not sure why you have "Difficulty understanding that allegation"......
the hoses were for the brakes and I quote, "The disablement of the brakes resulting from an earlier application of an excessive hydraulic pressure"
http://www.railwaysarchive.co.uk/documents/RSSB_Tebay2004.pdf
http://news.bbc.co.uk/1/hi/england/4816206.stm
Prosecutor Robert Smith QC said Connolly, the boss of MAC Machinery Services, had deliberately disconnected the hydraulic brakes on two wagons because it was cheaper than repairing the wagons properly.
Connolly had deliberately disconnected the brakes on the two wagons because the hydraulic systems were in such a bad way they would not work properly in conjunction with the crane.
He then filled cables connecting the crane - usually filled with hydraulic brake fluid - with ball bearings, giving the impression everything was above board.
Rail boss Mark Connolly, 44, of north Wales, and crane operator Roy Kennett, 29, of Maidstone, Kent, were each found guilty of four counts of manslaughter.
On Friday, Connolly was jailed for nine years and Kennett for two years at Newcastle Crown Court.