A work vehicle having an implement includes an engine control unit for controlling an engine and detecting an abnormal state of the engine, a PTO transmission mechanism for transmitting power from the engine to the implement, a PTO clutch for switching ON/OFF power transmission by the PTO transmission mechanism and a clutch control circuit configured to render the PTO clutch OFF based on a detection signal outputted by the engine control unit at time of detection of the abnormal state.

A torque transmission system (20) for transmitting torque from a prime mover (22) along a drivetrain includes a clutch device (28) configured to accept a torque input from the prime mover, an intermediate pulley (32), a belt (30) operatively engaged between the clutch device and the intermediate pulley, an angle gearbox (36) configured to change a spatial orientation of torque transmitted between an input and an output of the angle gearbox, a driveshaft (34) operably engaged between the intermediate pulley and the angle gearbox, and an output device (38) configured to accept a torque output from the angle gearbox. The clutch device is located upstream from the intermediate pulley and the angle gearbox along the drivetrain.

An industrial work vehicle including a frame and a first shaft rotatably connected to the frame via first and second bearings. The work vehicle further includes a second shaft rotatably positioned in line with the first shaft and connected to the first shaft via a coupling. The second shaft is further connected to the frame via a third bearing. The coupling includes a first connection and a second connection. The first connection connects the first shaft to the second shaft via a fourth bearing adapted to support a radial load and to accommodate an axial rotation and an angular misalignment of one shaft with respect to the other shaft. The second connection connects the first shaft to the second shaft via flange elements which are interconnected via an intermediary element adapted to transmit a torque and to accommodate a misalignment of one shaft with respect to the other shaft.

Methods and systems relating to an internal combustion engine support bracket are disclosed. The engine bracket includes a housing defining a fluid passage configured to be in fluid receiving communication with an upstream aperture of the housing and in fluid providing communication with a downstream aperture of the housing. The engine bracket also includes at least one mounting platform with fasteners configured to removably engage an accessory device of an internal combustion engine.

A drive mechanism comprises a flywheel, a flywheel damper removably connected to the flywheel, a pump drive, and an intermediate shaft. The pump drive comprises a housing, an input shaft mounted to the housing for rotation relative thereto about an axis of rotation, and a seal surrounding the input shaft to establish a sealed connection therewith. The intermediate shaft is co-axial with the input shaft relative to the axis of rotation and removably connected to the flywheel damper and the input shaft. The seal is replaceable. An associated method for replacing the seal is disclosed.

An auxiliary power unit system for mobile service vehicles is provided that can provide DC power to DC-powered equipment. The system attaches to the power take-off port of the transmission and can provide power to the DC-powered equipment without idling the engine of the mobile service vehicle, thereby reducing fossil fuel consumption and engine exhaust emissions.

Methods and apparatus to use a switched-mode power supply as a source of power in a service pack are disclosed. An example power system includes: an engine; a generator configured to generate electrical power from mechanical power delivered by the engine; a switched-mode power supply configured to convert the electrical power from the generator to output power; and control circuitry configured to: when an output load of the switched-mode power supply is a power system load, control the switched-mode power supply to provide the output power for output to the power system load; and when the output load of the switched-mode power supply is a vehicle load, control the switched-mode power supply to provide the output power for output to a vehicle electrical system connected to a vehicle energy storage device.

Skid-steer type power unit engageable with an implement using an attachment assembly including an attachment frame and a hitch. An arcuate frame member is located forwardly of the attachment frame and is engaged therewith in such a way that the frame member pivots about a vertical axis located forwardly of the frame member and generally centrally positioned relative to the attachment frame. The frame member pivots in response to actuation of a hydraulic cylinder. The power unit includes a system for transferring weight of the implement rearwardly onto the power unit. A belt-drive power-take off system on the power unit powers the implement's operation. An underbelly drop spreader is located between the front and rear wheels of the power unit and a brine delivery system distributes brine from nozzles located rearwardly of the rear wheels. A unique control panel permits operation of all systems on the power unit and implement.

Skid-steer type power unit engageable with an implement using an attachment assembly including an attachment frame and a hitch. An arcuate frame member is located forwardly of the attachment frame and is engaged therewith in such a way that the frame member pivots about a vertical axis located forwardly of the frame member and generally centrally positioned relative to the attachment frame. The frame member pivots in response to actuation of a hydraulic cylinder. The power unit includes a system for transferring weight of the implement rearwardly onto the power unit. A belt-drive power-take off system on the power unit powers the implement's operation. An underbelly drop spreader is located between the front and rear wheels of the power unit and a brine delivery system distributes brine from nozzles located rearwardly of the rear wheels. A unique control panel permits operation of all systems on the power unit and implement.

Skid-steer type power unit engageable with an implement using an attachment assembly including an attachment frame and a hitch. An arcuate frame member is located forwardly of the attachment frame and is engaged therewith in such a way that the frame member pivots about a vertical axis located forwardly of the frame member and generally centrally positioned relative to the attachment frame. The frame member pivots in response to actuation of a hydraulic cylinder. The power unit includes a system for transferring weight of the implement rearwardly onto the power unit. A belt-drive power-take off system on the power unit powers the implement's operation. An underbelly drop spreader is located between the front and rear wheels of the power unit and a brine delivery system distributes brine from nozzles located rearwardly of the rear wheels. A unique control panel permits operation of all systems on the power unit and implement.