Jonsered CS 2171WH manual Sharpening your chain and adjusting raker clearance, Chain

Page 10

SAFETY INSTRUCTIONS

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.

•Level of kickback reduction. The level of kickback reduction offered by a chain is only indicated by its model number. See the Technical data section to find the model numbers of chains that are recommended for use with your model of chain saw.

Sharpening your chain and adjusting raker clearance

WARNING! The risk of kickback is increased

!with a badly sharpened chain!

General information on sharpening cutting teeth

•Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all. Wood powder would be the only result.

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 front hand guard Chain catcher Stop switchThrottle lock Right hand guardChecking the front hand guard MufflerChecking brake band wear Checking the inertia brake releaseChain catcher Stop switchThrottle lock Right hand guardCutting equipment designed to minimise kickback Cutting equipmentGeneral rules MufflerSome terms that describe the bar and chain Sharpening your chain and adjusting raker clearanceChain General information on sharpening cutting teethSharpening cutting teeth Tensioning the chain General advice on setting raker clearanceSetting the raker clearance If the raker clearance is too largeLubricating cutting equipment Checking wear on cutting equipment How to avoid kickbackWhat is kickback? Chain drive sprocketDo not let go of the handles General safety precautions StartingGeneral working instructions Fuel safetyBasic safety rules Transport and storageGeneral Basic cutting techniqueTerms Cutting LimbingFelling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatCutting the trunk into logs Felling cutFreeing 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 chainPetrol Fuel HandlingFuel Two-stroke oilFuelling Chain oilMin 3 m 10ft Cold engine Starting and StoppingStarting and stopping Warm engineStopping Carburettor adjustment MaintenanceCarburettor with movement limiters Carburettor without movement limiters Fine adjustment of the idle speed TCorrectly adjusted carburettor Low speed jet LRecommended engine speeds are as follows Idle speed, rpmStarter Air filterSpark plug Adjustment of the oil pumpWhen making adjustments MufflerHeated handles Centrifugal cleaning TurboCooling system Electrical carburettor heatingMonthly maintenance Daily maintenance Weekly maintenanceBelow you will find some general maintenance instructions Technical Data Technical dataBar Chain Bar and chain combinationsLength, inches Pitch, inch Max. number of teeth on Applies to Europe only EC-declaration of conformityEN292-2, Cispr 121997, EN608 Page 1088935-26 ´z*xT¶6U¨ ´z*xT¶6U¨
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