Manuals / Husqvarna / Lawn and Garden / Chainsaw

Husqvarna 1018855-26 Bolts placed at, Tank Unit, 262XP, 268K, 272XP, 272K, 272S, 281XP, 242XP

Models: 1018855-26 965030296 965030298

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Page 104

TANK UNIT

			F G H
Saw	Bolts placed at	Saw	Bolts placed at
36	A, D, F, K	257	A, D, F, L
40	Has no tank unit	262XP	A, D, F, L
41	A, D, F, K	268	A, C, D, F, G, K
42	A, D (under a cover) F, G, L	268K	A, C, D, F, G, K
45	Has no tank unit	272XP	A, C, D, F, G, K
51	A, D, F, L (all under covers)	272K	A, C, D, F, G, K
55	A, D, F, L (all under covers)	272S	A, C, D, F, G, K
61	A, C, D, F, G, K	281XP	A, C, D, F, G, K
242XP	A, D (under a cover) F, G, L	288XP	A, C, D, F, G, K
246	A, D (under a cover) F, G, L	394XP	B, E, G, I, H
254XP	A, D, F, L	3120XP	C, D, F, I, J

104 – English

Page 104

Image 104

Husqvarna 1018855-26 Bolts placed at, Tank Unit, 262XP, 268K, 272XP, 272K, 272S, 281XP, 242XP, 288XP, 394XP, 254XP, 3120XP

Contents

101 Husqvarna Chain SawsWorkshop Manual LIST OF CONTENTS Air filterTank unit Anti-vibration systemSafety UpdatesINTRODUCTION GeneralINTRODUCTION Repair of a specific sub-assemblyDismantling and reassembly of the entire chain saw Special instructions SAFETY REGULATIONSGeneral Instructions TECHNICAL DATA 6 - EnglishTECHNICAL DATA TECHNICAL DATA 8 - EnglishTECHNICAL DATA TECHNICAL DATA 10 - EnglishTECHNICAL DATA TECHNICAL DATA 12 - EnglishTECHNICAL DATA TOOLS Tools for all chain saws502 50 57-01 3/16 502 50 16-01 6 mm 502 50 64-01 5 mm 502 50 18-01 4 mm 502 50 19-01 3 mm 502 50 88-01 5 mmTools for saws 36 and Tools for saws 40, 45, 51 andTOOLS compl 502 50Tools for saws 42, 242 and Tools for saws 254, 257 andTOOLS compl 502 51Tools for saws 61, 268 and Tools for saws 281 andTOOLS compl 502 51Tools for saws 394 and TOOLS3 mm 4 mm 5 mm 3/16 8 mm 10 mm 502 50 compl 502 51List of tools TOOLSOrder number DesignationSERVICE DATA Saws 36 and Character keySERVICE DATA English22 - English SERVICE DATA Saws 42, 242 andCharacter key SERVICE DATA EnglishSaws 40 and SERVICE DATACharacter key 24 - EnglishSERVICE DATA EnglishSaws 51 and SERVICE DATACharacter key 26 - EnglishSERVICE DATA 3-4EnglishSERVICE DATA Saws 254 and 5254Character key 28 - EnglishSERVICE DATA English30 - English SERVICE DATACharacter key SERVICE DATA English32 - English SERVICE DATA Saws 61, 268 andCharacter key SERVICE DATA English34 - English SERVICE DATA Saws 281 andCharacter key SERVICE DATA English36 - English SERVICE DATACharacter key SERVICE DATA 20-22,5 10-12 12-1430-40 2-3 3-5 5-638 - English SERVICE DATA SawCharacter key SERVICE DATA EnglishTROUBLE SHOOTING Trouble shooting schematic StartingIdling low rpm Idling low rpm contTROUBLE SHOOTING Trouble shooting methodsHigh rpm Acceleration and retardationSAFETY EQUIPMENT Chain brakeDismantling Wear protective glassesSAFETY EQUIPMENT Cleaning and Inspection AssemblySAFETY EQUIPMENT 44 - EnglishSAFETY EQUIPMENT SAFETY EQUIPMENT 46 - EnglishThe engine should not be running during the test Checking brake operationSAFETY EQUIPMENT Replacing SAFETY EQUIPMENT Chain catcherDescription Muffler SAFETY EQUIPMENTDismantling Do not touch the muffler until it has cooled. Risk of burnsSAFETY EQUIPMENT Cleaning and InspectionAssembly when working on a catalytic converterWARNINGSAFETY EQUIPMENT Stop switch Cleaning and InspectionAssembly DismantlingThrottle lock SAFETY EQUIPMENTDismantling The fuel used in the chain saw poses the following hazardsSAFETY EQUIPMENT Cleaning and inspection SAFETY EQUIPMENTClean all parts Check that the springs, where fitted, areSAFETY EQUIPMENT AssemblyThe fuel used in the chain saw poses the following hazards 1. The liquid and its vapours are poisonousSAFETY EQUIPMENT 56 - EnglishWear protective glasses STARTERDismantling Changing the ferrule Cleaning and InspectionSTARTER Remove the parts of the old ferruleAssembly STARTER60 - English STARTERCheck the cord tension ELECTRICAL SYSTEM Ignition system DismantlingELECTRICAL SYSTEM Cleaning and Inspection AssemblyClean all parts, especially the flywheel and shaft taper ELECTRICAL SYSTEMStop switch Fitting the spark plug coverELECTRICAL SYSTEM 64 - EnglishTrouble shooting Handle heatingELECTRICAL SYSTEM DescriptionChecking the power switch ELECTRICAL SYSTEMChecking the generator Checking the heat loops in the rear handlesCENTRIFUGAL CLUTCH DismantlingCENTRIFUGAL CLUTCH Cleaning and InspectionClean all parts and inspect the following NOTE! The bearing can also be greased later through the hole on the crankshaft AssemblyCENTRIFUGAL CLUTCH 70 - English LUBRICATION SYSTEMDismantling LUBRICATION SYSTEM LUBRICATION SYSTEM 72 - English40/45 51/55LUBRICATION SYSTEM 36/4174 - English LUBRICATION SYSTEM40/45 Dismantling the oil pumps worm gear LUBRICATION SYSTEMFirst screw the tool onto the entire worm gear Turn the screw until the worm gear is removedLUBRICATION SYSTEM Cleaning and InspectionThat the taper on the adjuster screw shows no signs of wear LUBRICATION SYSTEM Assembling the worm gearAssembling the oil pump LUBRICATION SYSTEM 78 - EnglishLUBRICATION SYSTEM LUBRICATION SYSTEM Saws 42, 61, 242, 246, 254, 257, 262, 268, 272, 281, 288, 394 and36/41 50/51LUBRICATION SYSTEM 40/45LUBRICATION SYSTEM 40/4551/55 82 - EnglishCARBURETTOR DescriptionDesign The fuel used in the chain saw poses the following hazardsCARBURETTOR OperationCARBURETTOR DismantlingThe fuel used in the chain saw poses the following hazards 1. The liquid and its vapours are poisonousTillotson HS 228 B Tillotson HS 255 BCARBURETTOR 86 - EnglishCARBURETTOR Tillotson HS 260 AWalbro HDA and HD Walbro WJ Walbro WGCARBURETTOR 88 - EnglishCARBURETTOR Walbro WTZAMA C1Q-EL1 Cleaning and Inspection CARBURETTORThe fuel used in the chain saw poses the following hazards 1. The liquid and its vapours are poisonousAssembly CARBURETTORPlugs The fuel used in the chain saw poses the following hazards92 - English CARBURETTORTillotson HS 228 B CARBURETTOR Tillotson HS 255 B94 - English CARBURETTORTillotson HS 260 A Walbro HDA och HD CARBURETTOR96 - English CARBURETTORWalbro WJ CARBURETTOR Walbro WG98 - English CARBURETTORWalbro WT CARBURETTOR ZAMA C1Q-EL1Pressure testing Refitting onto chain sawCARBURETTOR The fuel used in the chain saw poses the following hazardsAIR FILTER 268K, 272K and 272SPrefilter Compressed air at a high pressure can damage the foam102 - English AIR FILTERMain filter TANK UNIT Cleaning and InspectionDismantling The fuel used in the chain saw poses the following hazardsBolts placed at TANK UNIT262XP 268KEnsure that the fuel pipe and throttle cable are not damaged AssemblyTANK UNIT ANTI-VIBRATION SYSTEM DescriptionDismantling 106 - EnglishAssembly ANTI-VIBRATION SYSTEM108 - English PISTON AND CYLINDERDismantling 1. The piston crown 2. The top of the cylinder bore Cleaning and InspectionPISTON AND CYLINDER Faults and causes PISTON AND CYLINDERAssembly PISTON AND CYLINDERPISTON AND CYLINDER 112 - EnglishPressure testing PISTON AND CYLINDERDecompression valve Crankcase and cylinderEnsure that no dirt or foreign particles enter the bearings CRANKCASE AND CRANKSHAFTDismantling CRANKCASE AND CRANKSHAFT 116 - English Cleaning and InspectionCRANKCASE AND CRANKSHAFT Ensure that dirt and foreign particles do not enter the bearing AssemblyCRANKCASE AND CRANKSHAFT CRANKCASE AND CRANKSHAFT 118 - EnglishCRANKCASE AND CRANKSHAFT Ensure excess gasket material does not fall into the crankcase120 - English CRANKCASE AND CRANKSHAFTEnsure that dirt and foreign particles do not enter the bearing Bar bolts CRANKCASE AND CRANKSHAFTDismantling Changing the sealsCRANKCASE AND CRANKSHAFT Assembly CRANKCASE AND CRANKSHAFTCRANKCASE AND CRANKSHAFT 3.5 mm42, 242, 246 1 mm 3120

Bolts placed at

3120XP