Typical ailments and maintenance of the independent suspension. The most common failures are the wear of the rocker arm pins and bushings as a result of hard working conditions (water, short, mud) and locking the pins in the sleeves, due to poor lubrication. Replace the worn bushings and pins with new ones, however, seized pins are washed in kerosene after disassembly and after installation (installed) lubricates. The proper technical condition of the front wheel suspension and steering system elements is the basic condition for driving safety. Considerable attention should be paid to the operation and control of these devices. Tie rods generally have grease nipples to press in grease on the housings of all ball joints. The grease is pressed in at the intervals specified in the operator's manual. There may be three front wheels in the steering knuckle suspension, four or five grease nipples depending on the design and type of the car. The inner bearings of the control arms of the front wheels are usually made as flexible rubber bushings, which do not require lubrication. However, they should be protected from rubber-dissolving ingredients, so before the grease, oil and gasoline. Internally, bearings for the upper wishbones of the front wheels of some cars (e.g. Moskvich 408) have grease lubricated bushings pressed through grease nipples.