A property manager in Chicago contacted us after tenants threatened to break leases over "the screaming elevator." The Otis Gen2 machine had a scratch so loud it could be heard two floors away in the stairwell.
system, focusing on its design, common maintenance issues related to "scratching" or wear, and user sentiment. 1. Key Technology: The Flat Belt System is famous for replacing traditional steel ropes with polyurethane-coated steel belts www.otis.com
The Otis Gen2 scratch is a technical indicator of elevator health. While the system's coated steel belts are revolutionary and robust, the integrity of the entire elevator depends on the integrity of the polyurethane skin. otis gen2 scratch
The "Scratch" typically refers to one of two scenarios:
The thin profile allows the belt to bend around a significantly smaller drive sheave (roughly 100mm in diameter compared to the standard 400mm+ for steel ropes). A property manager in Chicago contacted us after
The Gen2 offers a range of aesthetic options, though critics often note that the "beauty" of the cab depends more on third-party interior providers than on Otis itself.
The Gen2 generally receives high marks for ride quality but faces criticism regarding proprietary maintenance. Review of the de-Russified OTIS GEN2 LV MRL elevator Key Technology: The Flat Belt System is famous
If a scratch cuts entirely through the polyurethane jacket, exposing the internal zinc-plated steel cords to air and moisture, the belt is compromised. Exposed steel cords are vulnerable to corrosion and friction wear, necessitating immediate belt replacement. Pulse System Monitoring
: Instead of wasting energy as heat during braking, the system captures energy and feeds it back into the building’s power grid.
The elevator car and counterweight travel up and down along vertical steel T-rails, guided by roller guides or sliding guides. "Scratches" here manifest as linear scoring or gouges running vertically along the rail surface.
One of the reasons the Otis Gen2 system is so highly regarded for safety is its automated belt monitoring system, known as .