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STIH)

Technical Information

TI_08_2005_11_01_02.fm

englisch / English

New STIHL BR 500, BR 550 and BR 600 backpack blowers – Series 4282

Contents

08.2005

Содержание 4282 Series

Страница 1: ..._08_2005_11_01_02 fm englisch English New STIHL BR 500 BR 550 and BR 600 backpack blowers Series 4282 Contents 1 Technical description 2 Specifications 3 Accessories 4 Service accessories and special...

Страница 2: ...g elements required for starting Another innovation is the electrostatic arrester in the blowing system that protects the user from electrostatic shock The devices are equipped with an adjustable carr...

Страница 3: ...gger can be locked at three levels 1 3 gas 2 3 gas and full throttle To release the locked position set the setting lever to 1 3 Simplified starting All operating elements for starting are on a centra...

Страница 4: ...tion Unlike a conventional four stroke engine the 4 MIX engine does not have any supply of oil in the crankcase The engine is lubricated entirely with a mixture of petrol and engine oil This design yi...

Страница 5: ...lf of crankcase have been combined into a single unit The crankcase is horizontally split along the crankshaft 1 5 2 Engine control Overhead valves OHV one exhaust valve 1 and one inlet valve 2 Valve...

Страница 6: ...ir fuel oil mixture is drawn through the bypass port 2 valve train 3 and timing gear 4 into the crankcase 5 The oil contained in this mixture lubricates the crankgear timing gear valve train and cylin...

Страница 7: ...position diaphragm carburetor with independent idle The range of the high speed adjusting screw H and the low speed adjusting screw L is limited by limiter caps approx 3 4 turn This limitation ensure...

Страница 8: ...flow with nozzle 810 m h 900 m h 1 210 m h Air velocity 81m s 89 m s 90 m s Sound pressure level Lpeq according to EN ISO 11201 1 86 dB A 92 dB A 96 dB A Sound power level Lweq according to ISO 37441...

Страница 9: ...se Grease 225 g tube 0781 120 1111 Oil seals oil pump drive sprocket bearings chain tensioner Bearing and sliding surfaces for throttle trigger brake lever and trigger interlock STIHL special lubrican...

Страница 10: ...80 890 2700 can cause damage to the piston and crankgear with the 4282 In the future stop screw 4180 890 2700 will be replaced by stop screw 4282 890 2700 Stop screw 4282 890 2700 can also be used for...

Страница 11: ...Limiter cap for low speed adjusting screw 2 High speed adjusting screw with sealing ring 3 Limiter cap for high speed adjusting screw 4 Stop 5 Idle speed adjusting screw 6 The limiter caps are fitted...

Страница 12: ...eed adjusting screw LA 4 Set the speed to 2 500 rpm with low speed adjusting screw L 5 Set the maximum speed with the high speed adjusting screw H BR 500 5 500 rpm BR 550 6 100 rpm BR 600 7 200 rpm If...

Страница 13: ...n spring 3 When opening the throttle shutter fuel is also sent through the main nozzle into the the air cone Venturi valve providing fast and spontaneous acceleration 5 4 Valve clearance The valve cle...

Страница 14: ...troke principle Top dead centre valve overlap Cam 1 points upwards The rocker arms 2 and valve stems 3 move up and down see arrows above when the crankshaft is turned back and forth a few degrees This...

Страница 15: ...he ignition coil Rocker arms and valve stems do not move and the piston is now in the top dead centre for ignition Turn the crankshaft back anticlockwise approx 1 4 turn and then slowly turn it clockw...

Страница 16: ...ed through Rotate the crankshaft twice until the tip of the flywheel is flush with the ignition coil Check the valve clearance again and re adjust if necessary 5 4 6 Assembly Use the gaskets in kit 42...

Страница 17: ...ground terminal 2 to the muffler Set the knob 3 for the spark gap to approx 2 mm While using the ZAT 3 hold it only by the handle 4 or position it in a safe place Fingers and other body parts must be...

Страница 18: ...tube 2 and lock the buttons 4 Run the arrester 1 through the sliding ring 5 With its wide lip facing left shove the sliding ring 5 onto the blower tube end section 2 Run the arrester 1 through the ho...

Страница 19: ...ated hose 7 Hook the discharge wire hook 1 in the loop 10 Shove the pleated hose 7 with the hose clip 9 in the shown position over the manifold 11 Tighten down the screw 12 Shove nozzle 13 depending o...

Страница 20: ...d The throttle cable may only be adjusted when the blower is completely assembled Pull the throttle trigger all the way back Carefully turn the screw in the throttle trigger until it starts to encount...

Страница 21: ...and pick up body Replace the pick up body Installation Do not confuse the hose for the fuel return 2 and suction hose 3 The suction hose 3 has a larger inner diameter and is connected to the hose for...

Страница 22: ...for leaks trial run 40 6 Cylinder piston pressure test 7 Ignition system contact 15 8 Fuel supply tank vent test run 15 9 Manifold or flange pressure test 10 10 Carburetor testing 30 11 Blower tube an...