Husqvarna TC449 Workshop Manual page 110

ENGINE DISASSEMBLY/REASSEMBLY
Chain tensioning slider disassembly ......................................................52
Slider disassembly .................................................................................52
Chain sliding and tensioning slider check ..............................................52
Slider assembly .....................................................................................53
Chain tensioner assembly .....................................................................53
Cylinders disassembly and reassembly or replacement..........................54
Cylinder disassembly ............................................................................. 54
Piston disassembly ................................................................................ 55
Cylinder check ....................................................................................... 55
Piston assembly.......................................................................................56
Piston diameter check ........................................................................... 56
Piston stroke clearance definition .......................................................... 56
Piston ring assembly .............................................................................. 57
Piston with cylinder assembly ................................................................ 57
Subsequent actions ............................................................................... 58
Timing chain disassembly and reassembly or replacement. ...................59
Timing chain disassembly ...................................................................... 59
Timing chain assembly .......................................................................... 60
Subsequent actions ............................................................................... 60
Chain, chain sprocket check ....................................................................60
Timing chain check ................................................................................ 60
Replacing oil pump gears (crankcase cover removed). ...........................61
Oil pump idler gear disassembly ............................................................ 61
Oil pump control gear disassembly ........................................................ 61
Disassembly of crankshaft gear pointing oil pump idler gear ................ 62
Assembly of crankshaft gear with oil pump idler gear ........................... 62
Oil pump control gear assembly ............................................................ 62
Oil pump idler gear assembly ................................................................ 63
Oil intake pump replacement (crankcase cover removed). ......................64
Removing oil intake pump .......................................................................64
Fitting oil intake pump .............................................................................64
Removing and assembling or replacing pressure oil pump. ...................65
Oil force pump disassembly ....................................................................65
Oil force pump assembly ........................................................................65
Oil pump shaft. .............................................................................................66
Oil pump shaft disassembly ................................................................... 66
Oil pump shaft assembly ....................................................................... 66
Replacing gearbox control shaft radial sealing ring. ................................67
Removing oil seal from gearbox shaft ....................................................67
Fitting gearbox shaft oil seal ...................................................................67
Replacing output shaft oil seal. ..................................................................68
Gearbox output shaft left oil seal disassembly .......................................68
Gearbox output shaft right oil seal disassembly .....................................68
Gearbox output shaft right oil seal assembly ..........................................68
Gearbox output shaft left oil seal assembly ............................................68
Disassembling/assembling starter motor ..................................................69
Disassembling starter motor ...................................................................69
Assembling starter motor ........................................................................69
Starter drive gear replacement....................................................................70
Gear disassembly with starter motor protected against overload ...........70
Starter motor drive gear disassembly .....................................................70
Freewheel gear disassembly ..................................................................71
Freewheel gear assembly .......................................................................71
Starter motor drive gear fitting ................................................................72
Gear assembly with starter motor protected against overload ...............72
Starter motor drive gear. ..............................................................................73
Starter motor drive gear disengagement ................................................73
Starter motor drive gear fitting ................................................................73
Crankshaft axial clearance check ...........................................................74
F1.4 1 edition (08-2010) _Rev. 11-2010
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