Poulan 545123649 Chain Brake and CKA Angle, Computed kickback angle CKA Table, SM4018, 952051548

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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.

Computed kickback angle (CKA) Table

 

BAR

 

 

 

MODEL

P/N

 

Length

CHAIN P/N

CKA without chain brake

SM4018

952044418

 

18″

952051548

14_

NOTE: If this saw is to be used for commer-

SAFETY NOTICE: Exposure to vibrations

cial logging, a chain brake is required and shall

through prolonged use of gasoline powered

not be removed or otherwise disabled to com-

hand tools could cause blood vessel or nerve

ply with Federal OSHA Regulations for Com-

damage in the fingers, hands, and joints of

mercial Logging.

 

 

 

people prone to circulation disorders or

 

 

 

 

abnormal swellings. Prolonged use in cold

 

 

 

 

weather has

been linked to blood vessel

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Contents 545123649 8/25/06 Manual de Instrucciones Manuel d’InstructionsPlan Ahead Identification of SymbolsSafety Rules Maintain Your SAW in Good Working Order Operate Your SAW SafelyHandle Fuel with Caution KickbackReduce the Chance of Kickback Kickback Safety FeaturesMaintain Control Avoid Obstructions Clear The Working AreaComputed kickback angle CKA Table Chain Brake and CKA AngleCKA without chain brake SM4018Inside view Chain Brake Adjustment located on Chain Brake AssemblyAttaching the BAR & Chain If not Already attachedDrive Links Place chain onto the sprocket Adjusting the tensionCutters Know Your SAW ON/STOP SwitchThrottle Trigger Throttle LockoutFueling Engine StartingBAR and Chain Lubrication Important Points to RememberImportant Points Cutting MethodsStarting a Warm Engine Felling Large Trees Tree Felling TechniquesNotch CUT and Felling the Tree Ger than 30 seconds at full throttleCutting a Fallen Tree Bucking Using a LOG or Support StandTypes of Cutting Used for Bucking Bucking Without a SupportPruning ServiceLimbing and Pruning Important Points LimbingCleaning the Spark ARREST- ING Screen Cleaning the air filterCarburetor Adjustment Inspect Muffler and Spark Arresting ScreenNeed ASSISTANCE? Empty fuel tank and refill with Limited WarrantyLoad Adjustment Engine Tions The U.S. Environmental Protection Your Warranty Rights and ObligaIntermediate 125 hours Extended 300 hours

SM4018, 545123649 specifications

The Poulan 545123649 SM4018 chainsaw is a powerful tool designed for both professionals and homeowners who require a reliable and efficient cutting solution for their outdoor tasks. Recognized for its robust design and advanced features, this chainsaw is ideal for felling trees, limbing, and cutting firewood.

One of the main features of the SM4018 is its 40cc engine, which provides ample power for cutting through even the toughest wood. With a high-performance engine, users can expect quick acceleration and reduced emissions, making it an environmentally friendly option. The powerful engine ensures that the chainsaw delivers consistent performance over extended periods, ideal for demanding projects.

Another standout characteristic of the Poulan 545123649 is its 18-inch bar and chain. This length strikes a perfect balance, allowing users to tackle both small and sizable tasks with ease. The chain is precision-engineered to deliver smooth and efficient cutting, helping users achieve their desired results with minimal effort.

The chainsaw is equipped with an automatic lubrication system, which continually oils the chain during operation. This feature significantly reduces wear and tear, prolonging the life of both the chain and the bar. Furthermore, the convenient oil reservoir is easily accessible, allowing for quick refills when necessary.

Comfort and usability are top priorities in the design of the SM4018. The chainsaw features an ergonomic handle with anti-vibration technology, which reduces user fatigue during prolonged use. This makes it a suitable tool for both novice users and seasoned professionals who need to work for extended periods without discomfort.

Safety is paramount when operating any power tool, and the Poulan SM4018 doesn’t fall short in this regard. It comes equipped with a chain brake system that stops the chain immediately in case of kickback, protecting the user from potential injuries. Additionally, the easy-access air filter ensures that the engine remains clean, maximizing its performance and longevity.

Overall, the Poulan 545123649 SM4018 chainsaw combines power, precision, and safety to deliver an exceptional cutting experience. With its advanced features and user-friendly design, it is a reliable choice for anyone looking to invest in a high-quality chainsaw for their outdoor needs.
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