It is known that over time a regular door and other hinges start to creak, and lubricate them from the inside is not so simple: sometimes you have to remove them, which is not always possible.
However, once you drill into the top level loop through hole to the axis, and lubrication is simplified, and the result is excellent: the loop will stop squeaking for a long time.
Recommend to read
F-104 “STAR FIGHTER”
The cold war, which lasted for several decades, was one of the most devastating in the history of mankind. Huge forces and means were involved in research and development of high-tech...
STABLE ARC
If a hardware craftsman himself makes various machines, such as small tools that facilitate work on the farm and in the home, then no welding machine he can not do. Among designers and...