Complex sentence: The ship was reduced to reserve status on 1 July 1930 in preparation for a lengthy overhaul at Devonport from September 1930 to February 1932, focused on refitting her machinery and re-tubing her boilers.
Split into simpler sentences: The ship was reduced to reserve on 1 July 1930 in preparation for a lengthy overhaul at Devonport. It lasted from September 1930 to February 1932 and was focused on refitting her machinery and re-tubing her boilers.