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

push the guide bar rapidly back toward the op- erator. 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. Reduced--kickback guide bars and low--kickback saw chains reduce the chance and magnitude of kickback and are recommended. 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 servic- ing dealer, or to the nearest authorized master service dealer.

STip contact in some cases may cause a light- ning 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 devices built into your saw.

 

 

 

Can Obstruct Material

WARNING:

Computed

kickback

 

Not a Low--- Kickback Chain

 

S

Front Hand Guard, designed to reduce the

angle (CKA) listed on your saw and listed in the

CKA table below represents angle of kickback

 

chance of your left hand contacting the chain

 

your bar and chain

combinations

will have

 

if your hand slips off the front handlebar.

 

when tested in accordance with CSA (Cana-

S

Position of front and rear handlebars, de-

dian Standards Association) and ANSI stan-

 

signed with distance between handles and

 

dards. When purchasing replacement bar and

 

“in-line” with each other. The spread and

 

chain, considerations should be given to the

 

“in-line” position of the hands provided by

 

lower CKA values. Lower CKA values repre-

 

this design work together to give balance

 

sent safer angles to the user, higher values in-

 

and resistance in controlling the pivot of

 

dicate more angle and higher kick energies.

 

the saw back toward the operator if kick-

 

Computed angles represented indicate total

 

back occurs.

 

 

 

 

 

 

 

energy and angle associated without activation

CHAIN BRAKE AND CKA ANGLE

of the chain brake during kickback. Activated

S Chain Brake, designed to stop the chain in

angle represents chain stopping time relative to

 

the event of kickback.

 

 

 

activation angle of chain break and resulting

 

WARNING: WE DO NOT REP-

kick angle of saw. In all cases lower CKA val-

 

ues represent a safer operating environment

RESENT AND YOU SHOULD NOT AS-

for the user.

 

 

SUME THAT THE CHAIN BRAKE WILL

The following guide bar and chain combina-

PROTECT YOU IN THE EVENT OF A KICK-

tions meet kickback requirements of CSA

BACK. Kickback

is a lightning fast action

Standards Z62.1, Z62.3, & ANSI B175.1

which throws the bar and rotating chain back

when used on saws listed in this manual.

and up toward the operator. Kickback can be

Use of bar and chain combinations other

caused by allowing contact of the bar tip in the

than those listed is not recommended and

danger zone with any hard object. Kickback

may not meet the CKA requirements per

can also be caused by pinching the saw chain

standard.

 

 

along the top of the guide bar. This action may

 

 

 

 

Computed kickback angle (CKA) Table

 

 

 

 

 

BAR

 

 

CKA without chain brake

 

MODEL

 

P/N

Length

CHAIN P/N

 

PPB3416

 

952044369

16

952051211

 

33_

 

 

PPB4218

 

952044689

18

952051338

 

33_

 

NOTE: If this saw is to be used for com- mercial logging, a chain brake is required and shall not be removed or otherwise dis- abled to comply with Federal OSHA Regula- tions for Commercial Logging.

SAFETY NOTICE: Exposure to vibrations through prolonged use of gasoline powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and joints of people prone to circulation disorders or abnormal swellings. Prolonged use in cold

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Poulan 530165399-1 Chain Brake and CKA Angle, Resent and YOU should not AS, Sume That the Chain Brake will