Poulan Pro SM4018 Operator's Manual
![Poulan Pro SM4018 Chainsaw manual cover](/images/LPwgeArWmetTOhkZikJJvBlB/thumbs/thumb175x175.webp)
To start your Poulan Pro SM4018 Chainsaw, make sure the chain brake is engaged. Move the switch to the 'ON' position, pull the choke lever out, and pull the starter handle until the engine attempts to start. Push the choke in halfway and pull the starter handle again until the engine starts. Allow the chainsaw to warm up before use.
The correct fuel mixture for the Poulan Pro SM4018 Chainsaw is 40:1, which means you should mix 3.2 ounces of two-stroke engine oil with one gallon of unleaded gasoline.
If your chainsaw won't start after storage, check the fuel for old gas and replace it if necessary. Inspect the spark plug for wear or damage and replace it if needed. Ensure the air filter is clean and the carburetor is not clogged.
To tension the chain, ensure the chainsaw is off and cool. Loosen the bar nuts slightly and turn the tensioning screw clockwise to tighten the chain. The chain should have a small amount of slack but should snap back into place when pulled. Tighten the bar nuts once the tension is correct.
Regular maintenance includes cleaning the air filter, inspecting and replacing the spark plug as needed, checking chain tension and sharpening the chain, inspecting the bar for wear, and ensuring the safety features are functioning properly.
To sharpen the chain, use a round file and file guide that matches the chain's specifications. Secure the chainsaw bar in a vise, and file each cutter at a consistent angle, using the guide to maintain the correct depth and angle.
Overheating can be caused by a dirty air filter, using the wrong fuel mixture, or a dull chain that requires more effort to cut. Ensure proper maintenance and use the correct fuel mixture to prevent overheating.
Poor cutting performance can be due to a dull chain, incorrect chain tension, or a clogged air filter. Sharpen or replace the chain, adjust the tension, and clean the air filter to improve performance.
Use a high-quality bar and chain oil specifically designed for chainsaws. It provides the necessary lubrication and is formulated to work in various temperatures.
To store the chainsaw for long periods, empty the fuel tank and run the engine until it stops. Clean the chainsaw thoroughly, remove the chain and bar, and store them in a dry, safe place. Lubricate metal parts to prevent rust.