Jonsered CS 2153 Throttle lockout, Chain catcher, Right hand guard, Vibration damping system

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GENERAL SAFETY PRECAUTIONS

Will my hand always activate the chain brake during a kickback?

No. It takes a certain force to move the hand guard forward. If your hand only lightly touches the front guard or slips over it, the force may not be enough to trigger the chain brake. You should also maintain a firm grip of the chain saw handles while working. If you do and experience a kickback, your hand may never leave the front handle and will not activate the chain brake, or the chain brake will only activate after the saw has swung around a considerable distance. In such instances, the chain brake might not have enough time to stop the saw chain before it touches you.

There are also certain positions in which your hand cannot reach the front hand guard to activate the chain brake; for example, when the saw chain is held in felling position.

Will my inetria activated chain brake always activate during kickback in the event of a kickback?

No. First your brake must be in working order. Testing the brake is simple, see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. We recommend you do before you begin each work session. Second the kickback must be strong enough to activate the chain brake. If the chain brake is too sensitive it would activate all the time which would be a nuisance.

Will my chain brake always protect me from injury in the event of a kickback?

No. First, the chain brake must be in working order to provide the intended protection. Second, it must be activated during the kickback as described above to stop the saw chain. Third, the chain brake may be activated but if the bar is too close to you the brake might not have enough time to slow down and stop the chain before the chain saw hits you.

Only you and proper working technique can eliminate kickback and its danger.

Throttle lockout

The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control

(B). When you release the handle the throttle control and the throttle lockout both move back to their original positions. This arrangement means that the throttle control is automatically locked at the idle setting.

Chain catcher

The chain catcher is designed to catch the chain if it snaps or jumps off. This should not happen if the chain is properly tensioned (see instructions under the heading Assembly) and if the bar and chain are properly serviced and maintained (see instructions under the heading General working instructions).

Right hand guard

Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle.

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier.

The machines vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machines handle unit. The body of the chain saw, including the cutting equipment, is insulated from the handles by vibration damping units.

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Contents Operator’s manual KEY to Symbols Symbols on the machineSymbols in the operator’s manual Contents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?General Safety Precautions Before using a new chain sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard General Safety Precautions Chain catcher Throttle lockoutRight hand guard Vibration damping systemCutting equipment Stop switchMuffler General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge settingIf the depth gauge setting is too large General advice on adjusting depth gauge settingSharpening cutting teeth Instructions considerably increases the risk of kickbackTensioning the chain Adjustment of depth gauge settingLubricating cutting equipment Chain oilChecking chain lubrication Filling with chain oilChain drive sprocket Needle bearing lubricationBar Fitting the bar and chain AssemblyFuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingCold engine Warm engineStopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules General Basic cutting techniqueTerms LimbingCutting Tree felling techniqueSafe distance Log is supported at one end. There is a high risk that itClearing the trunk and preparing your retreat Felling directionFelling Directional cutsFelling cut Freeing a tree that has fallen badly General adviceFreeing a trapped tree Cutting trees and branches that are in tensionHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral High speed jet H Correctly adjusted carburetorThrottle lockout Muffler StarterChanging a broken or worn starter cord Tensioning the recoil spring Air filterChanging a broken recoil spring Fitting the starterSpark plug Adjustment of the oil pumpLubricating the bar tip sprocket Needle bearing lubricationTemperature 0C 32F or colder Air Injection centrifugal cleaningWinter use Heated handlesDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinations050/1,3 mm 058/1,5 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw users American Standard Safety PrecautionsKickback safety precautions Other safety precautionsPage ´z+RI¶55¨ Page 1150419-95 ´z+RI¶55¨ ´z+RI¶55¨