Specifications include, but are not limited to: A. Unit must be powered by an electric start, liquid cooled, industrial diesel engine (John Deere 4045D-30, Cummins 4B3.9 (counterbalanced) or approved equal) developing not less than 74-HP. Power unit must include a fuel tank large enough to insure 10- hours, minimum, of uninterrupted operation at full machine capacity. B. Engine must be equipped with: a. High temperature shutdown. b. Low oil pressure shutdown. c. Full gauge package, to include volt or ammeter, oil pressure, fuel level, temperature and hour meter with oil or alternator excited sensor. d. Keyed ignition. e. Fuel line filter and shutoff. f. Air intake filter, pre-cleaner. g. Engine must be enclosed in a protective cover with easily accessible panels to allow for regular maintenance and servicing.