Husqvarna 966451906 manual English

Page 39

Repair Instructions

4.Assemble needle valve M with lever arm Q, shaft L and spring R, and tighten screw P. (Fit the expansion washer). See figure 40.

Fig 40

5.Check using a ruler or the like that the lever is level with the assembly plane on the cover. If necessary, the lever arm can be bent, see figure 41.

Fig 41

7.Fit gasket K, the control membrane J and the pump cover H. See figure 42.

8.Carry out a pressure test.

Fig 42

H

J

K

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Image 39
Contents 562XP/XPG Page Contents Index Vibration damping system Contents Introduction and safety regulationsIntroduction and safety instructions Special Instructions General InstructionsSymbols in the Workshop Manual Symbols on the sawTechnical data NGK CMR6H Service tools 12a12b 13d 13a 13b 13c Key Service dataEnglish Contents Safety equipmentCleaning and inspection Dismantling the chain brakeAlt Assembling the chain brake Do not touch the muffler until it has cooled. Risk of burns Dismantling the mufflerAssembling the muffler Functional inspectionDismantling the start/stop control Replacing the chain catcherResistance test stop function Assembling the start/stop controlCleaning and inspection Safety equipment Repair instructions Dismantling the starter Cleaning and inspection Clean the parts and checkReplacing a broken or worn starter cord Tensioning the return springWear protective glasses Replacing a broken return spring Starter assemblyDismantling the ignition module and flywheel Assembling the ignition module and flywheel Min 60 mm Dismantling the centrifugal clutchDismantling the oil pump and screen Assembly of centrifugal clutchDismantling the intake system Assembling the oil pump and screenAssembling the intake system Design CarburettorFunction Dismantling the carburettor English Assembly Cleaning and inspection Clean all units in clean petrolEnglish Fitting on the saw Pressure testing the carburettorMake sure that the following components are correctly fitted Opening pressure inwards Tank unitVenting the fuel tank Test Opening pressure outwardsVibration damping system Dismantle Replacing the fuel filterReplacing the fuel hose/return hose Replacing the fuel pump PurgeDismantling the piston and cylinder English Piston ring breakage Faults and causes Score marks on the piston aAssembling the piston and cylinder Carbon build-up BLoosen Pressure testing the cylinderDismantling the crankshaft and crankcase Page Repair Instructions Sealing rings Assembling a complete crankshaft Repairing damaged threads Replacing the bar boltReplacing a bar bolt with intact crankcase English Troubleshooting Troubleshooting StartingIdling low speed Troubleshooting methods High speedAcceleration and retardation 2011W31 115 26