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

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Electrical system

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Contents

Checking the ignition spark ____________________ 8

Replacing the spark plug cover ________________ 10

Dismantling ________________________________ 11

Drive dogs _________________________________ 12

Assembly _________________________________ 12

Heated handles _____________________________ 12

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

Contents

English Model 343R, 345RX, 343F, 345FX, 345FXT Contents Workshop Manual Brushcutter, Trimmer General recommendations Contents Starter 1Starter Dismantling Assembly Starter Replacing the drive dogs Electrical system 502 71 Electrical systemChecking the ignition spark Tip Replacing the spark Plug cover 502 50 502 54 Drive dogs Heated handles Wiring diagram Electrical system Fuel system Fuel system Air filter Tank venting Fuel filter Dismantling Fuel pumpCarburettor Blending unit Carburettor’s designMetering unit Pump unit Dismantling the carburettor Fuel system Little shorter than the L-needle PositionedFor example, the H-needle is a Assembling the carburettor H-needle is a little shorter Than the L-needleCheck carefully that the fuel hoses Are not bent or pinched when Fine adjustment Carburettor settingsBasic setting Setting Recommended max. speed must not be exceeded Correctly adjusted carburettorTachometer should always be used to find the optimal Idling speed T-screw Carburettor adjustment 345RX/FX Adjusting the L-needle Adjusting the H-needleThrottle Rotating Check for wear on pins a and B Tip Page Centrifugal clutch Centrifugal clutch 502 21 Centrifugal clutch Do not lose the sleeve bearings found in the clutch shoes Clutch drum 502 11 Change the bearings in the clutch housing if necessary Page Angle gear Angle gear Let the small circlip around the axle remain 503 97 Input axle with pinion must be dismantled first Shaft 503 80 Cylinder and piston Cylinder and piston Decompression valve Turn the valve the right way when fittingWhen the valve is fitted the small hole must face outwards Cleaning, inspection Inlet manifold Cause Action Analysis and actionsInsufficient lubrication Piston scoring caused by heavy carbon deposits Piston damage caused by a too high engine speed Piston ring breakage Foreign objects Cause Service tips Defect Action Wear tolerances Crankshaft and crankcase Crankshaft and crankcase Crankshaft and crankcase 502 52 Inspecting Crankshaft Assembly Leakage testing Crankcase Press down the sealing plates asFar as possible between the bolts To ensure a proper seal Husqvarna E-Tech 503 55