While near the wheel, carefully inspect the chain for signs of cracked or elongated links. The wheel's shaft, of course, should turn freely. All of the components should be well lubricated; my choice would be to use LubriMatic's Marine Wheel Bearing Grease (www. plews-edelmann.com), which won't wash off, although like all greases, it'll oxidize over time. If the system is more than 5 years old, consider removing the chain and cleaning it in mineral spirits or kerosene. Then apply a liberal coating of new grease, kneading it into every link using a brush or gloved fingers. This goes for other lubricated components, such as sheaves and quadrant grooves, as well. Full cable and chain replacement should occur at 10-year intervals, or more frequently if the boat sees regular, hard ocean use. Many cruisers save the old assembly as a spare.