Centrifugal clutch | Husqvarna 343F, 345FX, 345FXT, 343R, 345RX

Centrifugal clutch

4

Dismantle the clutch from the crank- shaft.

502 54 15-01

Remove the 3 bolts and separate the clutch.

Twist apart the clutch.

Clean and inspect the different parts with regard to wear or other damage.

Replace the spark plug with piston stop no. 502 54 15-01.

Move the engine body to the side so that the clutch becomes accessible.

Unscrew the clutch from the crankshaft.

Fix the clutch in a vice and remove the 3 bolts.

Lift off the front cover plate and the clutch shoes.

NOTE!

Do not lose the sleeve bearings found in the clutch shoes.

Twist apart the clutch.

Clean and inspect the different parts with regard to wear or other damage.

Wear on the clutch shoes must not be greater than shown in the illustration.

Check the play in the sleeve bearings in the clutch shoes and the wear on the springs by the fastening hooks.

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Image 34

Husqvarna 343F, 345FX, 345FXT, 343R, 345RX Centrifugal clutch, Do not lose the sleeve bearings found in the clutch shoes

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 Checking the ignition spark Electrical system502 71 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 Carburettor Fuel pumpDismantling Metering unit Carburettor’s designBlending unit Pump unit Dismantling the carburettor Fuel system For example, the H-needle is a PositionedLittle shorter than the L-needle Assembling the carburettor Check carefully that the fuel hoses H-needle is a little shorterThan the L-needle Are not bent or pinched when Basic setting Carburettor settingsFine adjustment Tachometer should always be used to find the optimal Setting Recommended max. speed must not be exceededCorrectly adjusted carburettor Idling speed T-screw Throttle Carburettor adjustment 345RX/FXAdjusting the L-needle Adjusting the H-needle 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 When the valve is fitted the small hole must face outwards Turn the valve the right way when fittingDecompression valve Cleaning, inspection Inlet manifold Insufficient lubrication Analysis and actionsCause Action 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 Far as possible between the bolts Leakage testing CrankcasePress down the sealing plates as To ensure a proper seal Husqvarna E-Tech 503 55