Erection Or Elevator

1. Pre-Installation Preparation

Design Review:
- Confirm the elevator type (passenger, freight, service, etc.) and specifications.
- Review architectural drawings and dimensions of the elevator shaft.
- Check load capacity, speed, and number of floors to be served.
Site Preparation:
- Ensure the shaft is clean and accessible.
- Verify alignment and dimensions of the shaft as per design requirements.
- Ensure the pit is constructed with appropriate waterproofing and load-bearing capacity.
Materials & Equipment Check:
- Inspect elevator components (guide rails, machine motor, cabin, counterweight, etc.).
- Verify the availability of installation tools (cranes, alignment tools, welding equipment).

2. Step-by-Step Erection Process

A. Pit Installation

Buffers Installation:
- Fix buffers (spring or oil type) at the bottom of the pit to absorb shock in case of cabin overtravel.
Base Plating:
- Install base plates and ensure they are level.

B. Guide Rail Installation

Install guide rails for both the cabin and the counterweight.
Use laser alignment tools to ensure vertical accuracy.
Secure rails to the shaft walls with rail brackets at specified intervals.

C. Machine Room Setup

Mount the hoisting machine (motor, sheave, and brake) on the machine beam in the machine room.
Ensure proper alignment and secure bolting of the machine.

D. Suspension System Installation

Install the wire ropes or belts over the sheave and connect them to the cabin and counterweight.
Balance the counterweight according to the cabin weight specifications.

E. Elevator Cabin Installation

Assemble the elevator cabin on-site if not pre-fabricated.
Use a temporary lifting mechanism to position the cabin within the shaft.
Secure the cabin to the guide rails using guide shoes or rollers.

F. Counterweight Installation

Assemble and install the counterweight frame.
Insert counterweight blocks into the frame and connect it to the suspension system.

G. Door Installation

Fix landing doors at each floor.
Install the cabin door and ensure its alignment with landing doors.
Test the door locking system for safety and operation.

H. Electrical Installation

Install the control panel in the machine room.
Connect wiring between the cabin, control panel, and landing stations.
Integrate safety circuits, overload sensors, and emergency systems.

I. Testing & Adjustment

Conduct no-load and load testing of the elevator to verify smooth operation.
Adjust braking systems, speed regulators, and leveling mechanisms.
Test safety devices, such as overspeed governors and emergency stop systems.

J. Finishing Work

Install ceiling, lights, and flooring inside the cabin.
Ensure all exposed parts are covered for aesthetic and safety reasons.
Clean up the site and finalize documentation.

3. Post-Installation Checks

Perform inspection as per local regulatory requirements.
Obtain certification from relevant authorities.
Train building staff on elevator operation and emergency protocols.

4. Maintenance Schedule

Regular lubrication of moving parts.
Routine safety device checks.
Annual inspection and certification.

This process ensures the elevator is safe, efficient, and compliant with applicable standards like EN 81, ASME A17.1, or equivalent local codes.