amunta tuutuu uun g ALUL Mat U U UT MAAUA LUCU EL LLECUN tEUR TL A O ED HNT UULU ENEL Kattel LU PULLU LLUN AULE tutil HELL UEC ULLAL HLH ULL WELLL WELLL ALELA ALLEN Altlllli HNL ulls itli og p WS If the lawn edges are planted with trees or bordered by a fence etc it is best to use a nylon line head It achieves a softer cut with less risk of damaging tree bark etc than with the polymer blades However the polymer bladed STIHL Polycut produces a better cut if there are no plants along the edge of the lawn Sharpening is not necessary and worn cutting blades are easily replaced A Warning To reduce the risk of serious injury never use wire or metal reinforced line or other material in place of the nylon cutting lines Pieces of wire could break off and be thrown at high speed toward the operator or bystanders STIHL Supercut mowing head Fresh line is advanced automatically Frayed line is replaced by a simple adjustment see instruction sheet supplied with mowing head STIHL Polymatic mowing head Frayed line is replaced by a simple adjustment see instruction
54. z fF eB 5 a as g 35 E g 85 83 52 z EJ 8 8 Visual inspection condition leaks Xx xX Complete machine P Clean x Throttle trigger stop switch Check operation x x 32 41 lean x x 4 Air filter 2 Replace x 45 Check x 30 Filter in fuel tank Replace x 30 Fuel tank Clean x 29 Check idle adjustment Carburetor cutting tool must not turn x x 43 44 Readjust idle x 43 44 Spark plug Readjust electrode gap x 44 Inspect x Cooling inlets p Clean x Inspect x x 46 Spark arresting screen in muffler p Clean or replace x x 46 All accessible screws and nuts not adjusting screws Retighten x Visual inspection x x 23 28 Cutting tool Replace x x 23 28 Sharpen metal cutting tools 48 49 Check tightness of cutting tool x x 23 28 Inspect x 47 Flexible shaft ps Lubricate x 47 The user of the brushcutter may carry out only the maintenance operations described in this manual Other repair work may be performed only by an aut horized STIHL Service Shop Warranty claims following repairs can be accepted only if the repair has been performed by an authorized STIHL Service Shop using original STIHL spare parts Original STIHL parts can be identified by the STIHL part number the oO logo and the STIHL parts symbol amp 7 The symbol may appear alone on small parts 51 Specifications Engine Single cylinder two stroke engine Ignition System Type Displacement 30 2 cm E
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