ENGINE 4.5 Litter equipped with 138horsepower minimal. Unit must be able to sweep a consistent route of no less then 8 hours on a single tank of fuel. The Def tank must be no less than 6.8 US Gallons and mounted Opposite side of fuel fill cap. Engine must be a minimum of a Tier IV Final rating and a maximum of a Step V rated engine. ________________________________________________________________________________________________________________________ _______________________________________________________________________ DRIVE TRAIN The sweeper must have a closed-circuit hydrostatic drive system on the front differential equipped with a hydraulic motor and a load sense piston pump that can be set automatically with variable speeds included between 0 and 20 mph. The forward and reverse rears must be engaged by selecting the corresponding gear with the specific shift control located on the steering column in the cab. Hydrostat controls selected with your foot will not be allowed due safety and ergonomic discomfort for the operator. When reverse is engaged, the reverse indicator lights on the rear must be lit and the backup alarm simultaneously environments to become aware. ________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________ ________________________________________________________________________ HYDRAULIC SYSTEM Both the driver and service hydraulics systems must depend on a single oil tank located in an easily accessible area behind the cab. The tank must be provided with a level and temperature indicator located on the side of the machine and clearly visible from the ground. The drive and service hydraulic systems must share a single filter positioned in the upper part of the tan, whose cartridge can be quickly and simply be replaced without any oil loss. A pressure switch must be installed on the filter which allows the operator to be informed in real time by means of an indicator lamp in the cab showing any filter blockage. A float must send an electrical signal to the cab to inform the operator of any oil level reduction due to probable losses.