Abstract: Hydraulic flow to tractor attachments such as a sweeper, snow thrower, breaker, auger or cold planer may be increased by diverting pressurized hydraulic fluid from the auxiliary pump. A diverter valve between the auxiliary pump and the auxiliary circuit of the loader hydraulic system may direct flow to either the backhoe hydraulic system, the rockshaft hydraulic system, or the auxiliary circuit of the loader hydraulic system. The additional flow from the auxiliary pump is provided at a mid-inlet position and is not available to the loader boom or bucket circuits, to preserve tractive horsepower needed during loader work.

Abstract: A speed control system for a utility vehicle, the vehicle having a forward-facing driving position and a rearward-facing seat, includes a creep control system for moving the utility vehicle, controlled from the rearward-facing seat. The vehicle includes a speed-controllable transmission operable to output power to drive a wheel. The vehicle includes a creep speed control actuator located adjacent to the rearward-facing seat and a creep speed control system operatively connected to the actuator and to the transmission. The system converts movement of the actuator to speed change of the transmission. The transmission can be a mechanically or electronically controlled hydrostatic transmission, or an electronically controlled reverser transmission.

Abstract: In a tractor having a frame, a grille has a hollow frame fastened to a front portion of the frame of the tractor, so as to protect a radiator of the tractor. Two brackets are provided, each of which is mounted to the front portion of the frame of the tractor and each of which projects frontwardly from the frame of the tractor, through an aperture in a lower portion of the frame of the grille. A guard is provided, which is fastened to the brackets, in front of the grille, so as to protect the grille. The hollow frame of the grille is fastened to the front portion of the frame of the tractor only at the lower portion of the frame of the grille. The hollow frame of the grille is molded, as by rotational molding, from a polymeric material, for which cross-linked polyethylene is preferred. The brackets and the guard are made of steel.

Abstract: A utility vehicle having a front loader bucket includes shaped towers and shaped boom arms connected to the towers, and a sloped hood and a shaped fuel tank which all increase the operator's view of the bucket, wheels; axle and ground for close control of the utility vehicle bucket with respect to external structures and surfaces. The towers extend substantially vertically from the utility vehicle chassis to a mid-location wherein the towers are offset inwardly to top ends thereof. The boom arms are connected to the top ends of the towers, extend forwardly, and are offset outwardly to a mid-location of the boom arms wherein the boom arms then extend forwardly to be connected to the bucket.

Abstract: A rear-mounted implement mounting system includes semi-cylindrical seats open upwardly and mounted on a lower back portion of a utility vehicle chassis that receive bar members located on a facing lower part of the rear-mounted implement. The utility vehicle chassis further includes semi-cylindrical receivers open in a rearward direction and adjacent cylinder portions open laterally. The receivers guide cylindrical bosses, located on an upper portion of the rear-mounted implement, into alignment with the cylinder portions, when the rear-mounted implement is pivoted upwardly by extending the boom cylinder of the rear-mounted implement. Connecting pins can be slipped through the cylindrical bosses and cylinder portions to lock the rear-mounted implement to the utility vehicle chassis. An operator remaining in the vehicle cab or operator station can easily operate the mounting system.

Abstract: A hydraulic fluid diverting arrangement for a utility vehicle provides additional pressurized hydraulic fluid supply to an installed backhoe attachment by diverting hydraulic fluid from the unused rockshaft or three-point hitch of the utility vehicle. A solenoid operated valve manifold is switch actuated by contact from the backhoe during installation of the backhoe to the utility vehicle and diverts hydraulic fluid flow from rockshaft hydraulic cylinders to backhoe hydraulic cylinders. The system increases the available horsepower to the backhoe by using hydraulic fluid otherwise dedicated to the idle rockshaft.

Abstract: In a tractor having a frame, a grille has a hollow frame fastened to a front portion of the frame of the tractor, so as to protect a radiator of the tractor. Two brackets are provided, each of which is mounted to the front portion of the frame of the tractor and each of which projects frontwardly from the frame of the tractor, through an aperture in a lower portion of the frame of the grille. A guard is provided, which is fastened to the brackets, in front of the grille, so as to protect the grille. The hollow frame of the grille is fastened to the front portion of the frame of the tractor only at the lower portion of the frame of the grille. The hollow frame of the grille is molded, as by rotational molding, from a polymeric material, for which cross-linked polyethylene is preferred. The brackets and the guard are made of steel.

Abstract: A utility vehicle having a front loader bucket includes shaped towers and shaped boom arms connected to the towers, and a sloped hood and a shaped fuel tank which all increase the operator's view of the bucket, wheels, axle and ground for close control of the utility vehicle bucket with respect to external structures and surfaces. The towers extend substantially vertically from the utility vehicle chassis to a mid-location wherein the towers are offset inwardly to top ends thereof. The boom arms are connected to the top ends of the towers, extend forwardly, and are offset outwardly to a mid-location of the boom arms wherein the boom arms then extend forwardly to be connected to the bucket. Hydraulic cylinders connect the boom arms to the towers between mid-locations of the towers and mid-locations of the boom arms. A fuel tank overlies a driver-facing surface of the engine compartment and towers and includes gaps in the fuel tank to allow visibility of the front axle and ground beneath the utility vehicle.

Abstract: A rear-mounted implement mounting system includes semi-cylindrical seats open upwardly and mounted on a lower back portion of a utility vehicle chassis that receive bar members located on a facing lower part of the rear-mounted implement. The utility vehicle chassis further includes semi-cylindrical receivers open in a rearward direction and adjacent cylinder portions open laterally. The receivers guide cylindrical bosses, located on an upper portion of the rear-mounted implement, into alignment with the cylinder portions, when the rear-mounted implement is pivoted upwardly by extending the boom cylinder of the rear-mounted implement. Connecting pins can be slipped through the cylindrical bosses and cylinder portions to lock the rear-mounted implement to the utility vehicle chassis. An operator remaining in the vehicle cab or operator station can easily operate the mounting system.

Abstract: A hydraulic fluid diverting arrangement for a utility vehicle provides additional pressurized hydraulic fluid supply to an installed backhoe attachment by diverting hydraulic fluid from the unused rockshaft or three-point hitch of the utility vehicle. A solenoid operated valve manifold is switch actuated by contact from the backhoe during installation of the backhoe to the utility vehicle and diverts hydraulic fluid flow from rockshaft hydraulic cylinders to backhoe hydraulic cylinders. The system increases the available horsepower to the backhoe by using hydraulic fluid otherwise dedicated to the idle rockshaft.

Abstract: A speed control system for a utility vehicle, the vehicle having a forward-facing driving position and a rearward-facing seat, includes a creep control system for moving the utility vehicle, controlled from the rearward-facing seat. The vehicle includes a speed-controllable transmission operable to output power to drive a wheel. The vehicle includes a creep speed control actuator located adjacent to the rearward-facing seat and a creep speed control system operatively connected to the actuator and to the transmission. The system converts movement of the actuator to speed change of the transmission. The transmission can be a mechanically or electronically controlled hydrostatic transmission, or an electronically controlled reverser transmission.

Abstract: A control system sets a set maximum speed of a utility vehicle, below the capable maximum speed of the vehicle, and recalibrates speed output signals corresponding to the set maximum speed. The system includes a microcontroller and a user-operated vehicle speed actuator, signal-connected to the microcontroller. The speed actuator is calibrated to actuate speeds, via the microcontroller, in a range from a minimum speed to a maximum speed. A user-operated speed set activator is used in conjunction with a ground speed sensor to set the set maximum speed. The microcontroller records the new maximum speed of the vehicle, and recalibrates the pedal position according to the new maximum speed.

Abstract: A hydraulic system for a utility vehicle includes provision for controlling two hydraulic implements or tools alternately with a single control lever. The hydraulic system includes a first hydraulic implement and a second hydraulic implement both hydraulically flow-connected to a diverter valve. A source of pressurized hydraulic fluid is connected to a selective control valve, operated by a control lever, and the selective control valve is hydraulically flow-connected to the diverter valve. The diverter valve is selectively operated to connect the control valve to either the first or to the second hydraulic implements. An implement-select actuator is signal-connected to the diverter valve and configured for alternately operating the first and second hydraulic implements.

Abstract: A rear-mounted implement mounting system includes semicylindrical seats open upwardly and mounted on a lower back portion of a utility vehicle chassis that receive bar members located on a facing lower part of the rear-mounted implement. The utility vehicle chassis further includes semicylindrical receivers open in a rearward direction and adjacent cylinder portions open laterally. The receivers guide cylindrical bosses, located on an upper portion of the rear-mounted implement, into alignment with the cylinder portions, when the rear-mounted implement is pivoted upwardly by extending the boom cylinder of the rear-mounted implement. Connecting pins can be slipped through the cylindrical bosses and cylinder portions to lock the rear-mounted implement to the utility vehicle chassis. An operator remaining in the vehicle cab or operator station can easily operate the mounting system.