Jonsered RS44/52 Filing the saw blade, Sharpening grass cutters and grass blades, Trimmer head

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SAFETY INSTRUCTIONS

Filing the saw blade

See the cutting attachment packaging for correct sharpening instructions. A correctly filed blade is essential for working efficiently and to avoid unnecessary wear to the blade and clearing saw.

Make sure that the blade is well supported when you file it. Use a 5.5 mm round file with a file holder.

The filing angle is 15°. File alternate teeth to the right and those in between to the left. If the blade has been heavily pitted by stones it may be necessary to dress the top edges of the teeth with a flat file, in exceptional cases. If so, this should be done before filing with a round file. The top edges must be filed down by the same amount for all the teeth.

Adjust the blade setting. This should be 1 mm.

Sharpening grass cutters and grass blades

See the cutting attachment packaging for correct sharpening instructions.

Sharpen blades and cutters using a single-cut flat file.

Sharpen all edges equally to maintain the balance of the blade.

Trimmer head

Only use the recommended trimmer heads and trimmer cords. These have been tested by the manufacturer to suit a particular engine size. This is especially important when a fully automatic trimmer head is used. Only use the recommended cutting attachment. See the chapter on Technical data.

Smaller machines generally require small trimmer heads and vice versa. This is because when clearing using a cord the engine must throw out the cord radially from the trimmer head and overcome the resistance of the grass being cleared.

The length of the cord is also important. A longer cord requires greater engine power than a shorter cord of the same diameter.

Make sure that the cutter on the trimmer guard is intact. This is used to cut the cord to the correct length.

To increase the life of the cord it can be soaked in water for a couple of days. This will make the line tougher so that it lasts longer.

IMPORTANT!

Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration.

WARNING! Always stop the engine before

!doing any work on the cutting attachment. This continues to rotate even after the throttle has been released. Ensure that the cutting attachment has stopped completely and disconnect the HT lead from the spark plug before you start to work on it.

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Contents Operator’s manual EPA Symbols KEY to SymbolsContents Machine′s safety equipment Safety InstructionsStop switch Personal protective equipmentVibration damping system Cutting attachment guardQuick release MufflerLocking nut Cutting equipmentStop switch Cutting equipment Filing the saw blade Sharpening grass cutters and grass bladesTrimmer head Fuel safety General safety precautionsStarting Transport and storageBasic working techniques General working instructionsABC of clearing Forestry clearing using a saw bladeBrush cutting with a saw blade Grass clearing using a grass bladeTrimming Grass trimming with a trimmer headWhat is what on the clearing saw? RS44 What is WHAT?What is what on the clearing saw? RS52 Assembling the handlebar and throttle AssemblyTransport position, handlebar Fitting blades and trimmer headsFitting the blade guard and saw blade Fitting a blade guard, grass blade and grass cutterFitting the trimmer guard and trimmer head Trimmy SII Fitting other guards and cutting attachmentsSpreading the load on your shoulders Adjusting the harness and clearing sawCorrect height Correct balanceFuel Handling FuelFuelling Check before starting Starting and StoppingStarting and stopping Cold engineStopping Carburettor MaintenanceMuffler Correctly adjusted carburettorCooling system High speed jet HAir filter Cleaning the air filterBevel gear Spark plugDaily maintenance Maintenance scheduleWeekly maintenance Monthly maintenanceTechnical data Technical DataYour Warranty Rights and Obligations Federal Emission Control Warranty StatementTrimmy SII Page Auto Page ´z*xy=¶5¨ Page 1088892-95