Husqvarna K970 manual Kickback, General rules, Pinching kickback, How to aviod kickback

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OPERATING

Kickback

WARNING! Kickback can happen very

!suddenly and violently; kicking the power cutter and cutting blade back at the user. If this happens when the cutting blade is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.

The word kickback is used to describe the sudden reaction that causes the power cutter and cutting blade to be thrown from an object when the upper quadrant of the blade, known as the kickback zone, touches an object.

General rules

Kickback only occurs when the cutting blades kickback zone touches an object.

Never use the kickback zone of the blade for cutting.

Keep a good balance and a firm foothold. Stand at a comfortable distance from the work piece.

Always cut at maximum speed.

Take care when inserting the blade in an existing cut. Never cut in a narrower pre-cut cut.

Never cut above shoulder height.

Be alert to movement of the work piece or anything else that can occur, which could cause the cut to close and pinch the blade.

Pinching kickback

Pinching is when the cut closes and pinches the blade. If the blade is pinched or stalled the reactive force will be strong and you might not be able to control the power cutter.

If the blade is pinched or stalled in the kickback zone, the reactive force will push the power cutter up and back towards the user in a rotating motion causing serious or even fatal injury.

How to aviod kickback

Avoiding kickback is simple.

The work piece must always be supported so that the cut stays open when cutting through. When the cut opens there is no kickback. If the cut closes and pinches the blade ther is always a risk of kickback.

Take care when inserting the blade in an existing cut.

Be alert to movement of the work piece or anything else that can occur, which could cause the cut to close and pinch the blade.

Transport and storage

Secure the equipment during transportation in order to avoid transport damage and accidents.

For transport and storage of Blades, see the section "Blades".

For transport and storage of fuel, see the section "Fuel handling".

Store the equipment in a lockable area so that it is out of reach of children and unauthorized persons.

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Contents Ring Explanation of warning levels KEY to SymbolsSymbols on the machine Contents Dear customer FeaturesPresentation What is what on the power cutter? What is WHAT?Stop switch MACHINE´S Safety EquipmentGeneral Throttle lockoutVibration damping system Off, and the stop switch in Stop positionMuffler Checking the vibration damping systemBlades Transport and storage Fitting the blade Assembling and AdjustmentsWater hose Fueling Fuel HandlingFuel Long-term storage Protective equipment General safety precautionsOperating Basic working techniques Work area safetyCutting holes Cutting depthSmall work Kickback How to aviod kickbackGeneral rules Pinching kickbackBefore starting Starting and StoppingStarting Start the engineStopping Functional inspection MaintenanceMaintenance schedule Functional inspection CleaningReplacing the support rollers Support rollersDrive belt Drive wheelReplacing the drive wheel Tensioning the drive beltCarburetor Adjusting the idle speedStarter Checking the starter cordFuel system Air filter Reconstructing the bladeDrive gear, clutch Replacing the air filterTroubleshooting schedule Trouble ShootingCutting equipment Technical DataTechnical data Your Warranty Rights and Obligations Federal Emission Control Warranty StatementMaintenance Statement Page 2012-01-18 rev Original instructions 1152681-95