Jonsered CS 2156 manual Cutting equipment designed to minimise kickback, Bar, Chain

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SAFETY INSTRUCTIONS

Cutting equipment designed to minimise kickback

WARNING! Faulty cutting equipment or the

!wrong combination of bar and chain increases the risk of kickback! Use only the bar and chain combinations that we recommend. See the Technical data section.

The only way to avoid kickback is to make sure that the kickback zone of the bar never touches anything.

By using cutting equipment with ”built-in” kickback reduction and keeping the chain sharp and well-maintained you can reduce the effects of kickback.

Bar

The smaller the tip radius the smaller the kickback zone and the lower the chance of kickback.

Chain

A chain is made up of a number of links, which are available in standard and low-kickback versions.

None

Standard

Low-kickback

Cutting link

Drive link

Side link

Combining these links in different ways gives different degrees of kickback reduction. In terms of kickback reduction alone, four different types of link are available.

Level of
kickback	Cutting link Drive link	Side link
reduction
Low
Standard
High
Extra high

Some terms that describe the bar and chain

When the cutting equipment supplied with your saw becomes worn or damaged you must replace it with one of the bars and chains recommended by us. See the Technical data section.

Bar

•Length (inches/cm)

•Number of teeth on bar tip sprocket (T). Small number = small tip radius = low risk of kickback.

•Chain pitch (inches). The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket.

•Number of drive links. The number of drive links is determined by the length of the bar, the chain pitch and the number of teeth on the bar tip sprocket.

•Bar groove width (inches/mm). The groove in the bar must match the width of the chain drive links.

•Chain oil hole and hole for chain tensioner. The bar must be matched to the chain saw design.

Chain

•Chain pitch (inches)

•Drive link width (mm/inches)

•Number of drive links.

English – 11

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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