Electrical system | Husqvarna 343F, 345FX, 345FXT, 343R, 345RX

2	Electrical system

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Husqvarna 343F, 345FX, 345FXT, 343R, 345RX manual Electrical system

Contents

English Workshop Manual Brushcutter, Trimmer Model 343R, 345RX, 343F, 345FX, 345FXT Contents General recommendations Starter Contents Dismantling 1Starter Starter Assembly Replacing the drive dogs Electrical system Electrical system Checking the ignition spark502 71 Tip 502 50 Replacing the spark Plug cover 502 54 Heated handles Drive dogs Wiring diagram Electrical system Fuel system Air filter Fuel system Fuel filter Tank venting Fuel pump CarburettorDismantling Carburettor’s design Metering unitBlending unit Dismantling the carburettor Pump unit Fuel system Positioned For example, the H-needle is aLittle shorter than the L-needle Assembling the carburettor Are not bent or pinched when H-needle is a little shorterThan the L-needle Check carefully that the fuel hoses Carburettor settings Basic settingFine adjustment Idling speed T-screw Setting Recommended max. speed must not be exceededCorrectly adjusted carburettor Tachometer should always be used to find the optimal Rotating Carburettor adjustment 345RX/FXAdjusting the L-needle Adjusting the H-needle Throttle Check for wear on pins a and B Tip Page Centrifugal clutch 502 21 Centrifugal clutch Do not lose the sleeve bearings found in the clutch shoes Centrifugal clutch 502 11 Clutch drum Change the bearings in the clutch housing if necessary Page Angle gear Let the small circlip around the axle remain Angle gear Input axle with pinion must be dismantled first 503 97 503 80 Shaft Cylinder and piston Cylinder and piston Turn the valve the right way when fitting When the valve is fitted the small hole must face outwardsDecompression valve Inlet manifold Cleaning, inspection Analysis and actions Insufficient lubricationCause Action Piston scoring caused by heavy carbon deposits Piston ring breakage Piston damage caused by a too high engine speed Cause Foreign objects Defect Action Service tips Wear tolerances Crankshaft and crankcase Crankshaft and crankcase 502 52 Crankshaft and crankcase Inspecting Crankshaft Assembly To ensure a proper seal Leakage testing CrankcasePress down the sealing plates as Far as possible between the bolts 503 55 Husqvarna E-Tech