Husqvarna 51 manual HOW to Avoid Kickback, What is kickback?

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SAFETY INSTRUCTIONS

H Bar

Check regularly:

•Whether there are burrs on the edges of the bar. Remove these with a file if necessary.

•Whether the groove in the bar has become badly worn. Replace the bar if necessary.

• Whether the tip of the bar is uneven or badly worn. If a hollow forms on one side of the bar tip this is due to a slack chain.

•To prolong the life of the bar you should turn it over daily.

MOST CHAIN SAW ACCIDENTS HAPPEN

WHEN THE CHAIN TOUCHES THE

OPERATOR.

•WEAR PERSONAL PROTECTIVE EQUIPMENT (see the section on ”Chain saw safety equipment”).

•DO NOT TACKLE ANY JOB YOU ARE UNSURE OF (see the section on ”Personal protective equipment”, ”How to avoid kickback”, ”General working instructions” and ”Cutting equipment”).

•AVOID SITUATIONS WHERE THERE IS A RISK OF KICKBACK (see the section on ”Personal protective equipment”).

•USE THE RECOMMENDED PROTECTIVE EQUIPMENT AND CHECK ITS CONDITION (see section on ”General working instructions”).

•CHECK THAT ALL SAFETY FUNCTIONS ARE WORKING (see section on ”General working instructions” and ”General safety precautions”).

HOW TO AVOID KICKBACK

Kickback can happen very suddenly and violently; kicking the saw, bar and chain back at the user. If this happens when the chain is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.

What is kickback?

The word kickback is used to describe the sudden reaction that happens when the upper quadrant of the tip of the bar (known as the “kickback zone”) touches an object and the saw is kicked backwards.

Kickback always occurs in the cutting plane of the saw. Normally the saw and bar are thrown backwards and upwards towards the user. However the saw may move in a different direction depending on the way it was being used when the kickback zone of the bar touched the object.

Kickback only occurs if the kickback zone of the bar touches an object.

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Contents 51/55 101 91KEY to Symbols SymbolsContents Chain SAW Safety Equipment Safety InstructionsPersonal Protective Equipment Chain brake and front hand guard Chain catcher Throttle lockRight hand guard Vibration damping system Stop switchMuffler Checking brake band wear Checking the front hand guardChecking the inertia brake release Checking the brake triggerThrottle lock Cutting Equipment 5 basic rulesCutting equipment designed to minimise kickback BarSaw chain Some terms that describe the bar and chainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting raker clearanceSharpening cutting teeth Setting the raker clearance General advice on setting raker clearanceTensioning the chain Chain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubrication Lubricating the clutch drum bearingChecking wear on cutting equipment Lubricating the bar tip sprocketHOW to Avoid Kickback What is kickback?General rules Do not let go of the handlesMin m General Safety Precautions10 ft Basic safety rules General Working InstructionsBasic cutting technique GeneralTerms CuttingTree felling technique Safe distanceLimbing Felling directionClearing the trunk and preparing your retreat FellingFreeing a tree that has fallen badly = high accident risk Cutting the trunk into logsFreeing a Trapped tree Cutting trees and branches that are in tension PreparationsWhat is WHAT? Assembly Mounting guide bar and chainFuel Handling FuelmixMin 3 m Fuelling10ft Start and Stop StartStop Cold engineMaintenance CarburetorStarter device assembly Starter deviceChanging a broken or worn starter cord Tensioning the recoil springNeedle bearing maintenance Air filterMuffler Spark plugCentrifugal cleaning Air Injection Temperature 0C or colderTemperature -5C or colder Cooling systemWeekly maintenance Daily maintenance Monthly maintenanceTechnical Data Emission Control Warranty Statement Your Warranty Rights Obligations2001W07

51 specifications

The Husqvarna 51 is a well-regarded chainsaw that has made its mark in the world of outdoor power equipment. Renowned for its balance of performance and usability, the Husqvarna 51 is often favored by both amateur woodcutters and professionals alike. This versatile chainsaw is designed for a range of tasks, from light-duty pruning to more demanding woodcutting jobs.

One of the standout features of the Husqvarna 51 is its powerful 2.3 horsepower engine. This robust engine allows the saw to tackle larger cuts with ease, making it a reliable tool for any woodcutting needs. Coupled with a lightweight design, the chainsaw ensures reduced fatigue during prolonged use, enhancing user comfort and efficiency.

The Husqvarna 51 utilizes a simple yet effective starting system known as the Smart Start technology. This feature minimizes resistance in the starter cord, allowing for easier and quicker engine starts. Consequently, even less experienced users can confidently get the saw up and running without unnecessary frustration.

Another important characteristic of this model is its air injection system. This technology works by using centrifugal force to remove larger debris from the air filter before it reaches the engine. As a result, the filter stays cleaner for longer, reducing the frequency of maintenance and ensuring optimal engine performance. This system significantly prolongs the life of the chainsaw while maintaining high power levels.

The Husqvarna 51 also features an adjustable oil pump that allows operators to control oil flow as needed. This ensures proper lubrication of the chain and bar, which is critical for maintaining performance and extending the lifespan of the cutting components. The saw’s chrome-plated cylinder further contributes to durability by providing an added layer of resistance against wear and tear.

Safety is a priority with the Husqvarna 51, which comes equipped with an inertia-activated chain brake. This feature automatically stops the chain in the event of kickback, providing additional peace of mind to the user. The front hand guard and ergonomic handle design also enhance user control, contributing to a safer and more comfortable cutting experience.

Overall, the Husqvarna 51 stands out as a reliable, sturdy, and user-friendly chainsaw. Its blend of power, technology, and safety features makes it an ideal choice for a variety of cutting tasks, making it popular among both casual users and seasoned professionals. Whether you are trimming branches or cutting firewood, this chainsaw offers the performance you need for effective woodcutting.
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