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Workshop manual

131R

English

675 - 002 - 23.04.2018

Содержание 131R

Страница 1: ...Workshop manual 131R English 675 002 23 04 2018 ...

Страница 2: ...14 6 Servicing tools 6 1 Servicing tools for 967 84 31 xx and 967 84 30 xx 16 7 Function overview 7 1 Type plate Product serial number 18 7 2 Engine 18 7 3 Fuel 18 7 4 Cutting equipment 19 7 5 To sharpen grass cutters and grass blades 20 8 Repair instructions 8 1 Product overview for repair instructions 21 8 2 To clean and examine the product parts 21 8 3 Starter 22 8 4 Ignition system 24 8 5 Hand...

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: ...ten the screws 3 1 4 To connect the throttle cable and stop switch wires 1 Remove the air filter cover 2 Install the throttle cable A through the carburettor bracket B A B C 3 Turn the cable adjuster sleeve C into the carburettor bracket fully 4 Put the slot fitting D on the carburettor At this time the recessed hole E for the cable lug F is away from the cable adjuster sleeve C G D E F 5 Rotate t...

Страница 6: ...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 the 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 Install the nut E Hold the shaft of the wrench near the blade guard as much as possible To tighten the nut you must turn the wrench in the opposite direction of ro...

Страница 7: ...lade in the transport guard A 2 Put the two fasteners B into the slots C to attach the transport guard B A C 3 1 9 To install the 2 teeth blade in the guard 1 Install the blade in the transport guard 3 1 10 To adjust the harness WARNING Always attach this product to the harness correctly If not you cannot control the product safely and this can result in injury to you or others Do not use a harnes...

Страница 8: ...njury Use gloves WARNING Move the product away from the refuelling area and the power Put it on a flat surface Make sure that no objects touch the cutting attachment WARNING Make sure that no unauthorised persons are in the work area Or it can cause a risk of dangerous injury The safety distance is 15 m 1 Put the stop switch to the start position 2 Press the air purge ten times 3 Move choke contro...

Страница 9: ...p is damaged Do not use a product with damaged spark plug cap 3 2 3 To start a warm engine 1 Put the stop switch to the start position 2 Press the air purge ten times 3 Set the choke control to the run position then pull the start rope until the engine starts 3 2 4 To stop Push the stop switch to stop the engine 675 002 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 30 xx 967 84 32 xx 8 5 1 NGK BPMR7A 0 6 0 02 FENGLONG CDi 967 84 31 xx 967 84 33 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 30 xx 967 84 32 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: ...ss kg 7 0 7 0 Fuel tank capacity cm3 900 900 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 d...

Страница 14: ...13 mm 18 20 Nm 4 mm 6 8 Nm 4 mm 4 6 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 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 4 mm 3 5 Nm 5 mm 6 8 Nm 4 mm 3 5 Nm 4 mm 4 6 Nm 3 5 Nm 14 Servicing data 675 002 23 04 2018 ...

Страница 15: ...5 mm 4 6 Nm 0 6 1 Nm 1 5 2 5Nm 0 6 1 Nm 5 mm 6 8 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 1 5 Nm 4 mm 1 5 2 Nm 5 mm 6 8 Nm 675 002 23 04 2018 Servicing data 15 ...

Страница 16: ...6 Servicing tools 6 1 Servicing tools for 967 84 31 xx and 967 84 30 xx 11 9 3 12 13 14 10 1 2 4 5 6 7 8 15 16 16 Servicing tools 675 002 23 04 2018 ...

Страница 17: ... 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 18: ...f an air cooled engine Mixture ratio 1 40 2 5 Oil of low quality and high oil fuel ratio can decrease the lifetime of catalytic converters Speak to your dealer when you select an oil If Husqvarna two stroke oil is not available you can use another two stroke oil of good quality that is intended for air cooled engines Contact your dealer when you select oil Do not use the two stroke oil for water c...

Страница 19: ...s before use to increase the life length 7 4 3 Grass blades and grass cutters Use the product with an approved grass blade Do not use a grass blade without proper installation of all required parts Make sure that the installation is done correctly and that the proper parts are used Inproper installation may cause the blade to fly off and seriously injure the operator or the bystanders Wear protect...

Страница 20: ...lade 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 Sharpen grass cutters and grass blades with a single cut flat file 2 Sharpen all edges of the grass cutters and blades equally to keep the balance 20 Function overview 675 002 23 04 2018 ...

Страница 21: ... 8 Centrifugal clutch 9 Bevel gear 10 Cylinder and piston 11 Crankshaft and crankcase 12 Muffler 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 675 002 23 04 2018 Repair instructions 21 ...

Страница 22: ...e 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 stops WARNING The recoil spring can cause injury to your thumb when the starter pulley rotates in reverse 4 Remove the screw A and remove the pulley B Remove the torsion spring C Remove the starter pulley D to access ...

Страница 23: ... of the starter pulley with cold resistant grease or thin oil 5 Put the starter rope through the opening in the starter housing and the opening in the bearing journal 8 3 4 To assemble the starter 1 Put the starter pulley down into the starter housing 2 Put the torsion spring in the starter pulley 3 Put the pulley on the starter pulley and attach the screw 4 Pull the starter rope through the start...

Страница 24: ...crew A Tighten all screws to the correct torque Refer to Service data for the model 967 84 31 xx and the model 967 84 30 xx on page 14 A B D C E 8 3 5 To replace the drive 1 Remove the starter assembly as given in To disassemble the starter on page 22 2 Use a piston stop to lock the axle 3 Loosen the nut A Remove the drive and the spacer in the drive disc A 4 Examine the drive Clean the drive if i...

Страница 25: ...A B C 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 H and the spacers that hold the centrifugal clutch Lift off the clutch Remove the 2 spacers between the flywheel and the centrifugal clutch H H 10 Attach the puller on the flywheel Hold the puller to loosen and remove the nut 675 002 23 04 2018 Repair instructions 25 ...

Страница 26: ...he 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 F 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 distance between the ignition module and the flywheel is 0 3 mm 4 Assemble the clutch dr...

Страница 27: ...cup and the spark plug cover 2 Remove 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 ...

Страница 28: ...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 4 screws the bolt and the nu...

Страница 29: ...f it is dirty or damaged B C D A E 8 6 2 To clean and examine the air filter CAUTION Do not use gasoline to clean the air filter it will damage the air filter 1 Examine the air filter If the air filter is damaged replace it with a new air filter 2 Clean the air filter with warm water and cleaning agent Make sure to use the correct cleaning agent see Servicing tools on page 16 Flush the air filter ...

Страница 30: ...and examine the fuel tank 1 Disassemble the fuel tank cap for cleaning Use a screwdriver to remove the housing A that contains the check valve B and cover C 2 Use compressed air to clean the filter D and the hole in the fuel tank cap E 3 Examine the check valve a Press the sides of the check valve to see a small space G If you can see the space when you do not press the sides of the check valve th...

Страница 31: ...rburetor 1 Remove the air filter cover and the air filter 2 Close the choke valve and blow dirt off the carburetor 3 Disconnect the throttle cable 4 Disconnect the fuel hoses from the carburetor and make a note of how they are connected 5 Remove the carburetor screws and the air filter holder 6 Push fuel through the carburetor with the bellows of the fuel pump Fill all the pipes with fuel This pus...

Страница 32: ...A and remove the lever the axle the needle valve and the spring Be careful to prevent that the spring ejects A 12 Examine the lever arm and the needle valve for wear a Examine the connection points against the control diaphragm for wear b Examine the grooves for the needle valve for wear c Examine the top of the needle valve for wear d Examine the groove for the lever arm for wear e Replace damage...

Страница 33: ...ch fuel goes into the carburetor If the lever arm is set too low a too small quantity of fuel goes into the carburetor 15 Replace the nozzle of the carburetor if it is damaged Use a small screwdriver to remove the nozzle A and the small O ring B from the carburetor housing A B Note Do not disassemble the plastic pipe in the valve housing 675 002 23 04 2018 Repair instructions 33 ...

Страница 34: ...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 carburetor is sealed b Connect a pressure tester to the fuel inlet on the carburetor R...

Страница 35: ...ly 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 carburetor Put the carburetor gasket in position and attach the carburetor tightly to the dis...

Страница 36: ...the piston 4 Remove the 2 screws that hold the centrifugal clutch Remove the clutch Remove the flat washers that are behind the clutch shoes 8 10 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 36 Repair ins...

Страница 37: ...lywheel See the turn arrows on the clutch shoes 2 Attach the clutch drum assembly 3 Remove the piston stop 4 Attach the shaft with the screws 8 10 4 To disassemble the clutch drum 1 Loosen the screws and remove the shaft assembly 2 Remove the 4 screws Remove the clutch drum assembly 675 002 23 04 2018 Repair instructions 37 ...

Страница 38: ...F Use pliers to remove the large snap ring G Remove the bearing H F H G 8 10 5 To assemble the clutch drum 1 Attach the bearing H Attach the large snap ring G Attach the clutch drum F F H G 2 Attach the small snap ring E Attach the bushing D Attach the large snap ring C Attach the clamp B to the clutch drum housing A B C D E 3 Attach the clutch drum assembly with the 4 screws 38 Repair instruction...

Страница 39: ...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 675 002 23 04 2018 Repair instructions 39 ...

Страница 40: ...nd Q remove the snap ring P from the input shaft S U T R S O Q P V X P 8 11 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 41: ...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 12 Cylinder and piston 8 12 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 42: ...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 43 b Examine the piston rings f...

Страница 43: ...8 12 4 Faults and causes 8 12 4 1 Piston damages 8 3 9 1 2 4 5 6 10 7 11 675 002 23 04 2018 Repair instructions 43 ...

Страница 44: ... 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 45: ...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 46: ... 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 47: ...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 48: ...rist 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 U...

Страница 49: ...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 50: ...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 51: ...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 52: ...lean all parts Clean the spark arrester screen with a wire brush 2 Examine the 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 14 3 To assemble the muffle...

Страница 53: ...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 54: ...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 55: ... 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 56: ...1159785 26 2018 06 25 ...

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