Button Air Filter

Air Filter Cover

MUFFLER AND SPARK ARREST- ING SCREEN

WARNING: The muffler on this prod- uct contains chemicals known to the State of California to cause cancer.

As your unit is used, carbon deposits build up on the muffler and spark arresting screen. For normal homeowner use, however, the muffler and spark arresting screen will not re- quire any service. After 50 hours of use, we recommend that your muffler be serviced or replaced by your authorized service dealer.

REPLACE SPARK PLUG

Replace the spark plug each year to ensure the engine starts easier and runs better. Set spark plug gap at 0.025 inch (0.6 mm). Igni- tion timing is fixed and nonadjustable.

1.Twist, then pull off spark plug boot.

2.Remove spark plug from cylinder and discard.

3.Replace with Champion RCJ-6Y spark plug and tighten securely with a 3/4 inch (19 mm) socket wrench.

4.Reinstall the spark plug boot.

SERVICE AND ADJUSTMENTS

REPLACING THE LINE

1.Press the tabs on the side of the trimmer head and remove cover and spool.

Cover

Tab

Tap Button

2.Remove any remaining line.

3.Clean dirt and debris from all parts. Re- place spool if it is worn or damaged.

4.Replace with a pre-wound spool, or re- place line using a 13 feet length of 0.095 inch (2.4 mm) diameter WEED EATER brand line.

5.When installing new line on an existing spool, hold the spool as shown in the il- lustration below.

6.Bend the line at the midpoint and insert the bend into the slot in the center rim of the spool. Ensure line snaps into position in the slot.

Slot

Spool

7.With your finger between the lines, wrap the lines evenly and firmly around the spool in a clockwise direction.8.

Position the lines in the guide slots.

Guide Slot

Guide

Slot

9.Insert the ends of the lines through exit holes in the sides of the cover.

10.Place the spool in the cover.

Spool

Cover

11.Make sure the lines are not caught be- tween the rim of the spool and the wall of the cover.

12.Reinstall the spool and cover onto the trimmer head. Push until cover snaps into place.

REPLACING THE CUTTING HEAD

1.Align hole in the dust cup with the hole in the side of the gearbox by rotating the dust cup.

2.Insert a small screwdriver into aligned holes. This will keep the shaft from turning while removing and installing trimmer head.

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Poulan MX557 Service and Adjustments, Muffler and Spark ARREST- ING Screen, Replace Spark Plug, Replacing the Line
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MX557 specifications

The Poulan MX557 is a versatile chainsaw designed for both novice and experienced users, making it an ideal choice for various cutting tasks. This powerful tool highlights a blend of robust performance, ease of use, and advanced technological features that emphasize efficiency and safety.

One of the standout features of the MX557 is its 50cc 2-stroke engine, which delivers impressive cutting power. This engine is designed for optimal performance, allowing users to tackle tougher jobs, including felling trees, trimming branches, and cutting firewood with relative ease. The chainsaw's engine is also engineered to provide excellent fuel efficiency, ensuring that users can work longer without constant refueling.

The Poulan MX557 comes equipped with a 20-inch guide bar and a low-profile chain, providing a good balance between cutting power and control. This combination allows for greater maneuverability, making it easier to navigate around trees and branches. The longer guide bar is particularly beneficial for making deeper cuts, enhancing the overall performance of the chainsaw.

Safety is a critical aspect of chainsaw design, and the MX557 incorporates several safety features to protect users during operation. The chainsaw includes a chain brake, which can be activated quickly in case of kickback, reducing the risk of injury. Additionally, the comfort-grip handles provide a secure hold, minimizing vibrations and enhancing user control.

Another innovative technology included in the MX557 is the Easy Start system, which simplifies the starting process. This feature is especially beneficial for beginners, as it requires less effort to get the chainsaw running. Furthermore, the tool-free chain tensioning system allows users to adjust the chain's tension easily, ensuring optimal performance without the need for additional tools.

The Poulan MX557 is designed with user convenience in mind. Its lightweight construction makes it easier to handle for extended periods, while the fuel and oil tanks are transparently marked to simplify monitoring fluid levels. This attention to detail ensures that users can operate the chainsaw effectively without interruptions.

In summary, the Poulan MX557 is a powerful and efficient chainsaw that incorporates advanced technology and safety features, making it an excellent choice for a variety of cutting needs. Its robust performance, user-friendly design, and essential safety elements make it a reliable tool for any homeowner or professional looking to manage their cutting tasks with confidence.
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