Complex sentence: After being repainted its "Caves Express" blue livery at Petersham in 1967, it remained serviceable until June 1975, its last journey being its transfer from Enfield to Thirlmere hauling 7100 and 2606.
Split into simpler sentences: After being repainted into "Caves Express" blue livery at Petersham in 1967, it remained serviceable until June 1975. Its last journey was from Enfield to Thirlmere hauling 7100 and 2606.