CLEANING THE SPARK

ARRESTING SCREEN

Clean every 25 hours of operation or annually, whichever comes first.

Steel

Backplate

Muffler

Muffler

Bolts

Aluminum

Backplate Muffler

GasketBolt Cover Locknut

1.Loosen and remove the 3 cylinder cover screws. Remove the cylinder cover.

2.Pull off the spark plug boot.

3.Loosen and remove the locknut from the bolt cover. Remove the bolt cover.

4.Loosen and remove the 2 muffler bolts. Remove the muffler and backplates. No- tice the orientation of these parts for re- assembling.

5.Locate the 2 outlet cover screws on the muffler. Loosen and remove both screws. Remove the outlet cover and spark arresting screen.

BACK VIEW OF MUFFLER

Outlet Cover

Muffler

 

Screws

Spark Arresting

Screen

6.Clean the spark arresting screen with a wire brush. Replace screen if any wires are broken or screen is blocked after cleaning.

7.Reinstall spark arresting screen.

8.Reinstall outlet cover and 2 screws. En- sure outlet cover and both screws are re- installed correctly to prevent damage to the saw (see illustrations). The exhaust outlets must face the chain brake (bar side) of the saw.

Outlet Cover

Exhaust Outlets

Exhaust Outlets must face chain brake (bar side) of chain saw

9.Inspect the muffler gasket and replace if damaged.

10.Reinstall backplates, muffler gasket and muffler using muffler bolts. TIghten until secure.

11.Reinstall bolt cover and locknut.

12.Reinstall the spark plug boot.

13.Reinstall the cylinder cover and 3 screws. Tighten securely.

CARBURETOR ADJUSTMENTS

WARNING: The chain will be mov- ing during most of this procedure. Wear your protective equipment and observe all safety precautions. The chain must not move at idle speed.

The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions:

SChain moves at idle. See IDLE SPEED--T adjusting procedure.

SSaw will not idle. See IDLE SPEED--T ad- justing procedure.

Idle Speed-T

Allow engine to idle. If the chain moves, idle is too fast. If the engine stalls, idle is too slow. Adjust speed until engine runs without chain movement (idle too fast) or stalling (idle too slow).

STurn idle speed screw (T) clockwise to in-

crease engine speed.

STurn idle speed screw (T) counterclock- wise to decrease engine speed.

If you require further assistance or are unsure about performing this procedure, contact your authorized service dealer or call 1--800--554--6723.

BAR MAINTENANCE

If your saw cuts to one side, has to be forced through the cut, or been run with an improper amount of bar lubrication it may be neces- sary to service your bar. A worn bar will dam- age your chain and make cutting difficult.

After each use, ensure ON/STOP switch is in the STOP position, then clean all sawdust from the guide bar and sprocket hole.

To maintain guide bar:

SMove ON/STOP switch to the STOP posi-

tion.

SLoosen and remove chain brake nuts and chain brake. Remove bar and chain from

saw.

SClean the oil holes and bar groove after each 5 hours of operation.

Remove Sawdust From

Guide Bar Groove

Oil Holes

S Burring of guide bar rails is a normal process of rail wear. Remove these burrs with a flat file.

SWhen rail top is uneven, use a flat file to re- store square edges and sides.

File Rail Edges

and Sides

Square

Worn Groove

Correct Groove

Replace guide bar when the groove is worn, the guide bar is bent or cracked, or when excess heating or burring of the rails occurs. If replacement is necessary, use only the guide

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Poulan 545123817 Cleaning the Spark Arresting Screen, Carburetor Adjustments, Idle Speed-T, BAR Maintenance

545123817 specifications

The Poulan 545123817 is a robust chainsaw designed for both professional and residential use, offering a blend of power, efficiency, and ergonomics. This model is particularly noted for its reliability, making it a popular choice among homeowners and arborists alike.

One of the standout features of the Poulan 545123817 is its 50cc engine, which provides ample power for cutting through various types of wood. This capability allows users to tackle everything from small branches to larger trees, enhancing its versatility on the job. The engine is optimized for fuel efficiency, ensuring that users can work for extended periods without the need for frequent refueling.

The chainsaw utilizes a 20-inch Oregon bar and chain, providing the reach necessary for larger cutting tasks while maintaining a manageable weight. The Oregon technology ensures the chain maintains its sharpness longer, reducing the downtime spent on blade maintenance. Additionally, the design includes automatic bar and chain oil lubrication, which minimizes friction and wear, contributing to the longevity of the tool.

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Safety is paramount in any chainsaw, and the Poulan 545123817 incorporates several important safety features. It includes a chain brake that automatically engages in the event of kickback, helping to prevent accidents. The chainsaw also has a low kickback chain, which reduces the force that can cause the chainsaw to jerk away from the user unexpectedly.

Another noteworthy aspect of the 545123817 is its ease of use. The chainsaw is equipped with an easy-start system that reduces the effort required to start the engine, making it more accessible to users of varying skill levels. Moreover, the model features tool-less air filter and spark plug access, which simplifies maintenance tasks, allowing users to keep the tool in top condition with minimal hassle.

In conclusion, the Poulan 545123817 is a powerful and efficient chainsaw that combines advanced technologies with practical features. Its well-balanced design, safety mechanisms, and user-friendly operation make it an excellent choice for anyone looking to accomplish cutting tasks with ease. Whether for professional landscaping or simple home projects, this chainsaw provides reliable performance that can handle a variety of challenges.