Due to some factors (construction dust, water and humidity accumulated in the elevator shaft, etc.) in the bearings, accumulations such as dirt, dust and rust may occur after a while. Dirt inside the bearing often causes an annoying noise. A severely damaged bearing will produce an irregular and loud noise. However, corroded bearing covers produce a regular and uniformly solid sound. At this stage, we must first use a rust remover in order to clean the inside of the bearing and remove the rust. There are chemicals that only allow the rust to be completely removed without damaging the bearing. This type of application can be made especially in closed type bearings. After the rust remover application, the elevator is operated for 7 to 8 turns. It is operated at revision speed for the first 3-4 laps, and at normal cruising speed for the next laps. The purpose of this is to completely remove the dirt and rust inside as a result of the movement of the bearing during travel.
Afterwards, we can lubricate our bearings with the application of LIQUID GREASE. The duty of the lubricant; reducing friction, preventing wear and corrosion, lowering the operating temperature and protecting the bearing against both solid and liquid dirt. The first thing to do in a bearing to be lubricated is to clean its surroundings. The grease to be used for relubrication should be as clean as the original grease. Immediately afterwards, the cleaned bearing must be lubricated with a suitable liquid grease (it is important to choose the correct grease for bearing application and apply the correct amount before commissioning the bearing.). While greasing is being done, the bearing should be rotated so that the grease is spread well on the raceway (between the two covers). It is expected to have an immediate effect as a result of cleaning. There should be no irregularities and noise, no roughness should be felt. If desired, the bearing is then measured and checked to examine its condition and whether it can be reused. It should be checked whether the situation recurs in the next process. If the noise continues to come from the bearing after two or three applications in different periods, the bearings should be replaced.