Reduced-KickbackGuideBar,designed withasmallradiustipwhichreducesthe sizeofthekickbackdangerzone on the

bar tip. A Reduced-Kickback Guide Bar has been demonstrated to significantly re- duce the number and seriousness of kick- becks when tested in accordance with

safety requirements for gasoline powered chain saws as set by ANSI B175.1

ReducedKickback SymrnetricalGuide Bar

all RadiusTip

,tt _____._A

 

dnI_W/-_I-(NIN£_:

WE DO NOT REP-

RESENT AND YOU SHOULD NOT AS- SUME THAT THE CHAIN BRAKE WILL PROTECT YOU IN THE EVENT OFA KICK-

BACK. Kickback is a lightning fast action 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 tile danger zone wifh any hard object Kickback can also be caused by pinching the saw chain along the top of the guide baE This action may 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

Symrnetrica_

Guide Bar

_.,._

Large Radius Tip

Low-Kickback Chain, designed with a

contoured depth gauge and guard link which dedect 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

KICKBACK. Reduced-kickback guide bars

and low-kickback sew 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.

_p contact in some cases may cause a light- ning fast reverse REACTION, kicking guide bar up end back toward operator.

Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back toward the operator

Either of these reactions may cause you to lose control of the saw which could result in

serious injury. Do not rely excIusively upon devices buiif into your saw.

Chain

to gradualJy ride

 

_ntocutter

_ %X _C an ObstructMatelial

N_ a LOW Kickback Chain

Front Hand Guard, designed to reduce the chance of your Ieft hand contacting the chain if your hand slips off the front handlebar.

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

CHAIN BRAKE AND CKA ANGLE

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

,_ WARNING: Computed kickback

angle (CKA) listedon 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 (Cana- dian Standards Association) and ANSI stan- dards. When purchasing replacement bar and chain, considerations should be given to the lower CKA values Lower CKA values repre- sent safer angles to the user. higher values in- dicate more angle and higher kick energies Computed angles represented indicate 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 break and resulting kick angle of saw. in all cases lower CKA val-

ues represent a safer operaffng environment for the user.

The following guide bar and chain combina- tions meet kickback requirements of CSA Standards Z62.f, 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 OKA requirements per standard.

Page 5
Image 5
Poulan 2150PR, 1975, 2155 instruction manual WE do not REP, Chain Brake and CKA Angle

2150PR, 2155, 1975 specifications

The Poulan 2155, introduced in the mid-1970s, stands as a notable model in the brand's legacy of reliable chainsaws. This particular model is representative of the advancements in chainsaw technology during that era, emphasizing user-friendly features and performance efficiency. The Poulan 2155 is powered by a robust 3.1 cubic inch engine, delivering ample power for a variety of cutting tasks. With a maximum power output of approximately 2.1 horsepower, this chainsaw can tackle both light-duty and medium-duty jobs with ease.

One of the key features of the Poulan 2155 is its lightweight design, which enhances maneuverability and reduces user fatigue during prolonged use. Weighing in at around 10 pounds, this model strikes a good balance between power and portability, making it an ideal choice for homeowners and occasional users alike. Additionally, the chainsaw's compact form factor allows for easier handling in tight spaces, such as when trimming branches or clearing brush.

The Poulan 2155 also boasts a unique easy-start mechanism, which was innovative for its time. This feature ensures that the chainsaw can be started with minimal effort, allowing users to get to work without the frustration often associated with starting traditional two-stroke engines. Combined with a simple ignition system, the Poulan 2155 encourages a smooth startup, even after periods of inactivity.

In terms of safety, the model includes a chain brake that halts the chain’s movement in the event of kickback, providing an additional layer of protection for the operator. Poulan’s consideration for safety features marked a shift toward enhanced user security in chainsaw design during the 1970s.

The Poulan 2150PR, another important model from that era, shares many similarities with the 2155. Both models incorporate durable construction and high-quality materials, ensuring longevity and reliable performance. The 2150PR is also characterized by an easy-access air filter, promoting improved maintenance and consistent engine performance over time.

The Poulan 2155 and 2150PR exemplify the evolution of chainsaw technology in the 1970s, merging user convenience with robust performance capability. Collectively, they represent a commitment to providing reliable, user-friendly tools that cater to both the casual user and the serious hobbyist, solidifying Poulan's reputation in the power equipment industry.