Replacing the Drive Belt

If drive belt becomes worn, oil-soaked, excessively cracked, frayed, or otherwise damaged, replace the belt.

1.Remove the drive side cover by removing the six screws as shown in (Figure 30).

5 6

4 7

			1
	3
			2
	Figure 30
1.	Drive side cover	5.	Idler pulley
2.	Screw	6.	Engine pulley
3.	Drive pulley	7.	Drive belt

4. Idler arm

2.Press down on front of idler arm to release the belt tension (Figure 30).

3.Remove the drive belt from the drive pulley (Figure 30).

4.Install the new drive belt, routing it as shown in (Figure 31).

NOTE: Route the new drive belt first around the engine pulley, then the idler pulley, and finally around the drive pulley while pressing down on the front of the idler arm. (Figure 31).

5.Install the drive side cover with the screws removed in step 1.

1 2

Figure 31

1.Idler arm

2.Idler pulley

3.Engine pulley

4.Drive pulley

NOTE: Ensure that the drive belt is properly adjusted and operating; refer to Checking the Control Cable and Adjusting the Control Cable in the Maintenance section of this manual.

PP521ES specifications

The Poulan PP521ES is a high-performance gas chainsaw designed for homeowners and light commercial use. Known for its reliability and power, this chainsaw is perfect for tasks such as trimming, cutting firewood, and clearing brush. Combining usability, efficiency, and comfort, the PP521ES stands out among its competitors in the market.

One of the most notable features of the Poulan PP521ES is its robust 52cc engine. This powerful engine delivers impressive performance, allowing users to tackle tougher jobs with ease. The engine's design ensures effective fuel consumption, enabling users to work longer without frequent refueling. Equipped with an easy-start system, the PP521ES minimizes the frustration often associated with starting gas-powered chainsaws, making it user-friendly for both novice and experienced operators.

The PP521ES incorporates advanced technologies to enhance its performance and longevity. The chainsaw features an automatic oiling system that allows for consistent lubrication of the bar and chain, reducing wear and increasing the overall lifespan of these components. This feature ensures that users maintain optimal cutting performance with minimal maintenance. The chainsaw also boasts a chain brake for added safety. This mechanism quickly stops the chain in the event of kickback, providing peace of mind for operators during use.

The design of the Poulan PP521ES emphasizes comfort and control. It comes with an ergonomic handle that provides a secure grip, reducing fatigue during extended use. The lightweight design further enhances maneuverability, making it easy to handle for various cutting tasks. Additionally, the saw's low-vibration technology helps dampen vibrations, ensuring that users can work comfortably without excessive hand fatigue.

A notable characteristic of the PP521ES is its 18-inch bar length, which strikes a balance between cutting capacity and ease of handling. This size makes it suitable for a wide variety of applications, from pruning branches to felling small trees. The chainsaw is compatible with various chain types, allowing users to customize their cutting experience based on their specific needs.

In summary, the Poulan PP521ES is a powerful, reliable, and user-friendly chainsaw that excels in both performance and convenience. Its combination of advanced technology, safety features, and ergonomic design make it an excellent choice for homeowners and outdoor enthusiasts alike. Whether you need to perform routine yard maintenance or tackle more demanding cutting tasks, the PP521ES provides the tools necessary to get the job done efficiently.