EMEF’s activities apply to a great variety of vehicles, which include the entire CP fleet (Locomotives, Railcars, Passenger Cars and Freight Cars) as well as other clients’ vehicles (Wagons, Heavy Duty machinery and light maintenance of way).

EMEF’s activities span four different fields:

  1. Repairs
  2. Maintenance
  3. Reconditioning
  4. Freight car construction


1. Repairs take place at large scale facilities, named Workshop Groups. These interventions are mostly anticipated and programmed, with the exception of accidents, which cause bigger periods of rolling stock’s immobilization.

2. Maintenance takes place at smaller scale sets of facilities, which form the Maintenance groups. This activity includes the daily maintenance, preventive maintenance as well as corrective maintenance, due to accidental causes, malfunctions, vandalism, among others.

The activity known as maintenance takes place according to the rolling stock characteristics, and made available to the Maintenance Workshops, with the exception of V1 – Maintenance Level 1 Interventions.

Under the planned maintenances there are preventive procedures, with periodic interventions, measured by different levels defined upon the intervention’s nature:

(V5 e VD) Level 5 Intervention and Daily Intervention, which consist of basic procedures, checks and tests, simple replacements of bulbs and other replenishable items. Their regularity spans from one to five days, with a total immobilization time from one to three hours;

(V4) Level 4 Intervention, specialized verification and replacement of lubricant oils, with a cadency of 15 to 30 days, 10.000 to 15.000 km, with an immobilization time estimated in four hours;

(V3 e VE) Level 3 Intervention and Special Intervention, these are meant to control and tune components, replace lubricants and other standard maintenance procedures, in a time span of one to six months, 20.000 or 50.000 km, with an entire day of immobilization for rolling stock;

(V2 e VL) Level 2 Intervention and Limited Intervention, which are meant to replace a smaller number of components, in a six month basis, 50.000 to 70.000 km, with a immobilization span of 2 working days;

The Workshop Groups also hold periodical more complex Maintenance interventions:

(V1-VG) Level 1 Intervention e Global Intervention, for the replacement of a large number of components, in order to recondition the rolling stock’s life expectancy potential, they are performed in periods of one year to 18 months, from 200.000 to 300.000 km, with a total immobilization span of ten to fifteen working days.

There are also emergency Maintenance interventions, originated by Malfunctions (VAV) or (VAC) Accidents occurred with rolling stock, like derailments, acts of vandalism, and other accidents or anomalies.

These interventions are part of a very specific segment of Maintenance activity, which are comprised of two types of intervention:

Prevention, characterized by an operational structure’s permanent availability, in terms of human and technical resources, ready to intervene 24/7, every day of the year;

Emergency, interventions on the railway itself, in occasions where it has been obstructed or when there are problems with rolling stock in the railway, caused by malfunctions or accidents which will either require the rolling stock’s towing or railing.

In order to provide these services, we have established a network of five assistance and emergency teams, with specific geographic areas of intervention defined by the railway where these interventions take place.

Contumil’s Emergency Train, Northern Area: Northern Railway line up to Pampilhosa and the remaining lines north of Pampilhosa;

Coimbra B’s Emergency Train, Central Area: from the Beira Alta Line, Lousã Line and Northern Line – Pombal to Pampilhosa – Beira Baixa railway line – Guarda to Covilhã – Western Line – Caldas da Rainha – and the Figueira da Foz and Verride branches;

Entroncamento’s Emergency Train, Central Area: Northern Line – from Setil to Pombal – Beira Baixa Line – up to Covilhã – Eastern Line e and the Cáceres branch;

Campolide’s Emergency Train, Lisbon’s Metropolitan Area: Sintra’s railway line, Cascais’ line, Cintura’s line, Northern line – up to Setil – Western Line – up to Caldas da Rainha;

Barreiro’s Emergency Train, Southern Area: Railway Lines and Southern Railway Network branches until all the way to Setil and Portalegre.


3. The Reconditioning activity consists of modernizing units or vehicles, by assembling new components and new interiors in the railway equipment, so that not only their appearance looks different, but their overall equipment is upgraded.

EMEF has developed this activity with CP’s technical expertise and support, in terms of structural calculations, with which it has provided several interventions on many railway vehicles:

Reconditioning of Multiple Electric Units (MEU)

This project comprises the complete reconditioning of 34 MEU (13 TEU + 21 QEU) units which are deployed at Cascais’ railway line. The prototype has been technically conceived by EMEF, and its execution has been assigned to Entroncamento’s Workshop Group. The reconditioning of these units goes beyond the new interiors, with particular attention dedicated to safety, comfort, information and energy saving.

The reconditioned units that have already been deployed back, are in compliance with all electromagnetic compatibility requirements, according to a third-party verification and homologation, approved by CP_Caminhos de Ferro Portugueses.

Reconditioning of Double Diesel Units

This project is aimed at the reconditioning – modernizing and remotoring – of 19 Double Diesel Units, from the 400 series passengers’ transport, deployed at the Douro railway line.
The technical conception and project execution are both GOP’s (Oporto’s Workshop Group, namely Guifões) responsibility.

One of the project leader’s main concerns was to conceive a vehicle that had very high levels of reliability and availability, therefore the MICRA system was applied (Intelligent Command Module and Malfunction Registration).

Reconditioning of ALLAN Railcars

This project is meant to undertake a full reconditioning of 21 Allan railcars from the 0300 series, deployed for passenger transportation at the Lousã railway branch. This reconditioning focused on Reliability, Safety, Maintainability, Comfort and Design.

The project’s conception took place at GOP (Oporto’s Workshop Group) and the reconditioning happened in that Group’s Workshops as well, during 1999’s first semester. The project’s conclusion came about in February, 2004.

Other Railway Vehicles
In this line of work, several other reconditioning projects took place:

VIP Coach

In order to transport the higher ranks and VIP’s in an somewhat special and fitting manner, GOE’s (Entroncamento’s Workshop Group) workshops fully reconditioned a Corail series coach. After the process’ conclusion, the vehicle was furnished with a modern multimedia room, that can hold several types of work meetings, an appropriately equipped bar and a comfortable passenger lounge.

LVR Vehicles

Between July, 1999 and April 2000, EMEF proceeded with the 2nd reconditioning phase of an additional 3 Yugoslavian railcars, belonging to the 9400 series, which were destined as light suburban passenger transportation vehicles, also known as LRV – Light Railway Vehicle. Its prototype was developed by GOP (Oporto’s Workshop Group) in 1995, to serve Mirandela’s light surface metro’s passenger service, according to a reconditioning project by then named LRV 2000.

Schindler Cars

These rolling stock were equipped with a new braking system, which significantly improves their reliability and safety aspects. This encompassed replacing a vaccuum braking system for a new compressed air braking system, installed in 61 Schindler cars. The prototype and project’s execution were taken care of by GOP’s Workshops.

0187 Steam Locomotive

Originally built at Henschel & Sohn’s facilities, in 1925’s Germany, this steam locomotive, known as “platform cleaner” due to the its posterior cylinders’ dimension, was in very bad shape, when it first entered GOP’s facilities, so that it was reconditioned and set to work again.

Several parts had to be built from scratch, sometimes even without the original plans, one example being the pony truck’s axle, a mobile part which guides the bogies. This kind of achievement could only be attained through a perfect mix of experience and innovation.

This particular reconditioning has meaningful value for the Railway National Museum’s (Museu Ferroviário Nacional) historical collection, as the locomotive is in fully working order, ready to be used in cultural or touristic activities.

4. The Freight Car Construction activity is currently characterized by the Bosnia Project, with the construction of several new freight cars and the reconditioning of others for Bosnia & Hercegovina.

It’s an historic accomplishment in terms of Innovation & Development for EMEF, by being able to strenghten their presence in the national metal-works construction sector and by putting EMEF among the international certified constructors of freight cars.