Using this Fisher & Paykel rear drum bush and housing assembly is easy. First, make sure your dryer is turned off and unplugged. Then, remove the old part carefully and replace it with this new one. Remember to lubricate it with light machine oil before installation, as this will help it work smoothly. As for maintenance, check the part regularly for any signs of wear and tear. If you notice anything wrong, replace it right away. Also, keep the area around the part clean to prevent dust and debris from causing problems. That's it! With proper use and care, this part will keep your dryer running great for a long time.