Introduction

Elevators operate daily under heavy load cycles. Without preventive maintenance, component wear leads to breakdowns, safety risks, and expensive repairs.

A structured maintenance program ensures operational continuity and passenger safety.

1️⃣ What is Preventive Maintenance?

It is scheduled servicing performed before faults occur.

Includes:

• Mechanical inspection

• Electrical testing

• Lubrication

• Calibration

Goal → Avoid downtime, not react to it.

2️⃣ Critical Components Serviced

Traction System

• Motor

• Gearbox

• Brake assembly

Control Panel

• Relay checks

• PCB diagnostics

• Voltage stability

Door Mechanism

• Sensors

• Rollers

• Alignment

Door faults cause most elevator failures.

3️⃣ Safety System Testing

Technicians test:

• Emergency alarms

• ARD operation

• Overspeed governors

• Limit switches

These systems activate only during emergencies — testing is essential.

4️⃣ Lubrication & Wear Control

Friction points include:

• Guide rails

• Bearings

• Pulleys

Proper lubrication reduces vibration and noise.

5️⃣ Software & Automation Checks

Modern elevators include smart controllers.

Maintenance includes:

• Firmware updates

• Error log analysis

• Auto-rescue testing

6️⃣ Cost Benefits of Preventive AMC

7️⃣ Recommended Maintenance Frequency

• Commercial lifts → Monthly

• Hospitals → 15–30 days

• Residential → 2 months

High-traffic elevators need tighter schedules.

Conclusion

Preventive elevator maintenance is not an expense — it is asset protection. Regular servicing increases equipment lifespan, ensures compliance, and guarantees passenger safety.