Husqvarna 55 EPA I manual Cutting equipment, Vibration damping system, Stop switch, Muffler

Page 10

GENERAL SAFETY PRECAUTIONS

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.

Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conifers). Cutting with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level.

WARNING! Overexposure to vibration can

!lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists. These symptoms may be increased in cold temperatures.

Stop switch

Use the stop switch to switch off the engine.

Muffler

The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user.

WARNING! The exhaust fumes from the

!engine are hot and may contain sparks which can start a fire. Never start the machine indoors or near combustible material!

In areas with a hot, dry climate there is a high risk of fires. These areas are sometimes subject to government rules requiring among other things the muffler must be equipped with an approved type of spark arrestor mesh.

For mufflers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety equipment.

CAUTION! The muffler gets very hot during and after use. This also applies during idling. Be aware of the fire hazard, especially when working near flammable substances and/ or vapours.

WARNING! Never use a saw without a

!muffler, or with a damaged muffler. A damaged muffler may substantially increase the noise level and the fire hazard. Keep fire fighting equipment handy. If a spark arrestor screen is required in your area, never use the saw without or with a broken spark arrestor screen.

Cutting equipment

This section describes how to choose and maintain your cutting equipment in order to:

Reduce the risk of kickback.

Reduce the risk of the saw chain breaking or jumping off the bar.

Obtain optimal cutting performance.

Extend the life of cutting equipment.

Avoid increasing vibration levels.

10 – English

Image 10
Contents Operator’s manual 55 EPA Symbols on the machine KEY to SymbolsSymbols in the operator’s manual Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Chain catcher Throttle lockRight hand guard Vibration damping system Stop switchCutting equipment MufflerBar General rulesCutting equipment designed to reduce kickback ChainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingSharpening cutting teeth Adjustment of depth gauge setting General advice on adjusting depth gauge settingTensioning the chain Filling with chain oil Lubricating cutting equipmentChain oil Checking chain lubricationNeedle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Assembly Fitting the bar and chainFuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageCold engine Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules General Basic cutting techniqueTerms Limbing CuttingFelling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatFelling Directional cutsFreeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting trees and branches that are in tensionWhat is kickback? How to avoid kickbackCutting the trunk into logs Carburetor adjustment MaintenanceGeneral Checking the front hand guard Correctly adjusted carburetorChecking brake band wear Checking the inertia brake releaseThrottle lock Starter MufflerChanging a broken or worn starter cord Changing a broken recoil spring Air filterTensioning the recoil spring Fitting the starterNeedle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling systemTemperature 0C 32F or colder Winter useMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gauges Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions´z+R7y¶5m¨ Page 1150238-95 ´z+R7y¶5m¨ ´z+R7y¶5m¨