Husqvarna 343F, 345FX, 345FXT, 343R, 345RX manual Clutch drum, 502 11

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4

Centrifugal clutch

Assembly

Temporarily place the clutch shoes on the driving disc and loosely tighten the bolts.

Pry out the shoes and hook one spring to each shoe from underneath.

Get in the clutch shoes as far as possible and hook the springs to the adjacent clutch shoe.

Remove the bolts and mount the cover plate.

Fit the clutch to the crankshaft and the remaining parts in the reverse order as set out for dismantling.

Clutch drum

Dismantle the clutch housing and the clutch drum and drive axle from the shaft.

Assembly

Temporarily place the clutch shoes on the driving disc and loosely tighten the bolts.

NOTE!

The bevelled edge of the shoes should be facing outwards towards the cover plate.

Pry out the shoes and hook one spring to each shoe from underneath.

Fold in the clutch shoes as far as possible and hook the springs to the adjacent clutch shoe.

Use a small screwdriver or flat-nosed pliers.

NOTE!

Make sure that the spring eye is pressed into the correct position.

Remove the bolts and put the cover plate in place.

Tighten the bolts, fit the clutch to the crankshaft and the remaining parts in the reverse order as set out for dismantling.

Clutch drum

Separate the engine body and shaft as described previously.

Loosen the bolts holding the clutch housing against the shaft.

Remove the clutch housing and drive axle from the shaft.

34

Unscrew the clutch drum from the drive axle.

502 52 16-02

502 11 46-03

Unscrew the clutch drum from the drive axle.

NOTE!

Avoid fixing the drive axle in a vice. Marks can form on the axle even if protective jaws are used. This in turn leads to damage on the plastic insert in the shaft.

Use tools 502 52 16-02 and 502 11 46-03.

Check the clutch drum for wear. The internal diameter must not exceed 70.0 mm.

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Contents English Workshop Manual Brushcutter, Trimmer Model 343R, 345RX, 343F, 345FX, 345FXT ContentsGeneral recommendations Starter ContentsDismantling 1StarterStarter AssemblyReplacing the drive dogs Electrical system 502 71 Electrical systemChecking the ignition spark Tip 502 50 Replacing the spark Plug cover502 54 Heated handles Drive dogsWiring diagram Electrical system Fuel system Air filter Fuel systemFuel filter Tank ventingDismantling Fuel pumpCarburettor Blending unit Carburettor’s designMetering unit Dismantling the carburettor Pump unitFuel system Little shorter than the L-needle PositionedFor example, the H-needle is a Assembling the carburettor Are not bent or pinched when H-needle is a little shorterThan the L-needle Check carefully that the fuel hosesFine adjustment Carburettor settingsBasic setting Idling speed T-screw Setting Recommended max. speed must not be exceededCorrectly adjusted carburettor Tachometer should always be used to find the optimalRotating Carburettor adjustment 345RX/FXAdjusting the L-needle Adjusting the H-needle ThrottleCheck for wear on pins a and B Tip Page Centrifugal clutch 502 21 Centrifugal clutchDo not lose the sleeve bearings found in the clutch shoes Centrifugal clutch502 11 Clutch drumChange the bearings in the clutch housing if necessary Page Angle gear Let the small circlip around the axle remain Angle gearInput axle with pinion must be dismantled first 503 97503 80 ShaftCylinder 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 Inlet manifold Cleaning, inspectionCause Action Analysis and actionsInsufficient lubrication Piston scoring caused by heavy carbon deposits Piston ring breakage Piston damage caused by a too high engine speedCause Foreign objectsDefect Action Service tipsWear tolerances Crankshaft and crankcase Crankshaft and crankcase 502 52 Crankshaft and crankcaseInspecting Crankshaft Assembly To ensure a proper seal Leakage testing CrankcasePress down the sealing plates as Far as possible between the bolts503 55 Husqvarna E-Tech
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