Otis Gen2 Scratch ((link)) Instant

The is more than an acoustic nuisance; it is a diagnostic signal. It tells you that the friction balance between belt and sheave has failed. Whether caused by dust, misalignment, or worn polyurethane, every scratch is a countdown to a more expensive failure.

The appearance of red dust (rouge) on the belt or governor rope suggests internal wire oxidation and friction, a major concern for belt integrity. otis gen2 scratch

Excessively tightened bolts can cause belts to "pucker," leading to uneven and premature wear. The is more than an acoustic nuisance; it