Elevator Steel Belt Coating Cracks
Why Should Cracks in Elevator Steel Belt Coating Not Be Ignored? In an elevator steel belt traction system, the coating of the elevator steel belt not only protects the internal steel cords but also plays an important role in friction transmission between the belt and the traction sheave. When cracks, peeling, or localized damage appear […]
Elevator Steel Belt Edge Wear Problems
Why Do Elevator Steel Belts Become Misaligned and Develop Edge Wear? In a steel belt traction elevator, the elevator steel belt must maintain a stable running path along the steel belt sheaves. If the belt continuously shifts to one side and develops fraying, wear, or localized edge damage, it usually indicates a problem with the […]
Old Elevator Button System Modernization
Complex Wiring and Frequent Button Faults in Old Elevators? How to Rematch the Button System During Modernization After many years of operation, problems in older elevators are often not limited to worn elevator push buttons. Complex wiring modifications, inconsistent interface standards, and outdated communication methods can also create multiple potential fault points. During an old […]
Handrail Support Roller Runout & Vibration
Why Does Escalator Handrail Support Roller Radial Runout Cause Periodic Vibration? Common Causes and Solutions In an escalator handrail system, the escalator handrail support roller supports the handrail during its return movement and helps maintain a stable running path. When a support roller develops radial runout, the handrail is subjected to repeated vertical impacts, which […]
Escalator Handrail & Step Speed Problems
Old Escalator Handrail and Step Speeds Out of Sync? Check These 6 Components During Modernization After years of operation, an older escalator may develop a difference between handrail speed and step speed, causing the handrail to run slower, slip intermittently, or vibrate during operation. When escalator handrail speed becomes unsynchronized with the steps, the problem […]
Elevator Traveling Cable Signal Problems
Why Do Old Elevator Traveling Cables Develop Intermittent Signal Faults? In older elevators, the elevator traveling cable continuously bends as the car moves up and down every day. After years of operation, the internal conductors, insulation, and shielding structure may gradually suffer from fatigue and deterioration, resulting in intermittent elevator signal faults that appear and […]
Escalator Step Roller Uneven Wear
Why Does an Escalator Step Roller Develop Uneven Wear on One Side? The escalator step roller supports the step as it moves continuously along the guide track. Under normal conditions, the load should be distributed relatively evenly across the roller surface. If one side of the roller shows continuous or excessive wear, the problem may […]
Door Hanger Roller Hardening Problems
Why Does Elevator Door Hanger Roller Surface Hardening Cause Door Vibration and Noise? In an elevator door system, the elevator door hanger roller supports the door panel and allows it to move smoothly along the door operator track. After long-term use, roller surface materials such as rubber or polyurethane may gradually age and harden. As […]
Escalator Drive Shaft Bearing Problems
Why Does Escalator Main Drive Shaft Bearing Wear Cause Periodic Vibration and Noise? In an escalator drive system, the main drive shaft transfers power to the drive sprockets and related operating components, while the bearings support the shaft and allow it to rotate smoothly and steadily. When the escalator main drive shaft bearings become worn, […]
Old Elevator Safety Circuit Problems
Frequent Intermittent Safety Circuit Faults in Old Elevators? Check These 6 Components During Modernization After many years of operation, older elevators may experience problems such as occasional shutdowns, failure to start after the doors close, or temporary recovery after a system reset. Many of these old elevator faults are related to unstable electrical contact within […]
Old Elevator Leveling Problems
Why Is the Leveling Error of an Old Elevator Getting Worse? After many years of operation, older elevators may develop increasingly noticeable leveling errors, such as the elevator car stopping slightly above or below the landing floor. Elevator leveling accuracy is affected by more than one component. It is usually related to position detection, speed […]
Escalator Newel Guide Wear Problems
Why Does Escalator Newel Guide Component Wear Cause Poor Handrail Return Movement? At the entrance and exit areas of an escalator, the escalator newel not only affects the overall appearance but also guides the handrail as it enters the turnaround area. Inside the newel, there are usually handrail guide rollers, support rollers, or sliding guide […]
