1. Inorder to replace fix or install your new Acer 5742 laptop fan and heatsink, you will need to open up your laptop. You can do this by removing the screws from the bottom of the laptop.
2. Once the screws have been removed from the bottom of your laptop, you can now remove the keyboard and plastic bezels from your Acer 5742 laptop.
3. You will see your Acer 5742 Fan and Heat Skin exposed.
4. Use a screw drivers and remove the screws from you Acer 5742 HeatSin Fan.
5. Before reinstalling the new Acer 5742 Fan onto your laptop, you can clean the Acer 5742 Fan. To clean your Fan and Heatsink, use a can of air and blow out any dirk from your Acer 5742 Fan. You can also use a paint brush to clean out the dirt from the hard to get areas. Somtimes cleaning your Acer 5742 laptop fan will actually repair it. Dirt can cause the Acer 5742 Laptop Fan to make noise and even stop spinning properly.