Causes and Solutions for Abnormal Noise of Floor Springs

Detailed Explanation: During the use process, foreign objects such as dust and sand may enter the interior of the floor spring. These foreign objects will be sandwiched between the components, causing friction and collision during the movement of the components and then resulting in abnormal noise.
Solution: Try to clean out the foreign objects. A small - sized vacuum cleaner or a compressed - air can can be used to suck out or blow out the foreign objects inside the floor spring. If the foreign objects have caused damage to the components, the damaged components also need to be repaired or replaced.

Detailed Explanation: After the floor spring is used for a long time, the internal mechanical components such as the spring and the rotation shaft may be worn. For example, the elasticity of the spring is weakened or the lubricating layer on the surface of the rotation shaft is worn off, which will lead to an increase in the friction coefficient between components and thus produce abnormal noise.
Solution: In this case, the floor spring needs to be disassembled (if possible), and the worn components should be checked. For slightly worn components, they can be cleaned and an appropriate amount of lubricant can be added to reduce friction. If the components are severely worn, such as the spring losing its elasticity or the rotation shaft being deformed, new components need to be replaced.

Detailed Explanation: If the floor spring is not installed horizontally during the installation process, or the connection part between the door body and the floor spring is not installed properly, such as loose connection screws and the misalignment of the rotation shaft and the axis, it is easy to produce abnormal noise during the opening and closing of the door. Because this kind of improper installation will lead to uneven friction or additional stress between components.
Solution: Firstly, use a level to check whether the floor spring is installed horizontally. If it is not, the installation position needs to be readjusted. For the situation of loose connection screws, tighten the screws in a timely manner. If the rotation shaft and the axis are not aligned, carefully readjust the connection between the door body and the floor spring to ensure that the rotation shaft can rotate smoothly in the axis of the floor spring.

Detailed Explanation: If the amount of hydraulic oil inside the floor spring is over - filled and exceeds the specified capacity, during the opening and closing of the door, the oil may seep out from the part with poor sealing under the pressure.
Solution: Check whether the amount of oil in the floor spring meets the requirements of the product manual. If there is too much oil, an appropriate amount of oil can be drained through a special oil - draining hole (if available) or under the guidance of a maintenance person to make the amount of oil within a suitable range.

Detailed Explanation: If the housing of the floor spring is cracked due to external forces such as impact and compression, the hydraulic oil will leak from the cracked part. This situation may occur when a heavy object is carried past the door and accidentally hits the floor spring, or the floor spring is damaged during the installation process.
Solution: For the situation of slightly damaged housing, metal repair agents and other materials can be tried to repair. But if the housing is severely damaged, the whole floor spring needs to be replaced, because even if the housing is repaired, it is difficult to ensure the normal operation and sealing of the internal hydraulic system.

Detailed Explanation: There is hydraulic oil inside the floor spring, and the seals are relied on to prevent the oil from leaking. If the seals are aged, damaged, or damaged by external force, the hydraulic oil will leak from the damaged part. For example, the seals are easily aged, hardened, and cracked due to long - term immersion in hydraulic oil and the effect of pressure.
Solution: New seals need to be replaced. When replacing the seals, high - quality seals that match the model of the floor spring should be selected, and during the installation process, it should be ensured that the seals are installed correctly without distortion or gaps to ensure a good sealing effect.