Power Take-Off 3 : A device used to transmit power via a clutch arrangement from an internal combustion engine to auxiliary equipment such as pumps, hydraulic oil pumps for aerial equipment, or electric generators
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}