Complex sentence: The trainset was fitted with a wiring system allowing the Class 67 to work in push pull mode with the DVT and Mk.3 coaches, locomotive 67029 was also modified to include a remotely activatable fire-surpression system.
Split into simpler sentences: The trainset was fitted with a wiring system allowing the Class 67 to work in push pull mode with the DVT and Mk.3 coaches. Locomotive 67029 was also modified to include a remotely activatable fire-surpression system.