Specifications include, but are not limited to: 2.MODEL:Tractor(s) shall be a current production model at the time of delivery. They shall be sized appropriately, engine/PTO HP, hydraulic flow, and weight, to operate the requested mowers. One size/series of tractor may be supplied for all requested, provided it is sized to meet the most demanding mowing equipment. The minimum shipping weight shall be 8500 pounds without loaded tires and counterweights, or attachments. Manufacturers Certificates of Origin shall be provided to Central Garage at the time of delivery, for each unit delivered.3.USAGE:Tractor(s) will be used for roadside mowing with various types of mowers or combination of mowers. They may be equipped occasionally with other roadside maintenance attachments such as hole augers, post drivers, or brooms. 4.ENGINE:Diesel, four cylinders minimum to produce not less than 85 PTO HP at manufacturers rated speed as stated in the Nebraska and OECD tractor test data for 2020: Shall be equipped with a cold weather starting aid, such as a 110-volt engine block heater.Shall have a dry type air cleaner.Shall have a sound suppressant muffler, if exhaust is vertical, a 90-degree elbow shall be installed at the top to keep water out of the muffler.Engine shall be filled with extended life coolant with protection set to -35 degrees Fahrenheit.Machines shall have an alarm system (lights and/or audio) to warn the operator of high coolant temperature and low oil pressure. Low oil pressure shut down is acceptable if available. 5.TRANSMISSION:Shall be fully synchronized, manual with not less than 16 speeds forward and 16 speeds in reverse: Shall have a wet disc clutch.Shall have power shift within range and full synchronized range shift.Shall have hydraulic, power (not clutching) left hand reverser.Shall have positive locking position.