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Husqvarna 131RB, Руководство по ремонту

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Vibration levels

1

Unit

967 84 33-xx

967 84 32-xx

Equivalent vibration level (ahv, eq), equipped with grass

blade, front/back handle

m/s

2

4.58/2.58

5.42/2.89

Equivalent vibration level (ahv, eq) equipped with trimmer

head, front/back handle

m/s

2

6.58/6.86

2.72/3.94

Noise emissions

2

Sound power level, guaranteed (L

WA

)

dB(A)

115

115

Sound power level, measured

dB(A)

111,9

111,9

Sound levels

3

Sound pressure level at operator's ear, equipped with

grass blade

dB(A)

92,4

92,4

Sound pressure level at operator's ear, equipped with

trimmer head

dB(A)

93,6

93,6

Product dimensions
Weight (excluding cutting equipment)

kg

10,2

10,2

1

Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1.5 m/s

2

.

2

Noise emissions in the environment measured as sound power (L

WA

) in conformity with EC directive 2000/14/

EC. Reported sound power level for the machine has been measured with the original cutting attachment that

gives the highest level. The difference between guaranteed and measured sound power is that the guaranteed

sound power also includes dispersion in the measurement result and the variations between different machines

of the same model according to Directive 2000/14/EC.

3

Reported data for equivalent sound pressure level for the machine has a typical statistical dispersion (standard

deviation) of 2.5 dB (A).

627 - 002 - 23.04.2018

Technical data - 13

Содержание 131RB

Страница 1: ...Workshop manual 131RB English 627 002 23 04 2018 ...

Страница 2: ...67 84 32 xx 16 6 Servicing tools 6 1 Servicing tools for 967 84 33 xx and 967 84 32 xx 18 7 Function overview 7 1 Type plate Product serial number 20 7 2 Engine 20 7 3 Fuel 20 7 4 Cutting equipment 21 7 5 To sharpen grass cutters and grass blades 22 8 Repair instructions 8 1 Product overview for repair instructions 23 8 2 To clean and examine the product parts 23 8 3 Starter 24 8 4 Ignition system...

Страница 3: ...tand the manual 1 3 Revisions Changes to the product can cause changes to the maintenance work and spare parts Separate information is sent out for each change Read the manual together with all received information about changes to maintenance and spare parts for the product 1 4 Safety WARNING All personnel that repair or do servicing on the product must read and understand the safety instructions...

Страница 4: ...oduct can result in permanent hearing loss 2 4 Symbols on the product WARNING This product is dangerous Injury or death can occur to the operator or bystanders if the product is not used carefully and correctly To prevent injury to the operator or bystanders read and obey all safety instructions in the operator s manual Please read the operator s manual carefully and make sure that you understand ...

Страница 5: ...oles in the drive disc aligns with the related hole in the gear housing 4 Put the locking pin C in the hole to lock the shaft 5 Put the blade D support flange G and support cup F on the output shaft 6 Put the cup washer F on the output shaft with the not flat side against the blade 7 Attach the nut E Hold the shaft of the wrench near the blade guard Turn the wrench in the opposite direction to tig...

Страница 6: ...rectly below the stopper I you can hear a click which means the stopper locks the liner 1 If you cannot lock the liner E into position pull it out 2 Turn the flexible shaft a small distance and try to lock the liner E again 7 After you lock the liner E into position pull on the liner to make sure the stopper works correctly 3 2 Function test on the model 967 84 33 xx 3 2 1 To examine before start ...

Страница 7: ...n the cord is fully extended 6 Set the choke control to the run position then pull the start rope until the engine starts 7 Pull the throttle trigger lightly and run at low speed for 60 seconds WARNING Do not touch the cover The cover can burn your skin and cause electrical shock if the spark plug cap is damaged Do not use a product with damaged spark plug cap 3 2 3 To start a warm engine 1 Set th...

Страница 8: ...ge 10 times 4 Set the choke control in the choke position 5 Hold the body of the product to the ground with the left hand Pull out the cord slowly with your right hand until you feel some resistance Pull the cord quickly with force Keep doing it until you hear the engine start WARNING Use the starter rope handle Do not twist the starter rope around your hand CAUTION Do not pull out all the starter...

Страница 9: ...ir purge 10 times The bulb must not be fully filled 3 Set the choke control to the run position 4 Pull the cord quickly and powerfully Keep doing it until the engine starts 3 3 4 To stop Push the stop switch to stop the engine 627 002 23 04 2018 Prepare and do servicing on the product 9 ...

Страница 10: ...ot damaged Make sure the blade is installed correctly in the center position Examine the trimmer head Make sure that the idle speed functions correctly Examine the locknut Do a check of fuel leaks Examine the transport guard Examine the starter rope handle and the starter rope Make sure that the bevel gear grease is sufficient Clean the external part and the adjacent areas of the carburetor Clean ...

Страница 11: ...del Compression ratio Spark plug Electrode gap mm inch Ignition system 967 84 32 xx 967 84 30 xx 8 5 1 NGK BPMR7A 0 6 0 02 FENGLONG CDi 967 84 33 xx 967 84 31 xx 8 5 1 NGK BPMR7A 0 6 0 02 FENGLONG CDi Model Air gap mm inch Pre ignition angle max output idle Air filter type Carburetor type 967 84 31 xx 967 84 32 xx 967 84 30 xx 0 34 0 01 27 22 Dry sponge RuiXing SK C33E SS 967 84 33 xx 0 34 0 01 27...

Страница 12: ... ratio Control disc drive mm inch Shaft diameter Ømm Øinch 967 84 31 xx 967 84 30 xx 30 14 19 25 4 1 28 1 10 967 84 32 xx 967 84 33 xx 30 14 19 25 4 1 26 1 02 KG LBS Model Drive axle diameter Ømm Øinch Weight without fuel kg lbs Volume fuel tank Litre US pint 967 84 31 xx 967 84 30 xx 8 0 31 8 4 18 5 0 9 1 90 967 84 32 xx 8 0 31 10 1 22 3 0 9 1 90 967 84 33 xx 8 0 31 10 5 23 2 1 1 2 32 12 Technica...

Страница 13: ...uipment kg 10 2 10 2 1 Reported data for equivalent vibration level has a typical statistical dispersion standard deviation of 1 5 m s2 2 Noise emissions in the environment measured as sound power LWA in conformity with EC directive 2000 14 EC Reported sound power level for the machine has been measured with the original cutting attachment that gives the highest level The difference between guaran...

Страница 14: ...1 5 2 5 Nm 4 mm 6 8 Nm 3 5 Nm 0 6 1 2 Nm 4 mm 4 6 Nm 4 mm 4 6 Nm 13 mm 18 20 Nm 17 mm 18 20 Nm 5 mm 6 8 Nm 5 mm 8 10 Nm 10 mm 7 9 Nm 10 mm 7 9 Nm 10 mm 7 9 Nm 4 mm 6 8 Nm 4 mm 6 8 Nm 19 mm 18 20 Nm 4 mm 6 8 Nm 4 mm 3 5 Nm 4 mm 4 6 Nm 17 mm 18 20 Nm 4 mm 3 5 Nm 3 5 Nm 14 Servicing data 627 002 23 04 2018 ...

Страница 15: ...0 8 1 5 Nm 5 mm 4 6 Nm 0 6 1 Nm 1 5 2 5 Nm 0 6 1 Nm 4 mm 1 5 2 5 Nm 4 mm 3 5 Nm 19 mm 18 20 Nm 5 mm 3 5 Nm 5 mm 6 8 Nm 1 2 2 Nm 1 2 2 Nm 2 5 3 5 Nm 1 2 2 Nm 627 002 23 04 2018 Servicing data 15 ...

Страница 16: ...Nm 4 mm 6 8 Nm 3 5 Nm 0 6 1 2 Nm 4 mm 4 6 Nm 13 mm 18 20 Nm 17 mm 18 20 Nm 5 mm 6 8 Nm 5 mm 8 10 Nm 10 mm 7 9 Nm 10 mm 7 9 Nm 10 mm 7 9 Nm 4 mm 6 8 Nm 4 mm 6 8 Nm 19 mm 18 20 Nm 4 mm 6 8 Nm 4 mm 3 5 Nm 4 mm 4 6 Nm 17 mm 18 20 Nm 4 mm 3 5 Nm 4 mm 4 6 Nm 3 5 Nm 16 Servicing data 627 002 23 04 2018 ...

Страница 17: ...0 8 1 5 Nm 5 mm 4 6 Nm 0 6 1 Nm 1 5 2 5 Nm 0 6 1 Nm 4 mm 1 5 2 5 Nm 4 mm 3 5 Nm 19 mm 18 20 Nm 5 mm 3 5 Nm 5 mm 6 8 Nm 1 2 2 Nm 1 2 2 Nm 1 2 2 Nm 627 002 23 04 2018 Servicing data 17 ...

Страница 18: ...6 Servicing tools 6 1 Servicing tools for 967 84 33 xx and 967 84 32 xx 11 9 3 12 13 14 10 1 2 4 5 6 7 8 15 16 18 Servicing tools 627 002 23 04 2018 ...

Страница 19: ... the fuel filter 502 50 83 01 10 Pin To lock the angle gear 502 02 61 02 11 Carburetor adjustment screwdriver Adjusting the carburetor settings 501 60 02 03 12 Tachometer Checking engine rpm 502 71 14 01 13 Grease Greasing the parts in the angle gear 503 97 64 01 14 Allen key 4 mm 502 50 18 01 14 Allen key 5 mm 502 50 64 01 15 Air gap tool 0 3 mm Adjusting ignition module 502 51 34 02 16 Drift Dis...

Страница 20: ... unleaded gasoline with a minimum octane number of 90 RON 87 AKI and with less than 10 ethanol concentration E10 Use gasoline with a higher octane number if you frequently use the product at continuously high engine speed 7 3 3 Two cycle engine oil Use only the two cycle engine oil of high quality especially HUSQVARNA two cycle oil Use only the oil of an air cooled engine Mixture ratio 1 40 2 5 Oi...

Страница 21: ...chments Smaller machines requires small trimmer heads and vice versa The length of the trimmer line is important A longer trimmer line requires greater engine power than a shorter trimmer line of the same diameter Make sure that the cutter on the trimmer guard is intact This cuts the trimmer line to the correct length Soak the trimmer line in water for a couple of days before use to increase the l...

Страница 22: ...e risk of blade thrust increases When a blade thrust occurs there is a risk that the product or the operator moves out of position A blade that moves can hit bystanders and there is a risk of injuries If a blade is bent has cracks is broken or damaged discard the blade Use a sharp blade The risk of blade thrust increases when a blade is not sharp 7 5 To sharpen grass cutters and grass blades 1 Sha...

Страница 23: ...Handle 8 Centrifugal clutch 9 Bevel gear 10 Cylinder and piston 11 Crankshaft and crankcase 12 Muffler 13 Harness frame 8 2 To clean and examine the product parts Clean and examine all parts fully You find more instructions in the chapter for each part if special tools or procedures are necessary Replace damaged or defective parts Always use original spare parts 627 002 23 04 2018 Repair instructi...

Страница 24: ...ews F and the cylinder cover Remove the screws G Remove the screws H Remove the engine from the support plate on the harness frame H G F 4 Remove the starter assembly I and the gasket J I J 5 Pull out the starter rope approximately 30 cm Slow the starter pulley with your thumb Put the starter rope in the groove in the starter pulley Let the starter pulley rotate rearward until the spring tension s...

Страница 25: ... prevent injury to the eyes if the recoil spring ejects 1 Remove the screw A the spark plug cap B the spark plug cable C and the spark plug Remove the screw D from the cylinder cover E A B D C E 2 Remove the screws F and the cylinder cover Remove the screws G and H Remove the starter J the bracket I the gasket K and the nuts L G F I J K L H 3 Pull out the starter rope approximately 30 cm Slow the ...

Страница 26: ...r housing 3 Move your thumb around the edge of the starter housing and push down the recoil spring turn after turn 8 3 4 To replace the starter rope in the starter pulley 1 Pull the starter rope through the hole in the starter pulley and tie a knot 2 Make sure that the knot is as small as possible and enters the groove on the starter pulley 3 Wind the cord 3 turns counterclockwise around the start...

Страница 27: ...arter pulley a minimum of a half revolution more 7 Attach the gasket J and the starter assembly I I J 8 Put the engine on the support plate on the harness frame Attach the screws H and the screws G Attach the cylinder cover and the screws F H G F 9 Attach the screw D to the cylinder cover E Attach the spark plug cable C Attach the spark plug cap B and the screw A Tighten all screws to the correct ...

Страница 28: ...and the bracket I Attach the nuts L to the screws G and tighten Put the cylinder cover in the correct position and attach the screws F to the starter housing and cylinder cover Tighten the screws to the correct torque Refer to Servicing data for the model 967 84 32 xx on page 16 G F I J K L H 8 Attach the screw D to the cylinder cover E Attach the spark plug cable C Attach the spark plug cap B and...

Страница 29: ... ignition system 1 Pull up the knob and remove the shaft 2 Remove the spark plug cover 3 Remove the cylinder cover 4 Remove the air filter cover only on the model 967 84 32 xx 5 Disconnect the throttle wire from the carburetor a For the model 967 84 33 xx Open the holder and disconnect the throttle wire from the carburetor connection b For the model 967 84 32 xx Remove the cap and disconnect the t...

Страница 30: ... 84 32 xx Remove the 2 screws A and 2 washers Remove the 4 screws B and pull out the clutch drum assembly C B C A 8 Remove the 2 screws D the cables E the ignition module F and the 2 washers G D E F G 9 Remove the 2 screws and the 2 washers that hold the centrifugal clutch Lift off the clutch Remove the 2 washers between the flywheel and the centrifugal clutch 30 Repair instructions 627 002 23 04 ...

Страница 31: ...ake sure that the key is not damaged Attach the flywheel and the centrifugal clutch with the spacers and screws as shown in the illustration Note Turn the clutch until you can see the arrows that show the turning direction 2 Assemble the cables E to the ignition module Use the 2 screws D and the 2 washers G to assemble the ignition module on the frame D E F G 3 Use a feeler gauge to make sure the ...

Страница 32: ...the model 967 84 32 xx Attach the clutch drum assembly C with the 4 screws B Attach the 2 screws A and the 2 washers A B C 5 Connect the cables 6 Assemble the throttle wire a For the model 967 84 33 xx Connect the throttle wire to the carburetor connection and close the holder 32 Repair instructions 627 002 23 04 2018 ...

Страница 33: ...ove the spark plug and clean it from particles with a steel brush 3 Examine the spark plug If the electrodes are worn more than 50 replace the spark plug Make sure that the electrode gap is 0 6 mm Adjust the space with the side electrode 4 Ground the spark plug on the cylinder and pull tightly on the start handle 5 If no spark occurs replace the spark plug with a test spark plug see Servicing data...

Страница 34: ...spark plug cover If it is necessary lubricate the hole in the spark plug cover 9 If no spark occurs examine the other cables for unsatisfactory connections dirt corrosion cable breakage and damaged insulation If no spark occurs replace the ignition module Note Use an Ohmmeter to examine if a cable is defective 8 5 Handle and throttle trigger 8 5 1 To disassemble the handle 1 Remove the 7 screws an...

Страница 35: ...k cable G and red cable F in the cable retainer K Install the cable retainer on the left handle half Assemble the stop switch H on the throttle H G F K 2 Attach the connection plate J and the screw I below the stop switch H Use the correct torque see Servicing data for the model 967 84 33 xx on page 14 I J H 3 Attach the throttle wire E in the throttle trigger A Put the spring B into the hole L in...

Страница 36: ...ervicing data for the model 967 84 33 xx on page 14 8 6 Air filter 8 6 1 To disassemble the air filter on 967 84 33 xx 1 Turn the engine around its axle to get access to the air filter 2 Remove the screws A that hold the air filter cover B 3 Remove the air filter C 4 Remove the air filter net D 5 Remove the air filter holder E if it is dirty or damaged A B C D E 8 6 2 To disassemble the air filter...

Страница 37: ... satisfactorily 1 Empty the fuel tank 2 Remove the air filter cover 3 Remove the transparent fuel hose from the carburetor 4 Connect the fuel hose to a pressure tester Refer to Servicing data for the model 967 84 33 xx on page 14 5 Examine the hose bushings in the fuel tank for leaks 6 Put your thumb on the hole in the fuel tank cap 7 Pump up a vacuum of 0 5 bar in the fuel tank 8 Remove your thum...

Страница 38: ...er cannot be cleaned replace the fuel filter 3 Examine the fuel hose for cracks and leaks Replace the fuel hose if it is damaged 8 8 3 To attach the fuel filter 1 Attach the fuel filter to the fuel hose 2 Make sure that you put the fuel filter as high up into the fuel hose as possible 3 Tighten the hose clamp Make sure that the filter cannot move off the tube 8 9 Carburetor on 967 84 33 xx 8 9 1 T...

Страница 39: ... F 4 Pull out the carburetor 5 Loosen the top cap H Remove the piston valve I the throttle wire J the spring K and the needle valve L H L I K J 6 Remove the screws M Remove the float chamber housing N Remove the float O M N O 627 002 23 04 2018 Repair instructions 39 ...

Страница 40: ...Remove the fuel cock AB and the plate AC Remove the gasket AD and the packing AE Remove the screw AF Remove the washer AG the sleeve AH the fuel hose AI and gasket AJ V X Y Z AA AB AD AE AF AG AH AI AJ AC 8 9 2 To clean and examine the carburetor 1 Examine the wear to the lever arm and the wear of the needle valve Replace damaged parts 2 Examine the other parts of the carburetor Replace damaged pa...

Страница 41: ... Throttle wire K Spring L Needle valve M Screws N Float chamber housing O Float P Gasket Q Screw R Lever S Axle T Needle valve U Main nozzle V Idle mixture screw X Nut Y Choke plate Z Choke lever AA Screws AB Fuel cock AC Plate AD Gasket AE Packing AF Screw AG Washer AH Sleeve AI Fuel hose AJ Gasket 627 002 23 04 2018 Repair instructions 41 ...

Страница 42: ... the bellows of the fuel pump Fill all the pipes with fuel This pushes out all the bubbles that cause blockages in the pipes 7 Remove the 2 screws A and lift off the throttle mechanism Loosen the valve stop screw B Make sure that the sealing ring on the connection flange is not damaged A A B 8 Remove the 4 screws A Remove the bellows of the fuel pump B the valve housing C and the control diaphragm...

Страница 43: ...e lever arm for wear e Replace damaged parts with new parts 13 Push out the seat of the needle valve for replacement Use a correct punch Ø 4 5 mm A B Note Replace the seat needle valve and lever arm at the same time The seat of the needle valve must be pressed in level with the carburetor housing Use a vise with soft jaw guards to prevent damage to the seat of the needle valve 14 Assemble the part...

Страница 44: ...buretor See Overview of the carburetor on 967 84 32 xx on page 44 for an overview of how the parts of the carburetor connects 1 Assemble the carburetor in the opposite sequence to how it was disassembled Make sure that the sealing ring has its wide edge against the carburetor housing Make sure that the screen is clean and not damaged 2 Do a pressure test of the carburetor a Make sure that the carb...

Страница 45: ...tance piece if it is damaged 4 Make sure that the sealing ring A is attached correctly on the carburetor before the carburetor is attached on the engine The wide edge on the ring must be nearest to the carburetor housing A 5 Connect the fuel hoses and make sure that they are attached correctly Hold the air filter in position and put the carburetor screws through the air filter holder and carbureto...

Страница 46: ...iston 4 Remove the 2 screws that hold the centrifugal clutch Remove the clutch Remove the flat washers that are behind the clutch shoes 8 11 2 To clean and examine the clutch 1 Remove the clutch parts and examine for damage 2 Examine the spring and outer edge for wear and damage The thickness of the outer edge must be minimum 1 0 mm at the most worn point 3 Replace damaged parts 46 Repair instruct...

Страница 47: ... flywheel See the turn arrows on the clutch shoes 2 Attach the clutch drum assembly 3 Remove the piston stop 4 Pull up the knob and attach the shaft 8 11 4 To disassemble the clutch drum 1 Pull up the knob and release the shaft 2 Remove the 4 screws Remove the clutch drum assembly 627 002 23 04 2018 Repair instructions 47 ...

Страница 48: ...Use pliers to remove the large snap ring Remove the bearing 8 11 5 To assemble the clutch drum 1 Attach the bearing Attach the large snap ring 2 Attach the clutch drum Attach the small snap ring 3 Attach the clutch drum assembly 48 Repair instructions 627 002 23 04 2018 ...

Страница 49: ... B to lock the axle Remove the protective plate C Remove the screw D the screws E and the bracket F Remove the screw G and the bracket H Remove the screw I and pull out the gear housing J D E F H G I A J B C Y 2 Remove the bushing K Remove the snap ring L with pliers Remove the snap ring M with pliers Remove the grease plug N K L N M 627 002 23 04 2018 Repair instructions 49 ...

Страница 50: ...nd Q remove the snap ring P from the input shaft S U T R S O Q P V X P 8 12 2 To assemble the bevel gear 1 Put the cogwheel V on the output shaft U Attach the 2 bearings T and X Increase the temperature of the gear housing to approximately 140 C with a hot air gun Put the output shaft into the gear housing J Make sure that the bearings are in their correct positions If it is necessary use a suffic...

Страница 51: ...ch the bracket F and tighten the screw E Tighten the screw D Attach the protective plate C Remove the rod from the hole B to unlock the axle Attach the support flange Y Attach the trimmer head A D E F H G I A J B C Y 8 13 Cylinder and piston 8 13 1 To get access to the cylinder and piston 1 Remove the shaft 2 Remove the spark plug cover and the spark plug 3 Remove the cylinder cover 4 Remove the s...

Страница 52: ...arbon particles from the top of the piston from the combustion chamber of the cylinder and from the exhaust port of the cylinder CAUTION Clean carefully to not cause damage to the soft metal parts 2 Clean all the components with water 3 Examine the components for damage and wear a Examine the piston and cylinder for damage and wear Refer to Faults and causes on page 53 b Examine the piston rings f...

Страница 53: ...8 13 4 Faults and causes 8 13 4 1 Piston damages 8 3 9 1 2 4 5 6 10 7 11 627 002 23 04 2018 Repair instructions 53 ...

Страница 54: ... and on the exhaust sides Incorrect oil mixture in the fuel Change to a fuel with the correct oil mixture Too low octane fuel Change to a higher octane fuel Air leaks Damaged fuel hose Inlet gasket leaks Damaged distance piece or inlet manifold Replace the damaged parts Air leakage in the engine body Crankshaft seals leaks Cylinder and crank case gaskets leaks Replace damaged gaskets and shaft sea...

Страница 55: ...ge the top section and cause score marks 5 A too high engine speed causes the ends of the piston ring to hit the guide pin again an again This can push the pin through the top of the piston and cause damage to the cylinder 6 A too high engine speed causes vibration to the snap rings of the wrist pin The snap ring pulls out of its groove and the tension of the snap ring decreases The snap ring beco...

Страница 56: ... pis ton ring is held tightly in the groove Piston material is worn off The lower part of the pis ton skirt is thinner on the inlet side than on the exhaust side Defective air filter Small dirt particles move through the filter Attach a new filter of correct type The filter is worn out be cause of too much cleaning and small holes show in the material Examine the filter carefully for holes and dam...

Страница 57: ...ston ring is burned in its groove Carefully loosen the piston rings and clean the groove before attaching them Carbon particles in the groove de crease the heat supply between the piston and cylinder Be careful with the lower edge of the piston ring groove If this is damaged or if there are carbon particles the com pression pressure can leak through To examine the wear on the piston ring put it in...

Страница 58: ...ist pin and attach the piston rings Note Put a cloth in the crankcase opening to make sure that the piston rings do not fall into the crankcase Make sure that the piston rings are correctly attached in the grooves 3 Make sure that the pulse channel in the cylinder is open Put a new cylinder base gasket on the crankcase Lubricate the piston and the large end bearing with some drops of engine oil Us...

Страница 59: ...crews A from the crankcase cover D D A 3 Remove the crankcase cover D Remove the crankshaft E from the crankcase G Remove the crankcase gasket F D E F G 4 Use a hot air gun to increase the temperature of the crankcase and the crankcase cover to 110 C Hit the crankcase and the crankcase cover against a wooden block to make the bearings fall out 5 While the crankcase half is warm use a hammer and an...

Страница 60: ...ng in the crankcase and the crankcase cover b Use a hot air gun to increase the temperature of the crankcase and crankcase cover to 110 C c Use a hammer and an applicable punch to hit the bearings into position d Make sure that the bearings is against the shoulder in the bearing seat 2 Attach the sealing rings a Attach the sealing rings in the crankcase and the crankcase cover with an applicable p...

Страница 61: ...he needle bearing c Make sure to put wrist pin snap ring correctly in the slots d Put the flywheel key in position in the crankcase keyway Make sure that the flat surface is parallel to the center line of the crankshaft e Attach the flywheel 6 Attach and lubricate the cylinder a Put the cylinder base gasket I in the correct position b Put a piston assembly kit J below the piston to make sure the p...

Страница 62: ...he muffler for wear and damage Replace the muffler if it is damaged 3 Examine the spark arrester screen Replace the spark arrester screen if it is damaged 4 Examine the remaining parts Replace worn or damaged parts with new ones 5 Make sure that the muffler is correctly attached to the product 8 15 3 To assemble the muffler 1 Attach the protective plate G with the screw H 2 Hold the heat shield E ...

Страница 63: ...e harness frame 8 16 2 To assemble the harness frame 1 Attach the engine to the support plate on the harness frame 2 Attach the washers B and C and the nut A B A C 3 Attach the fuel hose only on the model967 84 33 xx 4 Pull up the knob and attach the shaft 627 002 23 04 2018 Repair instructions 63 ...

Страница 64: ...valve The needle valve is worn Object in the needle valve guide Idle speed low speed The engine does not operate on idle speed The stop screw for the throttle does not operate correctly Blocked fuel filter Blocked fuel hose Air in fuel pipes The carburetor is not attached correctly The lever arm of the needle valve does not operate correctly The idle speed is too low Defective heat insulation seal...

Страница 65: ...he control diaphragm is damaged The needle valve is worn Object in the needle valve guide The engine stops when idling The stop screw for the throttle does not operate correctly Blocked fuel filter Blocked fuel hose Air in fuel pipes The needle valve is defective Defective heat insulation seal The lever arm of the needle valve is too high The lever arm of the needle valve does not operate correctl...

Страница 66: ... decreasing speed The engine does not increase speed Blocked fuel filter Blocked fuel hose Air in fuel pipes Vacuum pulse leakage Blocked vacuum pulse pipe Loose screws on the pump cover Defective pump diaphragm The needle valve is defective The carburetor is not attached correctly The lever arm of the needle valve is damaged The lever arm of the needle valve is too low The lever arm of the needle...

Страница 67: ...627 002 23 04 2018 Troubleshooting 67 ...

Страница 68: ...1159786 26 2018 06 25 ...

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