Jonsered CS 2156 manual Cutting, Limbing

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SAFETY INSTRUCTIONS

In most cases you can avoid these problems by cutting in two stages; from the top and from the bottom.You need to support the object so that it will not trap the chain or split during cutting.

WARNING! If the chain jams in the cut: stop

!the engine! Don’t try to pull the chain saw free. If you do you may be injured by the chain when the chain saw suddenly breaks free. Use a lever to open up the cut and free the chain saw.

The following instructions describe how to handle the commonest situations you are likely to encounter when using a chain saw.

Cutting

The log is lying on the ground.There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you ﬁnish the cut.

Cut all the way through the log from above. Avoid letting the chain touch the ground as you ﬁnish the cut. Maintain full throttle but be prepared for what might happen.

If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.

Turn the log and ﬁnish the cut from the opposite side.

The log is supported at one end. There is a high risk that it will split.

Start by cutting from below (about 1/3 of the way through).

Finish by cutting from above so that the two cuts meet.

The log is supported at both ends. There is a high risk that the chain will jam.

Start by cutting from above (about 1/3 of the way through).

Finish by cutting from below so that the two cuts meet.

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difﬁcult branches piece by piece.

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Contents EPA KEY to Symbols Key to symbolsContents EPA Personal protective equipment Safety InstructionsMachine′s safety equipment Chain brake and front hand guard Stop switch Throttle lockChain catcher Right hand guardChecking the front hand guard MufﬂerChecking brake band wear Checking the inertia brake release Checking the brake triggerThrottle lock Chain catcherStop switch Cutting equipmentGeneral rules Vibration damping systemCutting equipment designed to minimise kickback BarChain Some terms that describe the bar and chainSharpening your chain and adjusting raker clearance General information on sharpening cutting teethSharpening cutting teeth With a badly sharpened chainGeneral advice on setting raker clearance Setting the raker clearanceTensioning the chain If the raker clearance is too largeLubricating cutting equipment Chain oilFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Do not let go of the handles How to avoid kickbackWhat is kickback? General safety precautions StartingFuel safety Basic safety rulesGeneral working instructions Transport and storageTerms Basic cutting techniqueGeneral Cutting LimbingTree felling technique Safe distanceFelling direction Clearing the trunk and preparing your retreatFelling cut General advice Freeing a tree that has fallen badlyCutting the trunk into logs Freeing a trapped treeWhat is WHAT? What is what on the chain saw?Assembly Fitting the bar and chainFollowing applies to chain saws with catalytic converters Fuel HandlingFuel Chain oil FuellingStarting and Stopping Starting and stoppingCold engine Warm engineStopping Maintenance CarburettorCorrectly adjusted carburettor StarterChanging a broken or worn starter cord Tensioning the recoil springAir ﬁlter Spark plugMufﬂer Fitting the starterAdjustment of the oil pump Centrifugal cleaning TurboWhen making adjustments Needle bearing lubricationTemperature 0 C 32 F or colder Temperature -5C 23 F or colderHeated handles CS 2156W, CS 2159W Electrical carburettor heating CS 2156WH, CS 2159WHBelow you will ﬁnd some general maintenance instructions Daily maintenance Weekly maintenanceMonthly maintenance Technical Data Technical data063/1,6 mm 22BP Bar Length Pitch, inch Max nose Chain Inches Radius050/1,3 mm 20BP Federal Emission Control Warranty Statement Your Warranty Rights and Obligations1088891-95