STIHL MS170 180 Chainsaw Sprocket Replacement – Hipa
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STIHL MS170 180 Chainsaw Sprocket Replacement

by JEREMY HIPA 07 Sep 2022 0 Comments

Stihl MS 170 180 are the very popular little chainsaws. Here is a step-by-step guide on how to replace the sprocket on Stihl MS 170 180 chainsaws.

Preparation

The only tool you need is the chainsaw tool that came with your chainsaw when you bought it. If you do not have the tool, you are going to need a 19-millimeter socket and a slotted screwdriver.

Replacement

Step 1: You have to remove the two nuts on the plate. It is better for you to wear gloves to protect your hands from the chain.

ideal for saw chain change, wood carving, wood cutting, machine repair and more.
 

Step 2: Take off the plate and remove the chain and the bar from the sprocket. Now you can check the condition of the sprocket. The symptoms that indicate you need to replace the sprocket are the saw had a hard time cutting through wood and you went through more chains because the worn-out sprocket damaged the drive links of your chain.
A small tip: When you replace your chain, you’d better check the condition of your sprocket.
Step 3: Now you need to flip the saw to make the sprocket upwards. Therefore you can remove the e-clip on the crankshaft. Push down pry out keep your finger on the e-clip so it does not go flying on you and then pull out the washer.
Before you remove the sprocket, you have to make sure that the chain brake is not engaged.
Step 4: Grab the sprocket and pull it out. Air blow the dirt out and clean the bearing and the shaft. If your sprocket is good and you want to keep it, you need to clean the inside of the sprocket to make sure it is not oily.
Step 5: Before you reinstall the new sprocket, you need to ensure your bearing is greased and clean. It is also crucial to make sure you line up the notch on the sprocket to the gear shaft behind the clutch.
Step 6: Now you are supposed to reinstall the washer and the clip. Then reinstall the chain and the bar, put the plate on and screw in that two nuts.

Please let us know if this works and if you have any suggestions or comments. Or you can join HIPA DIY COMMUNITY to feature your passion for repair projects, share your stories with the Hipa family and get help from Hipa.

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