Summarize the following:
This is the small mesh screen that pulls in and out of the dryer. For forward-facing dryers, it can be located on the front of the loading panel. For top-load dryers, it may be located under a small flap. Clean the lint catcher after each load to avoid lint buildup and, consequently, a fire hazard. Disconnecting the power is a necessary safety precaution before messing with any parts of your dryer. If you have a gas dryer, turn the gas valve on the dryer line or turn the valve supplying gas to your whole house. Then unscrew the flex hose to disconnect the dryer from the gas line and use a gas line cap to seal the line until you’re done cleaning the dryer.  If you’re not sure whether your dryer is gas or electric, refer to the manual or look up the manufacturer and model number online for more information. Some dryer manuals will also give you specific cleaning instructions. Lint can build up in the screen (especially if you don’t clean it after each load), falling down into the shaft that holds the lint catcher. Removing the top panel will allow you to clean any lint that may have fallen beyond the lint trap. First you’ll need to take out the screws located around the opening of the lint trap. Then pull the entire top panel towards you and lift it up to release the metal catches.  If your dryer faces forward, the metal catches are typically located about 3 inches (7.6 cm) to 4 inches (10 cm) down from the top and up from the floor. You’ll have to slide the panel upwards or downwards depending on how your dryer is assembled. If your dryer has a condenser unit that holds the lint trap, remove it from the dryer and rinse away any lint under the faucet of a large sink. Make sure to rinse both sides of the unit and let it air dry for a few hours before inserting it back into the dryer. You may need to wedge a screwdriver between the top or front panel and the base of the dryer to pry it open. Depending on your dryer, the lint filter opening will look like a rectangular tray (this is where the lint catcher slides in and out) or a deep crevice (for front loading machines). Stick a dryer cleaning brush down into it and twist it around, moving it back and forth to get all of the lint out.  You can purchase a dryer lint cleaning kit at any hardware store. If you don’t have a lint cleaning brush, you can use a large pipe brush cleaner or a vacuum with a hose attachment that’s small enough to fit inside the opening. After cleaning the most common places for lint to accumulate, replace all the parts and reconnect the dryer to the power source. If your dryer is gas-powered, reconnect the gas line and turn it on. Run the dryer for up to 1 or 2 minutes to see if the burning smell is gone.  If there’s no smell you can use your dryer as usual—just remember to clean out the lint trap after each load. If the burning smell persists, there may be lint stuck around the parts inside of the dryer.

Summary:
Remove any lint from the lint catcher. Unplug the power cord from the wall. Use a screwdriver to remove the top panel of your dryer. Use a dryer brush to remove lint from the lint filter opening. Replace the lint trap, the lint panel, and plug in the dryer to test it.