A Wheel Cylinder is a component in a Drum Brake system. It is located in each wheel usually at the top, above the shoes. Its responsibility is to exert force onto the shoes so they can contact the drum and stop the vehicle with friction. It is very similar to a Master Cylinder and functions in pretty much the same way, consisting of just a simple little plunger on the inside. In older vehicles these will begin to leak and hinder the performance of the brakes, but are normally inexpensive and easy to replace. Wheel cylinders must be rebuilt or replaced if they show signs of leaking. They must be finished so they will work smoothly otherwise they create problem in working of other parts also. |
