Chennai Metro Update: Tenders invited for providing overhauling services to CMRL Rolling Stock in Koyambedu depot

Chennai Metro Rail Limited (CMRL) has invited digitally signed open e-tender through e-procurement portal from reputed, experienced and financially sound maintenance service contractors/service providers through National Competitive Bidding on single stage two envelope/Packet system, (technical & financial) with initial filter for the works as detailed below.

  • Tender Reference Number: CMRL- RS-IOH-01-2022
  • Name of Work: Providing Overhauling Services to CMRL Rolling Stock in Koyambedu Depot
  • EMD: INR 9,86,000/-
  • Period Of Work: 1825 Days 
  • Document Download / Sale Start Date: 08-Apr-2022 
  • Document Download / Sale End Date: 09-May-2022 
  • Bid Submission Start Date: 26-Apr-2022
  • Bid Submission End Date: 09-May-2022 
  • Bid Opening Date: 10-May-2022 
  • Pre Bid Meeting Date: 18-Apr-2022

Rolling stock Overhauling Services – Technical: 

The Technical side of Rolling stock Overhauling Services involves the following activities:

  • Preparation of train allocated by CMRL for overhauling by covering the floor, removing the panel covers, loosening of fasteners, etc., as required.
  • Removal of sub-system parts required to be overhauled or replaced.
  • Preparation of Spares such as motors, bogies, batteries, etc., required for train overhauling by overhauling/ re-conditioning them.
  • Testing of Overhauled Spares before fixing them in train.
  • Replacement or Re-fixing of overhauled spares in train as per stipulated procedure.
  • Checking the Pneumatic tightness of Brake cylinders, Bogies and as well as train.
  • Adjustment of Floor height as per standards after completion of overhauling.
  • Thorough inspection of the whole train and attending the rework of open points.
  • Functionality check of sub-systems and train.
  • Conducting dynamic tests in Depot test track for any abnormality.
  • Dynamic testing in mainline for at least 200KMs for any abnormality.
  • Requesting, Receiving and Returning the spares to CMRL stores before and after overhauling.
  • Management of Consumables, Hand tools and special tools required for day to day activities in overhauling.
  • Documenting all the activities which were done during overhauling.
  • Recording all the activities, readings/measurements taken and all the materials transactions during overhauling in E2M application software.
  • Submitting progress reports on weekly basis and after completing each train.

Rolling stock Overhauling Services – Non-Technical:

The Non-Technical side of Rolling stock Overhauling Services includes the following activities:

  • Heavy Cleaning of Exterior side walls with prescribed chemical solvents. 
  • Heavy Cleaning of Roof corrugated sheets with prescribed chemical solvents.
  • Cleaning of Rain gutters, Front Cab Masks, Spoilers, etc.
  • Cleaning & Polishing of Gangway corrugated bellows, Secondary suspension, and other rubber parts.
  • Cleaning & Polishing of Door Leaves.
  • Cleaning of Windshields, Sunscreens, Luggage rack glasses, Drought glasses, Window glasses and other glass parts.
  • Cleaning of FRP panels, HVAC & Light Diffusers.
  • Removal of HVAC Duct panels and Cleaning of HVAC Ducts throughout the train including cab.
  • Removal of Grab handles and Cleaning of Grab handles, Grab poles & Quadrupoles.
  • Re-Fixing of all panels and parts removed for Cleaning.
  • All Seat fabrics shampooing.
  • Heavy Cleaning & Stains removal of Interior Floor with prescribed Chemicals.
  • Application of Protective floor coating in interior.
  • Cleaning of all electrical cubicles.
  • Car body Underframe cleaning.
  • Rust removal & re-painting of rusted parts.
  • Cleaning of Bogie & Sub-parts.
  • Cleaning of other required Train Spares.
  • Removal & Replacement of Complete Exterior Signage.
  • Removal & Replacement of damaged Interior Signage.

The complete documents can be downloaded from http://eprocure.gov.in/eprocure/app.


Source: CMRL-Tender | Image Credit (representational): CMRL