Machinery maintenance and repair services for heavy equipment, namely, marine equipment maintenance and repair, off-highway equipment maintenance and repair; on-site repair, removal and reinstallation of power transmission, and drivetrain products; remanufacturing exchange programs for power transmission and drive train products for OEM's; remanufacture and rebuilding of power transmission, and drivetrain products that have been worn or partially destroyed; transmission up-fit and repackaging services to engine manufacturers, distributors, wholesalers, OEMs and end-users; In-shop repair services for heavy equipment, namely, transmissions, cranes, draglines, drilling rigs, mud pumps, rock crushers, tub grinders, dredges, stationary and mobile power units, and marine units; On-site field repair service and on-site troubleshooting and technical support for heavy equipment, namely, transmissions, cranes, draglines, drilling rigs, mud pumps, rock crushers, tub grinders, dredges, stationary and mobile power units, torque converters, PTO's (power take-offs), and marine units; Manufacturing and installation of heavy equipment, namely, transmissions, cranes, draglines, drilling rigs, mud pumps, rock crushers, tub grinders, dredges, stationary and mobile power units, torque converters, PTO's (Power take offs), and marine units;