Poulan 545123644 Kickback Safety Features, Chain Brake and CKA Angle, Back toward the operator

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KICKBACK SAFETY FEATURES

WARNING: The following features are included on your saw to help reduce the hazard of kickback; however, such features will not totally eliminate this danger. As a chain saw user, do not rely only on safety de- vices. You must follow all safety precau- tions, instructions, and maintenance in this manual to help avoid kickback and other forces which can result in serious injury.

SReduced--Kickback Guide Bar, designed with a small radius tip which reduces the size of the kickback danger zone on the bar tip. A Reduced--Kickback Guide Bar has been demonstrated to significantly re- duce the number and seriousness of kick- backs when tested in accordance with safety requirements for gasoline powered chain saws as set by ANSI B175.1.

Reduced Kickback Symmetrical Guide Bar

Small Radius Tip

Symmetrical Guide Bar

Large Radius Tip

S Low--Kickback Chain, designed with a contoured depth gauge and guard link which deflect kickback force and allow wood to gradually ride into the cutter. Low-- Kickback Chain has met kickback per- formance requirements when tested on a representative sample of chain saws be- low 3.8 cubic inch displacement specified in ANSI B175.1.

Contoured Depth Gauge

 

Elongated Guard Link

 

Deflects

Low--- Kickback

kickback force

and allows wood

Chain

to gradually ride

 

Into cutter

 

Can Obstruct Material

Not a Low--- Kickback Chain

SFront Hand Guard, designed to reduce the

chance of your left hand contacting the chain if your hand slips off the front handlebar.

SPosition of front and rear handlebars, de- signed with distance between handles and “in-line” with each other. The spread and “in-line” position of the hands provided by this design work together to give balance and resistance in controlling the pivot of the saw back toward the operator if kick- back occurs.

CHAIN BRAKE AND CKA ANGLE

SChain Brake, designed to stop the chain in the event of kickback.

WARNING: WE DO NOT REP- RESENT AND YOU SHOULD NOT AS- SUME THAT THE CHAIN BRAKE WILL PROTECT YOU IN THE EVENT OF A KICKBACK. Kickback is a lightning fast ac- tion which throws the bar and rotating chain back and up toward the operator. Kickback can be caused by allowing contact of the bar tip in the danger zone with any hard object. Kickback can also be caused by pinching the saw chain along the top of the guide bar. This action may push the guide bar rapidly back toward the operator. Either of these events may cause you to lose control of the saw which could result in serious injury or even death. DO NOT RELY UPON ANY OF THE DEVICES BUILT INTO YOUR SAW. YOU SHOULD USE THE SAW PROPERLY AND CAREFULLY TO AVOID KICKBACK. Re- duced--kickback guide bars and low--kick- back saw chains reduce the chance and magnitude of kickback and are recom- mended. Your saw has a low kickback chain and bar as original equipment. Repairs on a chain brake should be made by an autho- rized servicing dealer. Take your unit to the place of purchase if purchased from a ser- vicing dealer, or to the nearest authorized master service dealer.

STip contact in some cases may cause a light- ning fast reverse REACTION, kicking the

guide bar up and back toward the operator.

SPinching the saw chain along the top of the guide bar may push the guide bar rapidly

back toward the operator.

SEither of these reactions may cause you to lose control of the saw which could result in serious injury.Do not rely exclusively upon the safety devices built into your saw.

WARNING: Computed kickback angle (CKA) listed on your saw and listed in the CKA table below represents angle of kickback your bar and chain combinations will have when tested in accordance with CSA and ANSI standards. When purchasing replacement bar and chain, considerations should be given to the lower CKA values. Lower CKA values represent safer angles to the user, higher values indicate more angle and higher kick energies. Computed angles represented in the non-activated column in- dicate total energy and angle associated without activation of the chain brake during kickback. Activated angle represents chain stopping time relative to activation angle of chain brake and resulting kick angle of saw. In all cases lower CKA values represent a safer operating environment for the user.

The following guide bar and chain combina- tions meet kickback requirements of CSA Z62.1, Z62.3, & ANSI B175.1 when used on saws listed in this manual. Use of bar and chain combinations other than those listed is not recommended and may not meet the CKA requirements per standard.

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Contents 545123644 EnglishEspañol Français Safety Rules Identification of SymbolsStarting Reminder Plan AheadMaintain Your SAW in Good Working Order Operate Your SAW SafelyHandle Fuel with Caution KickbackKickback Path Avoid Obstructions Clear Working Area Maintain ControlReduce the Chance of Kickback Chain Brake and CKA Angle Kickback Safety FeaturesGuide bar up and back toward the operator Back toward the operatorAdjusting Screw Tensioning Rack AssemblyComputed kickback angle CKA Table LengthMount the Bar Adjusting the tensionChecking the tension Know Your SAW ON/STOP SwitchThrottle Trigger Throttle LockoutFueling Engine StartingBAR and Chain Lubrication Important Points to RememberImportant Points Cutting MethodsStarting a Warm Engine Notch CUT and Felling the Tree Tree Felling TechniquesFelling Large Trees Cutting a Fallen Tree Bucking Using a LOG or Support StandTypes of Cutting Used for Bucking Bucking Without a SupportLimbing and Pruning Important Points ServiceLimbing PruningCleaning the Spark ARREST- ING Screen Cleaning the air filterAIR Filter Inspect Muffler and Spark Arresting ScreenBAR Maintenance Carburetor AdjustmentChain Sharpening Ignition TimingNeed Service PART? Limited WarrantyNeed ASSISTANCE? Need ASSISTANCE?Tions The U.S. Environmental Protection Your Warranty Rights and ObligaIntermediate 125 hours Extended 300 hours

545123644 specifications

The Poulan 545123644 is a powerful chainsaw designed to meet the needs of homeowners and light commercial users. Known for its reliability and ease of use, this chainsaw has become a popular choice for those looking to tackle various cutting tasks efficiently. With a focus on performance, the Poulan 545123644 features a robust engine that delivers exceptional power. Equipped with a 50cc two-stroke gasoline engine, it offers a balance of torque and RPM, making it ideal for felling trees, limb removal, and cutting firewood.

One of the standout features of the Poulan 545123644 is its lightweight design, which enhances maneuverability and reduces operator fatigue during extended use. Weighing in at just over 11 pounds, it allows users to manage their cutting tasks with ease. The chainsaw also incorporates an ergonomic handle that ensures a comfortable grip, promoting better control while operating.

The chainsaw's 20-inch bar length provides ample reach for cutting larger logs and branches without excessive effort. It also comes equipped with a low-kickback chain, which enhances safety by minimizing the risk of kickback incidents—a common concern for chainsaw users. This feature is particularly important for both novice and experienced operators.

To further enhance performance, the Poulan 545123644 utilizes advanced technologies such as an automatic oiling system, ensuring the chain receives the lubrication it needs for smooth operation. This not only prolongs the lifespan of the chain but also reduces maintenance, allowing users to focus on their cutting tasks.

Another noteworthy aspect of the Poulan chainsaw is its easy-start mechanism, which utilizes a spring-assisted pull starter. This innovation significantly reduces the effort required to start the engine, making it user-friendly, particularly for those who may struggle with traditional starting methods.

In terms of durability, the Poulan 545123644 features a rugged construction that withstands the rigors of regular use, ensuring longevity. Its air filtration system also helps to extend engine life by keeping dust and debris out of the engine.

Overall, the Poulan 545123644 combines power, safety, and ease of use, making it an excellent choice for those looking to tackle outdoor projects with confidence. Whether you are pruning trees or preparing firewood for winter, this chainsaw delivers reliability and performance, ensuring that you can complete your tasks efficiently.
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