Work vehicle attachment service mode

Abstract

A method for servicing an attachment for a work vehicle. Activating a service mode that limits a rotation of a rotatable component of the attachment to a service rotation rate that rotates the rotatable component slower than an operational rotation rate when the attachment is raised to a service height. Raising the attachment to the service height. Rotating the rotatable component of the attachment at the service rotation rate to enable a service part wear inspection. Stopping the rotation to replace the service part. Lowering the attachment to an operational height. Deactivating the service mode to enable the rotatable component to rotate at the operational rotation rate.

What is claimed is: 
     
         1 . A method for servicing an attachment for a work vehicle, the method comprising:
 activating a service mode that limits a rotation of a rotatable component of the attachment to a service rotation rate that rotates the rotatable component slower than an operational rotation rate when the attachment is raised to a service height;   raising the attachment to the service height;   selectively rotating the rotatable component of the attachment at the service rotation rate to enable a service part wear inspection;   stopping the rotation to replace the service part;   lowering the attachment to an operational height; and   deactivating the service mode to enable the rotatable component to rotate at the operational rotation rate.   
     
     
         2 . The method of  claim 1 , wherein the attachment comprises a cold planer, the rotatable component comprises a drum, and the service part comprises a pick coupled to the drum. 
     
     
         3 . The method of  claim 1 , wherein the attachment comprises a brush cutter, the rotatable component comprises a blade shaft, and the service part comprises a blade coupled to the blade shaft. 
     
     
         4 . The method of  claim 1 , wherein the rotatable component is rotated in a pulsing movement. 
     
     
         5 . The method of  claim 1 , wherein the service height is set by an operator interface. 
     
     
         6 . The method of  claim 1 , further comprising sensing when the attachment is raised to the service height. 
     
     
         7 . The method of  claim 1 , further comprising setting the service height. 
     
     
         8 . A work vehicle comprising:
 a frame supported by a plurality of ground-engaging units, the ground-engaging units configured to support the frame on a surface;   a boom assembly coupled to the frame, the boom assembly comprising a pair of boom arms pivotally coupled to the frame and movable relative to the frame by a pair of boom actuators;   an attachment coupler coupled to the pair of boom arms, the attachment coupler movable relative to the frame by a pair of attachment actuators;   an attachment coupled to the attachment coupler, the attachment comprising a rotatable component;   a sensor positioned to measure when the attachment is raised from an operational height to a service height and provide a signal; and   a controller communicatively coupled to pair of boom actuators, the pair of attachment actuators, and the sensor, the controller comprising a data storage device and an electronic data processor, the data storage device configured for storing instructions that are executable by the electronic data processor to cause the electronic data processor to:
 receive the signal, 
 activate a service mode that limits a rotation of the rotatable component to a service rotation rate that rotates the rotatable component slower than an operational rotation rate when the attachment is raised to the service height, 
 selectively rotate the rotatable component of the attachment to enable a service part wear inspection, 
 stop the rotation to replace the service part, 
 lower the attachment to the operational height, and 
 deactivate the service mode. 
   
     
     
         9 . The work vehicle of  claim 8 , further comprising a hydraulic circuit communicatively coupled to the controller, the hydraulic circuit including a hydraulic pump coupled to the pair of boom actuators, and the pair of attachment actuators, the hydraulic pump delivering fluid through a plurality of flow paths, the plurality of flow paths coupled to the pair of boom actuators, the pair of attachment actuators, and at least one proportional valve, the controller configured to selectively adjust the at least one proportional valve as a function of an input signal corresponding to a desired attachment configuration, the controller automatically controlling the at least one proportional valve to achieve the desired attachment configuration. 
     
     
         10 . The work vehicle of  claim 8 , wherein the work vehicle comprises a skid steer, the attachment comprises a cold planer, the rotatable component comprises a drum, and the service part comprises a pick. 
     
     
         11 . The work vehicle of  claim 8 , wherein the work vehicle comprises a skid steer, the attachment comprises a brush cutter, the rotatable component comprises a blade shaft, and the service part comprises a blade coupled to the blade shaft. 
     
     
         12 . The work vehicle of  claim 8 , wherein the rotatable component is rotated in a pulsing movement. 
     
     
         13 . The work vehicle of  claim 8 , wherein the work vehicle comprises a skid steer, the attachment comprises a mulching head, the rotatable component comprises a drum, and the service part comprises a tooth coupled to the drum. 
     
     
         14 . A work vehicle comprising:
 a frame supported by a plurality of ground-engaging units, the ground-engaging units configured to support the frame on a surface;   a boom assembly coupled to the frame, the boom assembly comprising a pair of boom arms pivotally coupled to the frame and movable relative to the frame by a pair of boom actuators;   an attachment coupler coupled to the pair of boom arms, the attachment coupler movable relative to the frame by a pair of attachment actuators;   an attachment coupled to the attachment coupler, the attachment comprising a rotatable component;   a sensor positioned to measure when the attachment is raised from an operational height to a service height and provide a signal; and   a controller communicatively coupled to pair of boom actuators, the pair of attachment actuators, and the sensor, the controller comprising a data storage device and an electronic data processor, the data storage device configured for storing instructions that are executable by the electronic data processor to cause the electronic data processor to:
 receive the signal, 
 limit a rotation of the rotatable component to a service rotation rate that rotates the rotatable component slower than an operational rotation rate when the attachment is raised to the service height, 
 selectively rotate the rotatable component of the attachment to enable a service part wear inspection, 
 stop the rotation to replace the service part, and 
 lower the attachment to the operational height. 
   
     
     
         15 . The work vehicle of  claim 14 , further comprising a hydraulic circuit communicatively coupled to the controller, the hydraulic circuit including a hydraulic pump coupled to the pair of boom actuators, and the pair of attachment actuators, the hydraulic pump delivering fluid through a plurality of flow paths, the plurality of flow paths coupled to the pair of boom actuators, the pair of attachment actuators, and at least one proportional valve, the controller configured to selectively adjust the at least one proportional valve as a function of an input signal corresponding to a desired attachment configuration, the controller automatically controlling the at least one proportional valve to achieve the desired attachment configuration. 
     
     
         16 . The work vehicle of  claim 14 , wherein the attachment comprises a cold planer, the rotatable component comprises a drum, and the service part comprises a pick. 
     
     
         17 . The work vehicle of  claim 14 , wherein the attachment comprises a brush cutter, the rotatable component comprises a blade shaft, and the service part comprises a blade coupled to the blade shaft. 
     
     
         18 . The work vehicle of  claim 14 , wherein the rotatable component is rotated in a pulsing movement. 
     
     
         19 . The work vehicle of  claim 14 , wherein the attachment comprises a mulching head, the rotatable component comprises a drum, and the service part comprises a tooth coupled to the drum. 
     
     
         20 . The work vehicle of  claim 14 , wherein the service height is set by an operator interface.