British Rail Train-Crew Manual - Class 47
Locomotives Fault Finding Data - Includes 47401 - 47420 and 47/7.
Issue Date January 1980 - BR
33056/12 Issue 3.
More information can be found here
Wikipedia - British Rail Class 47 - The
Class 47s Website Class47.co.uk
More Information Regarding Preserved Class 47 Locomotives can be
found on the following websites: