Besides those intervals, the brake system must be checked every time wheels are off or a malfunction detected as such checks are vital. Signs of fault in brake system include; screeching or scratching sound to disc brakes; this are derived from metal to metal contact resulting from worn brake pads and these should be replaced as soon as possible since it is destructive to the brake discs. Other performance indications that are suggestive of defects are awful drum or disc grab-or the vehicle pulling towards one side while applying the brakes, taking a longer distance to depress the pedals than normal, pulsating pedals, and visible fluid leakage. If the BRAKE light is on then it points to hydraulic system leak and requires the attention of the driver or the repair person, on the other hand, when anti-lock brake system is on then before the car can be repaired, the driver has to conform that the brakes are an issue. The brake system is mainly paired with steel tubing, and flexible hoses at the front wheels and connectors at the rear axle must be inspected periodically. To examine, it can be parked on flat surface, apply brake, switch off the engine, take off the wheel-trim, unfasten the lug-nuts, raise the vehicle with jack and support with hydraulic jacks and finally, take off the wheel. Inspect all brake fluid lines and hydraulic brake hoses for cracks, leaks, and signs of wear; check that all fittings are correctly attached. In the case of disc brakes you need to jack up the car and take off the front wheels check on the thickness of the calips and pads and if in need of replacement do so. Brake disc also ought to have a check with a view of determining whether it is damaged or not, while calipers ought to be removed from the car body but not detached from the hoses to be lubricated. For drum brakes, the rear drums should be have the lining material checked and shoes changed if worn of contaminated. See that springs and adjusting mechanisms are alright and examine wheel cylinders for leak. It is usually good practice to check the drums for flaws, then have them refinished if necessary, then the wheels and drums should be refitted. It is recommended to grease the parking brake from time to time so that it should not seize up; one should be able to determine the efficiency of the parking brake by engaging it when the car has been parked on an inclined plane.