Husqvarna 343F, 345FX, 345FXT, 343R, 345RX manual 503 97

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Angle gear

5

Remove the lubricant top-up plug.

Warm the gearbox and knock it against a wooden block so that the input axle falls out.

Remove the output axle.

502 50 65-01

503 97 64-01

Remove the lubricant top-up plug and warm the entire gearbox using a hot air gun to about 150°C.

Knock the gearbox against a wooden block so that the input axle and bearing fall out.

NOTE!

The input axle with pinion must be dismantled first.

Then remove the output axle and bearings, while the gearbox is still warm.

Use puller no. 502 50 65-01.

Assembly

Replace damaged parts.

Assemble the angle gear in the reverse order as set out for dismantling.

Fit the bearings on their respective axles. It is easier if the bearings are heated to approx. 100°C.

NOTE!

Do not forget the circlip holding the bearing on the input axle. Make sure the bearings bottom in their seats.

Heat the gearbox to approx. 150°C and first lift the output axle in position and then the input axle. Make sure the bearings bottom in their seats.

Mount the circlips and make sure they lie correctly in their grooves.

Rotate the axles and check that they rotate easily without a tendency for the cogwheels to seize.

Fill the gearbox with special grease no.

50397 64-01. Wipe any excess grease from the joint between the shaft and the angle gear before the gear is fitted to prevent it from turning around the shaft.

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Contents English Model 343R, 345RX, 343F, 345FX, 345FXT Contents Workshop Manual Brushcutter, TrimmerGeneral recommendations Contents Starter1Starter DismantlingAssembly StarterReplacing the drive dogs Electrical system Checking the ignition spark Electrical system502 71 Tip Replacing the spark Plug cover 502 50502 54 Drive dogs Heated handlesWiring diagram Electrical system Fuel system Fuel system Air filterTank venting Fuel filterCarburettor Fuel pumpDismantling Metering unit Carburettor’s designBlending unit Pump unit Dismantling the carburettorFuel system For example, the H-needle is a PositionedLittle shorter than the L-needle Assembling the carburettor H-needle is a little shorter Than the L-needleCheck carefully that the fuel hoses Are not bent or pinched whenBasic setting Carburettor settingsFine adjustment Setting Recommended max. speed must not be exceeded Correctly adjusted carburettorTachometer should always be used to find the optimal Idling speed T-screwCarburettor adjustment 345RX/FX Adjusting the L-needle Adjusting the H-needleThrottle RotatingCheck for wear on pins a and B Tip Page Centrifugal clutch Centrifugal clutch 502 21Centrifugal clutch Do not lose the sleeve bearings found in the clutch shoesClutch drum 502 11Change the bearings in the clutch housing if necessary Page Angle gear Angle gear Let the small circlip around the axle remain503 97 Input axle with pinion must be dismantled firstShaft 503 80Cylinder 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 manifoldInsufficient lubrication Analysis and actionsCause Action Piston scoring caused by heavy carbon deposits Piston damage caused by a too high engine speed Piston ring breakageForeign objects CauseService tips Defect ActionWear tolerances Crankshaft and crankcase Crankshaft and crankcase Crankshaft and crankcase 502 52Inspecting Crankshaft Assembly Leakage testing Crankcase Press down the sealing plates asFar as possible between the bolts To ensure a proper sealHusqvarna E-Tech 503 55