Elevator Cabin Components:
The elevator cabin consists of the car walls, ceiling, floor, frame, limit blocks, guide shoes, top railing, door zone switch, hoistway cam, inspection box, safety window, safety gear, load weighing device, deflector sheave (for 2:1 roping) or rope anchor (for 1:1 roping), emergency lighting, sockets, fan, intercom, alarm, and control panel with function switches, display, and buttons.
Elevator Landing Components:
The landing components include hall call box, floor display, buttons, fire service box and switch, and lockout switch.
Daily Maintenance & Inspection Checklist
- Inspection Box & Control Switches
- Check the switches and buttons inside the inspection box for proper function and secure wiring.
- Switch to inspection mode and test door interlocks and safety circuits. Ensure the car responds correctly to calls.
- Verify that the top inspection mode takes priority over car and machine room inspections.
- The top inspection system should have a bistable switch to disable normal operation and automatic door control. Movement should require a continuous press button with clear directional markings.
- Emergency Stop Switch
- Must be securely installed. When activated, the elevator should stop immediately.
- Emergency stop switches should be present on the car top and in the pulley room, disabling both the elevator and the automatic doors.
- The switch should be red, bistable, and designed to prevent accidental reset.
3. Safety Window (if applicable)
- Must be securely installed and function properly.
- When opened during normal or inspection operation, the elevator should stop immediately.
- The safety window should only open from inside the car using a triangular key and be locked when closed. A safety contact should verify its locked position, preventing the elevator from operating if it’s open.
- Deflection Sheave
- Should rotate smoothly without noise. Bearings must be well-lubricated.
- Protective covers and rope jump guards should be secure to prevent foreign objects from causing misalignment.
- Car Top Railing
- Must be securely fixed. If the horizontal clearance from the car top edge exceeds 0.3m, install a railing within 0.15m of the edge.
- Door Zone Switch
- Must function reliably, with no loose connections.
- Alignment with the door zone plate should not exceed a 3mm deviation.
- Floor Leveling Accuracy
Should be within ±10mm. If misalignment is excessive, adjust the door zone plate, switch, or relearn hoistway positioning.
- Wiring & Connectors
- Check for loose or damaged connections in the car and car top junction boxes.
- Limit Blocks & Guide Shoes
- Ensure they are firmly attached.
- Check for wear or aging in rubber limit blocks and guide shoe inserts. Worn parts can affect clearances between the door vane, door rollers, sills, and safety gear wedges, potentially leading to malfunctions.
- For oil-based guide shoes, verify the oil wick provides adequate lubrication. Replace if worn.
- Safety Gear
- Ensure all components are intact and operate smoothly.
- The gear housing and wedge blocks should be free of damage and oil contamination.
- The wedge blocks on both sides must engage simultaneously.
- Verify that the safety gear clearance with the guide rail is sufficient.
- The electrical safety switch should cut off power when activated and should only reset after the safety gear is fully released.
- Toe Guard & Sill
- Must be securely attached.
- The toe guard width should be at least equal to the door opening width.
- The lower section should slope downward at an angle greater than 60°, with a horizontal projection of at least 20mm. The vertical height must be at least 0.75m.
12. Emergency Devices
- Ensure the intercom, emergency light, and alarm function properly.
- Emergency devices must remain powered by a continuously charged backup power source in case of a power failure.
- Load Sensor
Test by simulating an overload condition. The car display should show an overload warning, the buzzer should sound, and the doors should remain open until the overload is cleared.
- Car-Counterweight Clearance
- Should be at least 50mm.
- The car must have a nameplate displaying the rated load, capacity, and manufacturer information.
- Lighting & Ventilation
- Check the operation of car lights, fan, and car top lighting and outlets.
- The fan should run quietly.
- Power should remain available even if the main supply is disconnected.
- Car lighting must provide at least 50 lux illumination.
16. Control Panel & Buttons
- Ensure all switches and buttons function properly without sticking or damage.
- Floor display should be clear and accurate.
- Hall Call Buttons & Displays
- Check each floor’s call buttons and displays for damage or malfunction.
- Test by pressing the opposite direction call after arrival; the button should register and remain lit.
- Press the same direction call button while closing; the elevator should reopen.
18. Firefighter & Lockout Functions
- Firefighter switch should be located at the main landing or designated evacuation level. It should be bistable and require manual reset.
- The fire service box must have a protective glass cover with clear labeling.
- When activated, call and selection functions should be disabled. The car should return to the designated fire recall floor and remain there with doors open.
- The lockout switch should cancel all hall calls. The elevator should complete its last car call, return to the designated lockout floor, and remain there until the lockout is reset.
This checklist ensures safe and efficient elevator operation while maintaining compliance with industry standards.
