Many earlier DMU types had a booklet from the 33003 series issued specifically for them, none have been found for these vehicles.
This March 1961 editon covered all Blue Square vehicles - BR 33003-92. A companion to this was a "Preparation and Disposal" booklet BR 33003/211.
In 1968 the booklets were replaced by a three part set for Blue Square vehicles Mechanical Transmission): BR 33003/247 1 - General Data And Equipment BR 33003/248 2 - Driving Instructions Including Standard Preparation and Disposal Duties BR 33003/249 3 - Fault Finding Data and Charts
In the early seventies the 33003 series was replaced by the more generic 33056 series of drivers manuals, no longer specific to any coupling code.
