People tend to put off servicing their winches but as long as you follow the steps its straightforward and can keep your winches in great shape for years to come.
Practical Sailor has a number of tips to help you keep your winches operating smoothly, from what winch grease to use as well as how to degrease all the parts. Most importantly they note that you should keep track of the order you take things apart, taking pictures along the way will help immensly. Take care when taking the winch apart, you don’t want to lose any pieces! Read more.