Inspect Muffler and Spark Arresting Screen

SWash the filter in soap and water. Air dry completely before reinstalling.

SReplace parts.

INSPECT MUFFLER AND SPARK ARRESTING SCREEN

As the unit is used, carbon deposits build up on the muffler and spark arresting screen and must be removed to avoid creating a fire hazard or affecting engine performance.

Replace the spark arresting screen if breaks occur.

Spark Arrestor

Screen

CLEANING THE SPARK ARREST- ING SCREEN

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

S Loosen and remove the muffler cover screws.

SRemove the muffler cover (cover snaps off muffler body).

SRemove muffler diffuser and spark arrest- ing screen assembly. Notice the orienta- tion of parts for reassembly.

S Clean the spark arresting screen with a wire brush. Replace screen if breaks are found.

S Replace any broken or cracked muffler parts.

S Reinstall diffuser and spark arresting screen assembly with holes facing up and toward muffler cover.

SReinstall muffler cover and screws. Tight- en securely.

CARBURETOR ADJUSTMENTS

Your carburetor is equipped with limiter caps. Carburetor adjustment is a compli- cated task. We recommend that you take your unit to an authorized service dealer. Damage will occur if you turn the needles be- yond the limiter stops.

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.

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

Remove Sawdust From

Guide Bar Groove

Sprocket Hole

Oil Holes

SAdd lubricant to sprocket hole after each use.

SBurring of guide bar rails is a normal pro- cess 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 exce-

ssheating or burring of the rails occurs. If re- placement is necessary, use only the guide bar specified for your saw in the repair parts list or on the decal located on the chain saw.

CHAIN SHARPENING

Chain sharpening is a complicated task that requires special tools. We recommended you refer chain sharpening to a professional chain sharpener.

IGNITION TIMING

Ignition timing is fixed and nonadjustable.

SPARK PLUG

The spark plug should be replaced each year to ensure the engine starts easier and runs better.

SLoosen and remove the screws on the cyl-

inder cover.

SRemove the cylinder cover. S Pull off the spark plug boot.

S Remove spark plug from cylinder and dis- card.

S Replace with Champion RCJ--7Y spark plug and tighten securely with a 3/4 inch socket wrench. Spark plug gap should be 0.025 inches.

S Reinstall the spark plug boot.

S Reinstall the cylinder cover and screws. Tighten securely.

3450, 3750 specifications

The Poulan 3450 and 3750 chainsaws are notable models in the Poulan lineup, designed for both homeowner and light professional use. These chainsaws are recognized for their reliability, ease of use, and efficient performance in cutting tasks, making them a popular choice among users.

One of the defining features of the Poulan 3450 is its lightweight design, weighing in at approximately 10 pounds. This makes it easy to handle for extended periods without causing significant fatigue. The 3450 is equipped with a 16-inch bar, suitable for small to medium-sized cutting jobs, whether pruning trees or cutting firewood. It is powered by a 34 cc engine that provides adequate power for these tasks while maintaining a balance between performance and fuel efficiency.

The Poulan 3750 model offers a bit more power with its 37 cc engine. This model also features a 16-inch bar, but the additional engine capacity allows for better performance in more demanding cutting conditions. The 3750’s enhanced power makes it an excellent choice for users who require a bit more muscle for larger jobs, while still being manageable for the average homeowner.

Both models incorporate Poulan's patented Easy Start technology, which significantly reduces the effort needed to start the engine. This technology is particularly beneficial for less experienced users, as it requires less pull force compared to traditional chainsaw designs.

Another significant feature of the Poulan chainsaws is their automatic chain oiler that ensures the chain remains lubricated during operation. This helps to prolong the life of the chain and bar, reducing wear and enhancing cutting efficiency. The adjustable oiler also allows users to customize the oil flow based on their cutting applications.

In terms of safety, the Poulan 3450 and 3750 come equipped with a chain brake system that quickly stops the chain in the event of kickback, providing an additional layer of protection for the operator.

With their combination of power, portability, and ease of use, the Poulan 3450 and 3750 chainsaws present an excellent value for homeowners looking for reliable and efficient tools for their outdoor tasks. These models highlight Poulan's commitment to innovation and user-friendly designs, making them a smart choice for anyone needing a dependable chainsaw.