Poulan 530086536 Chain Brake, Computed kickback angle CKA Table, Model BAR Chain P/N, CKA without

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Symmetrical Guide Bar

Large Radius Tip

SLow-Kickback Chain, designed with a con- toured depth gauge and guard link which de- flect kickback force and allow wood to gradu- ally ride into the cutter. Low-Kickback Chain has met kickback performance require- ments when tested on a representative sam- ple of chain saws below 3.8 cubic inch displacement specified in ANSI B175.1.

Contoured Depth Gauge Elongated Guard Link

Deflects kickback force and allows

wood to gradually

Low--Kickbackride into cutter Chain

Can Obstruct

Material

Not a Low--Kickback Chain

S Front Handguard, designed to reduce the chance of your left hand contacting the chain if your hand slips off the front handlebar.

S Position 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 re- sistance in controlling the pivot of the saw back toward the operator if kickback occurs.

CHAIN BRAKE

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.

S Tip contact in some cases may cause a lightning fast reverse REACTION, kicking guide bar up and back toward 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 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

 

MODEL

BAR

 

CHAIN P/N

CKA without

 

P/N

 

Length

chain brake

 

 

 

 

 

330

952044701

 

20!

952051266

21_

 

 

380

952044701

 

20!

952051266

21_

 

 

330

530044833

 

22!

952051459

23_

 

NOTE: If this saw is to be used for commer- cial logging, a chain brake is required and shall not be removed or otherwise disabled to com-

ply with Federal OSHA Regulations for Com- mercial Logging.

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Contents Manual de Instrucciones Manuel d’Instructions Tions found in this manual Plan AheadMaintain Your SAW in Good Working Order Operate Your SAW SafelyHandle Fuel with Caution KickbackReduce the Chance Kickback Kickback Safety FeaturesMaintain Control Avoid Obstructions Clear The Working AreaComputed kickback angle CKA Table Chain BrakeSymmetrical Guide Bar Large Radius Tip Model BAR Chain P/NAttaching the BAR & Chain If not Safety Notice Exposure toChecking the tension Adjusting the tensionFit chain drive links into bar groove Are in the bar grooveKnow Your SAW ON/STOP SwitchThrottle Trigger Throttle LOCK-OUTFueling Engine ON/STOP SwitchBAR and Chain Lubrication Important Points to RememberDifficult Starting or starting a flooded engine Starting a Warm EngineBraking function control Caution The chain brake must be Inertia activating function controlFelling Large Trees Tree Felling TechniquesEngine CutCutting a Fallen Tree Bucking Using a LOG or SUP- Port StandTypes of Cutting Used for Bucking Bucking Without a SupportLimbing Limbing and Pruning Important PointsPruning AIR FilterCarburetor Adjustments Cleaning the Spark ARREST- ING ScreenBAR Maintenance Inspect Muffler and Spark Arresting ScreenTrouble Cause Remedy Need a Service PART?Need ASSISTANCE? Ligations The U. S. Environmental Your Warranty Rights and OB