Jonsered CS 2147 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)

10 – English

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Contents Operator′s manual KEY to Symbols Key to symbolsContents Machine′s safety equipment Safety InstructionsPersonal protective equipment Chain brake and hand guard Chain catcher Stop switchThrottle lock Right hand guardChecking brake band wear MufﬂerChecking the hand guard Throttle lock Checking the inertia brake releaseChecking the brake trigger Chain catcherGeneral rules Stop switchCutting equipment Vibration damping systemChain Cutting equipment designed to minimise kickbackBar Some terms that describe the bar and chainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting raker clearanceWith a badly sharpened chain Tensioning the chain General advice on setting raker clearanceSetting the raker clearance Sharpening cutting teethFilling with chain oil Lubricating cutting equipmentChain oil Checking chain lubricationChecking wear on cutting equipment Lubricating the bar tip sprocketNeedle bearing lubrication Chain drive sprocketWhat is kickback? How to avoid kickbackDo not let go of the handles General safety precautions Fuel safety StartingGeneral working instructions Basic safety rulesTransport and storage Terms Basic cutting techniqueGeneral CuttingSafe distance Tree felling techniqueLimbing Felling directionDirectional cuts Clearing the trunk and preparing your retreatFelling Felling cutCutting the trunk into logs Freeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting trees and branches that are in tensionWhat is WHAT? What is what on the chain saw?Fitting a spike bumper AssemblyFitting the bar and chain Working with the chainFuel Fuel HandlingFollowing applies to chain saws with catalytic converters Chain oil FuellingCold engine Starting and StoppingStarting and stopping Warm engineStopping Maintenance CarburettorStarter Fine adjustment of the idle speed TCorrectly adjusted carburettor High speed jet HTensioning the recoil spring Air ﬁlterSpark plug Changing a broken recoil springMufﬂer Adjustment of the oil pumpWhen making adjustments Needle bearing lubricationElectrical carburettor heating CS 2147WH, CS 2152WH Centrifugal cleaning TurboHeated handles CS 2147W, CS 2152W Winter useMonthly maintenance Daily maintenanceWeekly maintenance Below you will ﬁnd some general maintenance instructionsTechnical Data Technical dataBar and chain combinations Applies to Europe only EC-declaration of conformityCispr 121997, EN608 Page 1088890-26