Jonsered CS 2171WH manual Basic cutting technique, General, Terms

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SAFETY INSTRUCTIONS

Take great care when removing small branches and avoid cutting bushes (i.e. cutting many small branches at the same time). Small branches can be grabbed by the chain and thrown back at you, causing serious injury.

Make sure you can move and stand safely. Check the area around you for possible obstacles (roots, rocks, branches, ditches, etc.) in case you have to move suddenly. Take great care when working on sloping ground.

Take the utmost care when cutting through branches or logs that are in tension. A log or branch that is in tension can suddenly spring back into its natural position before or after you cut it. If you stand on the wrong side or start cutting in the wrong place it may strike you or your chain saw, so that you lose control. Both situations could cause serious injury.

Before moving your chain saw switch off the engine and lock the chain using the chain brake. Carry the chain saw with the bar and chain pointing backwards. Fit a guard to the bar before transporting the chain saw or carrying it for any distance.

Never put a chain saw down while the engine is running unless you have it in clear view and the chain brake is on. Switch the engine off before leaving your chain saw for any length of time.

Basic cutting technique

WARNING! Never use a chain saw by holding

!it with one hand. A chain saw is not safely controlled with one hand; you can cut yourself. Always have a secure, firm grip around the handles with both hands.

General

Always use full throttle when cutting!

Reduce the speed to idle after every cut (running the engine for too long at full throttle without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage).

Cutting from above = Cutting on the pull stroke.

Cutting from below = Cutting on the push stroke.

Cutting on the push stroke increases the risk of kickback. See instructions under the heading How to avoid kickback.

Terms

Cutting = General term for cutting through wood.

Limbing = Cutting branches off a felled tree.

Splitting = When the object you are cutting breaks off before the cut is complete.

There are five important factors you should consider before making a cut:

1 Make sure the cutting equipment will not jam in the cut.

2 Make sure the object you are cutting will not split.

3Make sure the chain will not strike the ground or any other object during or after cutting.

4 Is there a risk of kickback?

5Do the conditions and surrounding terrain affect how safely you can stand and move about?

18 – English

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Contents Operator´s manual KEY to Symbols Key to symbolsContents Safety Instructions Machine′s safety equipmentPersonal 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 storageBasic cutting technique GeneralTerms 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 oilChain oil FuellingMin 3 m 10ft Cold engine Starting and StoppingStarting and stopping Warm engineStopping Maintenance Carburettor adjustmentCarburettor 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 heatingDaily maintenance Weekly maintenance Monthly maintenanceBelow you will find some general maintenance instructions Technical Data Technical dataBar and chain combinations Bar ChainLength, inches Pitch, inch Max. number of teeth on EC-declaration of conformity Applies to Europe onlyEN292-2, Cispr 121997, EN608 Page 1088935-26 ´z*xT¶6U¨ ´z*xT¶6U¨