Multi-Track Trolley (MTT)

The Multi-Track Trolley carts, used for emergency response in MRT tunnels, required scheduled preventive maintenance. Over time, exposure to underground environmental conditions caused issues in braking efficiency and mechanical wear.
The maintenance work was conducted on-site within tunnel environments, often under time constraints and direct supervision from the customer. Given the critical nature of these trolleys for evacuation and response, all tasks required precision and zero tolerance for error