Escalators and Elevators

Escalator Service and Maintenance

Escalator Service and Professional Maintenance

Escalator Service: Costs, Steps, Maintenance & Essential Technical Guidelines

Table of Contents

  1. Introduction
  2. Why Escalator Service is Essential
  3. Escalator Service Costs
  4. General Service Steps
  5. Technical & Professional Steps
  6. Maintenance Plan & Scheduling
  7. Escalator Overhaul (General Service)
  8. Technical Table of Escalator Services
  9. Service Handover Checklist
  10. Common Faults & Warning Signs
  11. FAQ
  12. Contact & Consultation

Introduction

Escalators are widely used in shopping malls, metro stations, airports, office complexes, and even some high-traffic residential projects. Continuous operation and heavy passenger load put both mechanical parts (chains, bearings, rollers) and electrical systems (motor, gearbox, control panel, sensors) under constant stress. Therefore, escalator service is not optional but a critical requirement to ensure safety and performance stability.

Why Escalator Service is Essential

Lack of service leads to friction increase, overheating of bearings, chain elongation, reduced braking force, and sensor errors. The result: sudden breakdowns, higher repair costs, and safety risks. Regular maintenance provides key benefits:

  • Reduced unexpected failures and downtime
  • Improved efficiency and lower energy consumption
  • Extended lifespan of critical components
  • Better compliance with safety and insurance standards

Escalator Service Costs

The cost depends on variables such as model, passenger capacity, environmental conditions (humidity/dust), type of service (routine or overhaul), and spare parts requirements.

  • Routine service: Monthly/seasonal intervals, cost-effective and preventive.
  • Overhaul: Complete inspection and restoration; higher cost but long-term stability.
  • Spare parts: Expensive items include motor, gearbox, step chain, brake system, and control boards.

Note: Regular service is usually much cheaper than emergency shutdowns and heavy repairs.

General Service Steps

Performed during routine visits to reduce wear and ensure safety:

  1. Visual inspection of steps and comb plates for cracks or sharp edges
  2. Cleaning the moving path, removing dust and small debris
  3. Basic lubrication of rollers and manufacturer-marked points
  4. Testing upper and lower emergency stop switches
  5. Checking for unusual noise, vibration, and proper handrail alignment

Technical & Professional Steps

Performed by certified technicians, including detailed measurements and adjustments:

  • Motor: Current, temperature, vibration check; insulation and connections monitoring.
  • Gearbox: Oil level/quality check, gear wear, shaft clearance.
  • Step chain/rails: Tension and alignment measurement, roller status, lubrication.
  • Safety brake: Braking force, air gap measurement, response test at reference speeds.
  • Control panel/Drive: Reviewing error logs, relays, fuses, wiring, and drive parameters.
  • Sensors: Calibration of speed, comb plate, chain, and limit switches.
  • Electrical: Earthing, leakage current, cable and grounding integrity check.

In case of abnormal wear (such as gearbox oil discoloration or bearing noise increase), corrective action is defined and recorded in the service report.

Escalator Motor and Gearbox Inspection

Maintenance Plan & Scheduling

  • Daily: Cleaning, visual check of comb plates and steps, ensuring no foreign objects.
  • Monthly: Complete lubrication, emergency stop test, vibration and noise monitoring.
  • Quarterly: Motor/gearbox/brake inspection, control panel and sensor check.
  • Yearly: Full inspection, replacement of worn parts, control system calibration.

Escalator Brake and Sensor Testing

Escalator Overhaul (General Service)

Overhaul is carried out every 3–5 years (depending on usage). It includes complete mechanical/electrical inspection, replacement of critical parts, software/drive parameter updates, and restoring performance close to new. Though costly, it is often more economical than replacing the entire system.

Technical Table of Escalator Services

Service TypeIntervalMain ActionsBenefits
DailyEvery dayCleaning, visual check of comb/steps, start/stop verificationPrevents surface-level issues and ensures basic safety
MonthlyEvery 30 daysLubricating bearings/chains, emergency stop test, vibration monitoringReduces wear and prevents small failures
QuarterlyEvery 3 monthsMotor/gearbox/brake inspection, control panel and sensorsEnsures safety of critical components
YearlyEvery 12 monthsComprehensive mechanical/electrical check, replacement, calibrationIncreases lifespan and reduces major failures
OverhaulEvery 3–5 yearsComplete restoration, critical part replacement, control upgradeLong-term reliability and near-new performance

Service Handover Checklist

After each service, the following should be provided to the client:

  • Service report listing performed actions and replaced parts
  • Brake, sensor, and drive parameter test results
  • Lubrication and leakage status with next-service recommendations
  • Before/after photos of critical areas (if required)

Common Faults & Warning Signs

  • Unusual noise/squealing: Lack of lubrication or bearing failure
  • Noticeable vibration on handrail: Roller issues or misalignment
  • Intermittent stops: Sensor sensitivity or control panel fault
  • Oil leakage under gearbox: Worn seals or gaskets

In case of these symptoms, immediate shutdown and urgent inspection are recommended.

FAQ

How often should escalators be serviced? Depends on traffic; usually monthly/quarterly with annual full service.

Does maintenance reduce energy consumption? Yes, proper lubrication and drive adjustment reduce motor load.

What is the difference between service and overhaul? Service is preventive and routine; overhaul is a full restoration with major replacements.

Contact & Consultation

For consultation and cost inquiry of escalator service, contact Lion Escalator. Our technical team provides professional services in Iran, Oman, Iraq, and the UAE.

  • Escalator Service
  • Escalator Service Costs
  • Escalator Service Contract
  • Escalator Maintenance
  • Escalator Overhaul
  • Escalator Repair
  • Escalator Inspection
  • Escalator Spare Parts
  • Escalator Service Standards
  • Monthly Escalator Service
  • Quarterly Escalator Service
  • Annual Escalator Service
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