Jonsered CS 2156 manual Freeing a tree that has fallen badly, Cutting the trunk into logs

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SAFETY INSTRUCTIONS

Limbing

WARNING! Most kickback accidents happen

!during limbing! Pay close attention to the position of the kickback zone of the bar when you are limbing branches that are in tension!

Make sure that you can stand and move about safely. Work on the left side of the trunk. Work as close as possible to the chain saw for maximum control. If possible, let the weight of the chain saw rest on the trunk.

Keep the trunk between you and the chain saw as you move along the trunk.

Cutting the trunk into logs

See instructions under the heading Basic cutting technique.

Freeing a tree that has fallen badly

Freeing a ”trapped tree”

It is very dangerous to remove a trapped tree and there is high accident risk.

The safest method is to use a winch.

•Tractor-mounted

•Portable

Cutting trees and branches that are in tension

Preparations:

Work out which side is in tension and where the point of maximum tension is (i.e. where it would break if it was bent even more).

Decide which is the safest way to release the tension and whether you are able to do it safely. In complicated situations the only safe method is to put aside your chain saw and use a winch.

General advice:

Position yourself so that you will be clear of the tree or branch when the tension is released.

Make one or more cuts at or near the point of maximum tension. Make as many cuts of sufﬁcient depth as necessary to reduce the tension and make the tree or branch break at the point of maximum tension.

Never cut straight through a tree or branch that is in tension!

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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 Right hand guard Stop switchThrottle lock Chain catcherChecking the front hand guard MufﬂerChecking brake band wear Chain catcher Checking the inertia brake releaseChecking the brake trigger Throttle lockVibration damping system Stop switchCutting equipment General rulesSome terms that describe the bar and chain Cutting equipment designed to minimise kickbackBar ChainWith a badly sharpened chain Sharpening your chain and adjusting raker clearanceGeneral information on sharpening cutting teeth Sharpening cutting teethIf the raker clearance is too large General advice on setting raker clearanceSetting the raker clearance Tensioning the chainChecking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Do not let go of the handles How to avoid kickbackWhat is kickback? Starting General safety precautionsTransport and storage Fuel safetyBasic safety rules General working instructionsTerms Basic cutting techniqueGeneral Limbing CuttingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling cut Freeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting the trunk into logsWhat is what on the chain saw? What is WHAT?Fitting the bar and chain AssemblyFollowing applies to chain saws with catalytic converters Fuel HandlingFuel Fuelling Chain oilWarm engine Starting and StoppingStarting and stopping Cold engineStopping Carburettor MaintenanceTensioning the recoil spring Correctly adjusted carburettorStarter Changing a broken or worn starter cordFitting the starter Air ﬁlterSpark plug MufﬂerNeedle bearing lubrication Adjustment of the oil pumpCentrifugal cleaning Turbo When making adjustmentsElectrical carburettor heating CS 2156WH, CS 2159WH Temperature 0 C 32 F or colderTemperature -5C 23 F or colder Heated handles CS 2156W, CS 2159WBelow 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 Your Warranty Rights and Obligations Federal Emission Control Warranty Statement1088891-95